MJE521
Plastic Medium−Power
NPN Silicon
Transistor
These devices are designed for use in general−purpose amplifier and switching circuits.
Recommended for use in 5 to 10 Watt audio amplifiers utilizing complementary symmetry circuitry.
Features
• DC Current Gain − hFE = 40 (Min) @ IC
= 1.
0 Adc
• Complementary to
PNP MJE371 • Pb−Free Package is Available*
http://onsemi.
com
4 AMPERES POWER
TRANSISTORS
NPN SILICON 40 VOLTS, 40 WATTS
MAXIMUM RATINGS
Rating
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎCollector−Emitter Voltage
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎCollector−Base Voltage
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎEmitter Base Voltage
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎCollector Current − Continuous ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ− Peak
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎBase Current...