Single Bipolar Transistors

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	Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Transistor Type	Current - Collector (Ic) (Max)	Voltage - Collector Emitter Breakdown (Max)	Vce Saturation (Max) @ Ib, Ic	Current - Collector Cutoff (Max)	DC Current Gain (hFE) (Min) @ Ic, Vce	Power - Max	Frequency - Transition	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
	MMBTA06LT1G TRANS NPN 80V 0.5A SOT23-3 onsemi	624,831 In Stock	1 : $0.22000 Cut Tape (CT) 3,000 : $0.04242 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	NPN	500 mA	80 V	250mV @ 10mA, 100mA	100nA	100 @ 100mA, 1V	225 mW	100MHz	-55°C ~ 150°C (TJ)	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3 (TO-236)
	NSS1C201LT1G TRANS NPN 100V 2A SOT23-3 onsemi	10,398 In Stock	1 : $1.02000 Cut Tape (CT) 3,000 : $0.23357 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	NPN	2 A	100 V	150mV @ 200mA, 2A	100nA (ICBO)	120 @ 500mA, 2V	490 mW	110MHz	-55°C ~ 150°C (TJ)	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3 (TO-236)

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Discrete Bipolar Junction Transistors (BJTs) are commonly used to construct analog signal amplification functions in audio, radio, and other applications. One of the first semiconductor devices to be mass produced, their characteristics are less favorable than those of other device types for applications involving high frequency switching and operation with high currents or voltages, but they remain a technology of choice for applications requiring analog signal reproduction with minimal added noise and distortion. BJTs come in two varieties - NPN and PNP - which refer to the sequence of semiconductor layers that make up the transistor. NPN transistors consist of a thin P-type semiconductor between two N-type materials, while PNP transistors have an N-type semiconductor between two P-types. This gives the two types opposite polarity operation. NPN transistors sink current, while PNP transistors source current.