BC556ATA BC556ATA is a PNP epitaxial silicon transistor rated for 65 V collector-emitter voltage and 100 mA collector current. Housed in a TO-92-3 through-hole package, it dissipates up to 500 mW.
Mfr Part #:

BC556ATA

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
BC556ATA is a PNP epitaxial silicon transistor rated for 65 V collector-emitter voltage and 100 mA collector current. Housed in a TO-92-3 through-hole package, it dissipates up to 500 mW.
Total Stock: 9,472 pcs
$ Price Range: $0.04 - $0.31

BC556ATA Available from 1 distributor

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BC556ATA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Collector Cut-off Current (ICBO)
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Frequency
Halogen Free
Lead Style
Mounting Type
Operating Temperature
Output Capacitance (Cob)
Power
SVHC Present
Storage Temperature
Supplier Device Package
Tape & Reel
Transistor Type
VBE(on) @ Ic, Vce
Vce Sat Max (Maximum @ Ib=0.5 mA, Ic=10 mA)
Vce Saturation (Max) @ Ib, Ic
Voltage

BC556ATA Description

Short technical summary and product information.

BC556ATA is a PNP epitaxial silicon bipolar junction transistor from onsemi. It is intended for switching and amplifier applications, with a maximum collector-emitter voltage of 65 V and a maximum collector current of 100 mA. The device provides a minimum DC current gain (hFE) of 110 at Ic=2 mA and Vce=5 V, and a transition frequency of 150 MHz.

 

The transistor has a maximum power dissipation of 500 mW at 25 °C ambient, derated at 4 mW/°C above 25 °C. The maximum VCE(sat) is 650 mV at Ib=5 mA and Ic=100 mA, and 300 mV at Ib=0.5 mA and Ic=10 mA. Collector cut-off current is 15 nA maximum, and output capacitance is typically 6 pF. The junction temperature can reach 150 °C.

 

The device comes in a through-hole TO-226-3 / TO-92-3 (TO-226AA) package with formed leads, also known as TO-92-3. It is Pb-free, halogen-free, and RoHS compliant, making it suitable for general-purpose low-power circuits in signal processing, switching, and amplification.

BC556ATA Quick Information

Product Type: Bipolar (BJT) Transistor
Series: BC556
Canonical Name: BC556ATA PNP Epitaxial Silicon Transistor
Subcategory: Single BJT Transistor

BC556ATA Compliance

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

BC556ATA Estimated Pricing

Qty Low High
1+ $0.31 $0.31
10+ $0.19 $0.19
100+ $0.12 $0.12
500+ $0.09 $0.09
1,000+ $0.08 $0.08
2,000+ $0.07 $0.07
4,000+ $0.06 $0.06
10,000+ $0.06 $0.06
24,000+ $0.04 $0.04

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

BC556ATA Features

  • PNP transistor in TO-92-3 package.
  • Rated at 65 V collector-emitter voltage.
  • Handles 100 mA collector current.
  • Dissipates up to 500 mW.
  • Device is Pb-free and RoHS compliant.

BC556ATA Applications

  • Suitable for low-power switching circuits.
  • Use in general-purpose amplifier stages.
  • Works in signal conditioning applications.

BC556ATA FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the BC556ATA?

The maximum collector-emitter breakdown voltage (VCEO) is 65 V. The maximum collector-base voltage (VCBO) is 80 V.

What package is the BC556ATA available in?

It comes in a through-hole TO-226-3 / TO-92-3 (TO-226AA) package with formed leads; the supplier device package is TO-92-3.

What is the operating temperature of the BC556ATA?

The junction operating temperature can reach up to 150 °C. The storage temperature range is -65 °C to +150 °C.

Is the BC556ATA RoHS compliant?

Yes, the BC556ATA is RoHS3 compliant, Pb-free, and halogen-free as stated in the datasheet.

What is the maximum collector current of the BC556ATA?

The maximum DC collector current is 100 mA, and the peak pulse collector current is 200 mA.

What is the power dissipation of the BC556ATA?

The maximum power dissipation is 500 mW at 25 °C ambient, with derating above 25 °C of 4 mW/°C.

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