Taiwan Semiconductor Corporation TS10K40-A

Overview

TS10K40-A from Taiwan Semiconductor is a 10A, 400V standard quad bridge rectifier in TS4K package, featuring glass-passivated junctions, 150A surge capability, and UL recognition (E-326243). It delivers low forward voltage (1.0V max @ 5A, 25°C) and operates up to 150°C junction temperature, enabling robust AC/DC conversion in compact SMPS designs.

For engineers reviewing the TS10K40-A datasheet, TS10K40-A pinout, TS10K40-A application, or TS10K40-A equivalent, key selection factors include its 400V repetitive peak reverse voltage, 6°C/W junction-to-lead thermal resistance, RoHS/halogen-free compliance, and TS4K mechanical footprint compatibility with PCB-mount power supplies.

Technical Context

The TS10K40-A integrates four silicon diodes in a single-phase full-wave bridge configuration, optimized for high-efficiency AC-to-DC rectification. Its glass-passivated chip junction ensures stable reverse leakage (≤10 µA @ 25°C) and reliable operation under thermal cycling.

Thermal performance is defined with R_θJL = 6°C/W and R_θJC = 5°C/W when mounted on a 2"×3"×0.25" aluminum heatsink, supporting continuous 10A conduction without derating below 75°C case temperature.

Key Specifications

Pinout & Package

Package: TS4K - molded plastic quad bridge housing with matte tin-plated leads, UL 94V-0 rated compound, 4.10 g weight, and polarity marking per device top-side legend.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU1004 and GBU10K, the TS10K40-A offers superior thermal efficiency (RθJL = 6°C/W vs. ≥12°C/W), smaller TS4K footprint, and tighter reverse leakage-making it preferred for high-density, thermally demanding 400V bridge applications.

Availability

TS10K40-A is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and LED lighting drivers requiring stable component supply, consistent parametric performance, and long-term manufacturability.

Supply support for TS10K40-A 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 power electronics markets since 1979.

The TS10Kx-A series targets cost-sensitive, high-volume AC/DC front-end applications-designed specifically for reliability, thermal efficiency, and regulatory compliance in commercial and industrial power conversion.

FAQ

What is the maximum operating temperature for TS10K40-A?

The TS10K40-A has a maximum junction temperature (T_J) of +150°C and a storage temperature range of –55°C to +150°C. Its R_θJL of 6°C/W allows sustained 10A operation with case temperatures up to 90°C when properly heatsunk-verified per thermal curves in the D2103 datasheet revision.

Is TS10K40-A RoHS and halogen-free compliant?

Yes, TS10K40-A is RoHS compliant and halogen-free per IEC 61249-2-21. The TS4K molding compound contains no brominated flame retardants or chlorine-based additives, and all terminals use matte tin plating meeting J-STD-002 solderability requirements.

What does the "-A" suffix indicate in TS10K40-A?

The "-A" suffix in TS10K40-A denotes the standard version with UL Recognition File #E-326243, RoHS/halogen-free compliance, and TS4K packaging. It distinguishes this qualified variant from non-UL or non-compliant versions that may share the base part number but lack these certifications.

Can TS10K40-A replace older bridge rectifiers like KBPC1004?

TS10K40-A can functionally replace KBPC1004 in 400V, 10A applications, but requires PCB layout adaptation due to different package (TS4K vs. KBPC). Its lower R_θJL (6°C/W vs. ~10°C/W) and tighter IR spec improve thermal margin and reliability-confirm pin alignment and creepage/clearance in new designs.

What is the surge current rating of TS10K40-A and how is it tested?

TS10K40-A has an IFSM rating of 150A for an 8.3 ms single half-sine surge, tested per JEDEC JESD22-A112. This rating applies to non-repetitive events such as AC line turn-on or lightning-induced transients-validated with fusing I²t = 93 A²s, ensuring survivability without bond wire failure.