BUK7J1R0-40HX

BUK7J1R0-40HX is a power semiconductor module (a high-current, high-voltage switch). It likely contains one or more power switching devices (IGBTs or MOSFETs) in a single module, often with diodes and insulation in a common package. These modules are used in power electronics like motor drives, inverters, DC-DC converters, and renewable-energy systems.
Key points:
- Exact function, rating, and pinout depend on the specific datasheet for this part number.
- Typical parameters to verify: Vds (voltage rating), Ic (current rating), on-state resistance or saturation voltage, switching speed, thermal resistance, and isolation voltage.
- Packaging usually supports bolted mounting to a heatsink and needs appropriate gate-drive circuitry.
For precise details, obtain the manufacturer’s datasheet for BUK7J1R0-40HX or consult the supplier’s documentation.

- Pin count: 8 pins (8-pin package)
- Function: Dual N-channel enhancement-mode MOSFET pair rated for 40 V, used as power switching elements (e.g., in DC-DC converters, motor drivers). The two MOSFETs share the package and provide separate gate terminals (and sources/drains as per the device variant).

Manufacturer: KBP Instrument Design Bureau (KBP), a Russian defense design bureau (part of Almaz-Antey).
Kind of company: A state-owned Russian defense contractor that designs and develops air-defense missiles and related systems.

BUK7J1R0-40HX is a high-voltage, high-current N-channel MOSFET. Common application areas include:
- Switch-mode power supplies (SMPS) and DC-DC converters
- AC-DC adapters and consumer/server power modules
- Solar inverters and energy-storage systems
- Motor drive circuits (BLDC, PMSM, induction)
- Automotive power electronics (inverters, DC-DC converters)
- Uninterruptible power supplies (UPS) and telecom/industrial power systems
Used for high-efficiency, high-frequency switching in multimedia, industrial, and automotive power electronics.

D²PAK (TO-263) surface-mount package.