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Taiwan Semiconductor Corporation SK510CH
- Part No.:
- SK510CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SK510CH.pdf
- Description:
- DIODE SCHOTTKY 100V 5A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,990
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Product details
Overview
SK510CH from Taiwan Semiconductor is a 5A, 100V Schottky barrier rectifier in DO-214AB (SMC) package, AEC-Q101 qualified for automotive use, with 0.85V forward voltage at 5A/25°C, 0.3mA reverse current at rated VR and 120A surge capability - deployed in car lighting and DC/DC converter freewheeling paths.
For engineers reviewing the SK510CH datasheet, SK510CH pinout, SK510CH application, or SK510CH equivalent, key selection criteria include its 100V VRRM rating, low VF for thermal efficiency, AEC-Q101 qualification for under-hood reliability, and DO-214AB surface-mount compatibility with automated assembly.
Technical Context
The SK510CH uses a single-die Schottky structure optimized for low forward voltage and fast switching in high-frequency DC/DC topologies. Its guard ring design enhances overvoltage robustness, and moisture sensitivity level 1 ensures no baking requirement before reflow.
Thermal performance is defined by RθJL = 13°C/W and RθJA = 53°C/W on a 16mm × 16mm Cu pad PCB. Junction temperature range spans −55°C to +150°C, supporting operation in engine compartment environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse voltage; defines safe blocking capability in 12–48V automotive systems. |
| IF | 5 A - Continuous forward current; supports sustained power delivery in compact DC/DC converters. |
| VF @ 5A, 25°C | 0.85 V - Low conduction loss enabling >92% efficiency in 5–12V buck stages. |
| IR @ 100V, 25°C | 0.3 mA - Minimal leakage for stable bias networks and reverse-battery protection circuits. |
| IFSM | 120 A - Peak surge rating allows survival of load dump transients per ISO 7637-2. |
| TJ max | +150 °C - Enables placement near heat sources in automotive ECUs without derating. |
| RθJL | 13 °C/W - Efficient junction-to-lead heat transfer supports high-power density layouts. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount plastic case with matte tin-plated leads, cathode indicated by band, weight ≈0.210g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., switch node in synchronous buck); requires thermal pad connection for RθJL optimization. |
| Cathode | Forward current exit / reverse blocking terminal | Connected to output rail or ground return; polarity marking critical for reverse-battery protection function. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD22-A114. |
| Guard ring structure | Improves edge termination ruggedness, raising dV/dt rating to 10,000 V/µs for noise-immune operation. |
| Moisture sensitivity level 1 | Eliminates pre-bake requirement prior to reflow, reducing manufacturing overhead and floor-life constraints. |
| Halogen-free & RoHS compliant | Meets EU Directive 2011/65/EU and IPC-4101D, supporting green electronics compliance programs. |
Applications
| Automotive LED Headlamp Driver | 12V–48V DC/DC Buck Converter |
|---|---|
Use Scenario: High-current, thermally constrained LED driver in front-end vehicle lighting modules. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck regulator supplying constant current to LED arrays. Use Value: 0.85V VF minimizes conduction loss and heatsink size; AEC-Q101 ensures 15-year lifetime under thermal cycling. |
Use Scenario: Secondary-side rectification in isolated DC/DC converters powering ADAS sensors. IC Role / Device Role / Timing Role: Output rectifier replacing MOSFET synchronous switch where gate drive complexity must be avoided. Use Value: Fast recovery eliminates need for snubbers; 120A IFSM withstands startup surges without derating. |
| Reverse Battery Protection Circuit | Industrial 24V PLC Power Input Stage |
Use Scenario: Polarity protection at vehicle battery input to prevent damage during jump-start misconnection. IC Role / Device Role / Timing Role: Series-connected Schottky diode blocking reverse current while minimizing voltage drop. Use Value: 100V VRRM covers 24V system transients; 0.3mA IR prevents standby drain in always-on modules. |
Use Scenario: Input rectification and hold-up in programmable logic controller power supplies exposed to factory EMI. IC Role / Device Role / Timing Role: Primary rectifier handling continuous 5A load with transient overload tolerance. Use Value: RθJL = 13°C/W enables direct copper pour mounting; DO-214AB footprint fits legacy 24V board layouts. |
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-50WQ10FN-M3/45 | Same 100V VRRM, 5A IF, but TO-220AC package; VF = 0.72V @ 5A (lower loss), RθJA = 40°C/W (better ambient dissipation). | Requires through-hole mounting and larger board area; unsuitable for high-density SMT automotive modules. | Select when thermal budget permits larger footprint and leaded assembly is acceptable. |
| ON Semiconductor SB5100-E3/54 | DO-214AA (SMA) package, same 100V/5A rating, VF = 0.85V @ 5A, but IFSM = 100A (20% lower) and no AEC-Q101 qualification. | Limited to industrial/commercial use; not validated for automotive temperature cycling or humidity exposure. | Select only for cost-sensitive non-automotive applications where qualification is not required. |
Compared with VS-50WQ10FN-M3/45 and SB5100-E3/54, the SK510CH uniquely combines AEC-Q101 qualification, DO-214AB SMT compatibility, and 120A surge rating - making it the only option qualified for under-hood automotive freewheeling where space, reliability, and transient immunity are jointly constrained.
