Taiwan Semiconductor Corporation EABS1J

Overview

EABS1J from Taiwan Semiconductor is a 1A, 600V super fast bridge rectifier in ABS package with quad configuration, 35ns reverse recovery time, 1.70V max forward voltage at 1A/25°C, and 40A peak surge current - used in high-frequency SMPS and lighting ballasts where compact size and low switching loss are critical.

For engineers reviewing the EABS1J datasheet, EABS1J pinout, EABS1J application, or EABS1J equivalent, key selection criteria include repetitive peak reverse voltage (600V), thermal resistance (R_θJL = 25°C/W), AEC-Q101 qualification availability (EABS1JH variant), moisture sensitivity level (MSL-1), and UL 94V-0 molding compound compliance.

Technical Context

The EABS1J integrates four ultra-fast recovery diodes in a single-phase bridge configuration optimized for high-frequency operation up to several hundred kHz. Its 35ns trr and low Qrr minimize switching losses in flyback and resonant converters.

Designed for surface-mount automated assembly, the ABS package features matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. Junction temperature range spans −55°C to +150°C with R_θJA = 80°C/W.

Key Specifications

Pinout & Package

Package: ABS - molded plastic case with 4 external terminals, UL 94V-0 rated, 0.090 g mass, polarity marked on body.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU4K and DF08MA, the EABS1J delivers superior high-frequency performance (35 ns t_rr) in a smaller footprint, with optional AEC-Q101 qualification - making it optimal for space-constrained, high-efficiency, or automotive-grade AC-DC front ends.

Availability

EABS1J is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting ballasts, and industrial sensor power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for EABS1J 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 consumer markets since 1979.

The EABS1x series targets high-reliability, high-frequency AC-DC conversion - designed specifically for compact, thermally efficient bridge rectification in modern power supplies where speed, size, and qualification readiness matter.

FAQ

What is the maximum junction temperature rating for EABS1J?

The EABS1J has a maximum junction temperature (T_J) rating of +150°C and a minimum of −55°C. This wide operating range supports deployment in enclosed industrial environments and automotive under-dash locations. The device's R_θJL of 25°C/W enables effective heat transfer to the PCB, and derating curves in the datasheet confirm 1A continuous current is maintainable up to 100°C ambient with adequate copper area. Thermal design must respect this limit to ensure long-term reliability of the EABS1J.

Is EABS1J pin-compatible with other ABS-packaged bridge rectifiers like GBU4K?

No, EABS1J is not pin-compatible with GBU4K. While both are bridge rectifiers, GBU4K uses a larger GBU package with different lead spacing and terminal arrangement. The EABS1J uses a proprietary ABS outline with 4 terminals in a compact 6.0 × 4.0 mm footprint and specific ~AC1/~AC2/+DC/−DC pin assignment. PCB layout must be designed specifically for the ABS package; migration requires physical redesign. Always verify mechanical drawings before substitution - the EABS1J pinout is defined in TSC document C2103.

Does EABS1J meet automotive qualification standards?

The base EABS1J is not AEC-Q101 qualified, but the variant EABS1JH is explicitly qualified per AEC-Q101. The "H" suffix denotes full stress testing including HTOL, TC, UHAST, and mechanical shock per automotive requirements. For automotive applications such as body control modules or infotainment power supplies, only EABS1JH should be selected. The EABS1J itself remains suitable for industrial and consumer use where AEC-Q101 is not mandated.

What is the typical forward voltage drop of EABS1J at rated current?

The EABS1J has a maximum forward voltage (V_F) of 1.70 V at I_F = 1 A and T_J = 25°C, measured per diode within the bridge. Since a bridge conducts through two diodes in series during each half-cycle, the total forward drop across the device is up to 3.40 V. This value increases with junction temperature - at 125°C, V_F rises approximately 15–20%. Designers should use the max spec for worst-case loss calculation in the EABS1J.

Can EABS1J be used in high-frequency resonant converters?

Yes, the EABS1J is specifically optimized for high-frequency operation with a reverse recovery time (t_rr) of 35 ns - significantly faster than standard recovery bridges. This enables efficient use in LLC resonant, active clamp flyback, and quasi-resonant converters operating above 100 kHz. Its low Q_rr and negligible leakage current reduce switching loss and improve light-load efficiency. For best results, pair the EABS1J with snubber networks tuned to its fast recovery behavior to manage voltage overshoot.