Mfr Part #:

BUW12AF

Mfr Name: Philips

The BUW12AF is an NPN power transistor from Philips designed for high voltage, fast switching industrial applications. It offers a collector-emitter sustaining voltage of 450V.

✓ Total Stock: 515 pcs

$ Price Range: $0.09

BUW12AF Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Smaxon Electronics ✓ Non-Authorised Inventory information	495 pcs On Request	495 pcs	On Request	1	On Request	On Request	09+	On Request	On Request
Bristol Electronics ✓ Non-Authorised Inventory information	20 pcs On Request	20 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

BUW12AF Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Philips
Junction Temperature	150℃
SVHC Present	Not Present
Turn On Time	1.0μs

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BUW12AF Description

Short technical summary and product information.

The BUW12AF is a silicon NPN power transistor manufactured by Philips, engineered for demanding high voltage and fast switching industrial applications. It boasts a collector-emitter sustaining voltage of 450V (minimum) and a low collector saturation voltage of 1.5V maximum at 5A.

Key electrical characteristics include a continuous collector current rating of 8A and a peak collector current of 20A. The base current capabilities are 4A continuous and 6A peak. Thermal performance is supported by a junction-to-case thermal resistance of 3.7°C/W, with a maximum continuous collector power dissipation of 34W at 25°C.

This transistor is designed for applications requiring robust performance in high-voltage switching scenarios. Its switching times are also notable, with a turn-on time of 1.0μs, storage time of 4.0μs, and fall time of 0.8μs, making it suitable for efficient power management circuits.

BUW12AF Quick Information

Product Type: NPN Power Transistor

Series: BUW12

Canonical Name: BUW12AF NPN Power Transistor

Subcategory: NPN

BUW12AF Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

BUW12AF Estimated Pricing

Qty	Low	High
1+	$0.09	$0.09

Estimated market price range - modelled values for guidance only, not live distributor offers.

BUW12AF Features

450V collector-emitter sustaining voltage.
Low 1.5V collector saturation voltage.
8A continuous collector current.
Designed for high voltage switching.
Fast switching times.

BUW12AF Applications

Suitable for industrial applications.
Ideal for high voltage circuits.
Used in fast switching designs.
Power management applications.

BUW12AF FAQs

7 frequently asked questions generated from this part’s specifications.

What is the collector-emitter voltage rating of the BUW12AF?

The BUW12AF has a collector-emitter voltage (VCEO) of 450V and a sustaining voltage (VCEO(SUS)) of 450V minimum.

What is the maximum collector current of the BUW12AF?

The continuous collector current (IC) rating is 8A, with a peak collector current (ICM) of 20A.

What is the maximum power dissipation of the BUW12AF?

The collector power dissipation is 34W at a case temperature of 25°C.

What are the switching times of the BUW12AF?

Typical switching times are 1.0µs turn-on, 4.0µs storage, and 0.8µs fall time at IC=5A and IB1=-IB2=1A.

What is the base-emitter saturation voltage of the BUW12AF?

The base-emitter saturation voltage (VBE(sat)) is 1.5V maximum at IC=5A, IB=1A.

What is the maximum junction temperature of the BUW12AF?

The maximum junction temperature is 150°C, and the storage temperature range is -65°C to 150°C.

What is the collector-base voltage rating of the BUW12AF?

The collector-base voltage (VCBO) is 1000V.