Taiwan Semiconductor Corporation S3B V6G

Overview

S3B V6G from Taiwan Semiconductor is a 3A, 100V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass-passivated junction, low forward voltage drop (1.15V max at 3A), high surge capability (100A @ 8.3ms), and RoHS/halogen-free compliance. It serves as primary output rectifier in AC/DC adapters and offline SMPS.

For engineers reviewing the S3B V6G datasheet, S3B V6G pinout, S3B V6G application, or S3B V6G equivalent, key selection criteria include repetitive peak reverse voltage (100V), forward current rating (3A), thermal resistance (R_θJL = 13°C/W), reverse recovery time (1500ns), and moisture sensitivity level (MSL 1).

Technical Context

This single-die standard recovery rectifier operates with a maximum junction temperature of 150°C and exhibits typical junction capacitance of 60pF at 1MHz and 4V reverse bias. Its reverse leakage remains ≤10µA at 25°C and ≤250µA at 125°C under rated 100V reverse voltage.

The device uses a DO-214AB (SMC) molded plastic case rated UL 94V-0, with matte tin-plated leads compliant to J-STD-002 solderability and JESD 201 Class 2 whisker resistance. Polarity is indicated by a cathode band on the body.

Key Specifications

Pinout & Package

DO-214AB (SMC) surface-mount package: 2-terminal, single-anode/single-cathode configuration; cathode identified by molded band; body dimensions 7.75 × 6.25 × 2.45 mm; weight ≈ 0.210 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH3L06S and MBR3100CT, the S3B V6G offers optimal balance of cost, thermal performance (R_θJL = 13°C/W), and SMT manufacturability in space-constrained adapters-without sacrificing surge robustness or reliability under sustained 100V reverse stress.

Availability

S3B V6G is available at Aetrix Electronics and suitable for AC/DC adapters, offline SMPS, LED drivers, and DC-DC converters requiring stable component supply, consistent parametric performance, and full traceability across production lots.

Supply support for S3B V6G 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, MOSFETs, and bipolar transistors since 1979.

The S3x series was designed specifically for cost-sensitive, high-volume AC/DC power conversion applications where reliability, manufacturability, and thermal performance are prioritized over ultra-fast switching.

FAQ

What is the maximum junction temperature rating for the S3B V6G?

The S3B V6G has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table. This allows operation in enclosed power supplies with limited airflow, provided thermal design maintains junction temperature below this limit during worst-case load and ambient conditions. The S3B V6G's R_θJL of 13°C/W supports direct PCB copper thermal transfer to meet this requirement.

Does the S3B V6G have a halogen-free and RoHS-compliant construction?

Yes, the S3B V6G is both halogen-free and RoHS-compliant, as explicitly stated in the "Features" section of the official Taiwan Semiconductor datasheet. The molding compound, lead finish, and internal materials meet EU Directive 2011/65/EU and JEDEC J-STD-020 MSL Level 1 requirements. This compliance is confirmed on the product's packaging label and material declaration reports for the S3B V6G.

What is the reverse recovery time (t_rr) specification for the S3B V6G?

The S3B V6G has a reverse recovery time (t_rr) of 1500 ns, measured under IF = 0.5A, IR = 1.0A, and Irr = 0.25A per the Electrical Specifications table. This value reflects its standard recovery behavior and is appropriate for operation in 50–100kHz flyback and forward converters where switching loss and EMI are managed via snubber networks rather than ultra-fast recovery.

How is polarity marked on the S3B V6G package?

Polarity on the S3B V6G is indicated by a molded cathode band on the body of the DO-214AB (SMC) package. The banded end corresponds to the cathode terminal, while the opposite end is the anode. This marking aligns with JEDEC DO-214AB mechanical drawings and is visible under standard optical inspection during SMT placement and post-reflow verification for the S3B V6G.

What packaging format is used for the S3B V6G?

The S3B V6G is supplied in tape-and-reel format, with 3,000 units per reel, as specified in the Ordering Information section. The carrier tape complies with EIA-481 standards and is compatible with standard high-speed pick-and-place equipment. Reel markings include the part number S3B V6G, date code, and factory identifier per Taiwan Semiconductor's marking diagram.