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BC557BTA BC557BTA is a PNP epitaxial silicon transistor from onsemi. It features a collector-emitter voltage of 45V, collector current of 100mA, and is housed in a TO-92-3 package.
Mfr Part #:

BC557BTA

Available from 4 distributors
Mfr Name: On Semiconductor
On Semiconductor
BC557BTA is a PNP epitaxial silicon transistor from onsemi. It features a collector-emitter voltage of 45V, collector current of 100mA, and is housed in a TO-92-3 package.
✓ Total Stock: 168,996 pcs
$ Price Range: $0.05 - $0.28

BC557BTA Available from 4 distributors

✓ Authorised
✓ Non-Authorised
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

BC557BTA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Frequency
Halogen Free
Lead Style
Mounting Type
Noise Figure
Operating Temperature
Power
Supplier Device Package
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage
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BC557BTA Description

Short technical summary and product information.

The BC557BTA is a PNP epitaxial silicon bipolar transistor manufactured by onsemi. It is part of the BC556/557/558/559/560 series, designed for general-purpose switching and amplifier applications. Key electrical specifications include a collector-emitter voltage (VCEO) of -45V, a continuous collector current (IC) of -100mA, and a power dissipation of 500mW. The DC current gain (hFE) is a minimum of 200 at 5V, 2mA, and the transition frequency (fT) is 150MHz. The device features a low VCE saturation voltage of 650mV at 5mA base current and 100mA collector current. The TO-92-3 package is a through-hole mounting type with formed leads, suitable for easy integration into PCBs. The BC557BTA is complementary to the NPN BC547B transistor. It is lead-free, halogen-free, and RoHS compliant.

BC557BTA Quick Information

Product Type: PNP Epitaxial Silicon Transistor
Series: BC557B
Canonical Name: BC557BTA PNP Epitaxial Silicon Transistor
Subcategory: Single PNP

BC557BTA Compliance

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

BC557BTA Estimated Pricing

Qty Low High
1+ $0.28 $0.28
10+ $0.17 $0.17
100+ $0.11 $0.11
500+ $0.08 $0.08
1,000+ $0.07 $0.07
2,000+ $0.05 $0.05

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

BC557BTA Features

  • PNP epitaxial silicon bipolar transistor.
  • Collector-emitter voltage rating of 45V.
  • Continuous collector current of 100mA.
  • High DC current gain of 200 minimum.
  • TO-92-3 through-hole package.

BC557BTA Applications

  • Suitable for general-purpose switching circuits.
  • Ideal for low-power signal amplification.
  • Can be used in audio amplifier driver stages.
  • Complementary to NPN BC547B for push-pull stages.

BC557BTA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the collector-emitter voltage rating of BC557BTA?

The VCEO is -45V.

What is the package type of BC557BTA?

TO-92-3 (TO-226AA) through-hole package.

What is the operating junction temperature?

Maximum junction temperature is 150°C.

Is BC557BTA RoHS compliant?

Yes, it is RoHS compliant, Pb-free, and halogen-free.

What is the DC current gain (hFE) of BC557BTA?

Minimum 200 at Vce=5V, Ic=2mA.

What is the transition frequency (fT) of BC557BTA?

Typical 150MHz at Vce=5V, Ic=10mA, f=10MHz.

What is the collector current rating?

Maximum continuous collector current is -100mA.

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