Taiwan Semiconductor Corporation SR1030

Overview

SR1030 from Taiwan Semiconductor is a 10A, 30V repetitive peak reverse voltage Schottky barrier rectifier in TO-220AB package, featuring 0.55V forward voltage at 5A/25°C, 120A surge capability, and AEC-Q101 qualification option. It serves as primary output rectifier in high-efficiency DC-DC converters for automotive infotainment power supplies.

For engineers reviewing the SR1030 datasheet, SR1030 pinout, SR1030 application, or SR1030 equivalent, key selection criteria include its 30V V_RRM, low 0.55V V_F at rated current, 120A I_FSM, junction temperature range up to +150°C, and TO-220AB mechanical compatibility with standard heatsink mounting.

Technical Context

This dual-die Schottky rectifier uses guard ring structure for overvoltage protection and meets JESD201 Class 2 whisker resistance. Its 3°C/W junction-to-case thermal resistance enables stable 10A continuous operation with appropriate heatsinking under ambient temperatures up to 85°C.

The device operates with 500µA maximum reverse leakage at 25°C and 10mA at 100°C under rated 30V reverse bias, supporting high-efficiency SMPS designs where low conduction loss and fast recovery are critical for minimizing switching losses.

Key Specifications

Pinout & Package

TO-220AB package with center-tab cathode configuration; matte tin-plated leads compliant with J-STD-002 solderability; polarity marked on device body.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky rectifier applications.

Compared with VS-10BQ030 and SB1030, the SR1030 provides the optimal balance of automotive-grade reliability (AEC-Q101 option), +150°C junction rating, and TO-220AB mechanical compatibility-making it preferred for thermally demanding automotive and industrial power conversion where tab-isolation is unnecessary.

Availability

SR1030 is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS secondary rectification, and USB-C PD adapter output stages requiring stable component supply across production lifecycles.

Supply support for SR1030 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 SR10xx series targets high-reliability power conversion applications requiring low-loss, high-surge Schottky rectifiers with extended temperature capability and automotive qualification options.

FAQ

What is the maximum junction temperature rating for the SR1030?

The SR1030 has a maximum junction temperature rating of +150°C, validated per the absolute maximum ratings table in the L2104 datasheet revision. This rating applies to both standard and AEC-Q101 qualified versions, enabling use in under-hood automotive environments and sealed industrial enclosures where ambient temperatures exceed 85°C. Thermal design must maintain T_J ≤ +150°C using the specified 3°C/W R_θJC.

Is the SR1030 pin-compatible with other devices in the SR10xx family?

Yes, all SR10xx devices-including SR1030-share identical TO-220AB package dimensions, pinout (anode–cathode–NC), and mounting torque specification (0.56 N·m). This allows direct substitution across the 20V–150V voltage range without PCB layout changes, provided thermal and electrical design margins accommodate the specific V_RRM and V_F of the selected variant.

Does the SR1030 have AEC-Q101 qualification?

The SR1030 is available in an AEC-Q101 qualified version denoted by the "H" suffix (e.g., SR1030H). This qualification covers stress testing including temperature cycling, humidity bias, and mechanical shock per AEC-Q101 Rev D. Standard SR1030 parts are not AEC-Q101 certified; designers requiring automotive qualification must specify the "H" variant explicitly.

What is the forward voltage drop of the SR1030 at 10A?

The SR1030 datasheet specifies forward voltage only at 5A (0.55V typ. @ 25°C); extrapolation to 10A is not provided. Measured data shows V_F ≈ 0.62V at 10A/25°C and ≈ 0.70V at 10A/100°C. These values reflect real-world conduction loss for thermal modeling-designers should use the 5A test condition for datasheet-compliant validation and derate linearly for higher currents.

How does the SR1030's reverse leakage compare to silicon fast recovery diodes?

The SR1030 exhibits 500µA maximum reverse leakage at 30V and 25°C-significantly higher than silicon fast recovery diodes (<1µA) but typical for Schottky devices. However, its leakage remains well below competing Schottkys in the same voltage class (e.g., SB1030: 1000µA), and its 10mA leakage at 100°C is optimized for high-temperature efficiency trade-offs in regulated DC-DC outputs.