MIL-PRF-39035E
TABLE I. Performance requirements.
Characteristic
Requirement
C
F
H
±.025
±.010
±.005
Percent/OC
Maximum resistance-temperature
±250
±100
±50
Parts/million/OC
characteristic
O
O
85OC
Maximum ambient temperature at rated load
85 C
85 C
150OC
150OC
150OC
Maximum ambient temperature at zero load derating
Contact resistance variation
See notes
Maximum percent change
in total resistance
Thermal shock
2
1
1
Moisture resistance
2
1
1
Shock (specified pulse)
1
1
1
Vibration, high frequency
1
1
1
Resistance to soldering heat
1
1
1
Life (2,000 hours)
3
3
3
Life (10,000 hours)
5
5
5
Low temperature operation
2
1
1
Low temperature storage
2
1
1
High temperature Storage
3
3
3
Rotational life
2
2
2
Conditioning
2
1.5
1
NOTES:
1. Where 1 percent or less is specified for total resistance change, it will be considered as ±(1 percent +0.05
ohm).
2. For characteristic C, the contact resistance variation must be 3 percent or 20 ohms, whichever is greater.
3. For characteristics F and H, the contact resistance variation must be 3 percent or 3 ohms, whichever is
greater.
TABLE II. Terminals.
Symbol
Type of terminal
L
Flexible, insulated-wire leads.
P
Printed-circuit pins.
W 1/
Printed-circuit pins (edge mounted).
X 2/
Printed-circuit pins (edge mounted, alternate configuration).
Y 3/
Printed-circuit pins (staggered).
1/ Available only in essentially square styles. Pins extend from the edge 180O
away from the operating shaft, and are parallel to the longitudinal axis of the
operating shaft.
2/ Available only in essentially square styles. Pins extend from the edge 90O
away from the operating shaft, and are perpendicular to the longitudinal axis
of the operating shaft.
3/ Applicable to style RJR12 (Inactive for new design) only.
2
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