BF457 The BF457 is a bipolar junction transistor manufactured by Philips. It features a collector-emitter voltage of 160V and a collector current of 100mA.
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BF457

Available from 1 distributors
Mfr Name: Philips
Philips
The BF457 is a bipolar junction transistor manufactured by Philips. It features a collector-emitter voltage of 160V and a collector current of 100mA.
Total Stock: 16 pcs
$ Price Range: $0.77

BF457 Available from 1 distributor

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BF457 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Junction Temperature
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BF457 Description

Short technical summary and product information.

The BF457 is a bipolar junction transistor (BJT) produced by Philips. It is designed for use in switching and amplification applications. The device has a collector-emitter voltage (VCEO) of 160V and a collector current (IC) of 100mA, making it suitable for high-voltage switching circuits. The transistor is packaged in a TO-126 or SOT32 case, intended for through-hole mounting. Its thermal resistance junction to ambient is 104 K/W, and junction temperature can reach up to 150°C. The BF457 features a transition frequency (fT) of 90 MHz, indicating its high-frequency performance. It also has a feedback capacitance (Cre) of 3.5 pF, which influences its high-frequency response. The device's collector cut-off current (ICBO) is 50 nA at various collector-base voltages, and the emitter cut-off current (IEBO) is 100 nA at 5V. It is designed for use in various electronic circuits requiring high-voltage switching and amplification.

BF457 Quick Information

Product Type: NPN Transistor
Canonical Name: BF457 NPN High-Voltage Transistor

BF457 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BF457 Estimated Pricing

Qty Low High
1+ $0.77 $0.77

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

BF457 Features

  • Maximum collector-emitter voltage of 160V
  • Collector current up to 100mA
  • Transition frequency of 90 MHz
  • Package options include TO-126 and SOT32
  • Thermal resistance junction to ambient is 104 K/W

BF457 Applications

  • Suitable for video output stages in televisions.
  • Used in high-voltage switching applications.
  • Ideal for signal amplification in audio equipment.
  • Applicable in power regulation circuits.
  • Designed for general-purpose switching in electronic devices.

BF457 FAQs

3 frequently asked questions generated from this part’s specifications.
What is the collector-emitter voltage of the BF457?

The collector-emitter voltage (VCEO) of the BF457 is 160 V.

What package options are available for the BF457?

The BF457 is available in TO-126 and SOT32 packages.

What is the maximum collector current for the BF457?

The maximum collector current (IC) is 100 mA.

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