Taiwan Semiconductor Corporation SR1650

Overview

SR1650 from Taiwan Semiconductor is a 16A, 50V repetitive peak reverse voltage Schottky barrier rectifier in TO-220AB package, featuring dual-die construction, 0.70V typical forward voltage at 8A/25°C, 170A surge capability, and AEC-Q101 qualification option (SR1650H). It serves as primary output rectifier in high-efficiency DC-DC converters.

For engineers reviewing the SR1650 datasheet, SR1650 pinout, SR1650 application, or SR1650 equivalent, key selection criteria include its 50V V_RRM, 10mA reverse leakage at 100°C, 2.5°C/W junction-to-case thermal resistance, and compatibility with high-frequency switching topologies requiring low conduction loss.

Technical Context

This Schottky rectifier uses dual-die parallel configuration to achieve 16A average forward current rating while maintaining low VF and high dv/dt immunity (10,000 V/μs). Its guard ring structure provides overvoltage protection without compromising soft recovery behavior.

The device operates across -55°C to +150°C junction temperature range and delivers stable performance under pulsed load conditions, supported by transient thermal impedance data down to 0.1s pulse duration and validated 100% JESD201 Class 2 whisker resistance.

Key Specifications

Pinout & Package

TO-220AB package with isolated tab (Case = Cathode), 3-terminal configuration: Anode 1, Cathode (Tab), Anode 2. Mounting torque ≤0.56 N·m; matte tin-plated leads compliant with J-STD-002 solderability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-16CTH05-M3 and MBR1650CT, the SR1650 offers superior thermal performance (2.5°C/W), dual-die robustness, and AEC-Q101 qualification path-making it optimal for space-constrained, high-reliability, or automotive-grade designs where isolation and surge resilience are critical.

Availability

SR1650 is available at Aetrix Electronics and suitable for server VRMs, industrial DC-DC converters, and automotive body control modules requiring stable component supply and long-lifecycle support.

Supply support for SR1650 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, specializing in power rectifiers, TVS diodes, and MOSFETs since 1979.

The SR16xx family was designed specifically for high-efficiency, high-reliability secondary-side rectification in switching power supplies-emphasizing low VF, high surge tolerance, and automotive-grade process validation.

FAQ

What is the maximum junction temperature rating for the SR1650?

The SR1650 has a maximum junction temperature (T_J) rating of +150°C, validated across its full operating range from -55°C to +150°C. This rating applies to all variants including standard and AEC-Q101-qualified SR1650H. The SR1650's thermal design leverages its 2.5°C/W R_θJC to maintain safe junction temperatures under sustained 16A load when mounted on an adequately sized heatsink.

Does the SR1650 have a center-tap configuration or dual-anode/single-cathode topology?

The SR1650 uses a dual-anode, common-cathode (TO-220AB) configuration-Anode 1 and Anode 2 are electrically separate inputs, while the metal tab serves as the shared cathode output. This topology enables independent connection to split-winding transformers or interleaved phases, and is distinct from center-tapped rectifiers which require three secondary terminals.

Is the SR1650 RoHS and halogen-free compliant?

Yes, the SR1650 is RoHS compliant and halogen-free in accordance with IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and matte tin-plated leads satisfy J-STD-002 solderability requirements. These compliance attributes are confirmed in TSC's official documentation for the SR16xx family (Version J2104).

What is the reverse leakage current specification for the SR1650 at elevated temperature?

At rated 50V reverse voltage and 100°C junction temperature, the SR1650 exhibits a maximum reverse leakage current (I_R) of 10 µA per diode. At 25°C and 50V, leakage is ≤500 µA. These values are measured under standardized pulse conditions (30ms PW) and reflect the device's stable performance in thermally demanding applications like enclosed industrial power supplies.

Can the SR1650 replace the SR1640 or SR1660 in an existing design?

The SR1650 is not a direct replacement for SR1640 (40V V_RRM) or SR1660 (60V V_RRM) due to voltage rating mismatch. Substitution requires verification that operating reverse voltage remains within ±10% of 50V and that forward voltage increase (0.70V vs. 0.55V for SR1640) does not exceed thermal budget. No PCB changes are needed if TO-220AB footprint and polarity marking align.