Taiwan Semiconductor Corporation S5GH

Overview

S5GH from Taiwan Semiconductor is a 5A, 400V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass-passivated junction, AEC-Q101 qualification, 100A peak surge current rating, and 1.15V max forward voltage at 5A/25°C. It serves as a primary AC/DC or DC/DC rectification device in automotive lighting and power supply snubber circuits.

For engineers reviewing the S5GH datasheet, S5GH pinout, S5GH application, or S5GH equivalent, key selection criteria include its 400V repetitive peak reverse voltage, 150°C maximum junction temperature, 13°C/W junction-to-lead thermal resistance, and J-STD-020 Level 1 moisture sensitivity - all critical for high-reliability automotive and industrial power conversion designs.

Technical Context

The S5GH is a single-die, standard recovery rectifier with 1500ns reverse recovery time under IF = 0.5A / IR = 1.0A / Irr = 0.25A conditions, and exhibits 60pF junction capacitance at 1MHz and 4V reverse bias. Its thermal design supports continuous 5A conduction with R_θJA = 47°C/W and R_θJL = 13°C/W.

Designed for automated SMT placement, the device uses matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. Polarity is marked by a cathode band; case material meets UL 94V-0 flammability rating.

Key Specifications

Pinout & Package

Package: DO-214AB (SMC), surface-mount, single-anode/single-cathode configuration. Cathode indicated by molded band on cathode-end body.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH5L06 and SB540, the S5GH uniquely balances 400V blocking, 5A current capability, AEC-Q101 compliance, and SMC surface-mount compatibility - making it the only option among the three qualified for under-hood automotive rectification with no package or layout compromise.

Availability

S5GH is available at Aetrix Electronics and suitable for automotive lighting, industrial DC-DC converters, and motor drive snubber circuits requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for S5GH 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 automotive, industrial, and consumer markets since 1979.

The S5GH belongs to TSC's S5xH family of AEC-Q101-qualified surface-mount rectifiers, engineered specifically for high-reliability power conversion in automotive lighting, battery management, and industrial power supplies where thermal robustness and surge immunity are critical.

FAQ

What is the maximum junction temperature rating for the S5GH?

The S5GH has a maximum junction temperature (T_J) of +150°C, verified per AEC-Q101 stress testing. This rating allows reliable operation in under-hood automotive environments and enclosed industrial power supplies. Derating curves in the official S5GH datasheet show usable current drops linearly above +100°C ambient, and the device must be mounted on adequate copper area to maintain this limit. Thermal design should reference R_θJL = 13°C/W for lead-to-heatsink paths.

Is the S5GH pin-compatible with other devices in the S5xH series?

Yes - all S5xH devices, including S5GH, share identical DO-214AB (SMC) package dimensions, pinout, and thermal pad layout. The only difference is V_RRM: S5AH = 50V, S5BH = 100V, S5DH = 200V, S5GH = 400V, etc. This enables drop-in voltage scalability during design validation or BOM optimization without PCB revision. Marking code "S5G" identifies the S5GH variant on the device body.

Does the S5GH meet RoHS and halogen-free requirements?

Yes, the S5GH is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound contains no brominated flame retardants, and lead content is below 1000 ppm. The matte tin plating on leads satisfies JEDEC J-STD-002 solderability requirements, and the entire construction passes JESD201 Class 2 whisker testing - confirming suitability for long-life automotive and industrial deployments.

What is the reverse recovery time (t_rr) specification for the S5GH?

The S5GH has a typical reverse recovery time (t_rr) of 1500 ns, measured under IF = 0.5A, IR = 1.0A, and Irr = 0.25A conditions. This places it in the standard recovery category - appropriate for line-frequency and low-to-mid frequency (<100 kHz) rectification, but not recommended for high-frequency synchronous rectifier replacement. The value is confirmed in the "ELECTRICAL SPECIFICATIONS" table of the official S5GH datasheet (Version A2102).

Can the S5GH be used in a full-wave bridge configuration?

Yes, the S5GH can be used in discrete full-wave bridge configurations, such as center-tapped transformer rectifiers or Graetz bridges built with four S5GH units. Each device operates as a single-diode element with anode/cathode terminals clearly defined by the cathode band. Its 100A I_FSM and 13°C/W R_θJL support parallel operation or high-pulse-demand topologies when properly heatsinked. Layout must observe minimum creepage distances per IPC-2221 for 400V working voltage.