Why choose the TS04S Double-Sided Metallized Polypropylene Axial Capacitor Operates as a Non-Polar Film Capacitor

SUNTAN TECHNOLOGY COMPANY LIMITED · ALL KINDS OF CAPACITORS

TS04S double-sided metallized polypropylene axial film capacitor for high-voltage, low-loss power electronics.

This guide explains why the TS04S double-sided metallized polypropylene axial capacitor behaves as a non-polar film capacitor and how it can be used safely in AC and pulse circuits. It is written for design engineers, distributors and OEMs who need reliable axial film capacitors for high-dielectric strength applications.

1. Why Non-Polar Axial Film Capacitors Matter

Polypropylene film capacitors with double-sided metallization, such as the TS04S, are inherently non-polar. The dielectric is an insulating polypropylene film, and the electrode layers are applied on both sides of the film, so there is no “positive” or “negative” terminal required for normal operation.

• Support for AC and bidirectional pulse signals without reverse-voltage damage
• Stable capacitance and low ESR over time
• Reduced assembly errors and simplified PCB layout (no polarity marking required)
• Long service life and strong thermal resilience compared with many electrolytics

In applications where the voltage reverses or the waveform is symmetrical (AC coupling, snubber networks, timing circuits), non-polar film capacitors like TS04S are a safer and more predictable choice than polarized capacitors.

2. Technical Advantages and Cross-Brand Compatibility

The TS04S series is available across a broad voltage range and multiple can sizes, which gives distributors and OEMs flexible stocking options and easier cross-reference mapping against other brands.

• High-voltage PP axial options for demanding power electronics
• Double-sided metallization supports controlled self-healing at localized faults
• Low dielectric loss suitable for precision and high-frequency circuits
• Cross-brand replacement lists and datasheets available for sourcing and qualification

For distributors, this means one TS04S family can cover multiple part numbers from other manufacturers, while maintaining consistent electrical performance and mechanical fit.

3. Applications Optimized for TS04S

Typical use cases where TS04S non-polar axial film capacitors are especially effective:

• Timing circuits and pulse shaping where low loss and stable capacitance are critical
• SMPS, LED drivers and inverters using high-voltage, high-frequency switching
• AC filtering and snubber networks across relays, SCRs and power semiconductors
• Precision and industrial-grade circuits requiring long-term stability and low drift

4. Recommended Video: Inside the TS04S

Engineering overview of the TS04S double-sided metallized polypropylene axial capacitor structure and how it achieves non-polar AC performance.

Explore TS04S drawings, voltage options and request samples:

View TS04S Series Engineering & Procurement Contact

Always refer to the official Suntan datasheets for detailed ratings, safety notes and design limits.

Why High-Voltage Circuits Prefer Polypropylene Film Capacitors — A Simple Guide to the TS09Q Series

SUNTAN TECHNOLOGY · FILM CAPACITOR ENGINEERING NOTES

A technical education guide for sourcing teams, component brokers and global distributors who need a reliable polypropylene film capacitor line for high-voltage applications.

Suntan TS09Q High-Voltage Polypropylene Film Capacitor — official product image.

What Makes TS09Q Attractive to Distributors?

Unlike electrolytics, polypropylene film capacitors behave predictably under high voltage stress and temperature swings. For distributors, this means fewer returns, fewer cross-reference issues, and a smoother supply chain with repeatable performance across batches.

• SMPS high-voltage DC filtering
• Lighting ballasts and LED drivers
• General HV buffering
• Inductive load control

Its metallized polypropylene structure and controlled self-healing improve long-term reliability.

TS09Q Series – official catalog product appearance.

Voltage Range, Construction and Expected Lifetime

The TS09Q is rated 630V, 1000V and 2000V. Polypropylene film capacitors provide:

• Low dielectric loss for HV filtering
• Stable capacitance over temperature
• Self-healing capability for fault isolation
• Predictable ESR for SMPS power stages

These characteristics make cross-reference selection simpler for distributors.

