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 (JPY) 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	Qualification	Series	Packaging
Bipolar Transistors - BJT BJT, TO-92BK, 65V, 100mA, NPN BC546ABK Diotec Semiconductor 1: ¥26.6 2,326In Stock	Mfr. Part # BC546ABK Mouser Part # 637-BC546ABK	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92BK, 65V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	2,326In Stock	¥26.6 ¥17.9 ¥14.9 ¥12 View ¥10.5 ¥3.8 ¥3.3 ¥3 ¥2.8	Min.: 1 Mult.: 1	Si	Through Hole	TO-92BK	NPN	Single	100 mA	65 V		5 V	600 mV	500 mW	300 MHz	- 55 C	+ 150 C		BC546	Bulk
Bipolar Transistors - BJT BJT, SOT-323, 30V, 100mA, PNP BC858AW Diotec Semiconductor 1: ¥31.6 2,590In Stock	Mfr. Part # BC858AW Mouser Part # 637-BC858AW	Diotec Semiconductor	Bipolar Transistors - BJT BJT, SOT-323, 30V, 100mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	2,590In Stock	Cut Tape ¥31.6 ¥21.3 ¥17.8 ¥14.3 ¥10.1 Reel ¥3.3 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	SOT-323	PNP	Single	100 mA	30 V	30 V	5 V	650 mV	200 mW	100 MHz	- 55 C	+ 150 C		BC858	Reel, Cut Tape, MouseReel
Bipolar Transistors - BJT BJT, SOT-223, 80V, 1000mA, PNP BCP53-6 Diotec Semiconductor 1: ¥93 6,458In Stock 4,000Expected 1/1/2027	Mfr. Part # BCP53-6 Mouser Part # 637-BCP53-6	Diotec Semiconductor	Bipolar Transistors - BJT BJT, SOT-223, 80V, 1000mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	6,458In Stock 4,000Expected 1/1/2027	Cut Tape ¥93 ¥65.6 ¥47.8 Reel ¥27.6 ¥17.6 View ¥17.3 ¥15.3 MouseReel Available	Min.: 1 Mult.: 1 : 4,000		SMD/SMT	SOT-223	PNP	Single	1 A	80 V	100 V	5 V	500 mV	2 W	120 MHz	- 55 C	+ 150 C		BCP5	Reel, Cut Tape, MouseReel
Bipolar Transistors - BJT BJT, SOT-23, 30V, 100mA, PNP, AEC-Q101 BC859B-AQ Diotec Semiconductor 1: ¥23.3 2,742In Stock	Mfr. Part # BC859B-AQ Mouser Part # 637-BC859B-AQ	Diotec Semiconductor	Bipolar Transistors - BJT BJT, SOT-23, 30V, 100mA, PNP, AEC-Q101 Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	2,742In Stock	Cut Tape ¥23.3 ¥15.4 ¥13 ¥10.5 Reel ¥2.5 View ¥7.6 ¥2.3 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	SOT-23	PNP	Single	100 mA	30 V	30 V	5 V	650 mV	250 mW	100 MHz	- 55 C	+ 150 C	AEC-Q101	BC859	Reel, Cut Tape, MouseReel
Bipolar Transistors - BJT BJT, SOT-223, 80V, 1000mA, NPN BCP56-6 Diotec Semiconductor 1: ¥93 3,756In Stock 8,000On Order	Mfr. Part # BCP56-6 Mouser Part # 637-BCP56-6	Diotec Semiconductor	Bipolar Transistors - BJT BJT, SOT-223, 80V, 1000mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	3,756In Stock 8,000On Order On Order Ship Dates Mfr. #: BCP56-6 Stock: 3,756 Can Ship Immediately On Order: 4,000 Expected 11/10/2026 4,000 Expected 2/19/2027 Factory Lead-Time: 14 Weeks	Cut Tape ¥93 ¥65.6 ¥45.8 ¥40.2 Reel ¥15.4 View ¥37.4 ¥15.3 MouseReel Available	Min.: 1 Mult.: 1 : 4,000		SMD/SMT	SOT-223	NPN	Single	1 A	80 V	100 V	5 V	500 mV	2 W	100 MHz	- 55 C	+ 150 C		BCP5	Reel, Cut Tape, MouseReel
