BC557C BC557C is a PNP bipolar junction transistor from On Semiconductor rated for 45V collector-emitter voltage and 100mA collector current. It offers a 320MHz transition frequency and comes in a TO-92 through-hole package.
Mfr Part #:

BC557C

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
BC557C is a PNP bipolar junction transistor from On Semiconductor rated for 45V collector-emitter voltage and 100mA collector current. It offers a 320MHz transition frequency and comes in a TO-92 through-hole package.
Total Stock: 2,333 pcs
$ Price Range: $0.02 - $0.13

BC557C Available from 1 distributor

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2,333 pcs
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BC557C Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Frequency
Lead Style
Mounting Type
Operating Temperature
Power
Storage Temperature
Supplier Device Package
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage

BC557C Description

Short technical summary and product information.

The BC557C is a PNP bipolar junction transistor manufactured by On Semiconductor, designed for general-purpose amplification and switching applications. It supports a maximum collector-emitter voltage of 45V and a maximum collector current of 100mA, with a power dissipation rating of 625mW. The device features a minimum DC current gain (hFE) of 420 at Ic=2mA and Vce=5V, and a maximum collector-emitter saturation voltage of 650mV at Ib=5mA and Ic=100mA.

 

With a transition frequency of 320MHz, this transistor is suitable for low-frequency to medium-frequency signal amplification and switching circuits. The operating junction temperature range spans from -55°C to 150°C, allowing use in a wide variety of environments.

 

The BC557C is housed in a TO-226-3 / TO-92-3 long body package with through-hole mounting, making it easy to integrate into PCB designs. The supplier device package is TO-92 (TO-226). This component is commonly used in audio preamplifiers, signal processing, and low-power switching circuits where PNP polarity is required.

BC557C Quick Information

Product Type: Bipolar Junction Transistor (BJT)
Series: BC557
Canonical Name: PNP Bipolar Junction Transistor
Subcategory: Single PNP Transistor

BC557C Compliance

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

BC557C Estimated Pricing

Qty Low High
1+ $0.13 $0.13
10+ $0.08 $0.08
100+ $0.06 $0.06
500+ $0.04 $0.04
1,000+ $0.03 $0.03
4,000+ $0.03 $0.03
8,000+ $0.02 $0.02
24,000+ $0.02 $0.02

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

BC557C Features

  • PNP bipolar junction transistor design.
  • 45V collector-emitter voltage rating.
  • 100mA maximum collector current.
  • 320MHz transition frequency capability.
  • TO-92 through-hole package mounting.

BC557C Applications

  • Suitable for audio signal amplification.
  • Used in low-power switching circuits.
  • Ideal for general-purpose signal processing.
  • Works in analog driver applications.

BC557C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage of the BC557C?

The maximum collector-emitter voltage (Vce) is 45V.

What is the maximum collector current of the BC557C?

The maximum collector current (Ic) is 100mA.

What is the package type of the BC557C?

The BC557C is available in a TO-226-3 / TO-92-3 long body package with through-hole mounting. The supplier device package is TO-92 (TO-226).

What is the operating temperature range of the BC557C?

The operating junction temperature range is -55°C to 150°C.

What is the DC current gain (hFE) of the BC557C?

The minimum DC current gain (hFE) is 420 at Ic=2mA and Vce=5V.

What is the transition frequency of the BC557C?

The transition frequency is 320MHz.

What is the power dissipation rating of the BC557C?

The maximum power dissipation is 625mW.

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