MIL-PRF-55342-3 Resistors, Chip, Fixed, Film, Nonestablished Reliability, Established Reliability, Space Level, Style Rm1005This specification covers the requirements for style RM1005, fixed, film, chip, nonestablished reliability, established reliability, and space level resistors. This style is available in characteristic H, characteristic E, characteristic K, characteristic L, and characteristic M, resistance tolerances .1 percent, .25 percent, .5 percent, 1 percent, 2 percent, 5 percent, and 10 percent, and all termination materials. . Designers are CAUTIONED on using these resistors in high power pulses applications \(see 6.5\).

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MIL-R-55342/3J

6.3 Tolerance for wraparound termination. The added tolerance for the wraparound type termination is

intended to apply only to termination, metallization, and pretinning material.

6.4 Electrostatic charge effects. Under relatively low humidity conditions, some types of film resistors,

particularly those with small dimensions and high sheet resistivity materials, are prone to sudden

significant changes in resistance (usually reductions in value) and to changes in temperature coefficient

of resistance as a result of discharge of static charges built up on associated objects during handling,

packaging, or shipping. Substitution of more suitable implements and materials can help minimize this

problem. For example, use of cotton gloves, static eliminator devices, air humidifiers, and operator and

workbench grounding systems can reduce static buildup during handling. Means of alleviating static

problems during shipment include elimination of loose packaging of resistors and use of metal foil

(conductive) and static dissipation packaging materials. Direct shipments to the government is controlled

by MIL-DTL-39032 which specifies a preventive packaging procedure.

6.5 Changes from previous issue. The margins of this specification are marked with asterisks to

indicate where changes from the previous issue were made. This was done as a convenience only and

the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and

contractors are cautioned to evaluate the requirements of this document based on the entire content

irrespective of the marginal notations and relationship to the last previous issue.

Custodians:

Preparing activity:

Army - CR

Navy - EC

Air Force - 11

Agent:

DLA - CC

Review activities:

Army - AR, AT, AV, CR4

(Project 5905-1693-03)

Navy - AS, CG, MC, OS

Air Force - 19, 99

Civil agencies:

NASA - NA