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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation SRAS860

Name: SRAS860
Brand: Taiwan Semiconductor Corporation
SKU: SRAS860
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SRAS860

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: SRAS860.pdf

Description:: 8A, 60V, SCHOTTKY RECTIFIER

Quantity:: RFQ Add To RFQ list

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Inventory:7,630

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Product details

Overview

SRAS860 from Taiwan Semiconductor is a single-die Schottky barrier rectifier in TO-263AB (D2PAK) package, rated for 60 V repetitive peak reverse voltage (V_RRM), 8 A average forward current (I_F), and 150 A non-repetitive surge current (I_FSM). It delivers 0.70 V typical forward voltage at 8 A and 25°C, enabling high-efficiency operation in DC–DC converters and AC/DC adapters.

For engineers reviewing the SRAS860 datasheet, SRAS860 pinout, SRAS860 application, or SRAS860 equivalent, key selection criteria include its 60 V V_RRM, 0.70 V V_F @ 8 A, 150 A I_FSM, 3 °C/W R_θJC, and TO-263AB thermal performance-critical for compact, high-power-density power supplies.

Technical Context

The SRAS860 operates as a unidirectional surface-mount power rectifier with guard ring structure for overvoltage protection and JESD201 Class 2 whisker resistance. Its 60 V V_RRM and 0.70 V V_F balance low conduction loss with sufficient blocking margin for 48 V system-derived rails.

Thermally, it features 3 °C/W junction-to-case resistance and supports continuous operation up to 125°C junction temperature. The TO-263AB package enables high-current PCB mounting with exposed cathode tab for direct heatsinking.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	60 V - Blocking capability suitable for 48 V nominal input systems with safety margin
I_F	8 A - Continuous DC output current rating for mid-power SMPS stages
I_FSM	150 A - Withstands 8.3 ms half-sine surge, supporting inrush and fault transients
V_F @ 8 A, 25°C	0.70 V - Low conduction loss improves efficiency vs. silicon diodes in 12–48 V outputs
R_θJC	3 °C/W - Enables direct thermal coupling to heatsink or copper pour for thermal management
T_J max	125 °C - Rated for industrial ambient environments without derating below 100°C case temp
I_R @ 60 V, 25°C	100 µA - Low leakage preserves standby efficiency in energy-sensitive designs

Pinout & Package

TO-263AB (D2PAK) package with three terminals: Anode (lead 1), Cathode (exposed tab/lead 2–3 shorted), and no isolated gate or control pin. Cathode tab provides primary thermal and electrical path.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Input anode connection	Soldered to high-side switching node or transformer secondary; carries full forward current
Cathode (Tab + Leads 2–3)	Output cathode connection	Exposed metal tab serves as main current return and thermal interface; must be soldered to large copper area

Key Features

Feature	Design Value
Guard ring structure	Enhances ruggedness against transient overvoltage without external snubbers
Moisture sensitivity level 1	Eliminates bake requirement before reflow, reducing manufacturing cost and risk
Matte tin-plated leads	Ensures reliable solder wetting per J-STD-002, compatible with lead-free and SnPb processes
UL 94V-0 molding compound	Meets flammability requirements for enclosed power adapters and industrial equipment
Halogen-free per IEC 61249-2-21	Supports RoHS-compliant and environmentally regulated end products

Applications

Server VRM Output Rectification	Industrial 48 V DC–DC Converter
Use Scenario: High-current, low-voltage output stage of multiphase buck converter supplying CPU/GPU core power. IC Role / Device Role / Timing Role: Primary synchronous rectifier replacement; conducts during low-side MOSFET on-time to minimize conduction loss. Use Value: 0.70 V V_F reduces conduction loss by ~40% vs. 1.1 V Si diode, directly improving VRM efficiency at 8 A load.	Use Scenario: Isolated flyback or forward converter powering PLC I/O modules in factory automation. IC Role / Device Role / Timing Role: Secondary-side freewheeling rectifier handling 8 A continuous output at 24 V. Use Value: 150 A I_FSM withstands repeated motor startup surges without degradation, ensuring long-term reliability.
Medical Power Adapter	Telecom Remote Radio Unit (RRU)
Use Scenario: Compact, fanless AC/DC adapter for portable diagnostic equipment requiring low EMI and high efficiency. IC Role / Device Role / Timing Role: Output rectifier in quasi-resonant flyback operating at 65–100 kHz. Use Value: Low 100 µA reverse leakage at 25°C maintains <100 mW no-load power, meeting IEC 62301 standby limits.	Use Scenario: Base station power supply converting -48 V telecom bus to 12 V for RF amplifiers. IC Role / Device Role / Timing Role: Input-side OR-ing diode in redundant -48 V feed, conducting only during normal operation. Use Value: 60 V V_RRM provides 20% margin above -48 V nominal, preventing breakdown during line transients.

Server VRM Output Rectification

Industrial 48 V DC–DC Converter

Use Scenario: High-current, low-voltage output stage of multiphase buck converter supplying CPU/GPU core power.

IC Role / Device Role / Timing Role: Primary synchronous rectifier replacement; conducts during low-side MOSFET on-time to minimize conduction loss.

Use Value: 0.70 V V_F reduces conduction loss by ~40% vs. 1.1 V Si diode, directly improving VRM efficiency at 8 A load.

Use Scenario: Isolated flyback or forward converter powering PLC I/O modules in factory automation.

IC Role / Device Role / Timing Role: Secondary-side freewheeling rectifier handling 8 A continuous output at 24 V.

