Taiwan Semiconductor Corporation S4M M6G

Overview

S4M M6G from Taiwan Semiconductor is a 4A, 1000V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass-passivated junction, 100A peak surge current capability, 1.15V max forward voltage at 4A, and 10µA max reverse leakage at 25°C - used in high-voltage AC/DC front-end rectification for industrial SMPS and lighting ballasts.

For engineers reviewing the S4M M6G datasheet, S4M M6G pinout, S4M M6G application, or S4M M6G equivalent, key selection criteria include verified VRRM=1000V rating, TJ(max)=150°C operation, RθJA=47°C/W thermal resistance, moisture sensitivity level 1 compliance, and DO-214AB mechanical compatibility with automated SMT placement.

Technical Context

This discrete power rectifier operates as a single-die, unidirectional PN junction device optimized for high-voltage, medium-current switching applications. Its glass-passivated chip ensures stable reverse characteristics up to 1000V repetitive peak reverse voltage and supports 8.3ms half-sine surge currents up to 100A without degradation.

The S4M M6G exhibits 1500ns reverse recovery time under IF=0.5A/IR=1.0A/Irr=0.25A conditions and 60pF junction capacitance at 1MHz/4V, making it suitable for 50–100kHz SMPS topologies where soft-recovery trade-offs are acceptable for cost-sensitive designs.

Key Specifications

Pinout & Package

DO-214AB (SMC) surface-mount package with cathode-indicating band; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance; UL 94V-0 molding compound; approximate weight 0.210g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH4L06D and VS-4EWH06FN-M3, the S4M M6G provides unique 1000V blocking capability in DO-214AB while maintaining industry-standard thermal and surge performance - critical for universal-input, high-reliability industrial power supplies where overvoltage margin directly impacts field failure rates.

Availability

S4M M6G is available at Aetrix Electronics and suitable for industrial SMPS, LED lighting drivers, and AC-DC adapters requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.

Supply support for S4M M6G 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 S4A–S4M series was developed to deliver cost-optimized, high-reliability surface-mount rectifiers for global power supply manufacturers, emphasizing ruggedness, JEDEC-compliant packaging, and broad voltage coverage from 50V to 1000V.

FAQ

What is the maximum repetitive peak reverse voltage (VRRM) rating for the S4M M6G?

The S4M M6G has a VRRM rating of 1000 V, confirmed in the Absolute Maximum Ratings table of Taiwan Semiconductor's K2102 datasheet. This value defines the highest reverse voltage the diode can block repeatedly without breakdown under normal operating conditions and is validated across production lots per JESD22-A114 reliability testing. The S4M M6G maintains this rating at junction temperatures up to +150°C.

Does the S4M M6G have a specified reverse recovery time (trr), and under what test conditions?

Yes, the S4M M6G specifies a typical reverse recovery time (trr) of 1500 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per the Electrical Specifications section. This parameter reflects its behavior in hard-switching applications and is consistent across the S4x family. The S4M M6G does not qualify as an ultrafast or soft-recovery diode, and designers should account for associated switching losses in 50–100 kHz topologies.

Is the S4M M6G compliant with RoHS and halogen-free standards?

Yes, the S4M M6G is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the Features section of the official datasheet. The molding compound is UL 94V-0 rated, and the matte tin-plated leads meet J-STD-002 solderability requirements. These certifications apply to the full S4A–S4M family, including the S4M M6G variant.

What is the thermal resistance from junction to ambient (RθJA) for the S4M M6G, and how is it measured?

The S4M M6G has a junction-to-ambient thermal resistance (RθJA) of 47 °C/W, specified under standard JEDEC test conditions (single-layer 1-inch² copper pad, FR-4 PCB). This value assumes no external heatsinking and guides minimum copper area requirements for thermal management. The S4M M6G also provides RθJL = 13 °C/W for lead-mounted thermal path estimation in compact layouts.

Can the S4M M6G be used as a direct replacement for other S4x series diodes like S4K or S4J?

No - the S4M M6G is not a direct replacement for S4K (800V) or S4J (600V) due to its distinct 1000V VRRM rating and corresponding electrical derating curves. While all S4x parts share DO-214AB packaging and pinout, substituting the S4M M6G into a design originally specifying S4J requires verification of voltage margin, thermal rise, and surge coordination. The S4M M6G must be selected based on its specific 1000V capability, not interchangeably.