SMCD MACOM | Alldatasheet
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Technical content
Catalog 1308390 Dimensions are in inches Dimensions are shown for USA: 1-800-522-6752 South America: 55-11-3611-1514 Issued 9-04 and millimeters unless otherwise reference purposes only. Canada: 1-905-470-4425 Hong Kong: 852-2735-1628 specified. Values in parentheses Specifications subject Mexico: 01-800-733-8926 Japan: 81-44-844-8013 J SMCD Series Pushwheel Switches, Mini, Front Mount TYPICAL PERFORMANCE CHARACTERISTICS: ENVIRONMENTAL SPECIFICATIONS MATERIAL SPECIFICATIONS: SMC .197/.134; SMCD .193/.134 Except 301 & SG558: .140 and SG557 .120 SMCD Series have large visible readout characters despite it's small size. This popular family is used in measurement and test instrumentation for range setting, data programming and count controlling; and in communications equipment for digital tuning. The simple, reliable bi-direction pushbutton mechanism permits rapid changes to either higher or lower numerical settings. Instrument-grade performance and long service life are enhanced by the heavy gold wiping contacts. Large readout characters are protected by dust-sealed windows. Snap-together grouping and snap-in panel mounting minimize installation time and cost. SMCD models have snap detent with slight audible click. SMCD bi-directional code switches may be easily assembled into groups of any number. The tabs or pins of one decade section press fit into the holes in the adjacent section. Spacers and end mounting plates may be included in the same manner as desired. Groups of SMCD switches with end plates snap into panel holes of the recommended size and are retained by plastic clips. Again, tools and additional hardware items are not required. 1SMCD .193/.139 EXCEPT 301: .140 0.20 (5.08) HIGH NUMBERS .300 (7.62) .280 (7.11) .945 (24.0) .232 (5.89) 1.89 (48.0) .866 (22.0) 1.02 (26.0) 1.26 (32.0) AK TYPES 1.66 (42.1) AL & AL/D TYPESBOARD TRACE DETAIL AK TYPES .098 (2.49) .039 (.991) DIA. TYP. .059 (1.50) .060 (1.52) AL TYPES .295 (7.49) .295 (7.49) .098 (2.49) .039 (0.99) DIA. TYP. .059 (1.50) .060 (1.52) ALD TYPES .098 (2.49) .039 (.0.99) DIA. TYP. .059 (1.50) .060 (1.52) .886 (22.5) N X .300 +.138WHERE n IS THE NUMBER OF SWITCHES SIDE VIEW SWITCH SHOWN WITH END MOUNTING PLATE P/N SMCPK (PAIR) TOP VIEW 0.30 x n + 0.13 (7.60) TYP. 0.04 (1.00) TYP. 0.06 (1.50) 0.04 TO 0.13 (1.00 TO 3.30) PANEL THICKNESS RANGE 0.3 x n + 0.24 (7.6 x n + 6.10) RECOMMENDED PANEL HOLE Model Description SMCPK End mounting plates (pair) SMCL 300" spacer section SMCA .100" spacer (with mounting clips) SMCADP .100" spacer, decimal point (with mounting clips) B9L Connector, 9 contacts, solder lug terminals B9LS Connector, 9 contacts, PC pins B9LS5PIN Connector, 5 contacts, PC pins B11LS Connectors, 11 contacts, PC pins (for 111) SP1.2 Limit stop pin for SMD 10 position only See Code Tables on Page J3 SMCD - 131 - AK Codes Connections 111 = Decimal AK = pcb short 131 = BCD AL = pcb long 137 = BCD Complement LS = solder pin 141 = BCD + Complement ALU = pcb long downward 301 = Hexadecimal .236+.004 (6.0+1.0) .022 (0.56) AK AL ALU LS