Taiwan Semiconductor Corporation S3DBHR5G

Overview

S3DBHR5G from Taiwan Semiconductor is a 3A, 200V standard surface-mount silicon rectifier diode in DO-214AA (SMB) package, featuring glass-passivated junction, 80A surge capability, and 1.15V max forward voltage at 3A/25°C - used in AC/DC front-end rectification for offline SMPS and LED drivers.

For engineers reviewing the S3DBHR5G datasheet, S3DBHR5G pinout, S3DBHR5G application, or S3DBHR5G equivalent, key selection criteria include repetitive peak reverse voltage (200V), thermal resistance (10°C/W), moisture sensitivity level (J-STD-020 Level 1), RoHS/halogen-free compliance, and SMB package compatibility with automated placement.

Technical Context

This single-die standard recovery rectifier operates with a 1500ns reverse recovery time under IF = 0.5A / IR = 1.0A / Irr = 0.25A conditions and exhibits 40pF junction capacitance at 1MHz/4V. Its TJ range spans –55°C to +150°C, supporting industrial ambient operation.

The device uses a planar passivated junction structure with matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance. Polarity is marked by a cathode band on the DO-214AA molded case.

Key Specifications

Pinout & Package

DO-214AA (SMB) surface-mount package with molded UL 94V-0 compound, cathode-indicated band, and matte tin-plated leads. Weight: 0.090 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH3L02 and SB320-E3/5BT, the S3DBHR5G delivers balanced performance: moderate trr avoids excessive EMI while maintaining competitive VF and cost, making it optimal for general-purpose 50–60 kHz SMPS where reliability and manufacturability are critical.

Availability

S3DBHR5G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC/DC adapters requiring stable component supply, J-STD-020 Level 1 handling, and RoHS-compliant sourcing.

Supply support for S3DBHR5G 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 power, automotive, and industrial markets since 1979.

The S3AB–S3MB series was designed specifically for cost-sensitive, high-volume AC/DC rectification applications demanding robust surge capability, automated assembly compatibility, and regulatory compliance without performance trade-offs.

FAQ

What is the maximum junction temperature rating for S3DBHR5G?

The S3DBHR5G has a maximum junction temperature (TJ) rating of +150°C, with a storage temperature range of –55°C to +150°C. This allows reliable operation in industrial environments where ambient temperatures reach 75°C, provided thermal resistance paths (e.g., PCB copper area, lead-to-board conduction) are properly designed per the 10°C/W RθJL specification. The S3DBHR5G's thermal performance supports continuous 3A conduction under these conditions.

Is S3DBHR5G suitable for use in RoHS-compliant and halogen-free designs?

Yes, the S3DBHR5G is fully RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability standards, and its matte tin-plated leads satisfy J-STD-002 solderability requirements. These attributes make the S3DBHR5G appropriate for consumer, industrial, and lighting products requiring environmental compliance certification without derating or special process controls.

What does the "HR5G" suffix indicate in S3DBHR5G?

The "HR5G" suffix in S3DBHR5G denotes Taiwan Semiconductor's internal packaging and environmental code: "H" indicates halogen-free, "R" signifies RoHS compliance, "5" refers to tape-and-reel packaging (3,000 units per reel), and "G" identifies green compound molding. This coding aligns with TSC's standardized ordering nomenclature for the S3AB–S3MB family and confirms the S3DBHR5G's qualification for automated SMT assembly and green manufacturing.

How does the reverse recovery time of S3DBHR5G affect EMI in power supply designs?

The S3DBHR5G has a reverse recovery time (trr) of 1500 ns under standard test conditions. This moderate trr generates predictable, low-amplitude reverse recovery current spikes that simplify EMI filter design compared to ultrafast diodes. In 50–60 kHz SMPS, this behavior minimizes high-frequency ringing while avoiding excessive switching losses - a key reason the S3DBHR5G is widely adopted in cost-sensitive adapter and lighting applications where EMI compliance is mandatory.

Can S3DBHR5G replace S3DB in existing designs?

Yes, the S3DBHR5G is a direct replacement for S3DB with identical electrical specifications (200V VRRM, 3A IF, 80A IFSM), DO-214AA (SMB) package, and pinout. The "HR5G" suffix adds halogen-free, RoHS-compliant, and green-mold enhancements without altering performance or footprint. No PCB or schematic changes are needed when upgrading from S3DB to S3DBHR5G, and the S3DBHR5G maintains full compatibility with legacy reflow profiles and automated placement equipment.