Bipolar Transistors - BJT BJT, SOT-23, 65V, 100mA, NPN, 0.25W, 150C BC846B-Q Diotec Semiconductor 1: ¥16.6 42,110In Stock New Product	Mfr. Part # BC846B-Q Mouser Part # 637-BC846B-Q New Product	Diotec Semiconductor	Bipolar Transistors - BJT BJT, SOT-23, 65V, 100mA, NPN, 0.25W, 150C Learn More about Diotec Semiconductor diotec bc846b q npn transistor	Datasheet	42,110In Stock	Cut Tape ¥16.6 ¥10.3 ¥8.6 ¥6.8 View ¥6 ¥4.5 ¥3 ¥2.8 ¥2.3	Min.: 1 Mult.: 1	Si	SMD/SMT	SOT-23-3	NPN	Single	100 mA	65 V	80 V	6 V	200 mV	250 mW	300 MHz	- 55 C	+ 150 C			Reel
Bipolar Transistors - BJT BJT, SOT-23, 45V, 500mA, NPN, 0.5W, 150C BC817K-40R13 Diotec Semiconductor 1: ¥28.2 9,935In Stock 20,000Expected 3/12/2027 New Product	Mfr. Part # BC817K-40R13 Mouser Part # 637-BC817K-40R13 New Product	Diotec Semiconductor	Bipolar Transistors - BJT BJT, SOT-23, 45V, 500mA, NPN, 0.5W, 150C Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	9,935In Stock 20,000Expected 3/12/2027	Cut Tape ¥28.2 ¥17.3 ¥10.8 ¥7.8 Reel ¥4 View ¥6.1 ¥5.1 ¥3.8 ¥3.5	Min.: 1 Mult.: 1 : 10,000	Si	SMD/SMT	SOT-23-3	NPN	Single	1 A	45 V	50 V	5 V	700 mV	500 mW	170 MHz		+ 150 C			Reel, Cut Tape
Bipolar Transistors - BJT BJT, SOT-363, 65V, 100mA, PNP, AEC-Q101 BC856S-AQ Diotec Semiconductor 1: ¥16.6 8,920In Stock	Mfr. Part # BC856S-AQ Mouser Part # 637-BC856S-AQ	Diotec Semiconductor	Bipolar Transistors - BJT BJT, SOT-363, 65V, 100mA, PNP, AEC-Q101 Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	8,920In Stock	Cut Tape ¥16.6 ¥8.3 ¥7.3 ¥7 Reel ¥6.6 View ¥6.8 ¥5.6 ¥5.5	Min.: 1 Mult.: 1 : 3,000	Si	SMD/SMT	SOT-363-6	PNP	Single	200 mA	65 V	80 V	5 V	650 mV	250 mW	100 MHz	- 55 C	+ 150 C	AEC-Q101	BCXXX	Reel, Cut Tape
Bipolar Transistors - BJT BJT, SOT-23, 65V, 100mA, NPN BC846B Diotec Semiconductor 1: ¥18.3 184,525In Stock	Mfr. Part # BC846B Mouser Part # 637-BC846B	Diotec Semiconductor	Bipolar Transistors - BJT BJT, SOT-23, 65V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	184,525In Stock	Cut Tape ¥18.3 ¥11.3 ¥7.3 ¥5.3 Reel ¥3.2 View ¥4.7 ¥2.7 ¥2.5 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	SOT-23	NPN	Single	100 mA	65 V	80 V	6 V	600 mV	250 mW	300 MHz	- 55 C	+ 150 C		BC846	Reel, Cut Tape, MouseReel
