2N439 Datasheet, PDF (1/3 Pages) New Jersey Semi-Conductor Products, Inc. – NPN HIGH FREQUENCY COMPUTER TRANSISTORS

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SPRINGFIELD, NEW JERSEY 07081
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2N439 - 2N439A
NPN HIGH FREQUENCY COMPUTER TRANSISTORS
2N439 and 2N439A are NPN alloy-junction germanium
transistors. Their basic NPN nature (high mobility electron flow) renders
these transistors capable of very fast response under transient pulse operation.
Their design is ideal for switching and flip-flop circuits. They are contained
in a welded package equipped with flexible plated leads designed for
connection by soldering, welding or socketing. This package has the mech-
anical dimensions of JETEC outline TO-9. The 2N439Ahas the base connected
to the case internally to provide greater dissipation.
JETEC outline
JETEC base
Case material
Maximum case length
Maximum case diameter
Minimum lead length
Lead diameter
MECHANICAL DATA
TO-9
E3-51
Metal
,250 inch
,360 inch
,5 inches
0.017 inch
ELECTRICAL DATA
RATINGS, ABSOLUTE MAXIMUM AT 25°C
Collector'to base voltage, VQQ
Emitter to base voltage, Vgg
Collector to emitter voltage, VQE
Total dissipation, P
Derating per °C increase in ambient temperature
Operating and storage temperature. T
2N439
2N439A
30
30 Vdc
25
25 Vdc
20
20 Vdc
100
150 mW
1.7
2.5 mW
-55 to +85°C
NJ Semi-Conductors reserves the right to change test conditions, parameter limits and package dimensions without
notice. Information furnished by NJ Semi-Conductors is believed to be both accurate and reliable at the time of going
to press. However. NJ Semi-Conductors assumes no responsibilityfor any errors or omissions discovered in its use.
NJ Semi-Conductorsencourages customers to verify that datasheets are current before placing orders.
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