Taiwan Semiconductor Corporation SRA1660 C0G

Overview

SRA1660 from Taiwan Semiconductor is a 16A, 60V Schottky barrier rectifier in TO-220AC package, designed for high-efficiency DC/DC conversion with VF = 0.70 V at 16 A and IR ≤ 500 µA at 25°C, used in automotive-grade power supplies requiring AEC-Q101 qualification.

For engineers reviewing the SRA1660 datasheet, SRA1660 pinout, SRA1660 application, or SRA1660 equivalent, key selection criteria include repetitive peak reverse voltage (60 V), forward surge current rating (200 A), junction-to-case thermal resistance (5 °C/W), operating junction temperature range (–55 to +150 °C), and RoHS/halogen-free compliance.

Technical Context

This single-die Schottky rectifier uses guard ring technology for overvoltage protection and supports high-surge operation with 8.3 ms half-sine wave IFSM = 200 A. Its low VF minimizes conduction loss in high-frequency switching topologies.

Thermal performance is defined by R_θJC = 5 °C/W and TJ max = +150 °C, enabling stable operation under forced-air or heatsink-mounted conditions in compact power converters.

Key Specifications

Pinout & Package

Package: TO-220AC - Three-terminal, through-hole molded plastic package with isolated tab; matte tin-plated leads compliant with J-STD-002 solderability; mounting torque ≤ 0.56 N·m; UL 94V-0 rated molding compound.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-16CTQ060, SRA1660 offers halogen-free and AEC-Q101-compliant variants (SRA1660H), while MUR1660CT is a fundamentally different ultrafast silicon diode with incompatible voltage/current/switching characteristics - neither serves as a drop-in replacement.

Availability

SRA1660 is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS, and USB-C PD adapters requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for SRA1660 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 devices, rectifiers, and protection components since 1992.

The SRA16xx series belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered for high-reliability power conversion in automotive, industrial, and computing applications where low VF, high surge tolerance, and thermal robustness are critical.

FAQ

What is the maximum junction temperature rating for SRA1660?

The SRA1660 has a maximum junction temperature (TJ max) of +150 °C, validated per its AEC-Q101 qualification scope. This allows continuous operation in under-hood automotive environments and high-ambient industrial settings. Derating curves in the datasheet specify reduced IF above +100 °C case temperature. The SRA1660 maintains reliability up to this limit when mounted with appropriate thermal interface and heatsinking.

Is SRA1660 pin-compatible with other TO-220AC Schottky rectifiers?

Yes, the SRA1660 uses the industry-standard TO-220AC outline with Anode–Cathode–Tab pinout (Lead 1–2–3), matching mechanical and electrical footprint of all TO-220AC Schottky rectifiers. However, thermal and electrical performance differs - always verify VF, IR, and R_θJC before substitution. The SRA1660 specifically delivers 0.70 V VF at 16 A and 5 °C/W thermal resistance.

Does SRA1660 meet automotive qualification standards?

The SRA1660H variant is fully AEC-Q101 qualified, tested for temperature cycling, humidity, mechanical shock, and ESD per automotive stress requirements. Standard SRA1660 is commercial-grade; only SRA1660H carries the "H" suffix and qualification documentation. For automotive designs, specify SRA1660H to ensure compliance - the SRA1660 itself is not qualified.

What is the reverse leakage current specification for SRA1660 at elevated temperature?

At TJ = 100 °C and rated VR = 60 V, the SRA1660 exhibits IR ≤ 10 mA (typical <5 mA). This is significantly higher than its 25 °C value (≤500 µA) but remains within safe limits for most SMPS feedback and bias networks. The SRA1660's leakage behavior is documented in Figure 3 of the datasheet and aligns with Schottky physics under thermal stress.

How does the guard ring feature improve SRA1660 reliability?

The guard ring in the SRA1660 mitigates edge electric field crowding, preventing premature avalanche breakdown during voltage transients. This extends reverse voltage margin beyond VRRM and improves robustness against load dump or inductive kick events. In real-world use, this means the SRA1660 sustains 60 V blocking with higher immunity than non-guarded equivalents - a key factor in automotive and industrial power systems where SRA1660 is deployed.