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Taiwan Semiconductor Corporation SSL34HM6G
- Part No.:
- SSL34HM6G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SSL34HM6G.pdf
- Description:
- DIODE SCHOTTKY 40V 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,704
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Product details
Overview
SSL34HM6G from Taiwan Semiconductor is a 40 V, 3 A surface-mount Schottky barrier rectifier in DO-214AB (SMC) package, optimized for high-efficiency switching mode power supplies and lighting converters with low forward voltage (≤0.41 V at 3 A, 25°C) and high surge capability (100 A, 8.3 ms).
For engineers reviewing the SSL34HM6G datasheet, SSL34HM6G pinout, SSL34HM6G application, or SSL34HM6G equivalent, key selection criteria include repetitive peak reverse voltage (40 V), junction temperature range (–55°C to +125°C), thermal resistance (RθJL = 13°C/W), moisture sensitivity level (MSL 1), and RoHS/halogen-free compliance.
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 low VF and high IFSM support high-frequency, high-efficiency DC/DC conversion in compact layouts.
Thermal performance is characterized on a 16 mm × 16 mm Cu pad PCB: RθJA = 53°C/W, RθJC = 15°C/W. Reverse leakage is specified at 500 µA (25°C) and 100 mA (100°C) for SSL34, enabling stable operation under elevated ambient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum non-repetitive reverse blocking voltage; defines upper limit for input/output rail isolation in SMPS designs |
| IF | 3 A - Continuous average forward current rating at 25°C ambient; derates linearly above 25°C per curve Fig.1 |
| IFSM | 100 A - Peak non-repetitive surge current (8.3 ms half-sine); supports cold-start and transient overload handling |
| VF | ≤0.41 V - Forward voltage drop at 3 A, 25°C; directly reduces conduction loss and improves system efficiency |
| RθJL | 13 °C/W - Junction-to-lead thermal resistance; enables direct thermal path to PCB copper for passive cooling |
| TJ max | +125 °C - Maximum operating junction temperature; sets thermal design margin for enclosed or high-ambient environments |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, molded plastic case meeting UL 94V-0; polarity indicated by cathode band; weight ≈ 0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., switch node or ground return) in buck/flyback output stage |
| Cathode | Forward current exit point | Connected to output rail; cathode band marks this terminal for correct PCB orientation and assembly verification |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Enhances ruggedness against transient overvoltage events without external snubbers in flyback or boost topologies |
| Moisture sensitivity level 1 | Eliminates bake requirements prior to reflow; compatible with standard SMT assembly lines without dry-pack handling |
| High surge current capability (100 A) | Withstands repeated inrush and fault currents in AC/DC adapters and LED drivers without degradation |
| RoHS and halogen-free compliance | Meets global environmental regulations for industrial, consumer, and lighting end equipment shipments |
Applications
| AC/DC Adapters | LED Lighting Drivers |
|---|---|
Use Scenario: Secondary-side rectification in 12–24 V, 15–60 W offline flyback adapters for consumer electronics. IC Role / Device Role / Timing Role: Schottky rectifier replacing slower diodes to reduce conduction loss and improve efficiency >88% at full load. Use Value: Low VF (≤0.41 V) cuts power dissipation by ~35% vs. standard PN diodes, lowering heatsink requirements. | Use Scenario: Output rectification in constant-current LED drivers for commercial downlights and streetlights. IC Role / Device Role / Timing Role: High-reliability, low-loss rectifier in isolated DC/DC stages driving 350–700 mA strings. Use Value: MSL 1 and 125°C TJ max ensure long-term stability in thermally constrained LED housings. |
| Industrial SMPS | DC/DC Converters |
Use Scenario: Input or output rectification in 24–48 V industrial power modules for PLCs and sensors. IC Role / Device Role / Timing Role: Primary rectifier in unregulated auxiliary rails or secondary rectifier in regulated outputs. Use Value: 100 A IFSM withstands motor startup surges and ESD-coupled transients in factory-floor environments. | Use Scenario: Synchronous rectifier replacement in isolated 5–12 V, 3–5 A buck-derived converters. IC Role / Device Role / Timing Role: Discrete Schottky solution where controller lacks synchronous gate drive or layout space is limited. Use Value: DO-214AB footprint allows direct placement on high-current traces without vias, reducing parasitic inductance. |
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-3EWH04-M3/5BT | Same DO-214AB package, 40 V VRRM, but higher VF (0.52 V typ. @ 3 A) and lower IFSM (75 A) | Suitable for lower-surge environments; less robust in high-inrush lighting or adapter applications | Select when cost sensitivity outweighs efficiency or surge margin requirements |
| ON Semiconductor SB340-TB | DO-214AA (SMB) package, 40 V VRRM, 3 A IF, but higher RθJA (65°C/W) and no guard ring | Limited to lower-power or better-ventilated designs; not recommended for sealed LED fixtures | Choose only if SMB footprint is fixed and thermal headroom exceeds 20°C margin |
Compared with VS-3EWH04-M3/5BT and SB340-TB, SSL34HM6G delivers superior surge robustness (100 A), lower conduction loss (≤0.41 V), and integrated overvoltage protection-making it optimal for thermally constrained, high-reliability adapter and lighting systems.