Use Value: 150 A I_FSM withstands repeated motor startup surges without degradation, ensuring long-term reliability.

Medical Power Adapter

Telecom Remote Radio Unit (RRU)

Use Scenario: Compact, fanless AC/DC adapter for portable diagnostic equipment requiring low EMI and high efficiency.

IC Role / Device Role / Timing Role: Output rectifier in quasi-resonant flyback operating at 65–100 kHz.

Use Value: Low 100 µA reverse leakage at 25°C maintains <100 mW no-load power, meeting IEC 62301 standby limits.

Use Scenario: Base station power supply converting -48 V telecom bus to 12 V for RF amplifiers.

IC Role / Device Role / Timing Role: Input-side OR-ing diode in redundant -48 V feed, conducting only during normal operation.

Use Value: 60 V V_RRM provides 20% margin above -48 V nominal, preventing breakdown during line transients.

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 TO-263AB package, 60 V V_RRM, but 0.67 V V_F @ 8 A and 175 A I_FSM	Higher surge rating suits applications with frequent hot-plug events	Prefer when surge margin >150 A is required; verify layout compatibility with slightly different die size
ON Semiconductor SB860	TO-263AB, 60 V V_RRM, 0.72 V V_F @ 8 A, 125 A I_FSM, higher R_θJC = 3.5 °C/W	Lower surge and thermal performance; suited for lower-stress consumer adapters	Acceptable where 125 A surge suffices and thermal headroom exceeds 5°C/W

Compared with VS-8EWH06FN-M3 and SB860, the SRAS860 offers balanced trade-offs: tighter V_F tolerance than SB860 and more conservative surge rating than VS-8EWH06FN-M3-ideal for industrial 48 V DC–DC where reliability and thermal predictability outweigh marginal efficiency gains.

Availability

SRAS860 is available at Aetrix Electronics and suitable for switching mode power supplies, DC–DC converters, and AC/DC adapters requiring stable component supply, consistent parametric performance, and long-term industrial availability.

Supply support for SRAS860 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 SRAS8xx series targets high-efficiency, surface-mount power rectification in industrial, telecom, and computing power supplies-designed specifically for TO-263AB thermal scalability and automated assembly robustness.

FAQ

What is the maximum junction temperature rating for the SRAS860?

The SRAS860 has a maximum junction temperature (T_J) rating of 125°C under continuous operation. This rating applies across its full voltage range and is validated per JEDEC standards. Operation beyond 125°C risks irreversible degradation of the Schottky junction. Derating is required above 100°C case temperature, and thermal design must ensure the SRAS860 junction stays within this limit under worst-case load and ambient conditions.

Does the SRAS860 have a specified reverse recovery time (t_rr)?

No, the SRAS860 does not specify reverse recovery time because it is a Schottky barrier diode, which operates via majority-carrier conduction and exhibits negligible reverse recovery charge (Q_rr ≈ 0). Unlike PN-junction diodes, the SRAS860 switches with near-zero reverse recovery loss-confirmed by its absence in all electrical specifications tables and characterization curves. This makes the SRAS860 ideal for high-frequency SMPS where t_rr-related losses dominate.

What is the marking code printed on the SRAS860 device body?

Each SRAS860 device is marked with "SRAS860" as the primary identification code on its top surface, per the manufacturer's ordering information and marking diagram. This marking is laser-etched or molded into the UL 94V-0 compliant epoxy package and is visible without magnification. No secondary date or factory codes affect part identity-the SRAS860 marking uniquely identifies the 60 V variant within the SRAS8xx family.

Is the SRAS860 suitable for use in automotive applications?

The SRAS860 is not qualified to AEC-Q101 or automotive-grade reliability standards. While its 125°C T_J max and robust construction suit industrial environments, Taiwan Semiconductor explicitly states these devices are "not designed for use in medical, life-saving, or life-sustaining applications"-a category that includes automotive safety-critical systems. For automotive 12 V or 48 V subsystems, AEC-Q101-qualified alternatives must be selected instead of the SRAS860.

How many units of SRAS860 are supplied per reel in tape-and-reel packaging?

The SRAS860 is supplied in tape-and-reel packaging with 800 units per reel, as specified in the official ordering information. This quantity is standardized across the entire SRAS8xx family and aligns with industry-standard TO-263AB carrier tape dimensions. Reels are compatible with standard SMT pick-and-place equipment and meet moisture sensitivity level 1 (MSL-1) requirements, eliminating bake steps prior to reflow soldering.

SRAS860 Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Tape & Reel (TR)

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:: 100 µA @ 60 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-263AB (D2PAK)

Operating Temperature - Junction:: -55°C ~ 150°C

SRAS860 FAQ

1.How can I place an order for SRAS860 through Aetrix?

Please submit a Request for Quotation (RFQ) for SRAS860 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 SRAS860 reliable?

The price and inventory of SRAS860 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRAS860 is usually 5 days.

3.What payment methods are accepted for SRAS860?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRAS860 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SRAS860?

SRAS860 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SRAS860 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 SRAS860?

For technical support, including SRAS860 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRAS860 requirements.

6.How does Aetrix verify that SRAS860 is sourced from the original manufacturer or authorized distributors?

All SRAS860 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 SRAS860 meets industry standards.

7.What is the process for return or replacement of SRAS860?

All SRAS860 units undergo pre-shipment inspection (PSI). If there is an issue with SRAS860, 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 SRAS860 part is unused and in its original packaging.

Return procedure for SRAS860:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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