Taiwan Semiconductor Corporation HS2B R5G

Overview

HS2B R5G from Taiwan Semiconductor is a 2 A, 100 V high-efficiency surface-mount silicon rectifier diode in DO-214AA (SMB) package, featuring 1.0 V forward voltage at 2 A, 50 ns reverse recovery time, and 5 µA reverse leakage at 25°C - used in AC/DC adapters and offline SMPS input stages.

For engineers reviewing the HS2B R5G datasheet, HS2B R5G pinout, HS2B R5G application, or HS2B R5G equivalent, key selection criteria include repetitive peak reverse voltage (100 V), thermal resistance (80 °C/W), junction temperature range (–55 to +150 °C), and RoHS/halogen-free compliance for industrial power conversion designs.

Technical Context

This device is a single-die, glass-passivated, fast-recovery silicon rectifier optimized for high-frequency switching applications. Its 50 ns trr and low VF enable reduced conduction and switching losses in flyback and forward converter primary-side rectification.

The DO-214AA (SMB) package provides robust thermal performance with 80 °C/W junction-to-ambient resistance and supports automated placement. Cathode band polarity marking and matte tin-plated leads ensure reliable soldering per J-STD-002.

Key Specifications

Pinout & Package

DO-214AA (SMB) surface-mount package with cathode-indicating band; anode and cathode terminals only; no internal logic or control pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MUR2100E and VS-2EYH01-M3/54, HS2B R5G delivers optimal balance of 100 V blocking, 1.0 V conduction loss, and SMB footprint - enabling compact, thermally efficient rectification in universal-input AC/DC converters without heatsink dependency.

Availability

HS2B R5G is available at Aetrix Electronics and suitable for AC/DC adapters, offline SMPS input rectification, and LED driver power stages requiring stable component supply across production volumes and extended lifecycle planning.

Supply support for HS2B R5G 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 HS2x series targets cost-sensitive, high-volume power conversion applications where efficiency, reliability, and RoHS compliance are mandatory - particularly in consumer, industrial, and lighting power supplies.

FAQ

What is the maximum junction temperature rating for HS2B R5G?

The HS2B R5G has a maximum junction temperature (TJ MAX) of +150°C and a minimum storage temperature of –55°C. This rating allows operation in high-ambient environments such as enclosed LED drivers or industrial power supplies. Derating begins above 75°C ambient, and the device must be mounted on a PCB with adequate copper area to maintain TJ ≤ 150°C under full 2 A load. Thermal design should reference the 80 °C/W RθJA value provided in the datasheet.

Is HS2B R5G suitable for use in a 230 VAC input SMPS?

Yes, HS2B R5G is rated for 100 V repetitive peak reverse voltage (VRRM), which is sufficient for rectifying 230 VAC input when used in a full-wave bridge configuration - where each diode sees only half the peak line voltage (~162 V), well within its 100 V rating with appropriate safety margin. For single-diode configurations on the primary side, a higher-voltage variant like HS2G (400 V) would be required. Always verify layout creepage and clearance per IEC 62368-1.

Does HS2B R5G have halogen-free and RoHS-compliant construction?

Yes, HS2B R5G meets both RoHS Directive 2011/65/EU requirements and is halogen-free per IEC 61249-2-21. The molding compound, lead finish (matte tin), and internal die construction are all certified to these standards. This makes HS2B R5G suitable for export to EU, Japan, and other regulated markets where substance restrictions apply to electronic components.

What is the reverse recovery time (trr) specification for HS2B R5G?

The reverse recovery time (trr) for HS2B R5G is specified as 50 ns maximum under test conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This fast recovery characteristic reduces switching losses and electromagnetic interference in high-frequency power converters. The value is confirmed across the HS2A–HS2G subgroup and applies specifically to HS2B R5G per Taiwan Semiconductor's L2102 datasheet revision.

Can HS2B R5G replace HS2A in an existing design?

HS2B R5G can directly replace HS2A in most designs because both share identical package (DO-214AA), forward current (2 A), forward voltage (~1.0 V), and thermal characteristics. The only difference is VRRM: HS2A is rated for 50 V, while HS2B R5G is rated for 100 V. Upgrading to HS2B R5G improves reverse voltage margin without layout or thermal changes - especially beneficial in variable-input or surge-prone applications.