Taiwan Semiconductor Corporation S2BHR5G

Overview

S2BHR5G from Taiwan Semiconductor is a 2 A, 100 V repetitive peak reverse voltage (V_RRM) standard surface-mount silicon rectifier diode in DO-214AA (SMB) package, featuring glass-passivated junction, low forward voltage drop (≤1.15 V at 2 A), and 50 A surge capability - deployed in AC/DC front-end stages of compact switching mode power supplies.

For engineers reviewing the S2BHR5G datasheet, S2BHR5G pinout, S2BHR5G application, or S2BHR5G equivalent, key selection criteria include verified V_RRM = 100 V, I_F = 2 A continuous rating, trr = 1500 ns recovery time, R_θJA = 53 °C/W thermal resistance, and SMB package compatibility with automated SMT placement.

Technical Context

This standard recovery rectifier uses a single-die silicon PN junction with glass passivation for stable reverse leakage (<1 µA at 25°C, <125 µA at 125°C) and robust surge handling. Its 1500 ns reverse recovery time reflects conventional (non-fast or ultrafast) switching behavior suited for line-frequency and low-to-moderate frequency SMPS operation.

Thermally, the device exhibits R_θJL = 16 °C/W (junction-to-lead) and R_θJA = 53 °C/W (junction-to-ambient), enabling reliable 2 A DC conduction up to +150°C junction temperature when mounted on standard 1-inch² copper pad per JEDEC standards.

Key Specifications

Pinout & Package

Package: DO-214AA (SMB), surface-mount, single-anode/single-cathode configuration. Cathode indicated by molded band. Matte tin-plated leads, J-STD-002 solderable, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH2R01 and 1N5402RLG, the S2BHR5G offers optimal balance of cost, SMB SMT compatibility, and thermal performance for mainstream 50–100 kHz AC/DC converters - neither optimized for ultrafast switching nor intended for through-hole use.

Availability

S2BHR5G is available at Aetrix Electronics and suitable for AC/DC adapters, LED drivers, and industrial power supplies requiring stable component supply, RoHS-compliant sourcing, and consistent DO-214AA (SMB) packaging across production batches.

Supply support for S2BHR5G 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 S2A–S2V series was designed specifically for cost-effective, high-reliability AC/DC front-end rectification in compact, automated SMT-based power supplies - emphasizing manufacturability, thermal robustness, and regulatory compliance.

FAQ

What is the maximum junction temperature rating for the S2BHR5G?

The S2BHR5G has a maximum junction temperature (T_J) rating of +150°C, as specified in its absolute maximum ratings table. This allows the device to operate reliably in enclosed or high-ambient environments when properly heatsinked. Derating curves show that the average forward current decreases linearly above 25°C ambient, and the S2BHR5G must be applied within these limits to avoid thermal runaway or premature failure.

Is the S2BHR5G RoHS and halogen-free compliant?

Yes, the S2BHR5G is fully RoHS compliant per EU Directive 2011/65/EU and halogen-free in accordance with IEC 61249-2-21. The molding compound and plating meet UL 94V-0 flammability and JESD 201 Class 2 whisker resistance requirements, making it suitable for consumer, industrial, and medical-adjacent applications where material compliance is mandatory.

What does the 'R5G' suffix in S2BHR5G indicate?

The 'R5G' suffix in S2BHR5G denotes tape-and-reel packaging (R), green compound (G), and a specific date/lot coding scheme per Taiwan Semiconductor's internal ordering convention. It does not alter electrical specifications - all S2BH variants share identical V_RRM = 100 V, I_F = 2 A, and thermal parameters. The base part remains functionally identical to S2B.

Can the S2BHR5G replace a 1N4002 in an existing design?

The S2BHR5G can replace a 1N4002 in most cases, as both have V_RRM = 100 V and I_F = 1 A (1N4002) vs. 2 A (S2BHR5G). However, the S2BHR5G's DO-214AA (SMB) package differs physically from the 1N4002's DO-41 axial package - requiring PCB redesign. Its lower V_F and higher I_FSM improve efficiency and surge tolerance, but mechanical fitment is not drop-in.

What is the reverse recovery time (trr) of the S2BHR5G and how does it affect circuit design?

The S2BHR5G has a reverse recovery time (trr) of 1500 ns under standard test conditions (I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A). This places it in the standard recovery category, making it appropriate for line-frequency and low-to-moderate frequency SMPS (≤100 kHz). In higher-frequency designs, trr contributes to switching loss and EMI; designers should verify snubber requirements and thermal margins when using the S2BHR5G beyond 60 kHz.