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NPFC - MIL-STD-1276

LEADS FOR ELECTRONIC COMPONENT PARTS

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Organization: NPFC
Publication Date: 18 May 1993
Status: inactive
Page Count: 15
scope:

This standard establishes the method of identifying, specifying, and limiting to a minimum the combinations of basic materials, the thickness and composition of the plating used therewith, and the sizes of wire and flat wire (ribbon) leads on electronic and electrical parts when they are to be soldered or welded during assembly in equipment.

The type designation shall be in the following format:

The lead cross section shall be identified by a single letter symbol as follows:

R - Rectangular.

S - Square.

W - Wire (round or circular).

X - Other (as specified).

The lead size shall be identified by the nominal diameter or nominal diagonal in millimeters (within parentheses) or inches (without parentheses). See table I for a list of suggested nominal sizes.

The lead composition shall be identified by a single letter symbol as specified in 5.1.

The final finish for leads shall be identified by a two-number code as specified in 5.2.

The underplating type and thickness shall be identified by a one or two digit alpha-numberic code as specified in 5.2.1. TABLE I. Nominal size (for information only).

Wire size Diameter in Diameter in AWG (B and S) inches millimeters -------------------------------------------- 1 0.289 7.34 2 0.257 6.53 3 0.229 5.82 4 0.204 5.18 5 0.181 4.60 6 0.162 4.11 7 0.144 3.65 8 0.128 3.25 9 0.114 2.90 10 0.101 2.57 11 0.090 2.29 12 0.080 2.03 13 0.072 1.83 14 0.064 1.63 15 0.057 1.45 16 0.050 1.27 17 0.045 1.14 18 0.040 1.02 19 0.035 0.89 20 0.032 0.81 21 0.028 0.71 22 0.025 0.64 23 0.022 0.56 24 0.020 0.51 25 0.017 0.43 26 0.015 0.38 27 0.014 0.36 28 0.012 0.30 29 0.011 0.28 30 0.010 0.25 31 0.008 0.20 32 0.008 0.20 33 0.007 0.18 34 0.006 0.15 35 0.005 0.13 36 0.005 0.13 37 0.004 0.10 38 0.004 0.10 39 0.003 0.08 40 0.003 0.08

Document History

February 12, 2018
LEADS FOR ELECTRONIC COMPONENT PARTS
Documents conforming to the requirements of this standard are intended for use of identifying, specifying, and limiting to a minimum the combinations of basic materials, the thickness and composition...
January 2, 2013
LEADS FOR ELECTRONIC COMPONENT PARTS
Documents conforming to the requirements of this standard are intended for use of identifying, specifying, and limiting to a minimum the combinations of basic materials, the thickness and composition...
March 30, 2010
Leads for Electronic Component Parts
Documents conforming to the requirements of this standard are intended for use of identifying, specifying, and limiting to a minimum the combinations of basic materials, the thickness and composition...
March 14, 2005
LEADS FOR ELECTRONIC COMPONENT PARTS
Documents conforming to the requirements of this standard are intended for use of identifying, specifying, and limiting to a minimum the combinations of basic materials, the thickness and composition...
January 14, 2000
LEADS FOR ELECTRONIC COMPONENT PARTS
Documents conforming to the requirements of this standard are intended for use of identifying, specifying, and limiting to a minimum the combinations of basic materials, the thickness and composition...
MIL-STD-1276
May 18, 1993
LEADS FOR ELECTRONIC COMPONENT PARTS
This standard establishes the method of identifying, specifying, and limiting to a minimum the combinations of basic materials, the thickness and composition of the plating used therewith, and the...
January 28, 1987
LEADS FOR ELECTRONIC COMPONENT PARTS
A description is not available for this item.
January 18, 1982
LEADS FOR ELECTRONIC COMPONENT PARTS
A description is not available for this item.
September 2, 1980
LEADS FOR ELECTRONIC COMPONENT PARTS
A description is not available for this item.
June 13, 1979
LEADS FOR ELECTRONIC COMPONENT PARTS
A description is not available for this item.
March 6, 1968
LEADS FOR ELECTRONIC COMPONENT PARTS
A description is not available for this item.
May 14, 1965
LEADS FOR ELECTRONIC COMPONENT PARTS
A description is not available for this item.
August 14, 1963
LEADS FOR ELECTRONIC COMPONENT PARTS
A description is not available for this item.

References

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