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MIL-PRF-19500-291 Semiconductor Device, Transistor, Pnp, Silicon, Switching, Types 2N2906A, 2N2906Al, 2N2907A, 2N2907Al, 2N2906Aua, 2N2907Aua, 2N2906Aub, 2N2906Aubc, 2N2907Aub, 2N2907Aubc, 2N2906Aubn, 2N2906Aubcn, 2N2907Aubn, And 2N2907Aubcn, Jan, Jantx, Jantxv, Jans, Jansm, Jansd, Jansp, Jansl, Jansr, Jansf, Jansg, Jansh Janhc, Jankc, Jankcm, Jankcd, Jankcp, Jankcl, Jankcr, Jankcf, Jank...This specification covers the performance requirements for PNP, silicon, switching transistors. Five levels of product assurance are provided for each encapsulated device type as specified in MIL-PRF-19500 and two levels of product assurance are provided for each unencapsulated device type. Radiation hardness assurance \(RHA\) level designators "M", "D", "P", "L" "R", "F", "G", and "H" are appended to the device prefix to identify devices which have passed RHA requirements.

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MIL-PRF-19500/291U
Dimensions
Symbol
Inches
Millimeters
Note
Min
Max
Min
Max
BL
.115
.128
2.92
3.25
BW
.095
.108
2.41
2.74
BH
.046
.056
1.17
1.42
UB only, 4
BH
.046
.056
1.17
1.42
UBN only, 5
BH
.055
.069
1.40
1.75
UBC only, 6
BH
.055
.069
1.40
1.75
UBCN only, 7
CL
.128
3.25
CW
.108
2.74
LL1
.022
.038
0.56
0.97
3 PLS
*
LL2
.014
.035
0.356
0.89
3 PLS
*
LS1
.035
.040
0.89
1.02
LS2
.071
.079
1.80
2.01
LW
.016
.024
0.41
0.61
r
.008
0.20
6
r1
.012
0.30
8
*
r2
.022
0.56
UB & UBC only, 8
NOTES:
1.  Dimensions are in inches.
2.  Millimeters are given for general information only.
3.  Hatched areas on package denote metallized areas.
4.  UB only: Pad 1 = Base, Pad 2 = Emitter, Pad 3 = Collector, Pad 4 = Shielding connected to the metal lid.
5.  UBN only: Pad 1 = Base, Pad 2 = Emitter, Pad 3 = Collector, Isolated lid with three pads only.
6.  UBC (ceramic lid) only: Pad 1 = Base, Pad 2 = Emitter, Pad 3 = Collector, Pad 4 = Shielding connected to
the lid.
7.  UBCN (ceramic lid) only: Pad 1 = Base, Pad 2 = Emitter, Pad 3 = Collector, Isolated lid with 3 pads only.
8.  For design reference only.
9.  In accordance with ASME Y14.5M, diameters are equivalent to φx symbology.
* FIGURE 3. Physical dimensions, surface mount (UB, UBN, UBC, and UBCN versions) - Continued.
6



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