Inside Suntan’s Film Capacitor Process

Inside Suntan’s film capacitor process — how stability and HV endurance are achieved.

When to Recommend TS09Q to Your Customers

Distributors can position the TS09Q as a stable, HV-capable substitute when customers need:

• Long service lifetime
• Heat-resistant PP structure
• Low-loss filtering at high voltage
• Stable supply with competitive MOQ

Check voltage options, dimensions and complete specifications:

View TS09Q Specifications Request Technical Support

6×6mm vs Vertical Tactile Switch｜Quick Selection Guide

SUNTAN TECHNOLOGY · FILM CAPACITOR ENGINEERING NOTES

TS09Q 630V–2000V Film Capacitor Guide for Distributors

A technical education guide for sourcing teams, component brokers and global distributors who need a reliable polypropylene film capacitor line for high-voltage applications.

Suntan TS09Q high-voltage polypropylene film capacitor – official product image.

Scope: This note focuses on TS09Q metallized polypropylene film capacitors in the 630V, 1000V and 2000V range, from a distributor and cross-reference perspective. Detailed electrical curves and derating data should be taken from the official datasheet.

1. What Makes TS09Q Attractive to Distributors?

Unlike electrolytics, polypropylene film capacitors behave predictably under high voltage stress and temperature swings. For distributors, this means fewer returns, fewer cross-reference issues, and a smoother supply chain with repeatable performance across batches.

• SMPS high-voltage DC filtering
• Lighting ballasts and LED drivers
• General HV buffering
• Inductive load control

The TS09Q uses a metallized polypropylene structure with controlled self-healing, improving long-term reliability in demanding power designs.

2. Voltage Range, Construction and Expected Lifetime

The TS09Q is available in 630V, 1000V and 2000V versions. Polypropylene film capacitors in this range typically provide:

• Low dielectric loss for high-voltage filtering stages
• Stable capacitance over a wide temperature window
• Self-healing capability that localizes faults and preserves service life
• Predictable ESR for SMPS power stages and snubber positions

These characteristics make cross-reference work easier for distributors – part selection is more about case size and lead spacing, less about unexpected drift or failure modes.

3. Mechanical Outline and Product Appearance

TS09Q series – official catalog product appearance for easy visual cross-reference.

From a stocking perspective, TS09Q keeps a standardized box-film outline with straight leads, making it a practical fit for:

• General-purpose HV filter positions on through-hole PCBs
• Retrofit of legacy box-film capacitors with similar pitch
• Compact SMPS boards that still rely on THT components

4. Inside the Manufacturing Process (Video)

Suntan film capacitor manufacturing overview – useful for explaining stability, self-healing and high-voltage endurance to end customers.

This type of video is often used by distributors’ FAE teams to justify long service life claims and to build confidence in alternative or second-source proposals.

5. When to Recommend TS09Q to Your Customers

TS09Q can be positioned as a stable, high-voltage capable substitute when design engineers or buyers request:

• Long service lifetime in SMPS or ballast designs
• Heat-resistant PP structure instead of electrolytics in hot zones
• Low-loss filtering at 630–2000V with predictable behaviour
• Stable supply with competitive MOQ and clear series roadmap

For BOM tools, TS09Q can be tagged as:
“HV polypropylene film capacitor – 630V/1000V/2000V – box type, general-purpose filtering”.

Check voltage options, dimensions and complete specifications:

View TS09Q Specifications Request Technical Support

SUNTAN TECHNOLOGY COMPANY LIMITED · ALL KINDS OF CAPACITORS

Image: Suntan TS12 Supercapacitor — 5.5V, low ESR, long life, compact PCB footprint.

5.5V Supercapacitors That Keep Memory Alive – TS12 Series

Advanced energy storage for IoT and memory backup systems

In embedded electronics, ensuring memory retention during power interruptions remains a fundamental challenge. The Suntan TS12 5.5V Coin Type Supercapacitor delivers compact, efficient, and stable gold capacitor energy storage for MCUs, RTCs, and non-volatile memory.