Availability
SK510CH is available at Aetrix Electronics and suitable for automotive lighting, DC/DC converter freewheeling, and reverse battery protection requiring stable component supply across multi-year production cycles.
Supply support for SK510CH 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, specializing in power devices, rectifiers, and protection components since 1979.
The SK510CH belongs to TSC's AEC-Q101-qualified Schottky rectifier family designed specifically for automotive power conversion and protection - emphasizing low VF, high surge tolerance, and robust packaging for harsh-environment deployment.
FAQ
What is the maximum junction temperature rating for SK510CH?
The SK510CH has a maximum junction temperature (TJ) of +150°C, verified per absolute maximum ratings in the official datasheet. This rating enables reliable operation in engine bay environments and high-power-density DC/DC converters. Thermal design must ensure that actual junction temperature under worst-case load and ambient conditions remains below this limit. The SK510CH achieves this via RθJL = 13°C/W when mounted on a 16mm × 16mm copper pad.
Is SK510CH suitable for reverse battery protection in 24V automotive systems?
Yes, the SK510CH is suitable for reverse battery protection in 24V automotive systems due to its 100V VRRM, 0.3mA reverse leakage at 25°C, and AEC-Q101 qualification. Its low 0.85V forward voltage minimizes voltage drop and power loss during normal operation, while the guard ring structure improves robustness against line transients. The SK510CH is used in production-level body control modules and lighting ECUs for this exact purpose.
Does SK510CH have halogen-free and RoHS-compliant construction?
Yes, the SK510CH uses halogen-free molding compound and complies with RoHS Directive 2011/65/EU, as confirmed in the "Features" section of the official datasheet. Lead finish is matte tin, solderable per J-STD-002, and the device meets JESD201 Class 2 whisker resistance requirements - ensuring long-term reliability in lead-free reflow processes and environmentally regulated markets.
What is the surge current rating of SK510CH and how is it tested?
The SK510CH has a non-repetitive peak forward surge current (IFSM) rating of 120A, tested using an 8.3ms single half-sine wave superimposed on rated DC load, per JEDEC standards. This rating is validated across the full operating temperature range and supports survival of automotive load dump events (ISO 7637-2 Pulse 5a). The SK510CH maintains this rating without derating up to TJ = 125°C.
What package type does SK510CH use and what are its key mechanical features?
The SK510CH uses the DO-214AB (SMC) surface-mount package, with dimensions per JEDEC DO-214 Variation AB. Key mechanical features include matte tin-plated leads, UL 94V-0 flammability-rated molding compound, polarity indicated by cathode band, and moisture sensitivity level 1 (no bake required). Its 0.210g mass and standardized footprint enable compatibility with high-speed pick-and-place equipment and reflow profiles.
SK510CH 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):
- 100 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 850 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 300 µA @ 100 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SK510CH FAQ
1.How can I place an order for SK510CH through Aetrix?
Please submit a Request for Quotation (RFQ) for SK510CH 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 SK510CH reliable?
The price and inventory of SK510CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK510CH is usually 5 days.
3.What payment methods are accepted for SK510CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK510CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK510CH?
SK510CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK510CH 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 SK510CH?
For technical support, including SK510CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK510CH requirements.
6.How does Aetrix verify that SK510CH is sourced from the original manufacturer or authorized distributors?
All SK510CH 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 SK510CH meets industry standards.
7.What is the process for return or replacement of SK510CH?
All SK510CH units undergo pre-shipment inspection (PSI). If there is an issue with SK510CH, 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 SK510CH part is unused and in its original packaging.
Return procedure for SK510CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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