Taiwan Semiconductor Corporation SR1650PT

Overview

SR1650PT from Taiwan Semiconductor is a 16A, 50V repetitive peak reverse voltage Schottky barrier rectifier in TO-247AD (TO-3P) package, featuring 0.70V forward voltage at 8A/25°C, 200A surge capability, and junction temperature rating up to +150°C. It serves as a high-efficiency output rectifier in DC–DC converters and switching power supplies where low conduction loss and thermal robustness are critical.

For engineers reviewing the SR1650PT datasheet, SR1650PT pinout, SR1650PT application, or SR1650PT equivalent, key selection factors include its 50V V_RRM, dual-die construction, 3°C/W junction-to-case thermal resistance, AEC-Q101 qualification option (SR1650PTH), and UL recognition (E-326243).

Technical Context

This Schottky rectifier uses dual silicon dies in a single TO-247AD package to deliver rated 16A average forward current with low VF and high I_FSM. Its guard ring structure provides overvoltage protection, and matte tin-plated leads meet J-STD-002 solderability standards.

Thermal performance is defined by R_θJC = 3°C/W, enabling reliable operation at T_J up to +150°C. Reverse leakage is limited to 500 µA at 25°C and 10 mA at 100°C under rated V_R, supporting stable performance in high-temperature SMPS environments.

Key Specifications

Pinout & Package

Package: TO-247AD (TO-3P) - Isolated tab, 3-terminal through-hole package with center anode/cathode configuration and mechanical mounting hole; meets UL 94V-0 flammability rating and JESD201 Class 2 whisker resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-16CTH05-M3 and MUR1650CT, SR1650PT offers lower thermal resistance, lower forward voltage, and optional AEC-Q101 qualification-critical for space-constrained, high-reliability, or automotive-adjacent power conversion.

Availability

SR1650PT is available at Aetrix Electronics and suitable for switching mode power supplies, DC–DC converters, and TV/monitor power systems requiring stable component supply, long-term manufacturability, and RoHS-compliant sourcing.

Supply support for SR1650PT 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 industrial, computing, and consumer markets since 1979.

The SR16xxPT series targets high-current, high-reliability Schottky rectification in compact power supplies, emphasizing thermal performance, surge robustness, and qualification-ready variants for automotive and medical-adjacent applications.

FAQ

What is the maximum junction temperature rating for SR1650PT?

The SR1650PT has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table in the official TSC datasheet (Version J2103). This allows operation in thermally demanding environments such as enclosed power adapters or high-density DC–DC modules. The SR1650PT maintains specified electrical parameters up to this limit when thermal design respects R_θJC = 3°C/W and proper heatsinking is applied.

Is SR1650PT pin-compatible with other parts in the SR16xxPT family?

Yes, all SR16xxPT devices-including SR1650PT-share identical TO-247AD (TO-3P) mechanical outline, pin assignment, and terminal configuration. The only differences are V_RRM (20V to 150V) and corresponding forward voltage/reverse leakage values. This enables direct voltage-scaling substitutions within the same PCB layout, provided thermal and surge margins remain acceptable for the new rating.

Does SR1650PT have AEC-Q101 qualification?

The base SR1650PT is not AEC-Q101 qualified, but the variant SR1650PTH is explicitly listed as AEC-Q101 qualified in TSC's ordering information and features section. SR1650PTH retains identical electrical and thermal specifications while adding automotive-grade stress testing compliance. For automotive applications, specify SR1650PTH-not SR1650PT-to ensure qualification coverage.

What is the forward voltage of SR1650PT at 16A and 100°C junction temperature?

The datasheet specifies V_F = 0.70V typ. at I_F = 8A and T_J = 25°C. At 16A and 100°C, V_F increases due to positive temperature coefficient and current scaling; extrapolation using typical Schottky characteristics yields ~0.82–0.86V. For precise design, refer to Figure 4 (Typical Forward Characteristics) in the SR1620PT–SR16150PT datasheet, which shows V_F vs. I_F curves at multiple T_J points including 100°C.

How does the guard ring in SR1650PT improve reliability?

The guard ring in SR1650PT is a diffusion-based structural feature surrounding the active junction that controls electric field distribution during reverse bias. It prevents premature edge breakdown under transient overvoltage conditions-such as line surges or inductive kickback-thereby increasing the device's ruggedness without requiring external snubber networks. This directly enhances long-term reliability in unregulated or marginally filtered SMPS inputs.