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MIL-PRF-19500-421 Semiconductor Device, Dual Transistor, Unitized, Npn/Pnp, Complementary, Silicon, Types 2N3838, 2N4854, And 2N4854U, Jan, Jantx, And JantxvThis specification covers the performance requirements for unitized, dual transistors which contain a pair of electrically isolated complementary NPN and PNP silicon triode transistors in one package. Three levels of product assurance are provided for each device type as specified in MIL-PRF-19500.

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MIL-PRF-19500/421G
Ltr
Dimensions
Ltr
Dimensions
Inches
Millimeters
Inches
Millimeters
Min
Max
Min
Max
Min
Max
Min
Max
A
.058
.100
1.47
2.54
D2
.045
.055
1.14
1.40
A1
.026
.039
0.66
0.99
D3
.175
4.45
B1
.022
.028
0.56
0.71
E
.240
.250
6.10
6.35
B2
.072 Ref.
1.83 Ref.
E1
.250
6.35
B3
.006
.022
0.15
0.56
L1
.060
.070
1.52
1.78
D
.165
.175
4.19
4.45
L2
.082
.098
2.08
2.49
D1
.095
.105
2.41
2.67
L3
.003
.007
0.08
0.18
NOTES:
1.  Dimensions are in inches.
2.  Millimeters are given for general information only.
3.  The coplanarity deviation of all terminal contact points, as defined by the device seating plane, shall
not exceed .006 inch (0.15 mm) for solder dipped leadless chip carriers.
FIGURE 3. Physical dimensions of transistor type 2N4854U.
5



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