Bipolar Transistors - BJT BJT, SOT-23, 45V, 100mA, PNP BC857C Diotec Semiconductor 1: ¥21.6 151,686In Stock	Mfr. Part # BC857C Mouser Part # 637-BC857C	Diotec Semiconductor	Bipolar Transistors - BJT BJT, SOT-23, 45V, 100mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	151,686In Stock	Cut Tape ¥21.6 ¥13.1 ¥8.6 ¥8.5 Reel ¥3.7 View ¥7.3 ¥3 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	SOT-23	PNP	Single	100 mA	45 V	50 V	5 V	650 mV	250 mW	100 MHz	- 55 C	+ 150 C		BC857	Reel, Cut Tape, MouseReel
Bipolar Transistors - BJT BJT, SOT-223, 80V, 1000mA, NPN BCP56-16 Diotec Semiconductor 1: ¥88 21,632In Stock	Mfr. Part # BCP56-16 Mouser Part # 637-BCP56-16	Diotec Semiconductor	Bipolar Transistors - BJT BJT, SOT-223, 80V, 1000mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	21,632In Stock	Cut Tape ¥88 ¥56.6 ¥35.7 ¥26.7 Reel ¥19.1 View ¥21.4 ¥15.4 ¥12 MouseReel Available	Min.: 1 Mult.: 1 : 4,000		SMD/SMT	SOT-223	NPN	Single	1 A	80 V	100 V	5 V	500 mV	2 W	100 MHz	- 55 C	+ 150 C		BCP5	Reel, Cut Tape, MouseReel
Bipolar Transistors - BJT BJT, SOT-23, 45V, 800mA, NPN BC817-40 Diotec Semiconductor 1: ¥24.9 601,207In Stock 152,500On Order	Mfr. Part # BC817-40 Mouser Part # 637-BC817-40	Diotec Semiconductor	Bipolar Transistors - BJT BJT, SOT-23, 45V, 800mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	601,207In Stock 152,500On Order On Order Ship Dates Mfr. #: BC817-40 Stock: 601,207 Can Ship Immediately On Order: 144,000 Expected 11/2/2026 8,500 Expected 11/10/2026 Factory Lead-Time: 26 Weeks	Cut Tape ¥24.9 ¥13.8 ¥9.3 ¥6.8 Reel ¥4.2 View ¥6 ¥3.3 ¥3.2 ¥2.8 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	SOT-23	NPN	Single	800 mA	45 V		5 V	700 mV	310 mW	100 MHz	- 55 C	+ 150 C		BC817	Reel, Cut Tape, MouseReel
Bipolar Transistors - BJT BJT, SOT-23, 45V, 100mA, NPN BC847B Diotec Semiconductor 1: ¥16.6 216,494In Stock	Mfr. Part # BC847B Mouser Part # 637-BC847B	Diotec Semiconductor	Bipolar Transistors - BJT BJT, SOT-23, 45V, 100mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	216,494In Stock	Cut Tape ¥16.6 ¥11.3 ¥9.5 ¥7.5 Reel ¥4.8 View ¥6.6 ¥3.2 ¥3 ¥2.7 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	SOT-23	NPN	Single	100 mA	45 V	50 V	5 V, 6 V	600 mV	250 mW	300 MHz	- 55 C	+ 150 C		BC847	Reel, Cut Tape, MouseReel
Bipolar Transistors - BJT BJT, SOT-23, 45V, 100mA, PNP BC857B Diotec Semiconductor 1: ¥19.9 333,280In Stock 42,000On Order	Mfr. Part # BC857B Mouser Part # 637-BC857B	Diotec Semiconductor	Bipolar Transistors - BJT BJT, SOT-23, 45V, 100mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	333,280In Stock 42,000On Order	Cut Tape ¥19.9 ¥11.3 ¥7.8 ¥5.6 Reel ¥3.3 View ¥4.8 ¥2.7 ¥2.5 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	SOT-23	PNP	Single	100 mA	45 V	50 V	5 V	650 mV	250 mW	100 MHz	- 55 C	+ 150 C		BC857	Reel, Cut Tape, MouseReel
