Taiwan Semiconductor Corporation S15JCHM6G

Overview

S15JCHM6G from Taiwan Semiconductor is a 15A, 600V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass-passivated junction, 1.1V max forward voltage at 15A, 350A peak surge capability, and J-STD-020 Level 1 moisture sensitivity-used in freewheeling paths and switching-mode power supplies for telecom and computing systems.

For engineers reviewing the S15JCHM6G datasheet, S15JCHM6G pinout, S15JCHM6G application, or S15JCHM6G equivalent, key selection criteria include V_RRM = 600V, I_F = 15A continuous, R_θJL = 8°C/W thermal resistance, cathode-band polarity marking, and RoHS/halogen-free compliance per IEC 61249-2-21.

Technical Context

This single-die standard recovery rectifier operates with a maximum junction temperature of 150°C and supports repetitive reverse voltages up to 600V (V_RRM). Its low forward voltage drop (≤1.1V @ 15A, 25°C) reduces conduction losses in high-current DC-DC stages.

Thermal performance is defined by R_θJL = 8°C/W and R_θJA = 44°C/W, enabling reliable operation under forced-air or PCB copper heatsinking. Reverse leakage remains ≤1µA at 25°C and ≤250µA at 125°C under rated VR.

Key Specifications

Pinout & Package

Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, cathode indicated by band, UL 94V-0 molding compound, weight ≈0.270 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH1506D and VS-15EWH06FN-M3, S15JCHM6G offers optimal balance of low V_F, industry-standard SMC packaging, and MSL Level 1 process compatibility-making it ideal for cost-sensitive, high-volume telecom and server power designs where layout reuse and assembly yield are critical.

Availability

S15JCHM6G is available at Aetrix Electronics and suitable for telecom power supplies, server VRMs, and industrial motor drives requiring stable component supply, full traceability, and long-term production continuity.

Supply support for S15JCHM6G 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 industrial, computing, and telecom markets since 1979.

The S15GC–S15MC series was designed specifically for high-current, surface-mount rectification in space-constrained AC/DC and DC/DC converters-emphasizing thermal robustness, assembly compatibility, and reliability under sustained load.

FAQ

What is the maximum junction temperature rating for S15JCHM6G?

The S15JCHM6G has a maximum junction temperature (T_J) of +150°C, with a storage temperature range of –55°C to +150°C. This rating allows operation in high-ambient environments such as enclosed telecom chassis or industrial control cabinets without mandatory derating below 15A up to 100°C ambient, provided thermal design meets R_θJL = 8°C/W constraints. The S15JCHM6G datasheet confirms this limit under absolute maximum ratings.

Does S15JCHM6G have a specified reverse recovery time (t_rr)?

No, the S15JCHM6G is a standard recovery rectifier and does not specify reverse recovery time (t_rr) in its official documentation. Taiwan Semiconductor characterizes it by forward voltage, leakage, and surge capability-not switching speed. For applications requiring fast recovery (e.g., PFC stages above 50 kHz), engineers should verify t_rr data from alternative parts like STTH1506D; the S15JCHM6G is optimized for conduction efficiency, not switching performance.

What does the 'J' in S15JCHM6G indicate?

The 'J' in S15JCHM6G denotes the 600V V_RRM variant within the S15GC–S15MC family, per Taiwan Semiconductor's ordering code convention: G=400V, J=600V, K=800V, M=1000V. The 'HM6G' suffix reflects tape-and-reel packaging (HM), green compound (G), and date/factory coding per TSC internal standards. This exact marking identifies the S15JCHM6G as the 600V, DO-214AB, RoHS-compliant version.

Is S15JCHM6G suitable for use in automotive applications?

The S15JCHM6G is not qualified to AEC-Q101 or automotive-grade reliability standards. Taiwan Semiconductor explicitly states in its notice that products in the S15GC–S15MC series are "not designed for use in medical, life-saving, or life-sustaining applications"-and automotive safety-critical systems fall under this restriction. While the S15JCHM6G may function electrically in non-safety automotive subsystems (e.g., infotainment power), Aetrix Electronics recommends certified alternatives for ASIL-B or higher requirements.

How is polarity identified on the S15JCHM6G package?

Polarity on the S15JCHM6G is indicated by a visible cathode band located near one end of the DO-214AB (SMC) molded body. Per mechanical data, the banded end corresponds to the cathode terminal, while the opposite end is the anode. This marking aligns with JEDEC DO-214AB standard orientation and must be verified during PCB layout and automated optical inspection (AOI) to prevent reverse-bias failure. The S15JCHM6G datasheet confirms cathode-band polarity in the marking diagram section.