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Taiwan Semiconductor Corporation SSL32H
- Part No.:
- SSL32H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SSL32H.pdf
- Description:
- DIODE SCHOTTKY 20V 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,222
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Product details
Overview
SSL32H from Taiwan Semiconductor is a 3A, 20V repetitive peak reverse voltage Schottky barrier rectifier in DO-214AB (SMC) package, optimized for high-efficiency switching mode power supplies and lighting converters with low forward voltage (0.41V max at 3A, 25°C) and 100A surge capability.
For engineers reviewing the SSL32H datasheet, SSL32H pinout, SSL32H application, or SSL32H equivalent, key selection criteria include its AEC-Q101 qualification, 13°C/W junction-to-lead thermal resistance, moisture sensitivity level 1 rating, and cathode-band polarity marking - all critical for automotive-grade SMPS and industrial adapter designs.
Technical Context
This Schottky rectifier uses a single-die construction with guard ring overvoltage protection and matte tin-plated leads compliant with J-STD-002 solderability. Its 0.41V max forward voltage at 3A/25°C enables reduced conduction loss, while the 100A non-repetitive surge rating supports transient-heavy converter topologies.
The device operates across –55°C to +125°C junction temperature range and achieves 53°C/W junction-to-ambient thermal resistance on a 16mm × 16mm Cu pad PCB - enabling compact, thermally robust layouts in space-constrained lighting and adapter applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 20 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or buck converter freewheeling paths |
| IF | 3 A - Continuous average forward current; sets steady-state power handling capacity in DC-DC output stages |
| VF (max) | 0.41 V @ 3A, 25°C - Low conduction loss directly reduces heat generation and improves system efficiency |
| IFSM | 100 A - Peak surge current tolerance for 8.3ms half-sine; withstands startup inrush and line transients |
| RθJL | 13 °C/W - Junction-to-lead thermal resistance; enables direct thermal coupling to PCB copper for passive cooling |
| IR (max) | 200 μA @ 20V, 25°C - Low leakage preserves efficiency in high-impedance bias networks and standby circuits |
| TJ max | +125 °C - Maximum junction temperature; supports operation in enclosed, thermally demanding environments |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode-indicated band; molded plastic body meets UL 94V-0 flammability rating and JEDEC DO-214AB specification. Leads are matte tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to input/high-side node in buck/flyback secondary; requires adequate copper area for thermal dissipation |
| Cathode | Forward current exit point | Marked by visible band; ties to output/ground return path; polarity must be verified before placement |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for under-hood and infotainment power rails |
| Guard ring structure | Enhances reverse voltage ruggedness and prevents premature edge breakdown during voltage transients |
| Moisture sensitivity level 1 | No bake preconditioning required before reflow; simplifies SMT line integration and reduces manufacturing risk |
| Halogen-free & RoHS compliant | Meets global environmental compliance mandates without compromising thermal or electrical performance |
| High surge current capability | 100A IFSM rating supports robust operation in systems subject to lightning-induced surges or hot-plug events |
Applications
| LED Lighting Driver | AC-DC Adapter Output Rectification |
|---|---|
Use Scenario: High-efficiency constant-current LED driver in commercial downlights with 20–24V output. IC Role / Device Role / Timing Role: Output rectifier in secondary-side synchronous or Schottky configuration. Use Value: 0.41V VF minimizes conduction loss at 3A load, improving driver efficiency by >1.2% versus higher-VF alternatives. | Use Scenario: 12V/3A wall adapter for consumer electronics with tight thermal envelope. IC Role / Device Role / Timing Role: Freewheeling diode in flyback converter secondary winding. Use Value: 13°C/W RθJL enables direct thermal transfer to PCB ground plane, reducing heatsink need and BOM cost. |
| Automotive Interior Power Module | Industrial DC-DC Converter |
Use Scenario: 12V auxiliary power supply in vehicle infotainment head unit. IC Role / Device Role / Timing Role: Output rectifier in isolated DC-DC module meeting AEC-Q101 requirements. Use Value: AEC-Q101 qualification and –55°C to +125°C TJ range ensure reliable operation across automotive temperature extremes. | Use Scenario: 24V input to 5V/3A isolated converter in factory automation controller. IC Role / Device Role / Timing Role: Secondary-side rectifier in forward or flyback topology. Use Value: 100A IFSM rating handles repeated motor-start surges without degradation, extending service life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-3EWH02-M3/5BT | 20V VRRM, 3A IF, 0.45V VF max @ 3A - slightly higher forward drop | Same DO-214AB package but rated for 175°C TJ max - better for ultra-high-temp ambient use | Prefer when higher junction temperature margin is needed; verify layout compatibility with identical footprint |
