INCHPOUND
MILPRF19500/581C
The documentation and process conversion measures
21 February 2013
necessary to comply with this document shall be
SUPERSEDING
completed by 21 August 2013.
MILPRF19500/581B
10 March 2005
PERFORMANCE SPECIFICATION SHEET
SEMICONDUCTOR DEVICE, TRANSISTOR, NPN, SILICON AMPLIFIER,
TYPES 2N4237, 2N4238, AND 2N4239, JAN, JANTX, AND JANTXV
This specification is approved for use by all Departments
and Agencies of the Department of Defense.
The requirements for acquiring the product described herein shall consist of
this specification sheet and MILPRF19500.
1. SCOPE
1.1 Scope. This specification covers the performance requirements for NPN, silicon, amplifier transistors. Three
levels of product assurance are provided for each device type as specified in MILPRF19500.
1.2 Physical dimensions. The device package style is TO205AD (formerly TO39) in accordance with figure 1.
1.3 Maximum ratings. Unless otherwise specified, TA = +25°C.
Type
VCEO
IC
PT
TJ and TSTG
RθJA
RθJC
PT
VCBO
VEBO
IB
TA = +25°C
TC = +25°C
(1)
(2)
°C/W
°C/W
°C
W
W
V dc
V dc
V dc
A dc
A dc
2N4237
1.0
6.0
175
18
50
40
6.0
1.0
0.5
2N4238
1.0
6.0
175
18
80
60
6.0
1.0
0.5
65 to +200
2N4239
1.0
6.0
175
18
100
80
6.0
1.0
0.5
(1) See figure 2.
(2) See figure 3.
Comments, suggestions, or questions on this document should be addressed to DLA Land and Maritime,
ATTN: VAC, P.O. Box 3990, Columbus, OH 43218-3990, or emailed to Semiconductor@dla.mil. Since
contact information can change, you may want to verify the currency of this address information using the
ASSIST Online database at https://assist.dla.mil.
AMSC N/A
FSC 5961
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