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

Taiwan Semiconductor Corporation SRAS2030H

Name: SRAS2030H
Brand: Taiwan Semiconductor Corporation
SKU: SRAS2030H
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SRAS2030H

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

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

Datasheet:: SRAS2030H.pdf

Description:: 20A, 30V, PLANAR SCHOTTKY

Quantity:: RFQ Add To RFQ list

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Inventory:5,102

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Product details

Overview

SRAS2030H from Taiwan Semiconductor is a 20A, 30V AEC-Q101-qualified Schottky barrier rectifier in TO-263AB (D2PAK) package, featuring 0.57V forward voltage at 20A/25°C, 330A surge capability, and junction-to-case thermal resistance of 1.5°C/W. It serves as a freewheeling or reverse-battery protection diode in automotive DC/DC converters and car lighting systems.

For engineers reviewing the SRAS2030H datasheet, SRAS2030H pinout, SRAS2030H application, or SRAS2030H equivalent, key selection criteria include its 30V V_RRM, low VF under high IF, AEC-Q101 qualification, moisture sensitivity level 1 rating, and TO-263AB thermal performance for automotive-grade power conversion.

Technical Context

The SRAS2030H uses a single-die Schottky structure optimized for low forward conduction loss and fast switching with no reverse recovery charge. Its guard ring design enhances overvoltage ruggedness while maintaining stable leakage (<500 µA at 25°C, <15 mA at 100°C) across temperature.

Thermally, it relies on the TO-263AB package's exposed cathode tab for direct heatsinking, achieving 1.5°C/W R_θJC; its JESD201 Class 2 whisker resistance and matte tin plating ensure long-term solder joint reliability in automated SMT assembly.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	30 V - Maximum repetitive reverse voltage before breakdown; defines safe operating range in 12–24V automotive systems.
I_F	20 A - Continuous forward current rating at case temperature ≤ 110°C; supports high-current DC/DC output stages.
I_FSM	330 A - Non-repetitive surge current (8.3 ms half-sine); handles load dump transients in vehicle power nets.
V_F	0.57 V @ 20A, 25°C - Low conduction loss enabling >95% efficiency in synchronous rectifier replacement roles.
R_θJC	1.5 °C/W - Junction-to-case thermal resistance; enables direct thermal coupling to PCB copper or heatsink for thermal management.
T_J max	+150 °C - Maximum junction temperature; supports operation in under-hood environments with ambient up to +105°C.

Pinout & Package

TO-263AB (D2PAK) package with isolated anode lead and electrically exposed cathode tab on underside; polarity marked on top surface per device marking diagram.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Current entry point	Soldered to input/high-side node; requires adequate trace width for 20A continuous flow.
Cathode (Tab)	Current exit point & thermal path	Exposed metal pad must be connected to large copper pour or heatsink for thermal dissipation and electrical return.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive power electronics including engine control, lighting, and body modules.
Guard ring structure	Improves edge termination robustness against transient overvoltage without derating V_RRM.
Moisture sensitivity level 1	Eliminates bake requirement prior to reflow; compatible with standard J-STD-020 assembly processes.
Halogen-free & RoHS compliant	Meets IEC 61249-2-21 and EU RoHS Directive for environmentally regulated automotive supply chains.

Applications

Automotive DC/DC Converters	Reverse Battery Protection
Use Scenario: Step-down conversion in 12V/48V hybrid architectures with high switching frequency (>200 kHz). IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck topology, conducting during low-side switch off-time. Use Value: 0.57V V_F minimizes conduction loss and heat generation, improving system efficiency and reducing heatsink size.	Use Scenario: Preventing damage when battery terminals are accidentally reversed during service or jump-start. IC Role / Device Role / Timing Role: Series-blocking diode placed between battery input and main power rail. Use Value: 30V V_RRM and 330A I_FSM withstand reverse connection surges while maintaining low forward drop during normal operation.
Car LED Lighting Drivers	Low-Voltage Inverters
Use Scenario: Constant-current driver for headlamp or DRL modules powered from vehicle battery. IC Role / Device Role / Timing Role: Output rectifier in boost or buck-boost LED driver stage. Use Value: AEC-Q101 qualification ensures reliability over 15-year vehicle lifetime; low V_F reduces thermal stress on LED arrays.	Use Scenario: High-frequency AC generation for small fans, pumps, or auxiliary inverters in EVs. IC Role / Device Role / Timing Role: Output rectifier in full-bridge or push-pull inverter secondary side. Use Value: Fast switching with zero Q_rr eliminates reverse recovery losses, enabling >90% efficiency at 100–500 kHz.

Automotive DC/DC Converters

Reverse Battery Protection

Use Scenario: Step-down conversion in 12V/48V hybrid architectures with high switching frequency (>200 kHz).

IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck topology, conducting during low-side switch off-time.

Use Value: 0.57V V_F minimizes conduction loss and heat generation, improving system efficiency and reducing heatsink size.

Use Scenario: Preventing damage when battery terminals are accidentally reversed during service or jump-start.

IC Role / Device Role / Timing Role: Series-blocking diode placed between battery input and main power rail.

Use Value: 30V V_RRM and 330A I_FSM withstand reverse connection surges while maintaining low forward drop during normal operation.

