Taiwan Semiconductor Corporation S3GBHR5G

Overview

S3GBHR5G from Taiwan Semiconductor is a 3A, 400V 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 offline SMPS and LED drivers.

For engineers reviewing the S3GBHR5G datasheet, S3GBHR5G pinout, S3GBHR5G application, or S3GBHR5G equivalent, key selection criteria include repetitive peak reverse voltage (400V), forward current rating (3A), thermal resistance (10°C/W), moisture sensitivity level (J-STD-020 Level 1), and RoHS/halogen-free compliance.

Technical Context

This single-die standard recovery rectifier operates with a typical reverse recovery time of 1500 ns under IF = 0.5A, IR = 1.0A, Irr = 0.25A conditions and exhibits 40 pF junction capacitance at 1 MHz and 4.0V reverse bias. Its glass-passivated chip junction ensures stable performance across industrial temperature range (–55°C to +150°C).

The device uses matte tin-plated leads compliant with J-STD-002 solderability and meets JESD 201 Class 2 whisker resistance. Polarity is marked by cathode band; case material is UL 94V-0 rated molding compound.

Key Specifications

Pinout & Package

Package: DO-214AA (SMB), surface-mount, single-anode/single-cathode configuration with cathode band marking. Weight: 0.090 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH3L04S and SB340-E3/52T, the S3GBHR5G provides optimal balance of cost, 400 V blocking, and thermal robustness for 50–100 kHz offline converters - whereas STTH3L04S trades higher VF for speed, and SB340-E3/52T lacks required voltage rating.

Availability

S3GBHR5G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC/DC adapters requiring stable component supply and J-STD-020 Level 1 moisture handling.

Supply support for S3GBHR5G 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 S3GBHR5G belongs to TSC's S3x series of standard recovery rectifiers designed specifically for cost-sensitive, high-volume AC/DC front-end applications where reliability, manufacturability, and regulatory compliance are prioritized over ultra-fast switching.

FAQ

What is the maximum junction temperature rating for S3GBHR5G?

The S3GBHR5G has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings table. This allows operation in thermally demanding environments such as enclosed power supplies or high-ambient industrial settings. Derating curves confirm usable current capacity down to 1.5 A at 125°C ambient with appropriate PCB copper area. The S3GBHR5G maintains specified electrical parameters within this full temperature range.

Is S3GBHR5G RoHS and halogen-free compliant?

Yes, the S3GBHR5G is RoHS compliant and halogen-free per IEC 61249-2-21. This is confirmed in the official Taiwan Semiconductor product documentation and supported by material declarations. The device uses matte tin-plated leads and UL 94V-0 molding compound, meeting environmental and safety requirements for global commercial and industrial equipment. Compliance applies to the S3GBHR5G as shipped and processed per standard reflow profiles.

What does the 'G' in S3GBHR5G signify?

The 'G' in S3GBHR5G indicates the 400 V repetitive peak reverse voltage (VRRM) rating within the S3x family - per Taiwan Semiconductor's ordering code convention where 'A'=50V, 'B'=100V, 'D'=200V, 'G'=400V, 'J'=600V, 'K'=800V, 'M'=1000V. The 'HR5G' suffix denotes tape-and-reel packaging (3,000 pcs/reel) and green compound. The S3GBHR5G is therefore the 400 V, SMB-packaged, RoHS-compliant variant.

Can S3GBHR5G replace S3JBHR5G in a 600 V design?

No, the S3GBHR5G (400 V VRRM) cannot safely replace the S3JBHR5G (600 V VRRM) in a 600 V design. Operating the S3GBHR5G at or above 400 V risks reverse breakdown, thermal runaway, and premature failure. The 200 V shortfall exceeds standard derating margins. For 600 V applications, only S3JBHR5G or higher-rated variants (e.g., S3KBHR5G) are acceptable. Always validate voltage stress margins using worst-case line and transient analysis for the S3GBHR5G or any substitute.

What is the reverse recovery time (trr) specification for S3GBHR5G?

The S3GBHR5G has a reverse recovery time (trr) of 1500 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions. This value is typical and appears in the Electrical Specifications table. As a standard recovery rectifier, the S3GBHR5G is intended for line-frequency and low-to-mid frequency switching (≤100 kHz); its trr is not optimized for high-frequency synchronous rectification. Designers should account for this trr when calculating switching losses in the S3GBHR5G.