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STMicroelectronics · Discrete semiconductors

BUF420AW

TRANS NPN 450V 30A TO247-3

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BUF420AW component illustration
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BUF420AW specifications

Recorded source facts. Missing values are kept explicit; verify the exact manufacturer document before design approval.

ManufacturerSTMicroelectronics
Ordering codeBUF420AW
FamilyDiscrete semiconductors
PackageTO-247-3
Product StatusActive
Transistor TypeNPN
Current - Collector (Ic) (Max)30 A
Voltage - Collector Emitter Breakdown (Max)450 V
Vce Saturation (Max) @ Ib, Ic500mV @ 4A, 20A
Current - Collector Cutoff (Max)Not provided in source
DC Current Gain (hFE) (Min) @ Ic, VceNot provided in source
Power - Max200 W
Frequency - TransitionNot provided in source
Operating Temperature150°C (TJ)
Mounting TypeThrough Hole
Package / CaseTO-247-3
Supplier Device PackageTO-247-3

Documents and evidence

BUF420AW ↗

Catalog sources

www.ic-components.com · BUF420AW ↗

Source directory identity match; source detail pending. Specifications remain from existing catalog.

Before sourcing BUF420AW

  1. Identify the firmware and board baseline
  2. Check flash, RAM and required peripherals
  3. Review pin assignment and supply limits
  4. Keep the full temperature and package suffix
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