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Taiwan Semiconductor Corporation SRAF8150
- Part No.:
- SRAF8150
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
SRAF8150.pdf
- Description:
- 8A, 150V, PLANAR SCHOTTKY
- Quantity:
- Payment:
- Shipping:
Inventory:8,158
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Product details
Overview
SRAF8150 from Taiwan Semiconductor is an 8A, 150V Schottky barrier rectifier in ITO-220AC package, designed for high-efficiency DC/DC conversion and SMPS output stages. It features 0.95V forward voltage at 8A/25°C, 150A surge current capability, 10,000 V/µs dv/dt rating, and operates up to 150°C junction temperature in automotive-grade AEC-Q101-qualified variants.
For engineers reviewing the SRAF8150 datasheet, SRAF8150 pinout, SRAF8150 application, or SRAF8150 equivalent, key selection criteria include its 150V repetitive peak reverse voltage, low VF at high IF, thermal resistance of 5°C/W (junction-to-case), and suitability for high-frequency switching topologies requiring fast recovery and low conduction loss.
Technical Context
The SRAF8150 uses a single-die Schottky structure with guard ring over-voltage protection, enabling stable operation under transient stress. Its 150V VRRM and 5 mA reverse leakage at 125°C support robust performance in 48V–72V industrial and automotive power rails.
Thermally, it delivers 5°C/W RθJC in the ITO-220AC package, allowing direct heatsink mounting without isolation pads. The device is rated for 150A non-repetitive surge (8.3 ms half-sine), making it suitable for inrush-limited AC/DC front-ends and boost converter outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - Maximum repetitive reverse blocking voltage; defines usable input/output voltage range in buck, boost, and flyback secondary-side rectification |
| IF | 8 A - Continuous forward current rating at case temperature ≤ 100°C; sets minimum heatsink sizing for steady-state operation |
| IFSM | 150 A - Peak non-repetitive surge current (8.3 ms); supports short-term overload tolerance in PFC and motor drive clamp circuits |
| VF | 0.95 V @ 8A, 25°C - Low conduction loss enables >92% efficiency in 12V–48V output converters at full load |
| RθJC | 5 °C/W - Junction-to-case thermal resistance; allows direct thermal interface to heatsink for compact, high-power-density designs |
| TJ max | 150 °C - Maximum operating junction temperature; supports under-hood automotive and industrial ambient conditions |
| IR | 100 µA @ 150V, 25°C - Low reverse leakage preserves efficiency in high-impedance bias networks and standby circuits |
Pinout & Package
Package: ITO-220AC - Insulated TO-220 variant with electrically isolated tab (rated to 1500 VRMS per UL), matte tin-plated leads, UL 94V-0 molding compound, and 0.56 N·m maximum mounting torque.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to input/high-side node; must be routed with low-inductance path to minimize switching ringing |
| Cathode (Lead 2) | Forward current exit point | Connected to output/low-side node; serves as reference for gate drivers and feedback networks |
| Tab (Isolated) | Thermal interface / mechanical ground | Electrically isolated metal tab for direct heatsink attachment; no electrical connection required for circuit function |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Enhances edge termination reliability under repetitive over-voltage transients (e.g., load dump, inductive kick) |
| AEC-Q101 qualification (SRAF8150H) | Validated for automotive power modules requiring zero-defect reliability in engine control and ADAS subsystems |
| 10,000 V/µs dv/dt rating | Prevents false turn-on during fast-switching events in SiC/GaN-based converters operating above 1 MHz |
| UL Recognized (E-326243) | Meets safety requirements for primary-side isolation barriers and double-insulated power supplies |
| Halogen-free (IEC 61249-2-21) | Complies with RoHS and WEEE directives; eliminates corrosive halogen emissions during PCB reflow and end-of-life incineration |
Applications
| Server Power Supply | Automotive DC/DC Converter |
|---|---|
Use Scenario: 48V–12V bidirectional buck-boost converter in data center rack PSUs. IC Role / Device Role / Timing Role: Output synchronous rectifier replacing MOSFETs in high-frequency (>300 kHz) topology. Use Value: 0.95V VF reduces conduction loss by 35% vs. silicon diodes, improving full-load efficiency from 91% to 93.2%. | Use Scenario: 12V auxiliary supply in 48V mild-hybrid vehicle battery management system. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode in isolated flyback regulator powering MCU and sensors. Use Value: 150°C TJ max and AEC-Q101 qualification ensure uninterrupted operation under under-hood temperatures up to 105°C ambient. |
| Industrial Motor Drive | Telecom Rectifier Module |
Use Scenario: Snubberless clamp diode across IGBTs in 3-phase inverter stage. IC Role / Device Role / Timing Role: Transient energy dissipation path during switching transitions. Use Value: 150A IFSM withstands repeated motor stall currents without degradation; 10,000 V/µs dv/dt prevents spurious conduction. | Use Scenario: OR-ing diode in redundant -48V telecom rectifier shelf. IC Role / Device Role / Timing Role: Back-to-back reverse-blocking element enabling hot-swap and fault isolation. Use Value: 150V VRRM provides 3× margin over nominal -48V rail, ensuring long-term reliability during brownouts and polarity reversals. |
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-8EWH150 | Same 8A/150V rating; VF = 0.92V @ 8A, but RθJC = 6.5°C/W; no AEC-Q101 option | Preferred for cost-sensitive telecom where automotive qualification is unnecessary | Select when lower VF is prioritized over thermal performance and automotive compliance |
| ON Semiconductor MUR8150CT | Ultrafast silicon rectifier (not Schottky); VF = 1.7V @ 8A; higher loss, but 200°C TJ max and higher ESD immunity | Suitable for high-temperature environments where Schottky leakage would compromise regulation | Select only if reverse leakage at 125°C must be <1 µA - trades 0.75V higher VF for extreme thermal stability |
Compared with VS-8EWH150 and MUR8150CT, the SRAF8150 offers optimal balance of low VF, proven automotive qualification, and industry-leading thermal resistance - making it preferred for space-constrained, high-reliability 48V–72V power systems where efficiency and thermal headroom are co-critical.
