Taiwan Semiconductor Corporation S5A V7G

Overview

S5A V7G from Taiwan Semiconductor is a 5 A, 50 V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring 1.15 V max forward voltage at 5 A, 100 A peak surge current capability, and 150 °C maximum junction temperature-used in AC/DC front-end rectification for compact SMPS and LED drivers.

For engineers reviewing the S5A V7G datasheet, S5A V7G pinout, S5A V7G application, or S5A V7G equivalent, key selection criteria include repetitive peak reverse voltage (50 V), thermal resistance (13 °C/W junction-to-lead), moisture sensitivity level (J-STD-020 Level 1), RoHS/halogen-free compliance, and tape-and-reel packaging for automated assembly.

Technical Context

This single-die standard recovery rectifier operates with a typical reverse recovery time of 1500 ns under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions, and exhibits 60 pF junction capacitance at 1 MHz and 4.0 V reverse bias. Its glass-passivated junction ensures stable performance across temperature and humidity.

The device supports continuous forward current up to 5 A at case temperature ≤ 110 °C, derating linearly to zero at 150 °C junction temperature. It meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements for high-reliability industrial power conversion.

Key Specifications

Pinout & Package

DO-214AB (SMC) surface-mount package with cathode-indicating band; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance; weight ≈ 0.210 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MUR550 and VS-5EWH05FN-M3, the S5A V7G offers lowest forward voltage in its class for cost-sensitive 50 V rectification, trades off speed for thermal efficiency, and delivers verified J-STD-020 Level 1 handling-ideal for high-volume consumer power supplies.

Availability

S5A V7G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC/DC adapters requiring stable component supply, consistent parametric performance, and full traceability from wafer lot to shipment.

Supply support for S5A V7G 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, and MOSFETs for industrial and consumer markets.

The S5A–S5M series was developed to deliver cost-optimized, high-reliability standard recovery rectifiers targeting mainstream AC/DC conversion where thermal efficiency and manufacturability outweigh ultrafast switching needs.

FAQ

What is the maximum junction temperature rating for the S5A V7G?

The S5A V7G has a maximum junction temperature (TJ) rating of +150 °C, validated per absolute maximum ratings table. This allows operation in enclosed environments such as sealed LED drivers or industrial adapters where ambient temperatures exceed 85 °C. Derating curves confirm zero average forward current at 150 °C junction temperature, and thermal resistance values (RθJL = 13 °C/W) enable accurate thermal modeling for PCB layout. The S5A V7G must be mounted on sufficient copper area to maintain TJ ≤ 150 °C under full 5 A load.

Does the S5A V7G meet RoHS and halogen-free requirements?

Yes, the S5A V7G is RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the official Taiwan Semiconductor datasheet revision F2102. The molding compound contains no brominated flame retardants or chlorine-based additives, and lead content is below 1000 ppm. These specifications apply to the entire S5A–S5M family, including the S5A V7G, and are verified through material declarations and third-party testing reports available upon request. Compliance supports export to EU, Japan, and China RoHS-regulated markets.

What is the reverse recovery time (trr) specification for the S5A V7G?

The S5A V7G 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 per the datasheet's electrical specifications table. This value reflects standard recovery behavior-not ultrafast-making the S5A V7G appropriate for ≤100 kHz topologies like flyback or forward converters but unsuitable for high-frequency resonant or LLC designs where trr < 100 ns is required. The S5A V7G's trr is consistent across production lots and validated using JEDEC-standard test circuits.

Is the S5A V7G suitable for automated SMT placement?

Yes, the S5A V7G is explicitly designed for automated placement, as stated in the features section of the Taiwan Semiconductor datasheet. Its DO-214AB (SMC) package has J-STD-020 Level 1 moisture sensitivity, eliminating bake requirements before reflow. Matte tin-plated leads ensure reliable solder wetting per J-STD-002, and the cathode band provides clear polarity identification for vision-guided pick-and-place systems. The S5A V7G ships in 3,000-unit tape-and-reel format compatible with standard 8 mm feeder setups.

What is the marking code for the S5A V7G on the device body?

The marking code for the S5A V7G is "S5A", as shown in the ordering information and marking diagram sections of the Taiwan Semiconductor datasheet. The "V7G" suffix denotes internal manufacturing traceability (date code, factory, green compound), not an electrical variant-it does not appear on the device body. Physical marking consists solely of "S5A" followed by date and factory codes; this matches all S5A devices regardless of reel label suffix. Engineers should verify "S5A" marking during incoming inspection to confirm correct voltage grade (50 V VRRM).