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Taiwan Semiconductor Corporation SRAF860
- Part No.:
- SRAF860
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
SRAF860.pdf
- Description:
- 8A, 60V, PLANAR SCHOTTKY
- Quantity:
- Payment:
- Shipping:
Inventory:4,980
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Product details
Overview
SRAF860 from Taiwan Semiconductor is an AEC-Q101-qualified 8A, 60V Schottky barrier rectifier in ITO-220AC package, featuring low forward voltage (0.70 V at 8A, 25°C), high surge capability (150 A), and junction-to-case thermal resistance of 5°C/W - deployed in automotive-grade DC-DC converters and industrial SMPS.
For engineers reviewing the SRAF860 datasheet, SRAF860 pinout, SRAF860 application, or SRAF860 equivalent, key selection factors include its 60 V repetitive peak reverse voltage, 10 mA reverse leakage at 100°C, 10,000 V/µs dv/dt rating, and compliance with UL 94V-0 and JESD201 Class 2 whisker requirements.
Technical Context
The SRAF860 operates as a single-die, unidirectional Schottky rectifier optimized for high-frequency switching topologies. Its guard ring structure provides over-voltage protection, while matte tin-plated leads ensure solderability per J-STD-002 and RoHS/halogen-free compliance per IEC 61249-2-21.
Thermally, it supports continuous operation up to TJ = 125°C (with derating above 25°C case temperature) and withstands storage temperatures from –55°C to +150°C. The ITO-220AC package enables direct heatsink mounting with ≤0.56 N·m torque.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60 V - maximum repetitive reverse blocking voltage; defines safe operating range in 48V–60V bus applications |
| IF | 8 A - average forward current; supports continuous conduction mode in 100W+ power stages |
| IFSM | 150 A - non-repetitive surge current (8.3 ms half-sine); handles inrush and fault transients |
| VF | 0.70 V @ 8A, 25°C - low conduction loss enabling >92% efficiency in 12V–48V output converters |
| RθJC | 5 °C/W - enables thermal design with ≤40°C temperature rise at full load using standard heatsinks |
| IR | 500 µA @ 60V, 25°C - low leakage preserves standby power in always-on systems |
| dv/dt | 10,000 V/µs - robust against fast-switching noise in SiC/GaN-based converters |
Pinout & Package
Package: ITO-220AC - insulated thermoplastic outline with isolated collector tab, UL 94V-0 rated molding compound, matte tin-plated leads, polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to input rail or switch node; requires low-inductance layout for EMI control |
| Cathode (Tab) | Forward current exit / thermal path | Electrically isolated metal tab serves as primary heat sink interface and cathode connection |
| Case (Isolated) | Thermal & mechanical anchor | Non-conductive mounting surface allows direct heatsink attachment without insulator washers |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, HTRB, and ESD testing |
| Guard ring structure | Prevents premature edge breakdown under transient overvoltage, improving reliability in noisy environments |
| Junction-to-case RθJC = 5°C/W | Enables compact thermal design with <30°C rise at 8A in forced-air or medium heatsink conditions |
| UL Recognized (E-326243) | Meets safety standards for end-equipment certification in industrial and medical auxiliary supplies |
| Halogen-free & RoHS compliant | Supports environmental compliance for global OEM programs and WEEE recycling requirements |
Applications
| Automotive DC-DC Converters | Industrial SMPS |
|---|---|
Use Scenario: 12V-to-48V bidirectional converter in 48V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck-boost stage. Use Value: Low VF reduces conduction loss by ~1.2W vs. comparable 60V Si diodes, extending thermal margin at 8A load. | Use Scenario: Secondary-side rectification in 300W telecom rectifier modules. IC Role / Device Role / Timing Role: High-efficiency freewheeling diode in active-clamp forward topology. Use Value: 150A IFSM withstands startup surges; 10,000 V/µs dv/dt prevents false triggering in fast-switching designs. |
| USB-C PD Adapters | Server VRMs |
Use Scenario: Secondary-side rectification in 100W GaN-based USB-C power adapters. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in quasi-resonant flyback outputs. Use Value: 500 µA IR at 25°C minimizes no-load power draw, aiding Level VI efficiency compliance. | Use Scenario: Point-of-load (POL) rectification in 48V-to-12V intermediate bus converters. IC Role / Device Role / Timing Role: Low-loss freewheeling element in multiphase buck converters. Use Value: ITO-220AC package allows direct thermal coupling to cold plate, reducing system thermal resistance by ≥1.8°C/W. |
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-8EWH06FN-M3 | Same ITO-220AC package, 8A/60V, but VF = 0.69V (typ), RθJC = 4.5°C/W, AEC-Q101 qualified | Marginally lower thermal resistance; identical automotive qualification level | Preferred where sub-5°C/W thermal performance is critical and footprint compatibility is required |
| ON Semiconductor MUR860EG | Ultrafast recovery rectifier (not Schottky), 8A/600V, VF = 1.7V (typ), RθJC = 4.0°C/W, no AEC-Q101 | Higher VF increases conduction loss; suitable only where reverse recovery immunity is prioritized over efficiency | Consider only in legacy designs requiring higher VRRM margin or EMI tolerance from slower switching |
Compared with VS-8EWH06FN-M3, the SRAF860 offers slightly higher VF but identical qualification and packaging; versus MUR860EG, it delivers 59% lower conduction loss and automotive-grade reliability - making SRAF860 optimal for efficiency-critical, temperature-stressed 48V–60V systems.
