Product Overview TIP121: Medium Power NPN Darlington Bipolar Power Transistor For complete documentation, see the data sheet Product Description The Darlington Bipolar Power Transistor is designed for general-purpose amplifier and low-speed switching applications. TIP120, TIP121, TIP122 (NPN); TIP125, TIP126, TIP127 (PNP) are complementary devices. Features • High DC Current Gain - hFE = 2500 (typ) @ IC = 4.0 Adc • Collector-Emitter Sustaining Voltage @ 100 mA VCEO(sus) = 60 Vdc (Min) TIP120, TIP125 VCEO(sus) = 80 Vdc (Min) TIP121, TIP126 VCEO(sus) = 100 Vdc (Min) TIP122, TIP127 • Low Collector-Emitter Saturation Voltage VCE(sat) = 2.0 Vdc (Max) @ IC= 3.0 Adc = 4.0 Vdc (Max) @ IC= 5.0 Adc • Monolithic Construction with Built-In Base-Emitter Shunt Resistors • Compact TO-220 AB Package • Pb-Free Packages are Available Part Electrical Specifications Product Compliance Status Polarity IC Continuous (A) V(BR)CEO Min (V) VCE(sat) Max (V) hFE Min (k) hFE Max (k) fT Min (MHz) Package Type TIP121G Pb-free Active NPN 5 80 2 1 - 4 For more information please contact your local sales support at www.onsemi.com Created on: 6/30/2016 TO-220-3