Taiwan Semiconductor Corporation EABS1GH

Overview

EABS1GH from Taiwan Semiconductor is a 1 A, 400 V super fast bridge rectifier in ABS package with quad configuration, 35 ns reverse recovery time, 40 A peak surge current, and AEC-Q101 qualification - used in compact, high-frequency SMPS and LED lighting power stages.

For engineers reviewing the EABS1GH datasheet, EABS1GH pinout, EABS1GH application, or EABS1GH equivalent, key selection criteria include repetitive peak reverse voltage (400 V), forward voltage at 1 A (1.20 V max), junction-to-lead thermal resistance (25 °C/W), and moisture sensitivity level (J-STD-020 Level 1).

Technical Context

The EABS1GH integrates four ultra-fast switching diodes in a single-phase full-wave bridge configuration, enabling efficient AC-to-DC conversion in high-frequency switching topologies. Its 35 ns reverse recovery time minimizes switching losses, while the 40 A IFSM rating supports robust transient handling in adapter and lighting applications.

Thermally optimized for surface-mount use, the ABS package delivers 25 °C/W junction-to-lead resistance and meets UL 94V-0 flammability requirements. Matte tin-plated leads ensure reliable solderability per J-STD-002, and JESD 201 Class 2 whisker resistance supports automotive-grade reliability.

Key Specifications

Pinout & Package

Package: ABS - molded plastic case with matte tin-plated leads, UL 94V-0 rated, 0.090 g weight, polarity marked on top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU4K and MB10F, the EABS1GH uniquely balances 1 A current, 400 V blocking, 35 ns speed, and AEC-Q101 qualification in a compact ABS SMD package - making it optimal for space-constrained, high-frequency, automotive-qualified power supplies.

Availability

EABS1GH is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and USB-C PD adapters requiring stable component supply, automotive-grade reliability, and high-frequency rectification performance.

Supply support for EABS1GH 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 automotive markets since 1979.

The EABS1GH belongs to TSC's AEC-Q101-qualified super fast bridge rectifier product line, engineered specifically for high-efficiency, high-frequency AC-DC conversion in automotive infotainment power supplies and compact consumer adapters.

FAQ

What is the maximum junction temperature rating for EABS1GH?

The EABS1GH has a maximum junction temperature (TJ) rating of +150°C, with an operational range from −55°C to +150°C. This rating is validated across all electrical and thermal specifications in the datasheet and supports sustained operation in high-ambient environments such as enclosed LED drivers and automotive under-hood auxiliary supplies. The EABS1GH maintains specified VF, trr, and IR performance within this full temperature range.

Is EABS1GH pin-compatible with other ABS-packaged bridge rectifiers like EABS1DH or EABS1JH?

Yes, EABS1GH shares identical ABS package dimensions, lead pitch, and pinout (AC1, AC2, +, –) with EABS1DH and EABS1JH. All three variants use the same mechanical outline and marking orientation, enabling drop-in replacement on the same PCB footprint when voltage rating adjustments (200 V / 400 V / 600 V) are needed. No layout change is required for substitution among these AEC-Q101 qualified variants.

What does the "H" suffix in EABS1GH signify?

The "H" suffix in EABS1GH indicates full AEC-Q101 qualification - verified across temperature cycling, high-temperature reverse bias (HTRB), unbiased highly accelerated stress test (UHAST), and mechanical robustness per JESD22 standards. This distinguishes EABS1GH from non-H variants (e.g., EABS1G), which lack automotive-grade reliability validation and are intended for commercial applications only.

How does the 35 ns reverse recovery time of EABS1GH impact EMI in high-frequency SMPS designs?

The 35 ns trr of EABS1GH reduces high-frequency ringing and dv/dt-induced noise during diode commutation, directly lowering conducted and radiated EMI in 65–200 kHz SMPS. Measured data shows >6 dB reduction in 30–100 MHz emissions compared to 100 ns bridges under identical flyback conditions. This allows simpler EMI filter design and faster compliance testing for EABS1GH-based power supplies.

Can EABS1GH be used in place of a discrete diode bridge made from four 1N4937 diodes?

Yes, EABS1GH replaces four discrete 1N4937 diodes in a bridge configuration while delivering superior performance: lower total VF (1.20 V vs. ~2.8 V for series path), matched diode characteristics, reduced parasitic inductance, and 35 ns trr versus 200 ns for 1N4937. The ABS package also saves >40% PCB area and eliminates manual assembly risk, making EABS1GH a functionally and mechanically optimized upgrade.