Taiwan Semiconductor Corporation TS6K40

Overview

TS6K40 from Taiwan Semiconductor is a 6A, 400V standard quad bridge rectifier in TS4K package, featuring 150A surge capability, <1.1V forward voltage at 6A, and <5μA reverse leakage at 25°C - deployed in AC/DC front-ends of compact switching mode power supplies.

For engineers reviewing the TS6K40 datasheet, TS6K40 pinout, TS6K40 application, or TS6K40 equivalent, key selection criteria include repetitive peak reverse voltage (400V), thermal resistance (3°C/W), AEC-Q101 qualification option, UL recognition (E-326243), and TS4K mechanical compatibility with PCB-mount designs.

Technical Context

The TS6K40 integrates four silicon diodes in a single-phase full-wave bridge configuration, rated for continuous 6A average forward current and 150A non-repetitive surge (8.3ms half-sine). Its junction-to-case thermal resistance of 3°C/W enables direct heatsink mounting without thermal interface material in moderate-power SMPS designs.

Designed for high-reliability industrial and consumer applications, the device meets UL 94V-0 flammability, JESD201 Class 2 whisker resistance, and RoHS/halogen-free compliance (IEC 61249-2-21). Polarity is marked on the case, and terminals are matte tin-plated per J-STD-002 solderability standards.

Key Specifications

Pinout & Package

Package: TS4K - molded plastic case with 4 external leads (AC1, AC2, +, –), UL 94V-0 rated, 4.00g weight, 8.17 in-lbs max mounting torque.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU6K and GBU6J, the TS6K40 offers optimal balance of compact TS4K footprint, 3°C/W thermal resistance, and precise 400V rating - reducing board area and heatsink dependency while matching typical 230VAC system requirements.

Availability

TS6K40 is available at Aetrix Electronics and suitable for switching mode power supplies, AC/DC adapters, and flat-panel TV power stages requiring stable component supply and long-term industrial availability.

Supply support for TS6K40 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 industrial, computing, and consumer markets since 1979.

The TS6K series targets high-reliability AC/DC front-end rectification, emphasizing surge robustness, thermal efficiency, and regulatory compliance (UL, AEC-Q101, RoHS) for space- and efficiency-critical power designs.

FAQ

What is the maximum junction temperature rating for TS6K40?

The TS6K40 has a maximum junction temperature (TJ max) of +150°C, allowing operation in sealed or high-ambient environments when derated per the forward current derating curve. This rating supports reliable use in TV power boards and industrial adapters where internal temperatures may exceed 85°C ambient. The TS6K40 maintains specified electrical parameters up to this limit when thermal design respects the 3°C/W junction-to-case resistance.

Does TS6K40 meet automotive qualification standards?

The base TS6K40 is not AEC-Q101 qualified, but the TS6K40H variant - indicated by the "H" suffix in the ordering code - is fully AEC-Q101 certified. This version undergoes stress testing for temperature cycling, humidity, and high-temperature operating life, making it suitable for automotive infotainment and body control modules. Always verify the "H" suffix on the reel label or datasheet revision F2101 to confirm qualification status for TS6K40.

What is the forward voltage drop of TS6K40 at full rated current?

At 6A average forward current and 25°C junction temperature, the TS6K40 exhibits a maximum forward voltage drop of 1.1V per diode - resulting in ~2.2V total conduction loss across the bridge. This value is measured under pulsed conditions (PW = 0.3ms) and remains stable up to 125°C, enabling accurate thermal modeling in SMPS designs. The TS6K40's VF directly impacts conduction losses and efficiency in high-density adapters.

Is TS6K40 compatible with lead-free reflow soldering processes?

Yes, the TS6K40 features matte tin-plated leads qualified to J-STD-002 for solderability, supporting standard lead-free reflow profiles (peak 260°C, 60s max). Its TS4K package is rated for UL 94V-0 and withstands multiple reflow cycles without delamination or plating degradation. The device's 150°C maximum junction temperature also ensures survivability during typical Pb-free thermal excursions.

How does the TS6K40 compare to the TS6K60 in terms of physical packaging and pinout?

The TS6K40 and TS6K60 share identical TS4K packaging, pinout (AC1, AC2, +, –), mechanical dimensions, and marking layout - differing only in VRRM rating (400V vs. 600V) and associated electrical test limits. Both use the same mold compound, terminal plating, and thermal performance (RθJC = 3°C/W). This allows direct substitution in existing layouts when higher voltage margin is needed, provided the 600V rating aligns with system requirements.