Taiwan Semiconductor Corporation ESGLWH

Overview

ESGLWH from Taiwan Semiconductor is a 400 V, 0.8 A super fast surface-mount rectifier in SOD-123W package, featuring 35 ns reverse recovery time, 0.96 V typical forward voltage at 0.8 A/25°C, and AEC-Q101 qualification for automotive use in DC-DC converters and freewheeling circuits.

For engineers reviewing the ESGLWH datasheet, ESGLWH pinout, ESGLWH application, or ESGLWH equivalent, key selection criteria include peak reverse voltage (400 V), thermal resistance (R_θJA = 88 °C/W), junction temperature range (–55 to +150 °C), and low-profile SOD-123W packaging suitable for high-density automotive PCB layouts.

Technical Context

The ESGLWH employs a glass-passivated single-die silicon junction optimized for fast switching in unidirectional power conversion. Its 35 ns trr and low Qrr support high-frequency operation in snubber and freewheeling paths where diode recovery losses must be minimized.

Thermal design is enabled by R_θJL = 34 °C/W and R_θJC = 35 °C/W, measured on a 5 mm × 5 mm copper pad - critical for sustained 0.8 A conduction in thermally constrained automotive modules.

Key Specifications

Pinout & Package

Package: SOD-123W - low-profile surface-mount case with matte tin-plated leads, UL 94V-0 molding compound, and cathode band polarity marking. Weight: 0.016 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH0.8L04 and MUR0840, ESGLWH uniquely combines AEC-Q101 qualification, SOD-123W footprint, and 35 ns t_rr - enabling compact, automotive-compliant designs without trade-offs in speed or thermal performance.

Availability

ESGLWH is available at Aetrix Electronics and suitable for automotive lighting, DC-DC converter, and freewheeling applications requiring stable component supply, long-lifecycle assurance, and traceable sourcing for Tier-1 OEM programs.

Supply support for ESGLWH 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 automotive, industrial, and computing markets since 1979.

The ESxLWH series targets high-reliability automotive power conversion, delivering super-fast rectification with AEC-Q101 validation, low-profile packaging, and thermal performance optimized for space-constrained engine control and lighting modules.

FAQ

What is the peak repetitive reverse voltage rating for ESGLWH?

The ESGLWH has a peak repetitive reverse voltage (V_RRM) rating of 400 V. This value is confirmed in the Absolute Maximum Ratings table on page 1 of the official Taiwan Semiconductor datasheet (Version A2103). It defines the maximum reverse-bias voltage the device can block repeatedly without breakdown, making ESGLWH suitable for 24 V and 48 V automotive bus protection and DC-DC isolation stages where transient overvoltages up to 400 V may occur.

Is ESGLWH qualified for automotive applications?

Yes, ESGLWH is AEC-Q101 qualified, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and electrostatic discharge (ESD), confirming suitability for under-hood and cabin automotive systems such as LED drivers, body control modules, and DC-DC converters deployed in passenger vehicles and commercial fleets.

What is the forward voltage drop of ESGLWH at 0.8 A and 25 °C?

The forward voltage (V_F) of ESGLWH is 0.96 V typical and 1.30 V maximum at I_F = 0.8 A and T_J = 25 °C, per the Electrical Specifications table on page 2 of the datasheet. This V_F directly impacts conduction loss (P = I × V), and its low value supports high-efficiency operation in space- and thermally-constrained automotive power supplies where minimizing heat generation is critical.

What package type does ESGLWH use, and what are its mechanical advantages?

ESGLWH uses the SOD-123W package - a low-profile, surface-mount case with dimensions optimized for automated placement and high-density PCB layouts. Key mechanical advantages include a height ≤ 1.1 mm, matte tin-plated solderable leads compliant with J-STD-002, UL 94V-0 flammability rating, and moisture sensitivity level 1 (no bake required), all documented in the Mechanical Data section of the Taiwan Semiconductor datasheet.

How does the thermal performance of ESGLWH compare to standard SOD-123 rectifiers?

ESGLWH achieves R_θJA = 88 °C/W and R_θJL = 34 °C/W when mounted on a 5 mm × 5 mm copper pad, per the Thermal Performance table. These values are 15–20% lower than typical SOD-123 rectifiers due to enhanced leadframe thermal path design. As a result, ESGLWH sustains 0.8 A continuous current at higher ambient temperatures - critical for engine compartment deployments where airflow is limited and thermal margins are tight.