Series 227
®
CTS 227 Rotary
Switches
Features
• 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
• RoHS compliant
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.
Technical Data Sheet 1448C
1-3
CTS Electronic Components
© 2006 CTS Corporation. All rights reserved. Information subject to change.
9/30/06
www.ctscorp.com
Physical Dimensions
0.38
.015
6.35
.250
*
1.55
.061
0.4
"A"±
.016
3/8”-32 UNEF 2A THD.
28.6
1.125
L
26.98
1.062
1.312
33.3
6.35
.250
Ø6.35
.250
"L"±
.031
0.8
3.2
.125
A
13.5
.531
* NOTE :
10.82/.426 DIMENSION BASED UPON USE OF ONE 6.35/.250
SPACE NO SPACERS OR SPACERS OF NUMEROUS LENGTHS
ARE AVAILABLE TO PROVIDE PIN SPACINGS AS REQ'D
8.07
.318
10.82
.426 *
Detent Only
DIMENSION:
mm
INCH
Typical Assembled Switch
Available Terminal Styles
36.6
1.44
39.95
.687
5.74
.226
(7)
1.573
26.98
1.062
36.44
1.433
38.0
1.496
3.7
.146
17.44
.687
2.54
.100 (13)
21.0
17.44
26.2
1.03
22.1
.870
.687
.827
17.44
X-Style
Y-Style
Ø38.76
TO OUTSIDE
1.526
OF TERMINALS
33.32
13.49
.531
Ø1.98
.076
HOLE @ 15°
AS REQUIRED
1.312
15°
26.98
1.062
R15.09
.594
2-CLEARANCE HOLES FOR
T-Style
Ø2.94±0.05 (2)THR. HOLE
.116±.002
P.C. BOARD
MOUNTING HOLE
7.09
.279
#4-40 PANHEAD SCREWS
7.88
.310
4.46
.176
4.95
.279
1.28
.050
2.79
.110
U-Style
DIMENSION:
mm
INCH
P-Style
2-3
CTS Electronic Components
© 2006 CTS Corporation. All rights reserved. Information subject to change.
www.ctscorp.com
9/30/06
嵌入式系统
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