S21867

Product Overview

S21867 is the top marking code commonly associated with the Infineon Technologies / International Rectifier IRS21867S high-voltage high-side and low-side gate driver IC. The device is designed to drive power MOSFETs and IGBTs in half-bridge configurations, featuring independent high-side and low-side output channels, bootstrap operation and 600V high-voltage capability. With 4A source and sink current capability, fast switching performance and undervoltage lockout protection, S21867 is suitable for motor drives, inverters, power converters and industrial power control applications. 

Key Features

• Manufacturer: International Rectifier / Infineon Technologies

• Part Number: S21867

• Full / Related Part Number: IRS21867S

• Device Type: High-side and low-side gate driver IC

• Product Category: Power Management IC / Gate Driver

• Driver Configuration: Independent high-side and low-side channels

• Voltage Rating: 600V high-voltage operation

• Output Current: 4A source / 4A sink typical

• Gate Drive Supply Voltage: 10V to 20V

• High-Side Drive: Floating channel with bootstrap operation

• Output Drive Capability: Designed for MOSFET and IGBT switching control

• Input Logic: CMOS and LSTTL compatible

• Logic Compatibility: Supports 3.3V and 5V logic inputs

• Propagation Delay: Approximately 170ns turn-on and turn-off

• Protection Features: Undervoltage lockout for both channels

• Technology: High-voltage integrated circuit (HVIC) technology

• Switching Performance: High-speed power switching control

• Package Type: SOIC-8 package

• Mounting Type: Surface mount

• Operating Temperature: Industrial temperature range support

• Typical Use: Motor controllers, inverters, DC/DC converters and industrial power systems

• Marking Note: S21867 is a package marking code; buyers should confirm the complete ordering code IRS21867S before production use. :contentReference[oaicite:1]{index=1}

• Ordering / Packaging Note: S21867 buyers should verify manufacturer marking, package condition, date code, lot traceability and datasheet revision before production use.

Applications

S21867 is designed for high-efficiency power switching applications requiring reliable MOSFET or IGBT gate control. Typical applications include three-phase motor drives, industrial inverters, renewable energy converters, UPS systems, electric vehicle power systems, battery-powered equipment and switching power supplies. The independent high-side and low-side channels allow flexible implementation in half-bridge and full-bridge power topologies.

Quality & Sourcing

Antrex Electronics can support S21867 sourcing with stock availability checks, RFQ quotation, package confirmation, date code review and shipment arrangement. For project-based purchasing, buyers can provide quantity, target price, required date code, packaging requirements and application information for faster quotation support.

For quality control, Antrex Electronics can help arrange product photos, label review, visual inspection and third-party testing support when required. OEMs, EMS providers, repair centers and electronic component buyers are welcome to send BOM lists or hard-to-find part requests for sourcing assistance.