Compared with traditional cells in the ongoing supercapacitor vs battery discussion, TS12 emphasizes low ESR, EDLC technology, and consistent power backup for IoT devices under transient loads — a maintenance-free capacitor approach favored in high reliability designs.

2. Technical Overview

The TS12 offers a rated voltage of 5.5V, a capacitance range of 0.047F–1.0F, and a low-ESR structure for efficient energy delivery. Its compact coin-type form factor provides high volumetric efficiency even in space-limited metering and sensor platforms.

Parameter	Specification
Rated Voltage	5.5 V
Capacitance Range	0.047 F – 1.0 F
Operating Temperature	–25 °C ~ +70 °C
Cycle Life	>100,000 cycles
Compliance	Pb-Free, RoHS

Ideal for RAM data backup, smart meters, communication modules, and sensor nodes requiring stable voltage retention during brief power interruptions.

For broader voltage and package options, see the Suntan TS12 Series overview.

3. Performance Characteristics

The TS12 bridges the gap between batteries and electrolytic capacitors, offering superior endurance, low ESR, and instant response under transient conditions. Typical energy density (2–10 Wh/kg) is complemented by high power density (>10 kW/kg), resulting in predictable behavior for deterministic embedded control and data integrity.

• Instant energy delivery during power loss
• Maintenance-free and environmentally considerate
• Stable performance across wide temperature ranges
• Compact structure for PCB integration

Video: Suntan TS12 — energy storage for smart meters, IoT devices, and memory backup.

4. Application Fields

• Smart Meters — maintains configuration memory during power loss
• IoT Gateways/Nodes — provides micro-power backup for wireless modules
• Industrial Controllers — stabilizes logic during transient voltage dips
• Real-Time Clock Circuits — preserves timing across brief disconnections

5. Battery vs. Supercapacitor

• Cycle Life: 100,000+ vs. <1,000 cycles
• Response Time: milliseconds vs. seconds
• Thermal Range: wide operational tolerance
• Maintenance: zero vs. periodic replacement

The TS12 applies proven EDLC technology to replace or complement coin-cell batteries, delivering a maintenance-free energy solution for high reliability energy components in embedded platforms.

Explore TS12 Series Contact Suntan Engineering

© Suntan Technology Co., Ltd. All Rights Reserved. Technical data are subject to change without notice.

How to Select a Rectifier Diode for Power Supply or LED Driver

SUNTAN TECHNOLOGY COMPANY LIMITED · ALL KINDS OF CAPACITORS

Selecting the right rectifier diode is a critical step in designing a switch-mode power supply (SMPS) or LED driver circuit. A mismatch between voltage, current, and recovery characteristics can lead to higher thermal loss, unstable operation, or even device failure.

This guide explains how to choose a rectifier diode based on reverse voltage rating (VRRM), average forward current (IF(AV)), forward voltage drop (VF), reverse leakage current, and thermal resistance (RθJL) — using Suntan ES2J, RS3M, SS310, and SS510 as real examples.

Scope This application note compares fast recovery rectifiers and Schottky barrier rectifiers, using four Suntan parts (ES2J, RS3M, SS310, SS510). We focus on reverse voltage rating (VRRM), average forward current (IF(AV)), forward voltage drop (VF), reverse recovery behavior (trr), surge capability (IFSM), and thermal resistance (RθJL). The goal is to help you select an efficient fast switching diode / low VF Schottky rectifier for SMPS, LED lighting, telecom DC power rails, and industrial control systems.

