Taiwan Semiconductor Corporation SRAF1640 C0G

Overview

SRAF1640 C0G from Taiwan Semiconductor is a 16A, 40V repetitive peak reverse voltage Schottky barrier rectifier in ITO-220AC package, featuring 0.55V forward voltage at 16A/25°C, 275A surge current capability, and AEC-Q101 qualification option (SRAF1640H). It serves as primary output rectifier in high-efficiency DC-DC converters.

For engineers reviewing the SRAF1640 C0G datasheet, SRAF1640 C0G pinout, SRAF1640 C0G application, or SRAF1640 C0G equivalent, key selection criteria include V_RRM=40V, I_F=16A, V_F≤0.55V, I_FSM=275A, and thermal resistance R_θJC=4°C/W - all critical for SMPS thermal design and efficiency validation.

Technical Context

This single-die Schottky rectifier uses guard ring technology to enhance over-voltage ruggedness and supports operation up to 150°C junction temperature. Its low V_F and high I_FSM enable high-power-density switching supplies with minimal conduction loss.

The ITO-220AC package provides direct case-to-heatsink thermal path with 4°C/W junction-to-case resistance, and matte tin-plated leads ensure reliable solderability per J-STD-002. Polarity is marked on the device body per standard orientation.

Key Specifications

Pinout & Package

ITO-220AC package: 3-terminal through-hole outline with isolated tab (cathode), anode lead, and cathode lead - tab electrically connected to cathode. Mounting torque ≤0.56 N·m. Weight ≈1.70 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-16CTH04-M3 and MBR1645G, the SRAF1640 C0G delivers optimal balance of low V_F, AEC-Q101 availability, and industry-standard ITO-220AC mechanical compatibility - making it preferred for cost-sensitive automotive and industrial 40V rectification where thermal resistance and qualification coexist.

Availability

SRAF1640 C0G is available at Aetrix Electronics and suitable for server power supplies, automotive DC-DC converters, and industrial PLC power modules requiring stable component supply and long-lifecycle assurance.

Supply support for SRAF1640 C0G 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 SRAF16xx series targets high-efficiency, high-reliability power conversion in automotive, industrial, and computing applications - designed specifically to replace older silicon rectifiers with lower-loss Schottky alternatives while meeting stringent qualification and safety standards.

FAQ

What is the maximum junction temperature rating for the SRAF1640 C0G?

The SRAF1640 C0G has a maximum junction temperature of +150°C, enabling operation in demanding environments such as automotive under-hood locations and industrial enclosures with elevated ambient temperatures. This rating is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version J2105), and applies to both standard and AEC-Q101-qualified variants of the SRAF1640 C0G.

Does the SRAF1640 C0G have AEC-Q101 qualification?

Yes, the AEC-Q101-qualified version is designated SRAF1640H - the "H" suffix indicates full qualification per AEC-Q101 stress test requirements for discrete semiconductors. The base SRAF1640 C0G part is not automatically qualified; only SRAF1640H carries the certification. Both share identical electrical and thermal specifications, but SRAF1640H undergoes additional temperature cycling, humidity bias, and ESD testing per automotive standards.

What is the forward voltage of the SRAF1640 C0G at rated current?

The SRAF1640 C0G exhibits a typical forward voltage of 0.55 V at 16 A and 25°C junction temperature, as specified in the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents the conduction loss baseline used for efficiency calculations in high-frequency DC-DC designs. At 100°C, V_F increases to approximately 0.48 V due to negative temperature coefficient behavior typical of Schottky diodes.

Which package does the SRAF1640 C0G use, and what are its mounting requirements?

The SRAF1640 C0G uses the ITO-220AC package - a 3-terminal through-hole outline with electrically isolated metal tab (cathode). Mounting torque must not exceed 0.56 N·m to prevent die fracture or lead deformation. The tab must be thermally coupled to a heatsink using electrically isolating thermal interface material, and polarity is marked on the device body per standard orientation.

How does the SRAF1640 C0G compare to the SRAF1650 in terms of reverse voltage and leakage?

The SRAF1640 C0G is rated for 40 V V_RRM, while the SRAF1650 is rated for 50 V. At 25°C and rated VR, both exhibit ≤500 µA reverse leakage. However, at 100°C, SRAF1640 C0G leakage rises to 15 mA versus 10 mA for SRAF1650 - indicating tighter process control for higher-voltage variants. This difference affects light-load efficiency in high-temperature applications, where SRAF1650 may offer marginal advantage despite higher V_F.