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TM-9-254 Gearcase Transfer M548 M548A1 (
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Table 7-6.  Fuse Current Ratings
TM 9-254 7-7.  Semiconductor Identification - Continued a   Flat Pack.    Flat  Pack  integrated  circuit  packages  commonly  contain  8,10,12,14,  or  more  leads.    Standard  center-to- center lead spacing is 0.050 inch.  Unlike DIPs or TO Cans, most flat packs are not mounted through the board, but are planar mounted to form lap solder joints.  The index point may appear on the corner of the first lead or centered between the number I lead and the top of the component.  The leads are numbered counterclockwise from the index point. Figure 7-16.1.  Component Installation 7-8.  Military Fuse Identification. Tables  7-4  thru  7-7  provide  various  information  used  in  identifying  fuses.    Figure  7-17  provides  an  example  of  a  fuse marking using these tables. Table 7-4.  Fuse Style Code Material* Size (in.) Code Material Size (in) F01 A 1/4 x 1 F21 C 2.406 x 8-5/8 F02 A 1/4 x 1-1/4 F22 C 2.906 x 10-3/8 F03 B 1/4 x 1-1/4 F27 C 13/32 x 3 F04 A 1/4 x 1-1/4 F28 C 13/32 x 4-1/2 F05 A 9/32 x 1-1/4 F29 C .812 x 5 F06 B 9/32 x 1-1/4 F30 C .812 x 10 F07 A 13/32 x 1-1/2 F60 D 13/32 x 1-1/2 F09 C 13/32 x 1-1/2 F61 D .562 x 2 F10 C 13/32 x 1-1/2 F62 D .812 x 3 F11 B 13/32 x 1-1/2 F63 D 1.312 x 5-7/8 F15 C 9/16 x 2 F64 D 1.875 x 7-1/8 F16 C .812 x 3 F65 D 2.405 x 8-5/8 F19 C 1.312 x 5-7/8 F66 D 2.906 x 10-3/8 F20 C 1.875 x 7-1/8 F67 D 2.000 x 10-3/8 *A Glass B Plastic or Ceramic C Fiber D Glass Melamine Table 7-5.  Fuse Voltage Ratings Code Voltage Code Voltage A 31 H 500 B 52 J 1000 C 90 L 2500 D 125 N 5000 G 250 P 10000 7-16  Change 6

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