DLA A-A-55145-1993 CONNECTORS ELECTRICAL IEEE 488 COMPATIBLE RECTANGULAR MINIATURE POLARIZED SHELL RECEPTACLE SHIELDED 24 POSITION RIGHT ANGLE PRINTED CIRCUIT BOARD TERMINATING SCR.pdf
《DLA A-A-55145-1993 CONNECTORS ELECTRICAL IEEE 488 COMPATIBLE RECTANGULAR MINIATURE POLARIZED SHELL RECEPTACLE SHIELDED 24 POSITION RIGHT ANGLE PRINTED CIRCUIT BOARD TERMINATING SCR.pdf》由会员分享,可在线阅读,更多相关《DLA A-A-55145-1993 CONNECTORS ELECTRICAL IEEE 488 COMPATIBLE RECTANGULAR MINIATURE POLARIZED SHELL RECEPTACLE SHIELDED 24 POSITION RIGHT ANGLE PRINTED CIRCUIT BOARD TERMINATING SCR.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
1、t J A-A-55145 December 7, 1993 COMMERCIAL ITEM DESCRIPTION CONNECTORS, ELECTRICAL, IEEE 488 COMPATIBLE, RECTANGULAR, MINIATURE, POLARIZED SHELL, RECEPTACLE, SHIELDED, 24 POSITION, RIGHT ANGLE, PRINTED CIRCUIT BOARD TERMINATING, SCREW LOCKING The General Services Administration has authorized the use
2、 of this commercial item description (CID). Abstract. This CID covers the general requirements for a polarized shell, receptacle, electrical digital interface bus connector. 488 interface standard, and require termination to a printed circuit board of up to 3.175 millimeters (.I25 inch) thick. The c
3、onnector is a right angle mount type. Connectors covered by this CID are intended for commercial/industrial applications and may be used in military systems where individual environmental and performance requirements can be met. This connector can be used in applications that require conformance to
4、the IEEE Part or Identifying Number (PIN). The PIN for the CID shall be as shown in the following example: o1 - A-A-55145 - I I I I II CID number Dash number Salient characteristics. Contacts. The contacts shall be formed of a high conductive, high strength copper alloy with gold over nickel plating
5、 in the contact area. Connector housinqs. Connector housings shall be molded from self-extinguishing black thermoplastic material for high impact and dielectric strength. Connector shields. Connector hardware. Termination type. Connector shields shall be made of die cast zinc with nickel plating. Co
6、nnector hardware shall be made of zinc plated carbon steel. Terminations shall be printed circuit board termination type which accommodate printed circuit boards of up to 3.175 millimeters (.I25 inch) thick. of solderability. Contact rating. Termination resistance. The contact resistance shall be 30
7、 milliohms maximum initial Dielectric withstandinq voltaqe. Termination tails shall be tin plated for ease Contacts shall be rated at 3.5 amperes minimum at +25“C. There shall be no breakdown of the insulating material when subjected to 1000 V ac for 1 minute between adjacent contacts of the mated c
8、onnector assemblies. Mating force. Unmating force. Connector mating force shall not exceed 3.12 newtons (0.7 pound) maximum per contact. Connector unmating force shall not exceed .36 newton (0.08 pound) minimum per contact. Durability. Durability shall consist of 200 cycles of mating and unmating an
9、d upon completion the termination resistance shall not exceed 26.5 milliohms maximum. damage. There shall be no indication of physical Operatinq temperature. The operating temperature range shall be from -4OOC to +10SoC. AMSC N/A DISTRIBUTION STATEMENT A. Approved for public release; distribution is
10、 unlimited. FSC 5935 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-55145 m 9999974 03b33527 TLO A-A-551 45 8. 000000000000 e-3- / 2 HOLES 2.16 10.013 I I I I I-150230 46.79 20.36 1 k- 55.88 REF ,-d mm 0.013 O. 36 2.16 11.94 16.00 36.20 46.79 55
11、-88 INCH ,0005 .014 .085 .470 .230 1,425 1.842 2.200 NOTES: I. Dimensions are in millimeters. 2. The US government preferred system of measurement is the metric SI system. was originally designed using inch-pound units of measurement, in the event of conflict between the metric and inch-pound units,
12、 the inch-pound units shall take precedence. However, since this item c Figure 1. Connector, printed circuit board, 24 position, preassembled vertical mount. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-55145 rn 9999974 OLb1528 957 rn A-A-55
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