BC638 The BC638 is a general-purpose PNP transistor from Philips, housed in a TO-92 package. It is designed for moderately high voltage switching applications.
Mfr Part #:

BC638

Available from 1 distributors
Mfr Name: Philips
Philips
The BC638 is a general-purpose PNP transistor from Philips, housed in a TO-92 package. It is designed for moderately high voltage switching applications.
✓ Total Stock: 2,000 pcs
$ Price Range: $0.99

BC638 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,000 pcs
2000 pcs On Request 1 On Request On Request On Request On Request On Request

BC638 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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BC638 Description

Short technical summary and product information.

The BC638 is a versatile PNP transistor manufactured by Philips, suitable for various applications including moderately high voltage switching. It features a collector-emitter voltage (VCE) of -60V and a continuous collector current (IC) of 1A, with a maximum power dissipation of 1W. This makes it a reliable choice for pre or mid-amplifier stages in power amplifiers, which often operate with DC voltages between 60V and 120V.

 

The transistor is available in a standard TO-92 package, facilitating easy integration into circuit designs. Its DC current gain (hFE) can reach a maximum of 160. The BC638 operates with an emitter-base voltage (VBE) of -5V and a maximum base current (IB) of -100mA. The maximum collector-base voltage (VCB) is 50V. With a transition frequency (fT) of 100 MHz and collector capacitance (Cc) of 20pF, it offers good performance for its class.

 

This component is noted for being inexpensive and easy to work with, making it a practical selection for general-purpose switching tasks. Designers should be mindful of the 1A continuous collector current limit to prevent device damage. The operating junction temperature can reach a maximum of 150°C.

BC638 Quick Information

Product Type: PNP Transistor
Canonical Name: BC638 PNP Transistor
Subcategory: Bipolar (BJT) - Single, Pre-Biased

BC638 Compliance

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

BC638 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

BC638 Features

  • PNP bipolar junction transistor
  • Maximum collector-emitter voltage -60V
  • Continuous collector current 1A
  • 1W maximum power dissipation
  • TO-92 package

BC638 Applications

  • Moderately high voltage switching
  • Pre-amplifier stages
  • Mid-amplifier stages
  • Power amplifier circuits

BC638 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage for the BC638 transistor?

-60V

What is the continuous collector current rating of the BC638 transistor?

1A

What is the maximum power dissipation for the BC638 transistor?

1W

What is the maximum DC current gain (hFE) of the BC638 transistor?

160

What is the package type for the BC638 transistor?

TO-92

What is the maximum operating junction temperature for the BC638 transistor?

150°C

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