Taiwan Semiconductor Corporation SR810H

Overview

SR810H from Taiwan Semiconductor is an AEC-Q101-qualified 8A, 100V Schottky barrier rectifier in DO-201AD package, featuring 0.92V forward voltage at 8A/25°C, 150A surge capability, and guard ring overvoltage protection-used in automotive-grade DC-DC converters and industrial SMPS.

For engineers reviewing the SR810H datasheet, SR810H pinout, SR810H application, or SR810H equivalent, key selection criteria include its 100V repetitive peak reverse voltage, 125°C maximum junction temperature (with extended 150°C option), low leakage (100µA @ 25°C), and AEC-Q101 qualification for automotive power systems.

Technical Context

This single-die Schottky rectifier operates with a critical dv/dt rating of 10,000 V/µs and exhibits a junction-to-ambient thermal resistance of 40°C/W. Its construction includes pure tin-plated leads compliant with J-STD-002 and meets JESD 201 Class 2 whisker resistance.

The device delivers high efficiency via low forward voltage drop and low power loss, enabled by guard ring structure for transient overvoltage robustness. Reverse leakage remains ≤100 µA at 25°C and ≤5 mA at 125°C under rated VR.

Key Specifications

Pinout & Package

Package: DO-201AD - Axial-leaded, molded plastic case rated UL 94V-0; cathode indicated by band; 1.10 g typical weight; polarity-critical for correct rectifier orientation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SR810H, VS-8EWH10FN-M3/45 offers marginally better conduction efficiency and lower leakage but identical packaging and qualification; SB8100E provides functional equivalence at lower cost but lacks AEC-Q101 validation and has higher reverse leakage, limiting use in automotive or high-reliability designs.

Availability

SR810H is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS, and USB-C PD adapters requiring stable component supply with AEC-Q101 assurance and long-term production continuity.

Supply support for SR810H 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 consumer markets since 1979.

The SR802–SR820 family is designed specifically for high-reliability, high-efficiency rectification in automotive power systems and industrial switch-mode supplies-emphasizing AEC-Q101 compliance, thermal robustness, and low-loss Schottky performance.

FAQ

What is the maximum junction temperature rating for SR810H?

The SR810H has a standard maximum junction temperature of 125°C, with extended operation up to 150°C confirmed in the absolute maximum ratings table. This dual-rating supports deployment in under-hood automotive environments and high-ambient industrial settings where thermal headroom is critical. The SR810H datasheet specifies both limits explicitly under TJ conditions.

Is SR810H pin-compatible with other devices in the SR8xx series?

Yes, all SR8xx devices-including SR810H-share identical DO-201AD package dimensions, axial lead configuration, and cathode-band polarity marking. Mechanical and soldering compatibility is maintained across the series, though electrical parameters like V_RRM and V_F vary by suffix number. No PCB redesign is needed when substituting within the SR8xx family.

Does SR810H require a heatsink in typical 8A operation?

In free-air conditions at 25°C ambient, the SR810H's 40°C/W R_θJA and 0.92V V_F result in ~7.4W dissipation, raising junction temperature by ~296°C-exceeding rating. Therefore, a heatsink or forced airflow is required. Derating curves show usable 8A operation only below ~40°C ambient without heatsinking, confirming thermal management necessity.

What does the "H" suffix signify in SR810H?

The "H" suffix in SR810H denotes AEC-Q101 qualification per the ordering information table. It distinguishes this variant from standard SR810, confirming completion of stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing-required for automotive power semiconductor applications.

How does SR810H's reverse leakage compare to SR805H at 100°C?

At 100°C, SR810H exhibits ≤10 mA reverse leakage (per electrical specifications table), matching SR805H's published value. Both share identical leakage behavior in elevated-temperature operation due to shared process and die design within the SR8xx family, despite differing V_RRM ratings. This consistency simplifies thermal modeling across the series.