BC638 PNP epitaxial silicon transistor rated for 60V collector-emitter voltage and 1A continuous collector current in a TO-92 package. Suitable for switching and amplifier applications.
Mfr Part #:

BC638

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
PNP epitaxial silicon transistor rated for 60V collector-emitter voltage and 1A continuous collector current in a TO-92 package. Suitable for switching and amplifier applications.
Total Stock: 109 pcs
$ Price Range: $0.12 - $0.12

BC638 Available from 1 distributor

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BC638 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Base Current (Maximum)
Base-Emitter On Voltage - Maximum
Collector Current - Continuous - Maximum
Collector Emitter Voltage (Maximum)
Collector-Emitter Breakdown Voltage (Minimum)
Current
Current Gain Bandwidth Product - Minimum
DC Current Gain (hFE) (Min) @ Ic, Vce
DC Current Gain - Minimum @ Ic=500mA
DC Current Gain - Minimum @ Ic=5mA
Dissipation Derate Above 25°C
Emitter-Base Voltage (Vebo) (Maximum)
Frequency
Halogen Free
Lead Style
Mounting Type
Operating Temperature
Operating Temperature - Junction
Peak Collector Current - Maximum
Power
Power Dissipation (Maximum)
Standard Package Quantity
Storage Temperature
Storage Temperature Range
Supplier Device Package
Tape & Reel
Thermal Resistance Junction-to-Ambient
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage

BC638 Description

Short technical summary and product information.

The BC638 is a PNP epitaxial silicon transistor from On Semiconductor, designed for general-purpose switching and amplifier applications. It features a maximum collector-emitter voltage of 60V and a continuous collector current rating of 1A, with a peak current capability of 1.5A. The device offers a DC current gain (hFE) ranging from 40 to 160 at 150mA, ensuring consistent performance in linear amplification circuits.

 

Housed in a TO-92-3 (TO-226) through-hole package with bent leads, the BC638 is easy to integrate into PCB designs. The transistor has a power dissipation of 1W at 25°C ambient temperature, with a derating factor of 8 mW/°C above that. Its junction temperature range is -55°C to 150°C, making it suitable for a wide range of operating environments.

 

As a complementary PNP to the NPN BC637, the BC638 can be used in push-pull configurations. The device is RoHS compliant, Pb-Free, and Halogen-Free, meeting modern environmental standards. Typical applications include driver stages, output stages, and signal amplification in consumer electronics, industrial controls, and automotive systems.

BC638 Quick Information

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

BC638 Compliance

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

BC638 Estimated Pricing

Qty Low High
2,597+ $0.12 $0.12
15,000+ $0.12 $0.12

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

BC638 Features

  • PNP epitaxial silicon transistor.
  • Rated for 60V collector-emitter voltage.
  • Continuous collector current up to 1A.
  • Housed in a TO-92 through-hole package.
  • RoHS compliant and Pb-Free.

BC638 Applications

  • Used in switching and amplifier circuits.
  • Suitable for general-purpose signal amplification.
  • Ideal for driver stages in consumer electronics.
  • Complementary to BC637 NPN for push-pull.

BC638 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage (VCEO) of the BC638?

60 V.

What package is the BC638 available in?

TO-226-3, TO-92-3 Long Body, TO-92-3 (CASE 135AR) with bent leads.

What is the operating temperature range?

Junction temperature range -55°C to 150°C.

Is the BC638 RoHS compliant?

Yes, it is RoHS compliant, Pb-Free, and Halogen-Free.

What is the maximum collector current?

1 A continuous, 1.5 A peak.

What is the DC current gain (hFE) range?

40 to 160 at VCE=-2V, IC=-150mA.

What is the complementary NPN transistor to the BC638?

BC637.

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