Taiwan Semiconductor Corporation S1KBHR5G

Overview

S1KBHR5G from Taiwan Semiconductor is a 1A, 800V standard surface-mount silicon rectifier diode in DO-214AA (SMB) package, featuring glass-passivated junction, low forward voltage drop (max 1.1 V at 1 A), and 30 A surge current capability - used in AC/DC front-end rectification for offline SMPS and LED drivers.

For engineers reviewing the S1KBHR5G datasheet, S1KBHR5G pinout, S1KBHR5G application, or S1KBHR5G equivalent, key selection criteria include repetitive peak reverse voltage (800 V), thermal resistance (30 °C/W), moisture sensitivity level (J-STD-020 Level 1), RoHS/halogen-free compliance, and SMB-compatible footprint for automated assembly.

Technical Context

This single-die standard recovery rectifier operates with a maximum junction temperature of 150 °C and supports continuous forward current up to 1 A at 75 °C lead temperature. Its 800 V V_RRM rating enables use in universal-input 85–265 V_AC power stages without derating.

The device exhibits 5 µA max reverse leakage at 25 °C and 50 µA at 125 °C under rated reverse voltage, with 12 pF typical junction capacitance at 4 V - suitable for medium-frequency switching (≤100 kHz) where reverse recovery time is not critical.

Key Specifications

Pinout & Package

DO-214AA (SMB) surface-mount package with cathode-indicating band; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH1R08 and MUR108, the S1KBHR5G offers optimal balance of low-cost SMB packaging, proven reliability in 50–100 kHz SMPS, and simplified thermal management - making it preferred for cost-sensitive, volume production of offline AC/DC converters.

Availability

S1KBHR5G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and industrial AC-DC converters requiring stable component supply, J-STD-020 Level 1 moisture handling, and RoHS-compliant sourcing.

Supply support for S1KBHR5G 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 power, automotive, and industrial markets since 1979.

The S1KBHR5G belongs to TSC's S1x series of standard surface-mount rectifiers - engineered for high-volume, cost-sensitive AC/DC front-end applications where reliability, manufacturability, and regulatory compliance are prioritized over ultrafast switching.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for S1KBHR5G?

The S1KBHR5G has a maximum repetitive peak reverse voltage (V_RRM) of 800 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version I2102). This rating applies across the full operating temperature range and defines the highest transient-repetitive voltage the device can block in reverse bias without breakdown. It is critical for selecting appropriate safety margins in 230 V_AC and 277 V_AC input designs.

Is S1KBHR5G suitable for automated SMT assembly?

Yes, the S1KBHR5G is explicitly designed for automated placement, as stated in its FEATURES section. Its DO-214AA (SMB) package, matte tin-plated leads compliant with J-STD-002, and J-STD-020 Level 1 moisture sensitivity make it fully compatible with standard reflow processes. The device's 0.090 g weight and symmetrical geometry further ensure reliable pick-and-place yield in high-speed SMT lines.

What is the forward voltage drop (V_F) specification for S1KBHR5G at rated current?

The S1KBHR5G specifies a maximum forward voltage drop (V_F) of 1.1 V at 1 A forward current and 25 °C junction temperature, per the Electrical Specifications table. This value is measured under pulse conditions (PW = 0.3 ms) and represents worst-case conduction loss - essential for calculating thermal rise and efficiency in continuous-duty applications like LED drivers and adapters.

Does S1KBHR5G meet RoHS and halogen-free requirements?

Yes, the S1KBHR5G is RoHS compliant and halogen-free per IEC 61249-2-21, as documented in the FEATURES section of the Taiwan Semiconductor datasheet. These certifications are verified through material declarations and testing, supporting compliance for export to EU, China, and other regulated markets - particularly important for consumer electronics and industrial equipment subject to environmental directives.

What is the junction-to-lead thermal resistance (R_θJL) of S1KBHR5G?

The S1KBHR5G has a typical junction-to-lead thermal resistance (R_θJL) of 30 °C/W, as specified in the Thermal Performance section. This parameter quantifies how effectively heat transfers from the silicon die to the PCB copper via the leads, enabling accurate thermal modeling. At 1 A continuous current and 1.1 V V_F, this results in ~1.1 W dissipation and a ~33 °C temperature rise above lead temperature - confirming suitability for natural-convection cooling.