NPFC - MIL-C-26482
CONNECTORS, ELECTRICAL, (CIRCULAR, MINIATURE, QUICK DISCONNECT, ENVIRONMENT RESISTING), RECEPTACLES AND PLUGS, GENERAL SPECIFICATION FOR
| Organization: | NPFC |
| Publication Date: | 5 September 1975 |
| Status: | inactive |
| Page Count: | 67 |
scope:
This specification covers the general requirements for two series of environment resisting, quick disconnect, miniature, circular electrical connectors (and accessories). Each series contains hermetic receptacles. The two series of connectors are intermateable when using power contacts and are not intermateable when using shielded contacts. When intermated, the minimum performance requirement for series 1 connectors will be met.
The connectors are identified as series 1 or 2 and are designed to provide contact protection during mating.
(a) Series 1 - Connector, bayonet coupling, solder or front release crimp removable contacts (125°C). Series 1, hermetic are also available. (see 6.1 for intended use.)
(b) Series 2 - Connector, bayonet coupling, rear release crimp removable contacts (200°C). Series 2, hermetic connectors are available with nonremovable solder type contacts or crimp removable terminations. (see 6.2 for intended use.) (MIL-C-83723/1 through /14 and MIL-C-83723/36 through /49 must meet the performance requirements of series 2.)
Unless otherwise specified, the MS part number for qualified connectors procured in accordance with this specification shall be in the following form, and as specified (see 3.1).
The class and series of connectors shall be identified as shown in table I. TABLE I. Connector class and series.
Series 1 (125°C) Series 2 (200°C)
class --------------------
Shell sizes shall be as specified on the applicable MS standard.
The type of termination and shell material shall be designated as follows:
Type A - Solder cup termination - stainless steel shell (series 1). Type B - Eyelet termination - stainless steel shell (series 1). Type C - Solder cup termination - ferrous alloy shell (series 1 and 2). Type D - Crimp termination - ferrous alloy shell (series 2). Type Y - Eyelet termination - ferrous alloy shell (series 1).
The insert arrangement showing quantity, size, service rating, and positional location of contacts shall be as specified in MIL-STD-1669.
The following designators are used to indicate a full complement of applicable contacts (see 3.4.1).
P - Pin contacts S - Socket contacts C - Feedthrough contacts
The insert position is the angular position of the insert relative to the master key or keyway of the shell. Insert positions other than normal shall be indicated by the letter shown on the insert arrangements specified in MIL-STD-1669.
The military part number for qualified MIL-C-83723, series 1 connectors procured in accordance with this specification shall conform to the issue in effect of MIL-C-83723 and 1.2.1 herein (see 3.7.4 for identification).
Series 1 connectors are rated for specified operation within a temperature range of −55°C (−67°F) to 125°F (257°F). The upper temperature is the maximum internal hot spot temperature resulting from any combination of electrical load and ambient temperature.
Insulation resistance varies with temperature as follows (see figure 1A):
Hot spot temperature Minimum insulation resistance 25°C (77°F) 5,000 megohms 105°C (221°F) 12 megohms 125°C (257°F) 3 megohms
Service life varies with temperature as follows (see figure 1B):
Hot spot temperature Service life 25°C (77°F) continuous 105°C (221°F) 1,000 hours 125°C (257°F) 250 hours
Series 2 connectors are capable of specified operation within a temperature range of −55°C (−67°F) to 200°C (392°F) under any combination of electrical load and ambient temperature. These connectors are rated for specified operation for 1,000 hours, at 200° C maximum internal hot spot temperature.
Insulation resistance limits vary with temperature as follows (see figure 2A):
Hot spot temperature Minimum insulation resistance 25°C (77°F) 5,000 megohms 200°C (392°F) 500 megohms
Service life varies with temperature as follows (see figure 2B):
Hot spot temperature Service life 25°C (77°F) continuous 200°C (392°F) 1,000 hours
The wire range given in table II shall be accommodated by series 1 and series 2 connectors as indicated.
intended Use:
The various classes and types of connectors are intended for application as follows:
(a) Classes E, F, J, and P connectors are intended for use in environment-resistin
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