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1、a s fi. I h m 3234boo 0 0 7 7 4 b 3 rn k w ANSI/ EIA-4 17-A- 19 9 1 APPROVED March 19, 1991 EIA STANDARD Crystal Outlines EM-41 %A (Revision of EIA-417) APRIL 1991 ELECTRONIC INDUSTRIES ASSOCIATION ENGINEERING DEPARTMENT Copyright Electronic Components, Assemblies : .O50 Crystal outlines are grouped
2、 by size and configurations into families of similarity. The families are designated by a class symbol consisting of the letters CO followed by a serial number (thus CO- 1, CO-2, etc.). Within a class of crystal outlines there will be many variations and certain constants. The constants of any class
3、 are delineated on the drawing. The variations are listed in the table accompanying the drawing. The variations in any class pertain to the dimensions of leads and pins and to the height of the enclosure. An identiwng number is assigned to each variant of Itads and to each cover height. A complete p
4、art number consists of the class symbol, the pin number and the cover height number in sequence. The following partia1 table is extracted from CO-6 for purposes of illustration. MAX. t+ .757 1 - 3 5 2 b r In the example CO-6-01-01 and CO-6-02-01 would differ only in that the first has socketable pin
5、s while the . second has short wire leads. CO-6-01-01 and CO-6-01-02 would be socketed identically but would be of different heights. The principle employed in standardizing leads is to provide the socketed pin if it exists and solderable wire leads to allow point-to-point wiring, erect soldering in
6、to a board and soldering into a board with the unit laid down on the board, if all are feasible. Copyright Electronic Components, Assemblies 608 INCH MM .246 6.25 .486 12.34 ,757 19.23 MAX. - .246 ALTERNATE ?T- NOTES 1. TO ALLOW FOR TAPER, MIN. DIMENSIONS AT THIS POINT ARE .187 X .711 (4.75 X 18.06
7、MM). 2. CLOSURE METHOD - SOLDER SEAL Copyright Electronic Components, Assemblies 1 i 14.61 12.70 19.69 6.05 1.27 X X 19.69 * I I 38.74 I 12.70 I .76 I I 51.44 I 6.05 I 1.27 I I NOTES 1. TO AUOW FOR TAPER, MIN. DIMENSIONS AT THIS POINT ARE 285 X .711 (7.24 X18.06 MM). 2. IF DIM. A IS OVER .765 MAX. M
8、IN. DIMENSIONS AT THIS POINT ARE 259 X .707 (6.58 X 17.95 MM). 3. CLOSURE METHOD - SOLDER SEAL Copyright Electronic Components, Assemblies IONS AT THIS POINT ARE .17 X ,525 (4.50 X 13.32 MM). Copyright Electronic Components, Assemblies .O05 ,282 L O T E I TABLE IN INCHES I I . TABLEINMM - CLOSURE ME
9、THOD - R-WELD Copyright Electronic Components, Assemblies 508 .255 1 ALTERNATE T CLOSURE METHOD - R-WELD Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 02:58:10
10、 MDTNo reproduction or networking permitted without license from IHS -,-,- 3234600 0076792 T NOTE I - EIA-417-A Page 4 4 r ! t MAX. A EIA STANDARD CLASS CO-45 HOLDER OUTLINES AND PIN CONNECTIONS FOR OUARTZ CRYSTAL UNITS B MIN. MAX. MAX. _I ,577 p - .255? p ! ! ! pioo2 ?.O08 , 4 : .275 PART NUMBER TA
11、BLE IN INCHES I TABLE IN MM ALTERNATE PIN CLOSURE METHOD - R-WELD Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 02:58:10 MDTNo reproduction or networking permi
12、tted without license from IHS -,-,- = 3234600 0076793 1 n EM-417-A Page 45 EIA STANDARD CLASS CO-46 HOLDER OUTUNES AND PIN CONNECTIONS FOR QUARTZ CRYSTAL UNITS NOTE MAX. _cf .760 I MAX. ALTERNATE + U PART NUMBER II TABLE IN INCHES I I TABLE IN MM CLOSURE METHOD - R-WELD Copyright Electronic Componen
13、ts, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 02:58:10 MDTNo reproduction or networking permitted without license from IHS -,-,- _ W 3234600 007b794 3 EIA-417-A Page 46 EIA STANDARD CLASS
14、CO-47 HOLOER OUTLINES AND PIN CONNECTIONS FOR QUARTZ CRYSTAL UNITS NOTE B I II G- + ! t B Fpl + t .o02 C .O08 b 4 . 4 8 6 MAX. 355 t ALTERNATE PIN - . . u CLOSURE METHOD - R-WELD Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS E
15、mployees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 02:58:10 MDTNo reproduction or networking permitted without license from IHS -,-,- - _ -. , . .- _. W 32311600 007b795 5 W c EIA-417-A Page 47 z .355 EIA STANDARD CLASS CO-48 HOLDER OUTUNES AND PIN CONNECTIONS FOR QUARTZ CRYSTAL UNITS
16、 NOTE MAX. .760 MAX. ALTERNATE T CLOSURE METHOD - R-WELD Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 02:58:10 MDTNo reproduction or networking permitted without license from IHS -,-,-