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

Taiwan Semiconductor Corporation SRAS8100H

Name: SRAS8100H
Brand: Taiwan Semiconductor Corporation
SKU: SRAS8100H
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SRAS8100H

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

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

Datasheet:: SRAS8100H.pdf

Description:: DIODE SCHOTTKY 100V 8A TO263AB

Quantity:: RFQ Add To RFQ list

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Inventory:9,032

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Product details

Overview

SRAS8100H from Taiwan Semiconductor is a single-die AEC-Q101-qualified Schottky barrier rectifier in TO-263AB (D2PAK) package, rated for 100 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 low forward voltage drop (V_F = 0.95 V at 8 A, 25°C) and supports automotive-grade reverse battery protection and DC/DC converter freewheeling.

For engineers reviewing the SRAS8100H datasheet, SRAS8100H pinout, SRAS8100H application, or SRAS8100H equivalent, key selection factors include its 100 V V_RRM, 0.95 V V_F at full load, 150 A I_FSM, AEC-Q101 qualification, and TO-263AB thermal performance (R_θJC = 3°C/W).

Technical Context

This Schottky rectifier uses a single silicon die optimized for low conduction loss and high surge robustness. Its guard ring structure enhances overvoltage ruggedness, while the matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.

Designed for operation up to 150°C junction temperature, it maintains <100 µA reverse leakage (I_R) at 25°C and ≤5 mA at 125°C under rated V_R, supporting stable performance in thermally demanding automotive lighting and power conversion environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum blocking voltage before avalanche; defines safe operating range in 12–48 V automotive systems with transients.
I_F	8 A - Continuous forward current rating at case temperature ≤110°C; supports compact heatsinking in space-constrained converters.
I_FSM	150 A - Peak non-repetitive surge current (8.3 ms half-sine); withstands load dump and inductive kick events.
V_F	0.95 V @ 8 A, 25°C - Low conduction loss enables >92% efficiency in 12 V → 5 V/3.3 V synchronous rectifier replacements.
R_θJC	3°C/W - Junction-to-case thermal resistance; allows direct mounting to PCB copper pour or heatsink for thermal management.
I_R	≤100 µA @ 100 V, 25°C - Minimal leakage preserves battery life in always-on reverse polarity protection circuits.
AEC-Q101	Qualified - Validated for automotive component stress testing including HTOL, TC, HTRB, and UHAST per AEC standard.

Pinout & Package

Package: TO-263AB (D2PAK) - Surface-mount power package with exposed drain pad for thermal dissipation and mechanical anchoring. Dimensions per JEDEC MS-013AC; moisture sensitivity level (MSL) 1 (unlimited floor life).

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 2)	Forward current entry point	Connected to input rail (e.g., battery +); must be routed with low-inductance trace for high-di/dt switching.
Cathode (Lead 3)	Forward current exit / reverse blocking terminal	Connected to switch node or ground return; serves as main power path output in freewheeling configuration.
Exposed Pad (Drain)	Thermal and electrical connection to cathode	Internally tied to cathode; requires full-solder coverage to PCB copper for optimal R_θJC and mechanical reliability.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive under-hood use including temperature cycling, high-temp operating life, and unbiased HAST.
Guard ring structure	Improves edge termination ruggedness, enabling reliable operation at ≥90% of V_RRM under transient overvoltage.
Low V_F (0.95 V)	Reduces conduction loss by ~35% vs. comparable 100 V Si fast recovery diodes, lowering thermal design burden.
150 A I_FSM	Supports single-event surge immunity in 12 V battery systems without external snubbers or derating.
Halogen-free & RoHS	Complies with IEC 61249-2-21 and EU RoHS Directive; suitable for global automotive OEM supply chains.

Applications

Automotive Reverse Battery Protection	DC/DC Converter Freewheeling Diode
Use Scenario: Prevents damage to vehicle ECUs during incorrect battery jump-start or installation. IC Role / Device Role / Timing Role: Unidirectional current blocker placed between battery input and downstream power rails. Use Value: Withstands 100 V reverse bias continuously and 150 A surge during clamp events, eliminating need for TVS supplementation.	Use Scenario: Provides low-loss current path during MOSFET off-time in buck or flyback topologies. IC Role / Device Role / Timing Role: Passive freewheeling element synchronized to switching node transitions. Use Value: 0.95 V V_F minimizes conduction loss at 8 A, improving converter efficiency by 1.2–1.8% over Si alternatives.
LED Headlamp Driver Output Stage	12 V Automotive Inverter Output Rectification
Use Scenario: Supplies regulated current to high-brightness LED arrays in adaptive front lighting systems. IC Role / Device Role / Timing Role: Output rectifier in constant-current buck-boost driver stage. Use Value: AEC-Q101 qualification ensures reliability across -40°C to +150°C ambient, matching LED thermal envelope.	Use Scenario: Converts high-frequency AC from inverter bridge to stable DC for auxiliary loads (e.g., HVAC fans). IC Role / Device Role / Timing Role: High-speed output rectifier handling 20–100 kHz switching frequencies. Use Value: Low junction capacitance and fast recovery enable clean waveform capture without ringing or EMI spikes.

Automotive Reverse Battery Protection

DC/DC Converter Freewheeling Diode

Use Scenario: Prevents damage to vehicle ECUs during incorrect battery jump-start or installation.

IC Role / Device Role / Timing Role: Unidirectional current blocker placed between battery input and downstream power rails.

Use Value: Withstands 100 V reverse bias continuously and 150 A surge during clamp events, eliminating need for TVS supplementation.

