®

CTS 227 Rotary

Switches

• Hill and valley detent

• Enclosed diecast detent plate

• Low cost

• 30˚ indexing

• Solder lug and printed circuit terminals available

• Molded stator prevents solder from flowing into

the circuit

• Custom switching patterns available

• Index or wafers are available separately

Series 227

Technical Data Sheet 1448C

Electrical and Mechanical Specifications

Indexing

Double bump spring hill and valley detent with

30°indexing for 2 through 12 positions or

continuous rotation.

Voltage and Contact Rating

UL Rating: 3/4 amp at 125 VAC (shorting type only)

Special Rating: 1/4 amp at 28 VDC (shorting or non shorting)

1 amp at 28 VDC (shorting type only)

Contact Resistance

.015 ohm when measured from adjacent terminals

Stop Strength

15 in-lb (17.3Kgf-cm).

Torque

As required within a range of 10 in-oz. (720gf-cm)

to 60 in-oz. (4.3Kg-cm).

Detent Rotational Life

Standard: 25,000 cycles through 12 positions and

return at 10 cycles per minute.

Materials

Shaft:Aluminum or unplated brass at CTS option

Bushing: Brass or Zinc diecast at CTS

Detent Spring: Stainless steel

Detent Plate: Zinc diecast

Rotor Contacts, Stator Contacts and Terminals:Silver

plated brass standard

Stator Insulator:Glass reinforced thermoset material

Bushing Lengths

Standard: 3/8"-32 UNEF-2A Thread,1/4" (6.35mm)

or 3/8" (9.53mm) long.

Special Lengths: Available as required — Brass

Locating Lugs

Standard:Left side .531" (13.5mm) radius

Special:Right side .531" (13.5mm) radius or no lug

Shaft Trim

Standard:Plain round

Special:Flat, slot, knurl, or mixed (flat with slot)

Frames

Machine screw, or staked strut (up to 3 wafers only)

Lubrication

Special lubrication is used sufficient for the life

of the index assembly under normal hand operation.

Features

• RoHS compliant

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© 2006 CTS Corporation. All rights reserved. Information subject to change.

9/30/06

CTS Electronic Components

www.ctscorp.com