Bipolar Transistors - BJT BJT, TO-92, 45V, 800mA, PNP BC327-16 Diotec Semiconductor 1: ¥33.2 9,594In Stock	Mfr. Part # BC327-16 Mouser Part # 637-BC327-16	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 45V, 800mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	9,594In Stock	¥33.2 ¥20.9 ¥13.1 ¥9.5 Reel ¥6.1 View ¥7.3 ¥5.1 ¥3.8	Min.: 1 Mult.: 1 : 4,000		Through Hole	TO-92	PNP	Single	800 mA	45 V		5 V	700 mV	625 mW	100 MHz	- 55 C	+ 150 C		BC327	Ammo Pack
Bipolar Transistors - BJT BJT, TO-92, 45V, 800mA, PNP BC327-25 Diotec Semiconductor 1: ¥29.9 17,463In Stock	Mfr. Part # BC327-25 Mouser Part # 637-BC327-25	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 45V, 800mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	17,463In Stock	¥29.9 ¥18.1 ¥11.3 ¥8.1 Reel ¥5.5 View ¥6.3 ¥5.1 ¥3.8	Min.: 1 Mult.: 1 : 4,000		Through Hole	TO-92	PNP	Single	800 mA	45 V		5 V	700 mV	625 mW	100 MHz	- 55 C	+ 150 C		BC327	Ammo Pack
Bipolar Transistors - BJT BJT, TO-92BK, 45V, 800mA, PNP BC327-25BK Diotec Semiconductor 1: ¥29.9 7,400In Stock	Mfr. Part # BC327-25BK Mouser Part # 637-BC327-25BK	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92BK, 45V, 800mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	7,400In Stock	¥29.9 ¥18.1 ¥11.3 ¥8.1 View ¥6.3 ¥6.1 ¥4.3 ¥4.2 ¥3.8	Min.: 1 Mult.: 1		Through Hole	TO-92BK	PNP	Single	800 mA	45 V		5 V	700 mV	625 mW	100 MHz	- 55 C	+ 150 C		BC327	Bulk
Bipolar Transistors - BJT BJT, TO-92, 45V, 800mA, PNP BC327-40 Diotec Semiconductor 1: ¥33.2 21,618In Stock	Mfr. Part # BC327-40 Mouser Part # 637-BC327-40	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 45V, 800mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	21,618In Stock	¥33.2 ¥20.9 ¥13.1 ¥9.5 Reel ¥6.1 View ¥7.3 ¥5.1 ¥3.8	Min.: 1 Mult.: 1 : 4,000		Through Hole	TO-92	PNP	Single	800 mA	45 V		5 V	700 mV	625 mW	100 MHz	- 55 C	+ 150 C		BC327	Ammo Pack
Bipolar Transistors - BJT BJT, TO-92, 25V, 800mA, PNP BC328-16 Diotec Semiconductor 1: ¥29.9 11,083In Stock	Mfr. Part # BC328-16 Mouser Part # 637-BC328-16	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 25V, 800mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	11,083In Stock	¥29.9 ¥18.1 ¥11.3 ¥8.1 Reel ¥6.1 View ¥6.3 ¥5.1 ¥3.8	Min.: 1 Mult.: 1 : 4,000		Through Hole	TO-92	PNP	Single	800 mA	25 V		5 V	700 mV	625 mW	100 MHz	- 55 C	+ 150 C		BC328	Ammo Pack