1. Identify Your Circuit Type

Match application stress before you open a datasheet

Different circuits impose different electrical stresses on diodes. Before you even shortlist parts, clarify where the diode sits:

Common diode use cases Typical ranges

Circuit Application	Common Voltage Range	Recommended Type
SMPS Output Stage	5–48 V	Schottky Diode (SS310 / SS510)
AC/DC Converter (Primary)	85–265 V AC	Fast Recovery Diode (ES2J / RS3M)
LED Driver (Constant Current)	12–48 V	Low-VF Schottky Diode
Motor Control / Inverter	400–1000 V	Super Fast Rectifier (RS3M)

Schottky diodes are ideal for low-voltage, high-efficiency rails. Fast recovery and super fast types survive high-voltage / inductive stress.

2. Evaluate Key Parameters

VRRM, IF(AV), VF, trr, thermal path

Reverse Voltage (VRRM)

VRRM defines the maximum reverse bias the diode can withstand.

• For 24 V or 48 V rails, pick diodes rated at least 2× the working voltage.
• Example: SS310 (100 V) or SS510 (100 V) for 24–48 V DC rails.

Average Forward Current (IF(AV))

The diode must handle continuous load current.

• Small rails / LED drivers: 2–3 A class (ES2J / SS310)
• SMPS secondary / power modules: 5 A class (SS510)

Forward Voltage Drop (VF)

Lower VF = lower conduction loss.

• Schottky diodes: ~0.55–0.85 V typical
• Fast recovery diodes: ~1.0–1.3 V typical. Dropping VF from ~1.3 V to ~0.7 V can improve conversion efficiency by about 2–3% in compact supplies.

Reverse Recovery Time (trr)

Important for fast recovery parts.

• ES2J: 35 ns (super fast switching)
• RS3M: 150–500 ns (high-voltage class). For high-frequency SMPS (>100 kHz), you want shorter trr.

Thermal Resistance (RθJL)

Lower RθJL means better heat flow into the PCB copper. Suntan SMC-class rectifiers typically specify ≤15 °C/W, supporting stable operation under load.

3. Comparing Suntan Rectifier Diodes

ES2J / RS3M / SS310 / SS510

Rectifier performance summary (SMD packages) Typical values

Model	Type	Voltage (VRRM)	Current (IF(AV))	VF (V)	trr (ns)	Typical Use
ES2J	Super Fast	600 V	2 A	1.25	35	SMPS PFC, inverter
RS3M	Fast Recovery	1000 V	3 A	1.30	150–500	Industrial control
SS310	Schottky	100 V	3 A	0.85	—	LED driver, DC/DC
SS510	Schottky	100 V	5 A	0.85	—	High-current SMPS output

Data source: Suntan datasheets for ES2J, RS3M, SS310, SS510.

4. Practical Selection Workflow

Step-by-step decision path

1. Define input / output voltage → determines VRRM.
2. Estimate average current → pick IF(AV) with ≥20% margin.
3. Check power efficiency goals → prefer lower VF to cut heat.
4. Confirm switching frequency → Schottky for MHz-level, fast recovery for high-voltage kHz stages.
5. Assess temperature / cooling → lower RθJL and solid PCB copper for thermal safety.

5. Typical Use Cases

Where each diode family fits best

• SMPS Secondary Rectification: SS510 for low VF and 5 A surge capability.
• Inverter Feedback Path: ES2J for fast recovery and voltage robustness.
• LED Driver Output: SS310 for compact, efficient low-loss operation.
• Industrial Controller: RS3M for 1000 V blocking voltage and surge reliability.

6. FAQ

Design notes for SMPS, telecom power, LED drivers

Q1. Why not use Schottky diodes everywhere?

Because they have lower reverse voltage ratings (≤100 V). High-voltage rails still require fast recovery / super fast parts like ES2J or RS3M.

Q2. What causes diode overheating?

Excessive forward current or a high VF part in a high-load rail. You solve it by choosing proper IF(AV) headroom and good thermal resistance.

Q3. Can I replace RS3M with SS510 for better efficiency?

Not 1:1. RS3M is rated 1000 V. SS510 is only 100 V. Always confirm your voltage margin and snubber network before substitution.

