A7CN ETC

Document overview

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Technical content

Easy-to-Assemble Thumbwheel Switch Designed Specially for Printed Circuit Boards n The transparent window plate fitted in the readout section protects dial characters from dust and prevents wear by incorrect handling n Plus (+) and minus (–) pushbuttons for positive forward and reverse rotation of each digital wheel n The contact section is of dust-proof construction n Switch units can be assembled simply by fitting the integral hook coupler of each unit into the mating unit, thus eliminating the need of nuts and bolts for assembly

Ordering Information

Back mounting PC board Front mounting PC board Output Code Light gray case Black case Light gray case Black case 06 (binary code) – A7CN-106-1 A7CN-206 A7CN-206-1 Part Number For back mounting type switch assembly For front mounting type switch assembly Accessory Light gray Black Light gray Black End Cap – A7CN-1M-1 A7CN-2M A7CN-2M-1 Spacer – A7CN-1P nn -1 A7CN-2P nn A7CN-2P nn -1 Note: 1. When placing your order, please specify the model numbers and quantities of required switch units, end caps, and spacers, respectively. (Note that switch units and accessories are not factory-assembled for shipment.) 2. Switch case, end cap, and spacer are made of polyacetal resin; however, the window plate is made of polycarbonate resin. 3. One of the following alphabetic codes must be filled into the boxed part of the model number to specify a legend to be hot stamped on the required spacer. 4. End caps come as a set -- left and right. Thumbwheel Switch A7CN n ACCESSORIES Code Legend Code Legend A Hot stamp not required H cm B SEC J m C MIN K oC D H L PCS E g Q x 10 SEC Fk g T0Gm m

Unit: mm (inch) n SWITCH UNITS A7CN-206(-1) Panel cutout Dimensions Note: 1. Unless otherwise specified, a tolerance of ± 0.4 mm applies to all dimensions. 2. Each model number applies to a single switch unit and does not apply to the switch assembly as shown in the drawings. Switching capacity 1 mA to 0.1 A 50 VAC/28 VDC (resistive load) Carry current 1 A (max.) Contact resistance 200 m Ω max. Insulation resistance 10 M Ω min. (at 250 VDC) between nonconnected terminals 1,000 MΩ min. (at 250 VDC) between each terminal and noncurrent-carrying part Dielectric strength 250 VAC, 50/60 Hz for 1 minute between nonconnected terminals 1,000 VAC, 50/60 Hz for 1 minute between each terminal and noncurrent-carrying part Operating force 450 g max. Vibration 10 to 55 Hz, 1.5 mm double amplitude Shock 490 m/s 2 (approx. 50 g) Ambient temperature Operating -10 o to 65oC Storage -20 o to 80oC Humidity 45% to 85% RH max. Service life Mechanical 30,000 operations (steps) min. Electrical 20,000 operations (steps) min. Weight (per unit) Approx. 1.5 g Note: Data shown are of initial value. No. of A B D units (n) (nx6 + 8) (nx6 + 6)

Note: 1. Unless otherwise specified, a tolerance of ± 0.4 mm applies to all dimensions. 2. Each model number applies to a single switch unit and does not apply to the switch assembly as shown in the drawings. No. of A B C D units (n) (nx6 + 6) (nx6 + 11) (nx6 + 16)

UNIT: mm (inch) n END CAPS A7CN-2M-1 [left] [right] A7CN-1M-1 [left] [right] Note: End caps are attached to each end of the switch assembly and used to secure the switch assembly to a mounting panel. n SPACERS A7CN-2P nn -1 A7CN-1P nn -1

A7CN-106-1 , A7CN-206 Hints on Correct Use Re fer to HINTS ON CORRECT USE under the General Information section.