Bipolar Transistors - BJT

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	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	Series	Packaging
Bipolar Transistors - BJT BJT, TO-92, 25V, 800mA, NPN BC338-25 Diotec Semiconductor 1: $0.17 8,915In Stock	Mfr. Part No. BC338-25 Mouser Part No 637-BC338-25	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 25V, 800mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	8,915In Stock	$0.17 $0.109 $0.068 $0.049 Reel $0.037 View $0.038 $0.031 $0.023	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
Bipolar Transistors - BJT BJT, TO-92, 25V, 800mA, NPN BC338-40 Diotec Semiconductor 1: $0.18 8,987In Stock	Mfr. Part No. BC338-40 Mouser Part No 637-BC338-40	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 25V, 800mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	8,987In Stock	$0.18 $0.125 $0.105 $0.084 Reel $0.047 View $0.073 $0.031 $0.022	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
Bipolar Transistors - BJT BJT, TO-92, 65V, 100mA, NPN BC546A Diotec Semiconductor 1: $0.16 9,164In Stock	Mfr. Part No. BC546A Mouser Part No 637-BC546A	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 65V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	9,164In Stock	$0.16 $0.104 $0.065 $0.047 Reel $0.038 View $0.044 $0.029 $0.022	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
Bipolar Transistors - BJT BJT, TO-92, 65V, 100mA, NPN BC546B Diotec Semiconductor 1: $0.14 18,811In Stock	Mfr. Part No. BC546B Mouser Part No 637-BC546B	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 65V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	18,811In Stock	$0.14 $0.101 $0.085 $0.068 Reel $0.045 View $0.059 $0.029 $0.028 $0.024	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
Bipolar Transistors - BJT BJT, TO-92BK, 65V, 100mA, NPN BC546BBK Diotec Semiconductor 1: $0.16 5,883In Stock	Mfr. Part No. BC546BBK Mouser Part No 637-BC546BBK	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92BK, 65V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	5,883In Stock	$0.16 $0.104 $0.065 $0.047 View $0.037 $0.036 $0.026 $0.025 $0.022	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
Bipolar Transistors - BJT BJT, TO-92, 65V, 100mA, NPN BC546C Diotec Semiconductor 1: $0.16 10,298In Stock	Mfr. Part No. BC546C Mouser Part No 637-BC546C	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 65V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	10,298In Stock	$0.16 $0.104 $0.065 $0.047 Reel $0.036 View $0.037 $0.029 $0.022	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
Bipolar Transistors - BJT BJT, TO-92, 45V, 100mA, NPN BC547B Diotec Semiconductor 1: $0.13 31,003In Stock	Mfr. Part No. BC547B Mouser Part No 637-BC547B	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 45V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	31,003In Stock	$0.13 $0.081 $0.055 $0.04 Reel $0.026 View $0.031 $0.02 $0.018 $0.016	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
Bipolar Transistors - BJT BJT, TO-92BK, 45V, 100mA, NPN BC547BBK Diotec Semiconductor 1: $0.13 21,254In Stock	Mfr. Part No. BC547BBK Mouser Part No 637-BC547BBK	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92BK, 45V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	21,254In Stock	$0.13 $0.081 $0.055 $0.04 View $0.031 $0.03 $0.025 $0.022 $0.018	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
Bipolar Transistors - BJT BJT, TO-92, 45V, 100mA, NPN BC547C Diotec Semiconductor 1: $0.13 3,124In Stock 20,000Expected 23/10/2026	Mfr. Part No. BC547C Mouser Part No 637-BC547C	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 45V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	3,124In Stock 20,000Expected 23/10/2026	$0.13 $0.081 $0.055 $0.04 Reel $0.026 View $0.031 $0.02 $0.018	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
Bipolar Transistors - BJT BJT, TO-92BK, 45V, 100mA, NPN BC547CBK Diotec Semiconductor 1: $0.13 3,743In Stock	Mfr. Part No. BC547CBK Mouser Part No 637-BC547CBK	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92BK, 45V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	3,743In Stock	$0.13 $0.081 $0.055 $0.04 View $0.031 $0.025 $0.021 $0.02 $0.018	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
Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, NPN BC548B Diotec Semiconductor 1: $0.13 7,922In Stock 4,000Expected 20/11/2026	Mfr. Part No. BC548B Mouser Part No 637-BC548B	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	7,922In Stock 4,000Expected 20/11/2026	$0.13 $0.081 $0.055 $0.04 Reel $0.03 View $0.031 $0.023 $0.018	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
Bipolar Transistors - BJT BJT, TO-92BK, 30V, 100mA, NPN BC548BBK Diotec Semiconductor 1: $0.13 8,881In Stock	Mfr. Part No. BC548BBK Mouser Part No 637-BC548BBK	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92BK, 30V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	8,881In Stock	$0.13 $0.081 $0.055 $0.04 View $0.031 $0.03 $0.021 $0.02 $0.017	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
Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, NPN BC548C Diotec Semiconductor 1: $0.13 6,754In Stock 4,000Expected 02/10/2026	Mfr. Part No. BC548C Mouser Part No 637-BC548C	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	6,754In Stock 4,000Expected 02/10/2026	$0.13 $0.081 $0.055 $0.04 Reel $0.026 View $0.031 $0.02 $0.018	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
Bipolar Transistors - BJT BJT, TO-92BK, 30V, 100mA, NPN BC548CBK Diotec Semiconductor 1: $0.13 11,518In Stock	Mfr. Part No. BC548CBK Mouser Part No 637-BC548CBK	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92BK, 30V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	11,518In Stock	$0.13 $0.081 $0.055 $0.04 View $0.031 $0.03 $0.025 $0.022 $0.018	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
Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, NPN BC549A Diotec Semiconductor 1: $0.10 8,183In Stock	Mfr. Part No. BC549A Mouser Part No 637-BC549A	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	8,183In Stock	$0.10 $0.027 $0.024 $0.023 Reel $0.021 View $0.022 $0.017	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
Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, NPN BC549C Diotec Semiconductor 1: $0.13 10,821In Stock	Mfr. Part No. BC549C Mouser Part No 637-BC549C	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	10,821In Stock	$0.13 $0.081 $0.055 $0.04 Reel $0.026 View $0.031 $0.023 $0.018	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
Bipolar Transistors - BJT BJT, TO-92BK, 65V, 100mA, PNP BC556BBK Diotec Semiconductor 1: $0.17 21,792In Stock	Mfr. Part No. BC556BBK Mouser Part No 637-BC556BBK	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92BK, 65V, 100mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	21,792In Stock	$0.17 $0.143 $0.076 $0.062 View $0.051 $0.042 $0.031 $0.024 $0.015	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
Bipolar Transistors - BJT BJT, TO-92BK, 45V, 100mA, PNP BC557BBK Diotec Semiconductor 1: $0.14 28,424In Stock	Mfr. Part No. BC557BBK Mouser Part No 637-BC557BBK	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92BK, 45V, 100mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	28,424In Stock	$0.14 $0.088 $0.055 $0.04 View $0.031 $0.03 $0.025 $0.018	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
Bipolar Transistors - BJT BJT, TO-92, 45V, 100mA, PNP BC557C Diotec Semiconductor 1: $0.14 7,027In Stock 8,000Expected 25/09/2026	Mfr. Part No. BC557C Mouser Part No 637-BC557C	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 45V, 100mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	7,027In Stock 8,000Expected 25/09/2026	$0.14 $0.088 $0.055 $0.04 Reel $0.026 View $0.031 $0.02 $0.018	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
Bipolar Transistors - BJT BJT, TO-92BK, 45V, 100mA, PNP BC557CBK Diotec Semiconductor 1: $0.14 2,509In Stock	Mfr. Part No. BC557CBK Mouser Part No 637-BC557CBK	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92BK, 45V, 100mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	2,509In Stock	$0.14 $0.088 $0.055 $0.04 View $0.031 $0.025 $0.022 $0.021 $0.018	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
Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, PNP BC558A Diotec Semiconductor 1: $0.14 11,750In Stock	Mfr. Part No. BC558A Mouser Part No 637-BC558A	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	11,750In Stock	$0.14 $0.088 $0.055 $0.04 Reel $0.03 View $0.031 $0.025 $0.018	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
Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, PNP BC558C Diotec Semiconductor 1: $0.14 11,336In Stock	Mfr. Part No. BC558C Mouser Part No 637-BC558C	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	11,336In Stock	$0.14 $0.088 $0.055 $0.04 Reel $0.032 View $0.037 $0.025 $0.018	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
Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, PNP BC559A Diotec Semiconductor 1: $0.17 8,863In Stock	Mfr. Part No. BC559A Mouser Part No 637-BC559A	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	8,863In Stock	$0.17 $0.143 $0.076 $0.062 Reel $0.018 View $0.051 $0.015	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
Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, PNP BC559B Diotec Semiconductor 1: $0.14 10,122In Stock	Mfr. Part No. BC559B Mouser Part No 637-BC559B	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	10,122In Stock	$0.14 $0.088 $0.055 $0.04 Reel $0.03 View $0.031 $0.025 $0.018	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
Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, PNP BC559C Diotec Semiconductor 1: $0.14 9,711In Stock	Mfr. Part No. BC559C Mouser Part No 637-BC559C	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 30V, 100mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	9,711In Stock	$0.14 $0.088 $0.055 $0.04 Reel $0.026 View $0.031 $0.025 $0.018	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

BCx Bipolar Transistors

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BC327
BC328
BC337
BC338
BC484
BC487
BC546
BC547
BC548
BC549
BC556
BC557
BC558
BC559
BC807
BC808
BC817
BC818
BC84
BC846