7. Conclusion

Picking the right rectifier for reliability

Choosing the correct rectifier diode depends on a balance between voltage, current, VF, and thermal resistance.

For low-voltage SMPS or LED driver applications, Schottky rectifiers like SS310 / SS510 deliver low forward loss and high efficiency. For high-voltage conversion or industrial control, ES2J / RS3M remain reliable fast recovery options with strong surge behavior.

Matching datasheet limits to real circuit stress is what protects thermal margin, prevents runaway heat, and keeps field reliability high.

8. Contact, Datasheets & Media

Samples, cross-reference, application review

For full electrical characteristics and rectifier diode datasheets (fast recovery, fast switching, Schottky barrier / low VF), please contact Suntan. Our engineering team supports part selection, thermal evaluation, and form-fit-function replacement for SMPS, LED lighting, telecom power rails, and industrial control.

Request Engineering Support Get a Quote / Sample

Figure 1. Rectifier overview (video)

Overview of Suntan ES2J / RS3M fast recovery rectifiers and SS310 / SS510 Schottky barrier rectifiers. Typical usage: switch-mode power supplies (SMPS), LED driver output, telecom DC rails, and industrial control modules where low forward voltage and thermal stability matter.

Figure 2. Package / application reference

ES2J (super fast recovery), RS3M (fast switching), SS310 / SS510 (Schottky, low VF). These DO-214AA / DO-214AB SMD rectifier diodes are widely used in AC/DC front ends, DC/DC converters, LED lighting drivers, and telecom / industrial power modules where surge capability and thermal margin are critical.

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Best High Frequency Silver Mica Capacitor for RF Filters – Suntan TS23 Review

In RF and precision analog design, component stability defines circuit reliability. Engineers who deal with oscillators, filters, and high-voltage amplifiers know how a minor capacitance shift can detune entire systems. Over time, heat, humidity, and electrical stress can compromise performance — unless the component is engineered to resist them.

The Suntan TS23 Series Silver Mica Capacitors have earned respect among designers for one reason: predictable behavior across decades of voltage, frequency, and temperature cycles. They aren’t flashy components — they are workhorses that quietly keep oscillators locked, filters aligned, and amplifiers linear.

Understanding Why Stability Matters

At RF frequencies, even a 1% drift in capacitance can shift resonance, distort phase, or reduce Q-factor. While ceramic capacitors are often used for general tuning, their dielectric properties change under DC bias or thermal variation. Mica, however, remains one of the most dimensionally and electrically stable materials available, especially when paired with silver electrodes.

The TS23 series builds upon this foundation with low dielectric absorption, minimal dissipation factor (≤0.0010 @ 1 MHz), and excellent insulation resistance. These characteristics allow circuits to maintain frequency and phase accuracy even under load, making them well-suited for RF signal chains, instrumentation, and precision audio equipment.

Suntan TS23 – built on precision silver-mica technology for RF, audio, and industrial systems.

Key Electrical Characteristics

• Capacitance Range: 1 pF – 100,000 pF
• Rated Voltage: 50 VDC / 100 VDC / 300 VDC / 500 VDC
• Dissipation Factor: ≤ 0.0010 @ 1 MHz
• Temperature Range: –55 °C to +200 °C
• Tolerance Options: ±0.5 pF, ±1%, ±2%, ±5%~20%
• Insulation Resistance: ≥1,000 MΩ @100 VDC, 25 °C

Engineering Insights from the Field

Designers who have used the TS23 series often highlight its long-term consistency. In RF filter applications, frequency drift after years of operation remains negligible — a result of tight dielectric control and silver electrode bonding. In high-voltage circuits, engineers report steady insulation values even after prolonged thermal cycling.

Unlike standard film capacitors, which can exhibit moisture absorption or dielectric fatigue, the TS23 maintains a low-loss characteristic and high Q-factor across its entire life span. These qualities make it not just a reliable component, but a stable design reference for precision equipment manufacturers.