Availability
SSL34HM6G is available at Aetrix Electronics and suitable for AC/DC adapters, LED lighting drivers, and industrial SMPS requiring stable component supply, consistent MSL-1 handling, and long-lifecycle availability.
Supply support for SSL34HM6G 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 global power and protection markets since 1979.
The SSL32–SSL34 family targets high-efficiency, surface-mount Schottky rectification in cost-sensitive yet thermally demanding applications such as consumer adapters and commercial LED drivers.
FAQ
What is the maximum repetitive peak reverse voltage rating for SSL34HM6G?
The SSL34HM6G has a VRRM of 40 V, meaning it can reliably block up to 40 V of reverse voltage in repetitive operation. This rating applies across its full operating temperature range (–55°C to +125°C) and is validated per JEDEC test conditions. Exceeding 40 V may cause avalanche breakdown or permanent damage. The SSL34HM6G is part of the SSL32–SSL34 series, where SSL32 = 20 V and SSL33 = 30 V.
Does SSL34HM6G require baking before reflow soldering?
No, SSL34HM6G does not require baking prior to reflow. It is rated Moisture Sensitivity Level 1 (MSL 1) per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH and placed directly into standard lead-free reflow profiles without preconditioning. This eliminates process steps and reduces risk of moisture-induced popcorning during assembly.
What is the forward voltage drop of SSL34HM6G at 3 A and 100°C junction temperature?
The SSL34HM6G datasheet specifies VF ≤ 0.41 V at 3 A and 25°C. At 100°C, VF decreases slightly due to Schottky physics, but the datasheet does not provide a guaranteed max value at elevated temperature. Designers should use the 25°C value for worst-case loss calculation, as thermal derating of VF does not offset increased leakage or reliability concerns at TJ = 100°C.
Is SSL34HM6G pin-compatible with other DO-214AB Schottky rectifiers?
Yes, SSL34HM6G uses the industry-standard DO-214AB (SMC) package with anode and cathode terminals in fixed positions per JEDEC outline. Its pinout matches all DO-214AB rectifiers-including Vishay, ON Semi, and Diodes Inc. parts-enabling mechanical drop-in replacement. However, electrical parameters (e.g., VF, IFSM, leakage) differ, so functional validation is required.
What marking code appears on the SSL34HM6G device body?
The SSL34HM6G is marked "SL34" on the device body, per the ordering code convention defined in the Taiwan Semiconductor datasheet. The full marking includes "SL34" as the part identifier, followed by date code (e.g., "YW"), factory code ("F"), and green compound indicator ("G"). This matches the SSL32 (SL32) and SSL33 (SL33) variants in the same family.
SSL34HM6G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 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:
- 500 µA @ 40 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
SSL34HM6G FAQ
1.How can I place an order for SSL34HM6G through Aetrix?
Please submit a Request for Quotation (RFQ) for SSL34HM6G 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 SSL34HM6G reliable?
The price and inventory of SSL34HM6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SSL34HM6G is usually 5 days.
3.What payment methods are accepted for SSL34HM6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SSL34HM6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SSL34HM6G?
SSL34HM6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SSL34HM6G 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 SSL34HM6G?
For technical support, including SSL34HM6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SSL34HM6G requirements.
6.How does Aetrix verify that SSL34HM6G is sourced from the original manufacturer or authorized distributors?
All SSL34HM6G 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 SSL34HM6G meets industry standards.
7.What is the process for return or replacement of SSL34HM6G?
All SSL34HM6G units undergo pre-shipment inspection (PSI). If there is an issue with SSL34HM6G, 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 SSL34HM6G part is unused and in its original packaging.
Return procedure for SSL34HM6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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