BCx Bipolar Transistors

Diotec Semiconductor BCx Bipolar Transistors are general-purpose NPN transistors. These transistors include general-purpose Si-Epitaxial planar transistors (BCx) as well. The BCx bipolar transistors are arranged into three groups based on current gains. The BCx transistors feature up to 1.3W power dissipation, are available in multiple package types, and are compliant with RoHS, REACH, and conflict minerals. Typical applications include switching, signal processing, and commercial-grade applications.

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Description Datasheet Availability Pricing (JPY) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Technology
Mounting Style
Package / Case
Transistor Polarity
Configuration
Maximum DC Collector Current
Collector- Emitter Voltage VCEO Max
Collector- Base Voltage VCBO
Emitter- Base Voltage VEBO
Collector-Emitter Saturation Voltage
Pd - Power Dissipation
Gain Bandwidth Product fT
Minimum Operating Temperature
Maximum Operating Temperature
Qualification
Series
Packaging
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92, 25V, 800mA, NPN
Datasheet
8,987In Stock
Min.: 1
Mult.: 1
: 4,000

Through Hole TO-92 NPN Single 800 mA 25 V 5 V 700 mV 625 mW 100 MHz - 55 C + 150 C BC338 Ammo Pack
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92, 65V, 100mA, NPN
Datasheet
9,164In Stock
Min.: 1
Mult.: 1
: 4,000

Si Through Hole TO-92 NPN Single 100 mA 65 V 5 V 600 mV 500 mW 300 MHz - 55 C + 150 C BC546 Ammo Pack
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92, 65V, 100mA, NPN
Datasheet
18,983In Stock
Min.: 1
Mult.: 1
: 4,000

Si Through Hole TO-92 NPN Single 100 mA 65 V 5 V 600 mV 500 mW 300 MHz - 55 C + 150 C BC546 Ammo Pack
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92BK, 65V, 100mA, NPN
Datasheet
5,883In Stock
Min.: 1
Mult.: 1

Si Through Hole TO-92BK NPN Single 100 mA 65 V 80 V 5 V 600 mV 500 mW 300 MHz - 55 C + 150 C BC546 Bulk
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92, 65V, 100mA, NPN
Datasheet
10,298In Stock
Min.: 1
Mult.: 1
: 4,000

Si Through Hole TO-92 NPN Single 100 mA 65 V 5 V 600 mV 500 mW 300 MHz - 55 C + 150 C BC546 Ammo Pack
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92, 45V, 100mA, NPN
Datasheet
31,013In Stock
Min.: 1
Mult.: 1
: 4,000

Si Through Hole TO-92 NPN Single 100 mA 45 V 5 V 600 mV 500 mW 300 MHz - 55 C + 150 C BC547 Ammo Pack
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92BK, 45V, 100mA, NPN
Datasheet
21,254In Stock
Min.: 1
Mult.: 1

Si Through Hole TO-92BK NPN Single 100 mA 45 V 50 V 5 V 600 mV 500 mW 300 MHz - 55 C + 150 C BC547 Bulk
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92, 45V, 100mA, NPN
Datasheet
3,249In Stock
20,000Expected 10/23/2026
Min.: 1
Mult.: 1
: 4,000

Si Through Hole TO-92 NPN Single 100 mA 45 V 5 V 600 mV 500 mW 300 MHz - 55 C + 150 C BC547 Ammo Pack
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92BK, 45V, 100mA, NPN
Datasheet
3,746In Stock
Min.: 1
Mult.: 1

Si Through Hole TO-92BK NPN Single 100 mA 45 V 50 V 5 V 600 mV 500 mW 300 MHz - 55 C + 150 C BC547 Bulk
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, NPN
Datasheet
7,922In Stock
4,000Expected 11/2/2026
Min.: 1
Mult.: 1
: 4,000

Si Through Hole TO-92 NPN Single 100 mA 30 V 5 V 600 mV 500 mW 300 MHz - 55 C + 150 C BC548 Ammo Pack
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92BK, 30V, 100mA, NPN
Datasheet
8,881In Stock
Min.: 1
Mult.: 1

