Taiwan Semiconductor Corporation S3BBHR5G

Overview

S3BBHR5G from Taiwan Semiconductor is a 3A, 100V standard surface-mount silicon rectifier diode in DO-214AA (SMB) package, featuring glass-passivated junction, 1.15V max forward voltage at 3A/25°C, 80A surge capability, and 150°C max junction temperature - used in AC/DC front-end rectification for compact SMPS and LED drivers.

For engineers reviewing the S3BBHR5G datasheet, S3BBHR5G pinout, S3BBHR5G application, or S3BBHR5G equivalent, key selection criteria include repetitive peak reverse voltage (100V), forward current rating (3A), thermal resistance (10°C/W), moisture sensitivity level (J-STD-020 Level 1), and RoHS/halogen-free compliance for high-reliability industrial power designs.

Technical Context

This device is a single-die, unidirectional standard recovery rectifier optimized for cost-sensitive, medium-frequency switching applications up to ~100 kHz. Its 1500 ns reverse recovery time and 40 pF junction capacitance reflect trade-offs favoring low conduction loss over ultra-fast switching.

The DO-214AA (SMB) package provides robust thermal performance (R_θJL = 10°C/W) and supports automated placement with matte tin-plated leads compliant to J-STD-002. Polarity is marked by a cathode band; weight is 0.090 g.

Key Specifications

Pinout & Package

Package: DO-214AA (SMB), surface-mount, single-anode/single-cathode configuration. Cathode indicated by molded band. Matte tin-plated leads, UL 94V-0 molding compound, JESD201 Class 2 whisker resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH3L06S and SB3100, the S3BBHR5G offers optimal balance of 100 V rating, 1.15 V forward drop, J-STD-020 Level 1 handling, and SMB footprint - making it ideal for high-volume, space-constrained AC/DC adapters and LED drivers where thermal and assembly reliability are prioritized.

Availability

S3BBHR5G is available at Aetrix Electronics and suitable for AC/DC adapters, LED lighting drivers, and industrial SMPS requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.

Supply support for S3BBHR5G 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-effective, high-yield surface-mount rectification in consumer and industrial power supplies - emphasizing manufacturability, thermal robustness, and regulatory compliance in DO-214AA packaging.

FAQ

What is the maximum junction temperature rating for S3BBHR5G?

The S3BBHR5G has a maximum junction temperature (T_J) of 150°C, as specified in the Absolute Maximum Ratings table. This rating defines the upper thermal limit for reliable operation. Derating of forward current begins above 75°C lead temperature, per the Forward Current Derating Curve in the datasheet. Thermal design must ensure the S3BBHR5G junction stays within this limit under worst-case ambient and power dissipation conditions.

Is S3BBHR5G suitable for use in a bridge rectifier configuration?

Yes, the S3BBHR5G is a single-die, single-junction standard rectifier diode and is commonly used as one leg in discrete full-wave bridge rectifiers. Its DO-214AA (SMB) package, 100 V V_RRM, and 80 A I_FSM make it appropriate for low-to-medium voltage AC input stages. Four S3BBHR5G devices can be assembled into a bridge, provided layout respects polarity (cathode band) and thermal coupling between devices is managed.

Does S3BBHR5G meet J-STD-020 moisture sensitivity requirements?

Yes, the S3BBHR5G is rated at Moisture Sensitivity Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/60% RH and requires no baking prior to standard reflow soldering. This simplifies SMT line integration and eliminates pre-reflow handling steps - a key advantage for high-throughput manufacturing of products using the S3BBHR5G.

What is the reverse recovery time (t_rr) of S3BBHR5G and how does it affect circuit performance?

The S3BBHR5G has a reverse recovery time (t_rr) of 1500 ns under the test condition of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This relatively long t_rr indicates it is a standard (not fast or ultrafast) recovery diode. In practice, this limits usable switching frequency to ~100 kHz and increases switching loss and EMI in high-frequency topologies - confirming its intended use in conventional SMPS and adapters rather than resonant or high-frequency PFC stages.

Can S3BBHR5G replace S3AB in a design?

No - S3BBHR5G and S3AB are distinct part numbers within the same family but differ in voltage rating: S3AB is rated for 50 V V_RRM, while S3BBHR5G is rated for 100 V V_RRM. Although both share DO-214AA (SMB) packaging and identical current ratings, substituting S3BBHR5G for S3AB is acceptable only if the circuit's reverse voltage stress exceeds 50 V and remains ≤100 V. Always verify voltage margin and thermal behavior in the target application before replacement.