Taiwan Semiconductor Corporation SRF1660

Overview

SRF1660 from Taiwan Semiconductor is a 16A, 60V AEC-Q101-qualified Schottky barrier rectifier in ITO-220AB package with dual-die configuration, 200A surge capability, 0.70V max forward voltage at 8A/25°C, and 500µA max reverse leakage at rated VR/25°C. It serves as primary output rectifier in high-efficiency DC-DC converters.

For engineers reviewing the SRF1660 datasheet, SRF1660 pinout, SRF1660 application, or SRF1660 equivalent, key selection criteria include junction-to-case thermal resistance (2.5°C/W), TJ max rating (125°C), guard ring overvoltage protection, UL recognition (E-326243), and halogen-free compliance per IEC 61249-2-21.

Technical Context

The SRF1660 implements a dual-die Schottky structure optimized for low conduction loss in continuous forward conduction mode, with guard ring design enhancing transient overvoltage robustness. Its ITO-220AB package enables direct heatsink mounting via screw torque ≤0.56 N·m and supports 16A average forward current derating to zero at 125°C ambient.

Electrical behavior is characterized by 0.70V max VF at 8A/25°C and 10mA max IR at 60V/100°C - parameters validated under standardized pulse conditions (PW = 0.3ms for VF, PW = 30ms for IR). Thermal performance is defined by R_θJC = 2.5°C/W, enabling predictable junction temperature estimation in thermally constrained layouts.

Key Specifications

Pinout & Package

Package: ITO-220AB - insulated TO-220 variant with isolated tab, UL 94V-0 molding compound, matte tin-plated leads compliant with J-STD-002 solderability, 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-16CTQ060 and MBR1660CT, the SRF1660 delivers superior thermal resistance (2.5°C/W), certified automotive reliability, and integrated overvoltage protection - making it the preferred choice when junction temperature control, safety certification, or system-level surge resilience are design-critical.

Availability

SRF1660 is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS outputs, and USB-C PD adapters requiring stable component supply across multi-year production cycles.

Supply support for SRF1660 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 devices, and MOSFETs for industrial and automotive markets.

The SRF16xx series was designed specifically for high-efficiency, high-reliability output rectification in next-generation switching power supplies - emphasizing low VF, robust surge handling, and AEC-Q101 compliance for under-hood and chassis-mounted applications.

FAQ

What is the maximum junction temperature rating for the SRF1660?

The SRF1660 has a maximum junction temperature (TJ max) rating of +125°C. This value is specified in the Absolute Maximum Ratings table and applies to all variants in the SRF1620–SRF16150 family with 125°C TJ max. Operation beyond this limit risks irreversible degradation of the Schottky junction and reduced long-term reliability. Thermal design must ensure that actual junction temperature remains below 125°C under worst-case load and ambient conditions.

Does the SRF1660 have AEC-Q101 qualification?

Yes, the SRF1660 is AEC-Q101 qualified when ordered with the "H" suffix (e.g., SRF1660H). The base part number SRF1660 corresponds to the standard industrial version; qualification status is explicitly tied to the ordering code per TSC's documentation. AEC-Q101 validation covers stress tests including HTGB, HTRB, and temperature cycling - confirming suitability for automotive power electronics where reliability under thermal and mechanical stress is mandatory.

What is the forward voltage specification for the SRF1660 at 8A and 25°C?

The SRF1660 has a maximum forward voltage (VF) of 0.70 V at 8A and 25°C, measured under pulsed conditions (PW = 0.3ms). This parameter is confirmed in the Electrical Specifications table and reflects worst-case conduction loss under nominal operating conditions. Typical VF is lower, but design margins must use the 0.70 V max value to ensure thermal and efficiency targets are met across process and temperature variation.

How is the SRF1660 packaged and what are its mounting requirements?

The SRF1660 is supplied in the ITO-220AB package - an insulated variant of TO-220 with electrically isolated metal tab. Mounting requires a maximum torque of 0.56 N·m on the securing screw, and the device uses matte tin-plated leads compliant with J-STD-002. Polarity is marked on the body, and the compound meets UL 94V-0 flammability rating. This package enables direct heatsink attachment while maintaining electrical isolation between circuit and thermal plane.

What is the reverse leakage current of the SRF1660 at 60V and 100°C?

The SRF1660 exhibits a maximum reverse leakage current (IR) of 10 mA at 60V and 100°C, as specified in the Electrical Specifications table. This value is measured using a 30ms pulse test and represents worst-case leakage under elevated temperature - critical for estimating standby power loss and ensuring stable bias in high-temperature environments such as automotive under-hood applications.