Use Scenario: Provides low-loss current path during MOSFET off-time in buck or flyback topologies.

IC Role / Device Role / Timing Role: Passive freewheeling element synchronized to switching node transitions.

Use Value: 0.95 V V_F minimizes conduction loss at 8 A, improving converter efficiency by 1.2–1.8% over Si alternatives.

LED Headlamp Driver Output Stage

12 V Automotive Inverter Output Rectification

Use Scenario: Supplies regulated current to high-brightness LED arrays in adaptive front lighting systems.

IC Role / Device Role / Timing Role: Output rectifier in constant-current buck-boost driver stage.

Use Value: AEC-Q101 qualification ensures reliability across -40°C to +150°C ambient, matching LED thermal envelope.

Use Scenario: Converts high-frequency AC from inverter bridge to stable DC for auxiliary loads (e.g., HVAC fans).

IC Role / Device Role / Timing Role: High-speed output rectifier handling 20–100 kHz switching frequencies.

Use Value: Low junction capacitance and fast recovery enable clean waveform capture without ringing or EMI spikes.

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-8EWH10	Same V_RRM (100 V), higher I_F (12 A), slightly higher V_F (1.05 V @ 8 A), TO-263AB package.	Higher current headroom but increased conduction loss; better suited for 10 A continuous designs.	Select when system margin requires >8 A derated current or higher I_FSM (200 A).
ON Semiconductor SB8100	Identical V_RRM (100 V), same I_F (8 A), lower V_F (0.87 V @ 8 A), TO-263AB package, AEC-Q101 qualified.	Lower forward drop improves efficiency in thermally constrained layouts; identical footprint enables drop-in evaluation.	Select when minimizing conduction loss is prioritized and layout reuse is required.

Compared with VS-8EWH10 and SB8100, the SRAS8100H offers balanced trade-offs: lower V_F than Vishay's part and AEC-Q101 validation unlike many legacy equivalents, while maintaining proven thermal performance (R_θJC = 3°C/W) critical for automotive under-hood placement.

Availability

SRAS8100H is available at Aetrix Electronics and suitable for automotive reverse battery protection, DC/DC converter freewheeling, and LED headlamp driver applications requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.

Supply support for SRAS8100H 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 power discrete manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and consumer markets since 1979.

The SRAS8xxxH series targets high-reliability automotive power conversion, delivering Schottky rectifiers with AEC-Q101 validation, guarded die structures, and optimized thermal packaging for under-hood deployment.

FAQ

What is the maximum junction temperature rating for SRAS8100H?

The SRAS8100H has a maximum junction temperature (T_J) rating of +150°C, validated per AEC-Q101 test conditions. This enables operation in high-ambient environments such as engine compartments, provided thermal design maintains case temperature within limits defined by the derating curve in the datasheet. The SRAS8100H achieves this rating using a robust die attach and guard ring structure.

Is SRAS8100H pin-compatible with other parts in the SRAS8xxxH family?

Yes, all SRAS8xxxH devices-including SRAS8100H-share identical TO-263AB (D2PAK) package dimensions, pinout, and thermal pad layout. This allows board-level substitution across the 20 V to 150 V voltage range without PCB modification, though electrical parameters (V_RRM, V_F, I_R) vary per variant and must be verified for each application.

Does SRAS8100H require special handling for moisture sensitivity?

No-SRAS8100H is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and does not require dry pack storage or baking prior to reflow. This simplifies manufacturing logistics and eliminates moisture-related popcorning risk during lead-free reflow, supporting high-yield automated placement.

What is the reverse leakage current specification for SRAS8100H at elevated temperature?

At T_J = 125°C and rated V_R = 100 V, the SRAS8100H exhibits ≤5 mA reverse leakage current (I_R). This value is confirmed in the Electrical Specifications table and supports reliable operation in hot under-hood locations where ambient temperatures exceed 85°C and thermal design margins are tight.

Can SRAS8100H replace a standard silicon fast recovery diode in a 12 V automotive buck converter?

Yes-the SRAS8100H can directly replace silicon fast recovery diodes in 12 V buck converters, delivering lower forward voltage (0.95 V vs. 1.2–1.7 V), faster recovery, and reduced switching losses. Its 100 V V_RRM provides sufficient margin for load dump transients, and AEC-Q101 qualification ensures suitability for automotive deployment where the SRAS8100H is specified.

SRAS8100H 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):: 100 V

Current - Average Rectified (Io):: 8A

Voltage - Forward (Vf) (Max) @ If:: 950 mV @ 8 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 100 µA @ 100 V

Capacitance @ Vr, F:: -

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

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

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

SRAS8100H FAQ

1.How can I place an order for SRAS8100H through Aetrix?

Please submit a Request for Quotation (RFQ) for SRAS8100H 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 SRAS8100H reliable?

The price and inventory of SRAS8100H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRAS8100H is usually 5 days.

3.What payment methods are accepted for SRAS8100H?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRAS8100H transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SRAS8100H?

SRAS8100H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SRAS8100H 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 SRAS8100H?

For technical support, including SRAS8100H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRAS8100H requirements.

6.How does Aetrix verify that SRAS8100H is sourced from the original manufacturer or authorized distributors?

All SRAS8100H 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 SRAS8100H meets industry standards.

7.What is the process for return or replacement of SRAS8100H?

All SRAS8100H units undergo pre-shipment inspection (PSI). If there is an issue with SRAS8100H, 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 SRAS8100H part is unused and in its original packaging.

Return procedure for SRAS8100H:

1.Submit a request within 90 days.

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

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