Availability
SRAF860 is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS, and USB-C PD adapters requiring stable component supply, AEC-Q101 validation, and long-term lifecycle support.
Supply support for SRAF860 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 automotive, industrial, and computing markets since 1979.
The SRAF8xx series targets high-reliability power conversion applications, specifically engineered to replace conventional silicon rectifiers in 20V–150V, 5A–8A switching supplies where low VF, thermal robustness, and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum junction temperature for the SRAF860?
The SRAF860 has a maximum junction temperature (TJ) rating of +125°C under continuous operation. It supports extended storage up to +150°C, but sustained operation above 125°C requires derating per the forward current derating curve in the datasheet. Thermal design must maintain TJ ≤125°C to ensure reliability and lifetime compliance in automotive and industrial applications using the SRAF860.
Is the SRAF860 pin-compatible with other devices in the SRAF8xx family?
Yes - all SRAF8xx devices, including SRAF860, share identical ITO-220AC packaging, pinout, and mechanical footprint. Anode (lead 1) and cathode (isolated tab) assignments are consistent across the series. This allows voltage-scaling substitutions (e.g., SRAF840 → SRAF860) without PCB changes, provided thermal and electrical margins remain within spec for the new VRRM and VF.
Does the SRAF860 require a heatsink in typical 8A operation?
Yes - at 8A continuous current, the SRAF860 dissipates approximately 5.6W (8A × 0.70V). With RθJC = 5°C/W, even minimal case-to-ambient resistance will exceed safe junction temperature limits. A heatsink maintaining TC ≤75°C is required; thermal interface material and mounting torque ≤0.56 N·m must be applied per datasheet guidelines for reliable SRAF860 operation.
What does the "H" suffix mean in SRAF860H?
The "H" suffix in SRAF860H denotes AEC-Q101 qualification - confirming that the device has passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per automotive reliability standards. Standard SRAF860 is not AEC-Q101 qualified; only SRAF860H carries this certification. Both share identical electrical specs, but SRAF860H is mandatory for automotive under-hood deployment.
How does the guard ring in the SRAF860 improve reliability?
The guard ring in the SRAF860 is a diffused p-type region surrounding the active Schottky junction. It equalizes electric field distribution at the die edge, preventing localized avalanche breakdown during voltage transients. This extends operational life in noisy environments like automotive 12V/48V buses and improves robustness against line surges in industrial SMPS - directly enhancing long-term reliability of the SRAF860 in real-world applications.
SRAF860 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-2 Full Pack
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 60 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 60 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
SRAF860 FAQ
1.How can I place an order for SRAF860 through Aetrix?
Please submit a Request for Quotation (RFQ) for SRAF860 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 SRAF860 reliable?
The price and inventory of SRAF860 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRAF860 is usually 5 days.
3.What payment methods are accepted for SRAF860?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRAF860 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SRAF860?
SRAF860 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SRAF860 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 SRAF860?
For technical support, including SRAF860 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRAF860 requirements.
6.How does Aetrix verify that SRAF860 is sourced from the original manufacturer or authorized distributors?
All SRAF860 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 SRAF860 meets industry standards.
7.What is the process for return or replacement of SRAF860?
All SRAF860 units undergo pre-shipment inspection (PSI). If there is an issue with SRAF860, 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 SRAF860 part is unused and in its original packaging.
Return procedure for SRAF860:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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