Car LED Lighting Drivers

Low-Voltage Inverters

Use Scenario: Constant-current driver for headlamp or DRL modules powered from vehicle battery.

IC Role / Device Role / Timing Role: Output rectifier in boost or buck-boost LED driver stage.

Use Value: AEC-Q101 qualification ensures reliability over 15-year vehicle lifetime; low V_F reduces thermal stress on LED arrays.

Use Scenario: High-frequency AC generation for small fans, pumps, or auxiliary inverters in EVs.

IC Role / Device Role / Timing Role: Output rectifier in full-bridge or push-pull inverter secondary side.

Use Value: Fast switching with zero Q_rr eliminates reverse recovery losses, enabling >90% efficiency at 100–500 kHz.

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-20BQ030PBF	Same 30V V_RRM, 20A I_F, TO-263AB; VF = 0.52V @ 20A but not AEC-Q101 qualified.	Not approved for automotive safety-critical modules; suitable for industrial or consumer DC/DC.	Select if AEC-Q101 is not required and lower VF is prioritized.
ON Semiconductor SB2030	30V V_RRM, 20A I_F, TO-263AB; VF = 0.59V @ 20A; AEC-Q101 qualified but I_FSM = 250A (vs. 330A).	Lower surge margin may require external clamping in high-transient environments like alternator load dump.	Select when footprint compatibility is critical and surge events are mitigated elsewhere in design.

Compared with VS-20BQ030PBF and SB2030, the SRAS2030H uniquely combines AEC-Q101 qualification, 330A surge rating, and 0.57V VF in TO-263AB-making it optimal for unclamped automotive power rails where reliability and thermal efficiency are jointly constrained.

Availability

SRAS2030H is available at Aetrix Electronics and suitable for automotive DC/DC converters, reverse battery protection circuits, and car LED lighting drivers requiring stable component supply across extended production lifecycles.

Supply support for SRAS2030H 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 automotive, industrial, and computing markets since 1979.

The SRAS2030H belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in harsh automotive environments.

FAQ

What is the maximum junction temperature rating for the SRAS2030H?

The SRAS2030H has a maximum junction temperature (T_J) of +150°C, verified per absolute maximum ratings table. This allows reliable operation in under-hood automotive applications where ambient temperatures reach +105°C and power dissipation must be managed via the TO-263AB package's exposed cathode tab. Thermal design should maintain T_J ≤ 150°C using R_θJC = 1.5°C/W and appropriate board copper area.

Is the SRAS2030H suitable for reverse battery protection in 12V automotive systems?

Yes, the SRAS2030H is explicitly rated for reverse battery protection applications. Its 30V V_RRM exceeds typical 12V system transients, and its 330A I_FSM handles momentary reverse connection surges. The AEC-Q101 qualification and guard ring structure further ensure robustness in this safety-critical role-confirmed in the official Applications section of the SRAS2020H–SRAS20150H datasheet.

Does the SRAS2030H have a halogen-free and RoHS-compliant construction?

Yes, the SRAS2030H meets both Halogen-Free requirements per IEC 61249-2-21 and RoHS Directive compliance, as stated in the FEATURES section of the datasheet. These material declarations are verified for all units in the SRAS2020H–SRAS20150H family and apply directly to the SRAS2030H variant.

What is the forward voltage drop of the SRAS2030H at rated current and temperature?

The SRAS2030H exhibits a typical forward voltage (V_F) of 0.57 V at I_F = 20 A and T_J = 25°C, per Electrical Specifications table. At higher junction temperatures (e.g., 100°C), V_F decreases slightly due to Schottky diode physics-this value is critical for calculating conduction losses in DC/DC converter designs using the SRAS2030H.

What packaging and moisture sensitivity level does the SRAS2030H use?

The SRAS2030H is supplied in TO-263AB (D2PAK) package on 800-unit tape-and-reel, with moisture sensitivity level (MSL) rated at Level 1 per J-STD-020. This means the device can be stored indefinitely at ≤30°C/85% RH and requires no baking prior to surface-mount reflow, simplifying manufacturing for high-volume automotive PCB assembly.

SRAS2030H 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):: 30 V

Current - Average Rectified (Io):: 20A

Voltage - Forward (Vf) (Max) @ If:: 570 mV @ 20 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 500 µA @ 30 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

SRAS2030H FAQ

1.How can I place an order for SRAS2030H through Aetrix?

Please submit a Request for Quotation (RFQ) for SRAS2030H 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 SRAS2030H reliable?

The price and inventory of SRAS2030H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRAS2030H is usually 5 days.

3.What payment methods are accepted for SRAS2030H?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRAS2030H transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SRAS2030H?

SRAS2030H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SRAS2030H 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 SRAS2030H?

For technical support, including SRAS2030H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRAS2030H requirements.

6.How does Aetrix verify that SRAS2030H is sourced from the original manufacturer or authorized distributors?

All SRAS2030H 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 SRAS2030H meets industry standards.

7.What is the process for return or replacement of SRAS2030H?

All SRAS2030H units undergo pre-shipment inspection (PSI). If there is an issue with SRAS2030H, 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 SRAS2030H part is unused and in its original packaging.

Return procedure for SRAS2030H:

1.Submit a request within 90 days.

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

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