Typical Applications

• RF and IF filters in communication modules
• Oscillator and frequency control circuits
• High-voltage analog and test instrumentation
• Precision audio amplifiers and tone control networks
• Industrial power systems and impedance monitoring units

Conclusion

The Suntan TS23 Silver Mica Capacitor isn’t designed to impress with specs alone — it’s designed to maintain trust over time. Whether you are tuning a narrowband RF stage or stabilizing an analog amplifier, the TS23 delivers measurable precision and repeatable performance under stress.

Its predictable dielectric behavior, strong insulation, and thermal endurance make it a reference-grade component for any circuit where reliability and electrical integrity are non-negotiable.

Learn More About TS23 Series Contact Suntan

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What Makes Suntan TSR-Series Wirewound Resistors Stand Out?

Suntan Technology Company Limited – All Kinds of Capacitors

Learn the difference between trimming potentiometers and wirewound resistors — and why the Suntan TSR-Series (TSR-11~TSR-16) is built for both precision and power in industrial automation and load testing.

Open TSR-Series product page

Suntan TSR-Series — combining trimming precision with wirewound power for real-world control and testing.

Quick Primer: Trimming Potentiometer vs. Wirewound Resistor

• What is a trimming potentiometer? A small, adjustable resistor used to fine-tune voltage or current. TSR-11~TSR-13 fit calibration and control panels.
• What is a wirewound resistor? A power-capable resistor made from wound metal wire, preferred for heat handling and stability. TSR-14~TSR-16 target load banks, braking, and test fixtures.
• Wirewound vs. metal film? Wirewound handles higher wattage and thermal stress; metal film suits low-noise precision at lower power.

How to Choose — A Simple 4-Step Workflow

1. Define function: Adjustment needed? → TSR-11~13. Power dissipation/load? → TSR-14~16.
2. Estimate power: Use P = I²R or P = V²/R to size wirewound models for load testing.
3. Check environment: Consider ambient temperature, cooling, mounting (aluminum housed / heat-sink ready).
4. Derate conservatively: Choose a rating comfortably above your calculated power for reliability margin.

Worked Example: Sizing a Load Resistor

Suppose you need a 20 Ω load at 30 V for a bench test. Power is P = V²/R = 900/20 = 45 W. For continuous testing, select a wirewound model with headroom beyond 45 W and provide adequate heat sinking. Within the TSR family, refer to the wirewound range (TSR-14~TSR-16) and choose per the datasheet’s thermal guidance.

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Myths vs. Facts (Wirewound Resistors & Trimming Potentiometers)

Query / Keyword

Myth

Fact & Action

wirewound resistor noise

Always noisy

For power/load, prioritize thermal stability & wattage. Noise is acceptable vs film types’ limits.

trimming potentiometer calibration

Any pot is fine

Panel repeatability depends on shaft 6.35 mm, mounting, tolerance; use TSR-11~13.

power resistor heat dissipation

Wattage alone solves heat

Heatsink, airflow, and derating are essential; size with P=I²R/P=V²/R → TSR-14~16.

Watch: From Precision Control to Power Load

Video: TSR-Series applications — trimming potentiometers for precision control and wirewound power resistors for load testing.

Learn More

FAQ — What People Search For

Q1. What is a trimming potentiometer?
It’s a variable resistor for fine adjustment; TSR-11~13 are compact, panel-friendly options.

Q2. How to use a potentiometer?
Route the wiper (middle pin) to the signal you want to adjust; rotate to change resistance/voltage.

Q3. Wirewound resistor vs metal film — which to pick?
Pick wirewound for load/power and thermal robustness; metal film for low-noise precision at lower power.

Q4. Which resistor is best for load testing?
TSR-14~16 wirewound resistors are built for high power and heat dissipation; follow datasheet guidance.

All Kinds of Capacitors — Your Trusted Partner in Electronic Components