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.
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 — 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:
SUNTAN TECHNOLOGY COMPANY LIMITED · ALL KINDS OF CAPACITORS
Scope:
This guide compares 6×6 mm tactile switches and vertical side-actuated tactile switches using Suntan’s TSS-TC / TSS-TD series as typical examples.
For full mechanical drawings and datasheets, please refer to the product page linked at the end.
1. Why Engineers Often Compare 6×6 mm and Vertical Tactile Switches
In HMI (Human–Machine Interface) design, 6×6 mm tactile switches and vertical side-actuated tactile switches
frequently appear in the same design discussions because they solve similar user tasks with different mechanical orientations.
6×6 mm switches are the industry baseline mechanical form, with a stable footprint, wide height options, predictable force curve and simple qualification.
Vertical tactile switches provide side-entry actuation for enclosures where the user presses from the device edge rather than the top.
For engineers and sourcing teams, choosing between these families directly affects mechanical stack-up, user experience, long-term serviceability and manufacturing cost.
2. At-a-Glance: 6×6 mm vs Vertical Tactile Switch
Parameter
6×6 mm tactile switch
Vertical tactile switch
Actuation direction
Top press
Side press
Height options
Very wide (4,3–17 mm)
Low-profile
Mounting
THT + SMD
Mostly SMD
Assembly flexibility
High
Medium
Force stability
Excellent
Good
Enclosure flexibility
Standard
Excellent for thin designs
Replacement ecosystem
Very strong
Moderate
Best use
Industrial, consumer, general HMI
Compact, edge-access products
Shortcut: if you need top access, start from 6×6 mm; if you need side access, start from vertical types.
3. Mechanical Orientation: Top-Actuated vs Side-Actuated
3.1 6×6 mm Tactile Switch (Top-Actuated)
Actuation direction: vertical, downward
Typical height availability: 4,3–17,0 mm
Travel: 0,20–0,35 mm
Force options: 100–350 gf
Mounting: available in THT and SMD
Best for: front-panel buttons, control interfaces, test jigs, general-purpose consumer and industrial electronics
3.2 Vertical Tactile Switch (Side-Actuated)
Actuation direction: horizontal, lateral
Mounted parallel to the PCB
Lower height with a very compact Z-profile
Typical travel: ≈0,20 mm
Best for: slim devices, edge-mounted interfaces, wearable and handheld enclosures, space-limited control boards
4. Engineering Constraints That Should Drive the Decision
4.1 Enclosure and Stack-Up
Design requirement
Better option
Reason
Thick front panel
6×6 mm
Many height and peg options maintain button feel
Ultra-thin casing
Vertical
Minimal Z-height and side press solve clearance limits
PCB parallel to enclosure wall
Vertical
Allows user actuation from the device edge
4.2 Force Curve Stability
6×6 mm tact switches have been in high-volume production for decades, resulting in:
very stable force–travel characteristics
predictable HMI feedback
easier multi-supplier cross-qualification
Vertical switches are consistent as well, but the variation between manufacturers is usually larger.
4.3 Assembly Method & Manufacturing Impact
Manufacturing scenario
Better option
Notes
Mixed SMD + THT line
6×6 mm
Can use either THT or SMD versions based on the specific model
Pure SMD reflow
Vertical or 6×6 mm SMD
Choice depends mainly on enclosure requirements
Hand-soldered prototypes
6×6 mm
Larger body is easier to handle and rework
High-volume automation
Both
Selection should follow mechanical orientation and panel layout
6×6 mm as a general stocking SKU, with a standardized body, many qualified suppliers and a clear replacement ecosystem.
Vertical switches:
are slightly more application-specific,
are well-suited for compact consumer electronics,
are usually offered as SMD-only parts.
5. Application Mapping (Practical Shortcuts)
5.1 Choose 6×6 mm when:
You need consistent tactile feel across multiple products
Your enclosure is button-friendly (front panel design)
The product requires durability under repeated stress
You want multiple second-source options available
5.2 Choose Vertical when:
The button sits on the edge of the device
You need a low Z-height solution
PCB orientation restricts top actuation
The product is compact, handheld or wearable
6. Typical 6×6 mm Tactile Switch Examples
Below are typical through-hole and SMD 6×6 mm tactile switches often used as the reference point
when comparing with vertical side-actuated tact switches.
TSS-TC-12XA · multi-height through-hole 6×6 mm tact switch
TSS-TC-0010 · low-profile 3,8 mm actuator
TSS-TC-0010 · top view for compact keypads
TSS-TC-12XA · extended actuator for deep front panels
TSS-TD-03XG · 6×6 mm SMD style for reflow
7. Application Video: Waterproof & Vertical Tactile Switch Use Cases
Suntan Technology – vertical type and through-hole waterproof tactile switches in real applications.
Useful as a visual reference when comparing 6×6 mm top-actuated tact switches with side-actuated vertical types.
Suntan Technology – vertical type and through-hole waterproof tactile switches in real applications.
Useful as a visual reference when comparing 6×6 mm top-actuated tact switches with side-actuated vertical types.
8. Recommended Use in Distributor BOM Tooling
For distributors, these two families serve different catalog roles:
6×6 mm → “General Stocking SKU”
Vertical → “Application-Specific SKU”
This segmentation makes it easier to suggest alternates without risking form-fit-function mismatches in customers’ designs.
Explore mechanical drawings, height options and force configurations:
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.
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.
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 casesTypical 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.
Data source: Suntan datasheets for ES2J, RS3M, SS310, SS510.
4. Practical Selection Workflow
Step-by-step decision path
Define input / output voltage → determines VRRM.
Estimate average current → pick IF(AV) with ≥20% margin.
Check power efficiency goals → prefer lower VF to cut heat.
Confirm switching frequency → Schottky for MHz-level, fast recovery for high-voltage kHz stages.
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.
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.
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.
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.
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
Define function: Adjustment needed? → TSR-11~13. Power dissipation/load? → TSR-14~16.
Estimate power: Use P = I²R or P = V²/R to size wirewound models for load testing.
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.
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.
Suntan Technology Company Limited – All Kinds of Capacitors
Need a quick look at TS20S specs before sourcing? Watch the overview above, then dive into the essentials below.
If you’re comparing polymer vs MnO₂ for SSD, telecom, or DC/DC, this will save you time.
Ultra-low ESR polymer tantalum capacitor for reliable, cool-running designs.
What TS20S Solves
TS20S is built around one goal: cut ESR so your power stages run cooler and more efficiently.
In continuous ripple scenarios, it maintains stable behavior, helping extend product lifetime and reduce failure risks.
That’s why it frequently appears in SSD controllers, telecom base stations, notebooks, and DC/DC converters.
Datasheet Essentials
The TS20S conductive polymer chip tantalum series offers a practical mix of capacitance options with a
wide voltage range (2.5–63 V) and an operating window up to +125 °C.
Its ultra-low ESR design helps minimize heat and power loss, giving you a more predictable thermal profile and reliability headroom in dense layouts.
How Engineers Use It
In real deployments, swapping to TS20S often lowers operating temperature a few critical degrees in tight enclosures,
which compounds into longer service intervals and fewer RMA events—exactly what sourcing teams want to see on lifetime cost.
