BC547 Transistor (45V, 0.1A)

1 EGP
The BC547 is a very popular, general-purpose NPN bipolar junction transistor (BJT). It is essentially the higher-voltage sibling to the

BC548 Transistor (30V, 0.1A)

1 EGP
The BC548 is a ubiquitous, general-purpose NPN bipolar junction transistor (BJT). It is essentially the “workhorse” of low-power electronics, widely

BC549 Transistor (30V, 0.1A)

1 EGP
The BC549 is a high-gain, low-noise NPN small-signal transistor. Like the BC550 we discussed earlier, the BC549 is specifically engineered

BC550 Transistor (50V, 0.1A)

1 EGP
The BC550 is a low-power, NPN small-signal transistor known specifically for its low-noise characteristics. Unlike the previous transistors we discussed

BC556 Transistor (65V, 0.1A)

1 EGP
The BC556 is a general-purpose, small-signal PNP bipolar junction transistor (BJT). It is the PNP equivalent to the NPN BC546.

BC557 Transistor (45V, 0.1A)

1 EGP
The BC557 is a high-voltage, low-power PNP bipolar junction transistor (BJT). It is the PNP counterpart to the BC547 and

BC558 Transistor (30V, 0.1A)

1 EGP
The BC558 is a general-purpose PNP bipolar junction transistor (BJT). It is the direct PNP complement to the BC548 (NPN)

BC639 Transistor (80V, 1A)

2 EGP
The BC639 is a medium-power NPN bipolar junction transistor (BJT). It is the NPN complement to the BC640, making it

BC640 Transistor (80V, 1A)

2 EGP
The BC640 is a medium-power PNP bipolar junction transistor (BJT). It serves as a more robust version of the low-power

BD135 Transistor (NPN, 45V, 1.5A)

5 EGP
The BD135 is an NPN bipolar junction transistor fabricated using epitaxial planar technology, housed in a robust SOT-32 plastic package.

BD139 Transistor (NPN, 80V, 1.5A)

5 EGP
BD139 Pinout Configuration Pin Number Pin Name Description 1 Emitter Current Drains out through emitter, normally connected to ground 2

BD140 Transistor (NPN, 80V, 1.5A)

5 EGP
BD140 PNP Bipolar Power Transistor TO-126 (1.5A, 80V) The BD140 is a PNP Epitaxial Planar Transistor that is mounted in the TO-126 plastic package.