Taiwan Semiconductor Corporation S3JHM6G

Overview

S3JHM6G from Taiwan Semiconductor is a 3A, 600V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass-passivated junction, low forward voltage drop (1.15 V max at 3 A), high surge capability (100 A @ 8.3 ms), and 150°C maximum junction temperature. It serves as primary input rectifier in offline AC/DC power supplies.

For engineers reviewing the S3JHM6G datasheet, S3JHM6G pinout, S3JHM6G application, or S3JHM6G equivalent, key selection criteria include repetitive peak reverse voltage (600 V), forward current rating (3 A), thermal resistance (13 °C/W junction-to-lead), reverse recovery time (1500 ns), and moisture sensitivity level (J-STD-020 Level 1).

Technical Context

This device is a single-die, standard recovery silicon rectifier optimized for cost-sensitive, medium-voltage SMPS front-end rectification. Its 1500 ns reverse recovery time and 60 pF junction capacitance reflect trade-offs favoring robust surge handling over ultra-fast switching.

Thermal performance is defined by R_θJL = 13 °C/W and R_θJA = 47 °C/W, supporting conduction-cooled PCB layouts with adequate copper area. The cathode band marking and matte tin-plated leads comply with J-STD-002 solderability and JESD 201 Class 2 whisker resistance requirements.

Key Specifications

Pinout & Package

DO-214AB (SMC) surface-mount package: molded plastic body per JEDEC DO-214AB, 7.75 mm × 6.25 mm footprint, 2.45 mm height, cathode indicated by band on body.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH3L06S and MUR360, the S3JHM6G offers lowest forward voltage and smallest SMD footprint but trades off recovery speed-making it optimal for cost-driven, thermally constrained, medium-frequency SMPS where conduction loss dominates.

Availability

S3JHM6G is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and industrial DC-DC converter input stages requiring stable component supply, RoHS-compliant packaging, and J-STD-020 Level 1 moisture handling.

Supply support for S3JHM6G 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with ISO/TS 16949 and ISO 14001 certification.

The S3A–S3M series was designed specifically for high-volume, cost-optimized AC/DC front-end rectification in consumer and industrial power supplies, balancing surge robustness, thermal efficiency, and SMT manufacturability.

FAQ

What is the maximum repetitive peak reverse voltage rating for S3JHM6G?

The S3JHM6G has a maximum repetitive peak reverse voltage (V_RRM) of 600 V. This rating is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version O2301), and defines the highest reverse voltage the device can block repeatedly without breakdown under normal operating conditions. Designers must ensure this value exceeds the peak line voltage plus safety margin in their application.

Does S3JHM6G have a specified reverse recovery time, and how is it measured?

Yes, the S3JHM6G has a reverse recovery time (t_rr) of 1500 ns. Per the Electrical Specifications table, this is measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This parameter reflects its standard recovery behavior and is critical for estimating switching losses in hard-switched topologies where the S3JHM6G is deployed.

Is S3JHM6G compliant with RoHS and halogen-free requirements?

Yes, the S3JHM6G is both RoHS compliant and halogen-free, as explicitly stated in the FEATURES section of the Taiwan Semiconductor documentation. These compliance attributes are verified per applicable EU directives and industry standards, making the S3JHM6G suitable for environmentally regulated markets and end products requiring green material declarations.

What is the thermal resistance from junction to lead (R_θJL) for S3JHM6G, and why does it matter?

The junction-to-lead thermal resistance (R_θJL) for S3JHM6G is 13 °C/W, per the Thermal Performance table. This low value indicates efficient heat transfer from the silicon die to the PCB copper via the leads, enabling effective passive cooling without heatsinks in many 3 A applications-especially when using wide copper pours connected to both terminals.

Can S3JHM6G be used in place of S3M (1000 V) or S3G (400 V) in the same circuit?

No-S3JHM6G is rated for 600 V V_RRM, so substituting it for S3M (1000 V) risks reverse breakdown under overvoltage transients, while replacing S3G (400 V) may violate safety margins in 230 VAC systems. Each variant in the S3A–S3M family is electrically distinct; the "J" in S3JHM6G specifically denotes the 600 V grade and must be selected based on actual circuit voltage stress analysis.