Bipolar Transistors - BJT BJT, TO-92, 25V, 800mA, PNP BC328-40 Diotec Semiconductor 1: ¥26.6 10,131In Stock	Mfr. Part # BC328-40 Mouser Part # 637-BC328-40	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 25V, 800mA, PNP Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	10,131In Stock	¥26.6 ¥18.1 ¥11.3 ¥8.1 Reel ¥6.1 View ¥6.3 ¥5.1 ¥3.8	Min.: 1 Mult.: 1 : 4,000		Through Hole	TO-92	PNP	Single	800 mA	25 V		5 V	700 mV	625 mW	100 MHz	- 55 C	+ 150 C		BC328	Ammo Pack
Bipolar Transistors - BJT BJT, TO-92, 45V, 800mA, NPN BC337-16 Diotec Semiconductor 1: ¥29.9 8,409In Stock	Mfr. Part # BC337-16 Mouser Part # 637-BC337-16	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 45V, 800mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	8,409In Stock	¥29.9 ¥18.1 ¥11.3 ¥8.1 Reel ¥5.5 View ¥6.3 ¥5.1 ¥3.8	Min.: 1 Mult.: 1 : 4,000		Through Hole	TO-92	NPN	Single	800 mA	45 V		5 V	700 mV	625 mW	100 MHz	- 55 C	+ 150 C		BC337	Ammo Pack
Bipolar Transistors - BJT BJT, TO-92BK, 45V, 800mA, NPN BC337-16BK Diotec Semiconductor 1: ¥26.6 2,340In Stock	Mfr. Part # BC337-16BK Mouser Part # 637-BC337-16BK	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92BK, 45V, 800mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	2,340In Stock	¥26.6 ¥18.1 ¥11.3 ¥8.1 View ¥6.3 ¥5.3 ¥4.7 ¥3.8	Min.: 1 Mult.: 1		Through Hole	TO-92BK	NPN	Single	800 mA	45 V		5 V	700 mV	625 mW	100 MHz	- 55 C	+ 150 C		BC337	Bulk
Bipolar Transistors - BJT BJT, TO-92, 45V, 800mA, NPN BC337-25 Diotec Semiconductor 1: ¥29.9 22,606In Stock	Mfr. Part # BC337-25 Mouser Part # 637-BC337-25	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92, 45V, 800mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	22,606In Stock	¥29.9 ¥18.1 ¥11.3 ¥8.1 Reel ¥5.5 View ¥6.3 ¥4.3 ¥3.8	Min.: 1 Mult.: 1 : 4,000		Through Hole	TO-92	NPN	Single	800 mA	45 V		5 V	700 mV	625 mW	100 MHz	- 55 C	+ 150 C		BC337	Ammo Pack
Bipolar Transistors - BJT BJT, TO-92BK, 45V, 800mA, NPN BC337-25BK Diotec Semiconductor 1: ¥29.9 7,156In Stock	Mfr. Part # BC337-25BK Mouser Part # 637-BC337-25BK	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92BK, 45V, 800mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	7,156In Stock	¥29.9 ¥18.1 ¥11.3 ¥8.1 View ¥6.3 ¥5.8 ¥4.7 ¥4.5 ¥3.8	Min.: 1 Mult.: 1		Through Hole	TO-92BK	NPN	Single	800 mA	45 V		5 V	700 mV	625 mW	100 MHz	- 55 C	+ 150 C		BC337	Bulk
Bipolar Transistors - BJT BJT, TO-92BK, 45V, 800mA, NPN BC337-40BK Diotec Semiconductor 1: ¥29.9 20,055In Stock	Mfr. Part # BC337-40BK Mouser Part # 637-BC337-40BK	Diotec Semiconductor	Bipolar Transistors - BJT BJT, TO-92BK, 45V, 800mA, NPN Learn More about Diotec Semiconductor diotec bcx bipolar transistors	Datasheet	20,055In Stock	¥29.9 ¥18.1 ¥11.3 ¥8.1 View ¥6.3 ¥5.3 ¥4.3 ¥3.8	Min.: 1 Mult.: 1		Through Hole	TO-92BK	NPN	Single	800 mA	45 V		5 V	700 mV	625 mW	100 MHz	- 55 C	+ 150 C		BC337	Bulk