| ON Semiconductor MBR320LSFT4G | 20V VRRM, 3A IF, 0.49V VF max @ 3A - higher conduction loss | AEC-Q101 qualified, same moisture sensitivity level - drop-in replacement where efficiency margin allows | Select when supply chain diversification is prioritized; expect ~0.08V higher VF impact on thermal design |
Compared with VS-3EWH02-M3/5BT and MBR320LSFT4G, SSL32H delivers the lowest VF (0.41V max) among 20V/3A Schottky rectifiers in DO-214AB, yielding superior thermal performance and efficiency in space- and thermally constrained adapters and lighting drivers.
Availability
SSL32H is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC-DC adapters requiring stable component supply, automotive-grade reliability, and high surge resilience.
Supply support for SSL32H includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and automotive markets since 1979.
The SSL32H belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability secondary-side rectification in automotive and industrial power conversion systems.
FAQ
What is the maximum repetitive peak reverse voltage rating for SSL32H?
The SSL32H has a maximum repetitive peak reverse voltage (VRRM) rating of 20 V. This value is explicitly specified in the Absolute Maximum Ratings table for the SSL32H variant and defines the highest reverse-biased voltage the device can block continuously without breakdown. Exceeding this rating risks irreversible avalanche failure.
Is SSL32H qualified for automotive applications?
Yes, SSL32H is AEC-Q101 qualified. This qualification confirms that the SSL32H has passed stress tests including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), making it suitable for automotive interior power modules, infotainment systems, and other non-safety-critical vehicle electronics.
What is the forward voltage drop of SSL32H under typical operating conditions?
The SSL32H exhibits a maximum forward voltage (VF) of 0.41 V at 3 A forward current and 25°C junction temperature. This value is measured under pulsed conditions (PW = 0.3 ms) and represents the upper limit of conduction loss - actual VF decreases at lower currents and increases slightly at elevated temperatures.
What package type does SSL32H use, and what are its key mechanical features?
SSL32H uses the DO-214AB (SMC) surface-mount package. Key mechanical features include a UL 94V-0 rated molding compound, matte tin-plated leads compliant with J-STD-002, cathode polarity indicated by a visible band, and a weight of approximately 0.210 g. The package outline conforms to JEDEC DO-214AB Variation AB.
Does SSL32H require moisture sensitivity baking before reflow soldering?
No, SSL32H has a moisture sensitivity level (MSL) of 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/60% RH without baking. This eliminates pre-reflow bake steps, reducing process complexity and preventing potential damage from unnecessary thermal exposure.
SSL32H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 20 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 410 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 20 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 125°C
SSL32H FAQ
1.How can I place an order for SSL32H through Aetrix?
Please submit a Request for Quotation (RFQ) for SSL32H on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SSL32H reliable?
The price and inventory of SSL32H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SSL32H is usually 5 days.
3.What payment methods are accepted for SSL32H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SSL32H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SSL32H?
SSL32H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SSL32H order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SSL32H?
For technical support, including SSL32H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SSL32H requirements.
6.How does Aetrix verify that SSL32H is sourced from the original manufacturer or authorized distributors?
All SSL32H products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SSL32H meets industry standards.
7.What is the process for return or replacement of SSL32H?
All SSL32H units undergo pre-shipment inspection (PSI). If there is an issue with SSL32H, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SSL32H part is unused and in its original packaging.
Return procedure for SSL32H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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