BD139 Transistor Pinout,Features,Alternate

BD139 Transistor Pinout is a popular npn kind used in form of electronic circuits. It’s miles a perfect transistor because of its high collector contemporary and coffee price. Because of these features it’s miles used in educational electronics initiatives in addition to in business electronics circuit. This transistor can load upto1. 5a so that you can pressure excessive modern additives like excessive current relays, vehicles, leds and so on. It can easily continue to exist in nearly all electronics circuits because collector emitter and collector base voltage is very high upto eighty volts. It’s also best to use in amplifier circuits due to 12. 5w collector dissipation. The saturation voltages of bd139 are just0. 5v. Pin configurations of bd139

bd139 transistor pinout

no pin name description
1 emitter contemporary drains out thru emitter
2 collector contemporary flows in thru collector
three base controls the biasing of transistor, used to show on & off. Capabilities / technical

specifications of bd139

plastic casing: npn transistor
to be had package: to-126
non-stop collector contemporary(ic): 1. 5a
collector-emitter voltage (vce): 80v
collector-base voltage (vcb): 80v
emitter base breakdown voltage(vebo): 5v
collector dissipation (computer): 5 watt
max transition frequency (toes): one hundred ninety mhz
dc contemporary benefit (hfe): 25 – 250
max garage & working temperature: -fifty five to +a hundred and fifty centigrade
bd139 equal npn transistors
bd136, bd138,bd230, 2sc5171s, bd349, and bd379

best alternative to bd139 transistor d882

pnp complementary of bd139 transistor
complementary of bd139 is bd140


switching circuits
rf amplifiers circuit
audio amplifiers packages
amplification circuits
load driver circuits

in which to apply bd139 transistor

this transistor firstly manufactured through philips rated at 160mhz specifically for audio packages, later it was cloned by different manufacturers like st, samsung and so on. Due to excessive collector modern of one. 5a this transistor can be used to manipulate (on/off) excessive masses that consume less than 1. 5a. The saturation voltages (base emitter voltage vbe) of most effective 5v, this makes it smooth to use in digital electronics which has an operating voltage of 5v. It is available in plastic jacket this is way its fee may be very less and the most crucial characteristic of plastic jacket is that it will not be impact via other noise. Datasheet of bd139
the datasheet of this transistor is given on this link.