MIL-PRF-914 Resistor Networks, Fixed, Film, Surface Mount, Nonestablished Reliability, And Established Reliability, General Specification ForThis specification covers the general requirements for nonestablished reliability \(non-ER\) and established reliability \(ER\), hermetically sealed \(see 3.27\) and nonhermetically sealed networks \(see 3.27.1\). These networks consist entirely of fixed, film resistors. They are primarily intended for use in surface mount applications where space is a major concern. ER resistors covered by this specification will have life failure rates \(FR\) ranging from 1 percent to 0.001 percent per 1,000 hours \(see 1.2.1.7\). The ER FR are established at a minimum 60-percent confidence level on the basis of life tests. Designers are CAUTIONED on using these resistors in pulse applications \(see 6.4.4\).

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MIL-PRF-914C

1.2.1.4 Resistance tolerance. The resistance tolerance is identified by a single letter in accordance with table V.

TABLE V. Resistance tolerance.

Resistance tolerance

Symbol

percent (�)

0.1

0.5

1.0

2.0

5.0

1.2.1.5 Schematic. The network schematic will be identified by a single letter as specified in the applicable

associated specification (see 3.1).

1.2.1.6 Style. The style is identified by the three-letter symbol "RNS" followed by a three-digit number (see 3.1).

The letters identify fixed surface mount resistor networks and the three digits represent the specific associated

specification.

1.2.1.7 Product level designation. The product level designation as shown in table VI is signified by a single letter

(M, P, R, S, and C) that identifies the product level for which the resistor is qualified (see 4.4.4 and 6.3).

TABLE VI. Product level designator.

Product level

Product level 1/

designator

Non-ER

1.0

0.1

0.01

0.001

1/ Failure rate in percent/1,000 hours.

2. APPLICABLE DOCUMENTS

2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This

section does not include documents cited in other sections of this specification or recommended for additional

information or as examples. While every effort has been made to ensure the completeness of this list, document

users are cautioned that they must meet all specified requirements documents cited in sections 3 and 4 of this

specification, whether or not they are listed.

2.2 Government documents.

2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a

part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are

those cited in the solicitation or contract (see 6.2).