228CMVARFAWBR [CTS]
Keypad Switch,;
CTS 
Series 228C
7.2 x 6.8mm Illuminated Tactile Switch
. Surface mount gull-wing terminal and standard through hole configurations
. Compatible with IR reflow, and manual soldering
. Single, Bi-color or Tri-color display during illumination
. Variety of LED color options
. Variety of cap styles, colors, and laser etching options
Ordering Information
Terminal
Actuating
Actuation LED
LED
Cap
Cap
Laser
Series
Packaging
R
Type
Direction
Force
A
Color
R
Type
Style
Color
Etching
228C
M
V
F
A
MS
A
Code
D
Spec.
Blank – No
Code
Spec.
Flat
Etching
Standard through hole
F
(only available on
(white actuator)
Natural color caps)
Surface mount gull wing
(black actuator)
M
See table on page.2
Code
V
Spec.
Vertical
Blank – No Cap
See table on page 2
Code Spec.
160 gf
Blank – No Cap
See table on pages 2
- 3
A
Note: Caps supplied in
Code
Spec.
bulk for surface mount
terminal constructions and
must be installed after IR
reflow soldering.
R
Y
Red
Yellow
Green
Blue
White
Amber
G
B
W
A
Code
Spec.
Tape & reel
packaging
(only available for
surface mount type)
Tray packaging
(only available for
standard through
hole type)
RG
RB
YG
RA
AW
Red & Green
Red & Blue
Yellow & Green
Red & Amber
Amber & White
R
RGB Red, Green & Blue
Blank
www.ctscorp.com
2019-6-10 Rev. D
© 2019 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
Series 228C
Tactile Switch
Cap Style
Cap Etching
Code
Spec.
Code
A
Style
A
B
Round (Dia 7.3mm)
Elliptical column on round
Cylinder on
B
C
C
square
D
E
Cylinder
Cylinder on round
D
F
Joystick button on square
Cap Color
Code
Spec.
MS Misty Silver
W
BB
R
White
Bright Black
Red
MB
A
Misty Black
Orange
N
Natural
Cap Style Details
Style A: Round (Dia.7.3mm)
Style C: Cylinder on square
Style B: Elliptical column on round
Style D: Cylinder
www.ctscorp.com
2019-6-10 Rev. D
Page 2 of 6
© 2019 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
Series 228C
Tactile Switch
Style F: Joystick button on square
Style E: Cylinder on round
Electrical Specifications
Parameter
Conditions & Remarks
Min
Max
100
Unit
milliohms
Contact Resistance
Between insulated
terminals
1 minute between
adjacent switches
Insulation Resistance
Dielectric Strength
Non-switching Rating
100
megohms
250
VAC
50
or
12
mA
or
VDC
Mechanical and Environmental
Maximum reflow temperature, 260°C for 5 seconds
Maximum manual temperature, 350°C for 3 seconds
Soldering
RoHS
Lead-Free. Fully compliant to RoHS Directive 2011/65/EU and 2015/863/EU
160gf
160 gf: 100,000 cycles
2 Kgf maximum
0.25±0.1mm
Standard tape and reel packaging for surface mount gull wing terminal
Tray packaging for standard though hole
Operating Force
Actuation Life
Actuator Strength
Travel
Packaging
Operating Temperature
Range
-25°C to +70°C
Storage Temperature
Range
-30°C to +80°C
www.ctscorp.com
2019-6-10 Rev. D
Page 3 of 6
© 2019 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
Series 228C
Tactile Switch
Mechanical Specifications
Figure 1 – 228CDV, Standard Though Hole, Vertical Actuation
Figure 2 – 228CMV, Surface Mount Gull Wing, Vertical Actuation
www.ctscorp.com
2019-6-10 Rev. D
Page 4 of 6
© 2019 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
Series 228C
Tactile Switch
Figure 3 – 228CDV…F…, Standard Though Hole, Vertical Actuation, Joystick Button on
Square
Figure 4 - 228CMV…A…, Standard Though Hole, Vertical Actuation, Round
www.ctscorp.com
2019-6-10 Rev. D
Page 5 of 6
© 2019 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
Series 228C
Tactile Switch
Packing: Tape and Reel
Surface Mount Gull Wing, Actuator Height 7.0mm
The packing specifications:
1. Structure and materials:
No PART NAME
MATERIAL
①
②
③
REEL
POLYSTYRENE
POLYSTYRENE
POLYESTER
CARRIER TAPE
COVER TAPE
2. Packing quantity: 450 pcs/reel
3. More than 15 empty pockets should remain at each end of the carrier tape for each reel.
4. Shortage of less than 10 pcs a reel is acceptable but no more than 3 consecutive empty
pockets are allowed.
5. Stripping strength of cover tape is between 10 gf to 130 gf and stripping angle should be
within 165°~180°.
6. The product in the pocket of carrier tape should be placed in a specified correct position.
7. Tape and reel per EIA-481.
8. Dimensions:
www.ctscorp.com
2019-6-10 Rev. D
Page 6 of 6
© 2019 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
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