Si Through Hole TO-92BK NPN Single 100 mA 30 V 30 V 5 V 600 mV 500 mW 300 MHz - 55 C + 150 C BC548 Bulk
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, NPN
Datasheet
6,754In Stock
4,000Expected 10/2/2026
Min.: 1
Mult.: 1
: 4,000

Si Through Hole TO-92 NPN Single 100 mA 30 V 5 V 600 mV 500 mW 300 MHz - 55 C + 150 C BC548 Ammo Pack
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92BK, 30V, 100mA, NPN
Datasheet
11,518In Stock
Min.: 1
Mult.: 1

Si Through Hole TO-92BK NPN Single 100 mA 30 V 30 V 5 V 600 mV 500 mW 300 MHz - 55 C + 150 C BC548 Bulk
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, NPN
Datasheet
8,183In Stock
Min.: 1
Mult.: 1
: 4,000

Si Through Hole TO-92 NPN Single 100 mA 30 V 5 V 600 mV 500 mW 300 MHz - 55 C + 150 C BC549 Ammo Pack
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, NPN
Datasheet
10,821In Stock
Min.: 1
Mult.: 1
: 4,000

Si Through Hole TO-92 NPN Single 100 mA 30 V 5 V 600 mV 500 mW 300 MHz - 55 C + 150 C BC549 Ammo Pack
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92BK, 65V, 100mA, PNP
Datasheet
21,792In Stock
Min.: 1
Mult.: 1

Through Hole TO-92BK PNP Single 100 mA 65 V 80 V 5 V 250 mV 500 mW 150 MHz - 55 C + 150 C BC556 Bulk
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92BK, 45V, 100mA, PNP
Datasheet
28,424In Stock
Min.: 1
Mult.: 1

Through Hole TO-92BK PNP Single 100 mA 45 V 50 V 5 V 250 mV 500 mW 150 MHz - 55 C + 150 C BC557 Bulk
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92, 45V, 100mA, PNP
Datasheet
7,162In Stock
8,000Expected 9/25/2026
Min.: 1
Mult.: 1
: 4,000

Through Hole TO-92 PNP Single 100 mA 45 V 50 V 5 V 250 mV 500 mW 150 MHz - 55 C + 150 C BC557 Ammo Pack
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92BK, 45V, 100mA, PNP
Datasheet
2,509In Stock
Min.: 1
Mult.: 1

Through Hole TO-92BK PNP Single 100 mA 45 V 50 V 5 V 650 mV 500 mW 150 MHz - 55 C + 150 C BC557 Bulk
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, PNP
Datasheet
11,750In Stock
Min.: 1
Mult.: 1
: 4,000

Through Hole TO-92 PNP Single 100 mA 30 V 30 V 5 V 250 mV 500 mW 150 MHz - 55 C + 150 C BC558 Ammo Pack
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, PNP
Datasheet
11,336In Stock
Min.: 1
Mult.: 1
: 4,000

Through Hole TO-92 PNP Single 100 mA 30 V 30 V 5 V 250 mV 500 mW 150 MHz - 55 C + 150 C BC558 Ammo Pack
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, PNP
Datasheet
8,863In Stock
Min.: 1
Mult.: 1
: 4,000

Through Hole TO-92 PNP Single 100 mA 30 V 30 V 5 V 250 mV 500 mW 150 MHz - 55 C + 150 C BC559 Ammo Pack
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, PNP
Datasheet
10,132In Stock
Min.: 1
Mult.: 1
: 4,000

Through Hole TO-92 PNP Single 100 mA 30 V 30 V 5 V 250 mV 500 mW 150 MHz - 55 C + 150 C BC559 Ammo Pack
Diotec Semiconductor Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, PNP
Datasheet
9,711In Stock
Min.: 1
Mult.: 1
: 4,000

Through Hole TO-92 PNP Single 100 mA 30 V 30 V 5 V 250 mV 500 mW 150 MHz - 55 C + 150 C BC559 Ammo Pack
Diotec Semiconductor Bipolar Transistors - BJT BJT, SOT-323, 45V, 500mA, PNP
Datasheet
18,158In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-323 PNP Single 500 mA 45 V 5 V 700 mV 225 mW 100 MHz - 55 C + 150 C BC807 Reel, Cut Tape, MouseReel