Taiwan Semiconductor Corporation S1GFSHMWG

Overview

S1GFSHMWG from Taiwan Semiconductor is a 1A, 400V standard surface-mount silicon rectifier diode in SOD-128 package, featuring glass-passivated junction, 30A surge rating, and 150°C max junction temperature; used in DC-DC converters and switching-mode inverters where compact high-voltage rectification is required.

For engineers reviewing the S1GFSHMWG datasheet, S1GFSHMWG pinout, S1GFSHMWG application, or S1GFSHMWG equivalent, key selection criteria include repetitive peak reverse voltage (400V), forward voltage at 1A/25°C (≤1.1V), thermal resistance (R_θJL = 29°C/W), moisture sensitivity level (MSL 1), and RoHS/halogen-free compliance.

Technical Context

This single-die standard recovery rectifier operates with a 400V V_RRM, 1A average forward current, and 30A non-repetitive surge capability (8.3 ms half-sine). Its glass-passivated junction ensures stable performance under thermal cycling and humidity exposure.

Thermal design is supported by R_θJL = 29°C/W and R_θJA = 82°C/W on a 5mm × 5mm Cu pad PCB. Reverse leakage remains ≤1 µA at 25°C and ≤50 µA at 125°C under rated VR, with junction capacitance of 9 pF at 1 MHz and 4 V reverse bias.

Key Specifications

Pinout & Package

Package: SOD-128 - Surface-mount, flat-lead, single-diode configuration with cathode band marking; 0.027 g weight; UL 94V-0 molding compound; matte tin-plated leads compliant with J-STD-002.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH1R04S and ES1D-E3/57T, the S1GFSHMWG delivers optimal trade-off of voltage rating, thermal performance, and SMT compatibility-enabling direct placement into space-limited 400V rectifier nodes without layout or thermal redesign.

Availability

S1GFSHMWG is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial sensor power supplies requiring stable component supply, consistent MSL-1 handling, and halogen-free compliance.

Supply support for S1GFSHMWG 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 devices, and MOSFETs for industrial and consumer markets.

The S1GFSHMWG belongs to TSC's S1DFS–S1MFS standard rectifier family, engineered for cost-effective, high-reliability AC/DC and DC/DC conversion in space-constrained surface-mount applications.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for S1GFSHMWG?

The S1GFSHMWG has a V_RRM of 400 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version C2103). This value defines the highest reverse voltage the device can block repeatedly without breakdown and is critical for selecting appropriate voltage margin in rectifier circuits.

Does S1GFSHMWG meet RoHS and halogen-free requirements?

Yes, the S1GFSHMWG is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. These certifications are verified for the SOD-128 packaged device and apply to all standard production lots.

What is the forward voltage (V_F) of S1GFSHMWG at 1A and 25°C?

The S1GFSHMWG exhibits a maximum forward voltage of 1.1 V at 1A and 25°C, with a typical value of 0.99 V under the same conditions. This specification is measured per pulse test (PW = 0.3 ms) and directly impacts conduction losses in power supply designs.

Is S1GFSHMWG suitable for automated SMT assembly without baking?

Yes, the S1GFSHMWG carries MSL Level 1 per J-STD-020, meaning it has unlimited floor life and may be placed directly into reflow ovens without prior baking. This eliminates process steps and reduces risk of moisture-induced defects during high-volume manufacturing.

What thermal resistance values are specified for S1GFSHMWG?

The S1GFSHMWG specifies R_θJL = 29°C/W (junction-to-lead), R_θJC = 30°C/W (junction-to-case), and R_θJA = 82°C/W (junction-to-ambient) when mounted on a 5 mm × 5 mm Cu pad PCB. These values are essential for calculating junction temperature rise under actual operating current and ambient conditions.