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

TIP31C TRANS NPN 100V 3A TO220 STMicroelectronics	3,860 In Stock	1 : ¥5.75000 Tube	-	Tube	Active	NPN	3 A	100 V	1.2V @ 375mA, 3A	300µA	10 @ 3A, 4V	2 W	-	150°C (TJ)	Through Hole	TO-220-3	TO-220
BC817-25 TRANS NPN 45V 0.8A SOT23-3 Diotec Semiconductor	481 In Stock	1 : ¥0.99000 Cut Tape (CT) 3,000 : ¥0.16691 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	NPN	800 mA	45 V	700mV @ 50mA, 500mA	100nA (ICBO)	160 @ 100mA, 1V	310 mW	100MHz	-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.