Taiwan Semiconductor Corporation SR1630PT

Overview

SR1630PT from Taiwan Semiconductor is a 16A, 30V AEC-Q101-qualified Schottky barrier rectifier in TO-247AD (TO-3P) package, featuring 0.55V forward voltage at 8A/25°C, 200A surge capability, and junction-to-case thermal resistance of 3°C/W - deployed in automotive-grade DC-DC converters and industrial SMPS.

For engineers reviewing the SR1630PT datasheet, SR1630PT pinout, SR1630PT application, or SR1630PT equivalent, key selection criteria include its 30V VRRM rating, dual-die configuration, AEC-Q101 qualification status, UL recognition (E-326243), and compatibility with high-efficiency, high-surge power conversion designs requiring RoHS- and halogen-free compliance.

Technical Context

This Schottky rectifier uses dual-die construction in a single TO-247AD package to deliver 16A continuous forward current with low conduction loss. Its 30V repetitive peak reverse voltage and 200A non-repetitive surge rating support robust operation in switching-mode topologies under transient stress.

The device operates across –55°C to +150°C junction temperature range, with thermal performance anchored by 3°C/W R_θJC, enabling direct heatsink mounting for high-power density designs. Reverse leakage remains ≤500µA at 25°C and ≤15mA at 100°C, ensuring stable blocking behavior in elevated ambient conditions.

Key Specifications

Pinout & Package

Package: TO-247AD (TO-3P), 3-terminal through-hole package with isolated case (non-conductive tab), matte tin-plated leads, UL 94V-0 molding compound, and 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-16CTH03-M3 and MUR1630CTG, the SR1630PT uniquely combines AEC-Q101 qualification, 0.55V VF, TO-247AD thermal performance, and dual-die reliability-making it the preferred choice for automotive and high-reliability industrial rectification where qualification, efficiency, and thermal management are jointly critical.

Availability

SR1630PT is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS, and consumer adapters requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for SR1630PT 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 SR1630PT belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-efficiency, high-surge power conversion in harsh-environment applications such as automotive infotainment and under-hood ECUs.

FAQ

What is the maximum junction temperature rating for the SR1630PT?

The SR1630PT has a maximum junction temperature (T_J) of +150°C, validated per its AEC-Q101 qualification. This rating enables reliable operation in under-hood automotive environments and high-ambient industrial settings. Derating curves in the official datasheet define allowable forward current versus case temperature, and the device must be mounted to a heatsink capable of maintaining T_J ≤ 150°C under worst-case load and ambient conditions. The SR1630PT achieves this with a low 3°C/W R_θJC.

Is the SR1630PT pin-compatible with other parts in the SR16xPT series?

Yes - all SR16xPT devices, including SR1630PT, share identical TO-247AD (TO-3P) mechanical outline, pin assignment (Anode–Cathode–Isolated Tab), and terminal plating. Voltage variants (e.g., SR1640PT, SR1650PT) differ only in V_RRM and forward voltage characteristics, not physical layout or mounting. Therefore, SR1630PT can be substituted within the same family for design flexibility, provided circuit-level voltage and thermal margins are verified. The SR1630PT marking code is laser-etched on the device body per standard TSC practice.

Does the SR1630PT require a heatsink in typical 16A operation?

Yes - the SR1630PT must be mounted to an external heatsink in all continuous 16A applications. With a 3°C/W junction-to-case thermal resistance and 0.55V forward drop generating ~8.8W of conduction loss at 16A, even modest ambient temperatures exceed safe junction limits without thermal management. The TO-247AD tab is electrically isolated but thermally conductive; recommended mounting torque is ≤1.13 N·m. Thermal simulation using the transient impedance curve (Fig.6) is advised for pulsed-load scenarios. The SR1630PT datasheet provides derating guidance based on case temperature.

What does the "PT" suffix indicate in SR1630PT?

The "PT" suffix in SR1630PT denotes Taiwan Semiconductor's standard packaging and qualification level: TO-247AD (TO-3P) package, matte tin-plated leads, RoHS-compliant, halogen-free molding compound, and UL Recognition File #E-326243. It distinguishes this variant from "PTH", which indicates AEC-Q101 qualification. The SR1630PT is *not* AEC-Q101 qualified - that status applies only to parts marked "SR1630PTH". This distinction is critical for automotive design-in; the SR1630PT remains suitable for industrial and commercial applications requiring high reliability but not formal automotive qualification.

How does the guard ring feature improve reliability in the SR1630PT?

The guard ring in the SR1630PT is a diffusion-based structural enhancement surrounding the active Schottky junction. It mitigates edge-related electric field crowding during high-voltage transients, preventing premature avalanche breakdown at the periphery. This significantly improves ruggedness against repetitive overvoltage events (e.g., load dump in automotive systems) and enhances long-term reliability under high dv/dt switching conditions. Test data confirms the SR1630PT maintains stable V_RRM and low leakage after 1000+ surge cycles - a benefit directly attributable to the guard ring. The SR1630PT leverages this feature without compromising forward conduction performance.