Taiwan Semiconductor Corporation S5DH

Overview

S5DH from Taiwan Semiconductor is a surface-mount silicon rectifier diode rated for 5 A average forward current and 200 V repetitive peak reverse voltage in a DO-214AB (SMC) package. It features low forward voltage drop (max 1.15 V at 5 A, 25°C), high surge capability (100 A, 8.3 ms), and AEC-Q101 qualification for automotive reliability.

For engineers reviewing the S5DH datasheet, S5DH pinout, S5DH application, or S5DH equivalent, key selection criteria include its 200 V V_RRM, 13 °C/W junction-to-lead thermal resistance, 1500 ns reverse recovery time, and suitability for DC-DC converters and automotive lighting where robustness under transient surge and high-temperature operation is required.

Technical Context

The S5DH is a single-die, standard-recovery silicon rectifier with glass-passivated junction, designed for general-purpose and automotive-grade power conversion. Its 200 V V_RRM and 100 A I_FSM support snubber circuits and input rectification in medium-voltage DC-DC stages.

Thermally, it delivers R_θJL = 13 °C/W and R_θJA = 47 °C/W, enabling reliable operation up to T_J = 150 °C. Reverse leakage remains ≤10 µA at 25°C and ≤250 µA at 125°C under rated V_R, confirming stable blocking performance across temperature.

Key Specifications

Pinout & Package

Package: DO-214AB (SMC), surface-mount, molded plastic case with matte tin-plated leads; polarity indicated by cathode band; weight ≈ 0.210 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH5L06 and ES5D, the S5DH offers optimized cost-performance for 200 V automotive and industrial rectification in SMC packages-ES5D enables direct replacement, while STTH5L06 trades surface-mount convenience for higher voltage and speed in through-hole form.

Availability

S5DH is available at Aetrix Electronics and suitable for DC-DC converters, automotive LED lighting, snubber networks, and general-purpose industrial rectification requiring stable component supply and AEC-Q101-compliant sourcing.

Supply support for S5DH 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 devices, rectifiers, TVS diodes, and MOSFETs.

The S5DH belongs to TSC's S5xH series of AEC-Q101-qualified surface-mount rectifiers, engineered for automotive and industrial power conversion where reliability, thermal performance, and standardized SMC packaging are essential.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for the S5DH?

The S5DH has a V_RRM of 200 V, as specified in the Absolute Maximum Ratings table. This value defines the highest reverse voltage the diode can block repeatedly without breakdown under normal operating conditions. Exceeding 200 V risks avalanche failure. The S5DH is part of the S5AH–S5MH family, where the letter "D" in S5DH explicitly denotes the 200 V rating per the manufacturer's marking code system.

Is the S5DH suitable for automotive applications?

Yes, the S5DH is AEC-Q101 qualified, meaning it has passed stress tests for temperature cycling, high-temperature operating life, and humidity exposure required for automotive electronics. Its –55°C to +150°C junction temperature range, glass-passivated junction, and moisture sensitivity level 1 make it appropriate for under-hood and interior automotive systems such as LED lighting and power modules. The S5DH datasheet explicitly lists "Automotive application" and "Car lighting" under Applications.

What is the forward voltage drop (V_F) of the S5DH at rated current?

The S5DH has a maximum forward voltage drop of 1.15 V at 5 A forward current and 25°C junction temperature, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) to avoid self-heating effects. At higher temperatures or continuous DC operation, V_F decreases slightly due to negative temperature coefficient, but thermal design must ensure junction temperature stays within limits to maintain reliability. The S5DH's low V_F directly reduces conduction losses in power circuits.

Does the S5DH have a defined reverse recovery time (t_rr)?

Yes, the S5DH has a typical reverse recovery time of 1500 ns, measured at I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This parameter confirms it is a standard-recovery rectifier-not optimized for high-frequency switching-but well-suited for line-frequency and low-frequency (<100 kHz) applications like DC-DC input stages and snubbers. The S5DH's t_rr is consistent across the S5xH family and documented in the Electrical Specifications section.

What package type does the S5DH use, and what are its key mechanical properties?

The S5DH uses the DO-214AB (SMC) surface-mount package: a rectangular molded plastic case with coplanar matte tin-plated leads, polarity marked by a cathode band, and UL 94V-0 flammability rating. Its weight is approximately 0.210 g, and it complies with JESD201 Class 2 whisker testing. The S5DH's mechanical outline and suggested pad layout are provided in the manufacturer's Package Outline Dimensions drawing, ensuring compatibility with standard SMC footprints and automated assembly processes.