The 2N3906 is a commonly used
PNP bipolar junction transistor intended for general purpose low-power
amplifying or switching applications.
It is designed for low
electric current
An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge through a surface or into a control volume. The moving pa ...
and
power and medium
voltage, and can operate at moderately high speeds.
Overview
The 2N3906 is manufactured in a plastic
TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, base, and collector leads.
The 2N3906 is specified by a collector current of 200
mA, collector-base and collector-emitter voltages of 40
V, for power dissipation of 300
mW. Its
transition frequency Ft is 250
MHz, with a
beta
Beta (, ; uppercase , lowercase , or cursive ; grc, βῆτα, bē̂ta or ell, βήτα, víta) is the second letter of the Greek alphabet. In the system of Greek numerals, it has a value of 2. In Modern Greek, it represents the voiced labiod ...
of at least 100.
The complementary
NPN transistor to the 2N3906 is the
2N3904.
Both types were registered by
Motorola Semiconductor in the mid-1960s.
Part numbers
The
2N3904 (NPN) and 2N3906 (PNP) are complementary transistor pairs. These transistors are available in package styles TO-92, SOT23, SOT223 with different prefixes.
See also
*
2N2222
The 2N2222 is a common NPN bipolar junction transistor (BJT) used for general purpose low-power amplifying or switching applications. It is designed for low to medium current, low power, medium voltage, and can operate at moderately high spee ...
,
2N2907 The 2N2907 is a commonly available PNP bipolar junction transistor used for general purpose low-power amplifying or switching applications. It is designed for low to medium current, low power, medium voltage, and can operate at moderately high spe ...
*
2N3055 The 2N3055 is a silicon NPN power transistor intended for general purpose applications. It was introduced in the early 1960s by RCA using a hometaxial power transistor process, transitioned to an epitaxial base in the mid-1970s. Its numbering fo ...
*
BC108
*
BC548
*
KT315
References
Further reading
;Historical Databooks
Small-Signal Semiconductors Data Book 1218 pages, 1987, Motorola.
Transistor and Diode Data Book 1236 pages, 1973, Texas Instruments.
External links
JEDEC standards
Commercial transistors
Bipolar transistors
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