MIL-R-10509-7 Resistors, Fixed, Film High Stability, Style Rn55This specification covers the requirements for style RN55, high stability, film, fixed, resistors. This style is available in characteristics C, D, E and G.

Pages 1 - 2 - 3 - 4

MIL-R-10509/7J

D

c

A                                  B

Dimension                    Inches                                   mm

A                   .250   +.031,  -.046            6.35    +0.79,  -1.17

B                 1.500   ±.125                     38.10    ±3.18

C                   .025   ±.002                       0.64    ±0.05

D                   .109   ±.031                       2.77    ±0.79

NOTE:

1.  Dimensions are in inches.

2.  Metric equivalents are given for general information only.

3.  The end of the body shall be that point at which the body diameter equals the nearest drill size larger then

150 percent of the normal lead diameter, or 250 percent of the nominal lead diameter.  The same drill size shall be used for each end of the body.

4.  The leads shall be solderable to within 0.062 (1.58 mm) of the resistor body.

FIGURE 1.  Style RN55.

6.  NOTES

6.1  Intended use.  The notes specified in MIL-R-10509 are applicable to this specification.

6.2  Acquisition requirements.  Acquisition documents must specify the following:

a.        Title, number, and date of this date of this specification, the applicable associated specification, and the complete PIN.

b.        Unless otherwise specified (see 2.1), the versions of the individual documents referenced will be those in effect on the date of release of the solicitation.

c.    Packaging requirements (see 5.1).

6.3  Substitution data.  The resistors specified herein are not for use in design after 9 May 1972.  They are authorized for use in design contracts effective prior to or on 9 May 1972.  Existing equipment shall be supported by substitute resistors in MIL-PRF-55182/1 of the same resistance value, resistance tolerance, and characteristic performance of this specification regardless of failure rate designation.  Resistors specified in MIL-PRF-55182/1 are preferred for design and regardless of failure rate designation can be used as substitutes for inactivated resistors of the same resistance value, tolerance, and characteristic performance of this specification.  Characteristics C, E, and G were previously inactivated for design by revision F of this specification, dated 22 November 1968.  Characteristic substitution shall be made as indicated in table II.

3