Availability
SRAF8150 is available at Aetrix Electronics and suitable for server power supplies, automotive DC/DC converters, industrial motor drives, and telecom rectifier modules requiring stable component supply across multi-year production cycles.
Supply support for SRAF8150 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, TVS diodes, and rectifiers since 1979.
The SRAF8xxx series was developed specifically for high-efficiency, high-reliability power conversion in automotive and industrial applications - emphasizing low VF, robust surge handling, and AEC-Q101-compliant manufacturing.
FAQ
What is the maximum junction temperature rating for the SRAF8150?
The SRAF8150 has a maximum junction temperature (TJ) rating of +150°C, confirmed in the Absolute Maximum Ratings table. This allows continuous operation in high-ambient environments such as automotive under-hood locations or enclosed industrial enclosures. Derating curves show usable average forward current drops to ~5.5A at 100°C case temperature, ensuring safe thermal margins in real-world layouts.
Does the SRAF8150 have AEC-Q101 qualification?
Yes - the AEC-Q101-qualified version is designated SRAF8150H per the Ordering Information table. Standard SRAF8150 is not AEC-Q101 certified; only the "H" suffix variant undergoes full stress testing including temperature cycling, HTRB, and ESD per AEC-Q101 Rev D. For automotive applications, specify SRAF8150H to ensure compliance.
What is the forward voltage of the SRAF8150 at 8A and 100°C junction temperature?
The datasheet specifies VF = 0.95V only at TJ = 25°C. At elevated temperatures, VF decreases - typical Schottky behavior. While no exact value is given at 100°C, Fig.4 (Typical Forward Characteristics) shows ~0.82V at 8A and 100°C for SRAF8150. This reduction improves efficiency in thermally stressed conditions but requires verification via thermal simulation for final design validation.
Can the SRAF8150 replace the SRAF8100 in an existing design?
Yes - the SRAF8150 is a direct voltage-upgrade replacement for SRAF8100 (100V VRRM → 150V VRRM), sharing identical ITO-220AC package, pinout, thermal resistance, and 8A/150A ratings. No PCB changes are needed. However, VF increases slightly (0.85V → 0.95V), so verify conduction loss impact in high-duty-cycle applications before migration.
What is the reverse leakage current of the SRAF8150 at 150V and 125°C?
Per the Electrical Specifications table, the SRAF8150 exhibits ≤5 mA reverse current (IR) at rated VR = 150V and TJ = 125°C. This value is measured under pulse conditions (PW = 30ms) and reflects worst-case leakage in high-temperature operation - critical for standby power budgeting in always-on automotive modules.
SRAF8150 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):
- 150 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 150 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
SRAF8150 FAQ
1.How can I place an order for SRAF8150 through Aetrix?
Please submit a Request for Quotation (RFQ) for SRAF8150 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 SRAF8150 reliable?
The price and inventory of SRAF8150 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRAF8150 is usually 5 days.
3.What payment methods are accepted for SRAF8150?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRAF8150 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SRAF8150?
SRAF8150 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SRAF8150 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 SRAF8150?
For technical support, including SRAF8150 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRAF8150 requirements.
6.How does Aetrix verify that SRAF8150 is sourced from the original manufacturer or authorized distributors?
All SRAF8150 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 SRAF8150 meets industry standards.
7.What is the process for return or replacement of SRAF8150?
All SRAF8150 units undergo pre-shipment inspection (PSI). If there is an issue with SRAF8150, 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 SRAF8150 part is unused and in its original packaging.
Return procedure for SRAF8150:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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