Taiwan Semiconductor Corporation HS5K

Overview

HS5K from Taiwan Semiconductor is a 800 V repetitive peak reverse voltage, 5 A average forward current, surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring 1.70 V max forward voltage at 5 A and 75 ns max reverse recovery time - used in high-frequency switching mode power supplies for telecom and computing.

For engineers reviewing the HS5K datasheet, HS5K pinout, HS5K application, or HS5K equivalent, key selection criteria include its 800 V V_RRM, 150 A I_FSM, 50 pF junction capacitance at 1 MHz/4 V, -55°C to +150°C operating temperature range, and DO-214AB mechanical compatibility with automated SMT assembly.

Technical Context

This is a single-die, glass-passivated, standard recovery silicon rectifier optimized for high-efficiency AC/DC conversion in compact power stages. It operates with low forward conduction loss and controlled reverse recovery behavior suitable for 50–500 kHz switching topologies.

The device uses a planar junction structure with matte tin-plated leads compliant to J-STD-002, rated for moisture sensitivity level 1 (J-STD-020), and meets UL 94V-0 flammability and IEC 61249-2-21 halogen-free requirements.

Key Specifications

Pinout & Package

DO-214AB (SMC) package: molded plastic case with cathode band marking; matte tin-plated leads; 0.210 g typical weight; UL 94V-0 rated compound; polarity indicated by single black band on cathode end.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-5EWH08-M3 and MUR580, the HS5K offers optimal balance of SMT manufacturability, 800 V robustness, and cost in volume telecom/server power supplies - while requiring no PCB redesign unlike the TO-220 alternative.

Availability

HS5K is available at Aetrix Electronics and suitable for telecom AC/DC adapters, server VRM input rectification, and industrial motor drive power supplies requiring stable component supply across multi-year production cycles.

Supply support for HS5K 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 Taiwanese manufacturer specializing in discrete power semiconductors, including rectifiers, TVS diodes, and MOSFETs for industrial and computing markets.

The HS5K belongs to TSC's HS5x high-efficiency rectifier family, designed specifically for space-constrained, high-frequency switching power supplies where reliability, SMT compatibility, and thermal performance are critical.

FAQ

What is the maximum junction temperature rating for the HS5K?

The HS5K has a maximum junction temperature (T_J) of +150°C, verified per absolute maximum ratings table. This allows continuous operation in sealed enclosures or high-ambient environments. Derating begins above 25°C ambient per Fig.1 Forward Current Derating Curve. Thermal design must ensure R_θJA ≤ 60°C/W is maintained using adequate copper area and airflow - the HS5K itself does not require heatsinking below 3 A in still air.

Does the HS5K support automated pick-and-place assembly?

Yes, the HS5K is explicitly qualified for automated placement per its product documentation. Its DO-214AB (SMC) package features matte tin-plated leads compliant with J-STD-002 solderability standards, low-profile geometry, and moisture sensitivity level 1 (per J-STD-020), enabling direct placement without pre-baking. The device's 0.210 g weight and symmetrical lead form ensure stability during high-speed SMT processes.

What is the reverse recovery time specification for the HS5K?

The HS5K has a maximum reverse recovery time (t_rr) of 75 ns, measured at I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This value is confirmed in the Electrical Specifications table for HS5J–HS5M variants. The 75 ns t_rr enables efficient operation in hard-switched topologies up to ~300 kHz, reducing switching losses compared to general-purpose rectifiers with >200 ns recovery.

Is the HS5K RoHS and halogen-free compliant?

Yes, the HS5K is RoHS compliant and halogen-free per IEC 61249-2-21. This is explicitly stated in the FEATURES section and reinforced in Mechanical Data. The molding compound contains no brominated flame retardants or chlorine-based additives, and lead content is below 1000 ppm. These attributes meet environmental requirements for CE-marked telecom and industrial equipment sold in EU and Asia-Pacific markets.

What is the marking code printed on the HS5K device body?

Each HS5K device is laser-marked with "HS5K" as its unique identification code, consistent with the ordering row in the datasheet. The marking appears adjacent to the cathode band on the DO-214AB (SMC) package body. No additional date codes, factory identifiers, or green compound indicators are part of the standard HS5K marking - only "HS5K" is guaranteed for traceability and counterfeit prevention.