Series 228A
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 color display during illumination
Variety of LED color options
Variety of cap styles, colors, and laser etching options
Ordering Information
Series
222I
Terminal
Type
M
Actuating
Direction
V
V
Actuation
Force
A
A
LED
Color
R
LED
Type
F
Cap
Style
A
Cap
Color
MS
Laser
Etching
A
Packaging
E
22
228A
M
R
Code
D
M
Spec.
Standard through hole
(white actuator)
Surface mount gull wing
(black actuator)
Spec.
Vertical
Side, with 4
pairs of
terminals
Side, with 3
pairs of
terminals
Code
F
*Blank
Spec.
Flat
Bulb
Blank – No Etching
(only available on
Natural color caps)
See table on page.2
Code
V
*S1
*S2
*Blank is only available
for no cap, vertical
through hole terminal
with single color LED
Blank – No Cap
See table on page
2
*S1 and S2 are only available with
Cap Style. C, Flat LED,
and through hole terminals
Code
A
Spec.
160 gf
Code
R
Y
G
B
W
A
RG
RB
YG
RA
AW
Spec.
Red
Yellow
Pure Green
Blue
White
Amber
Red & Green
Red & Blue
Yellow & Green
Red & Amber
Amber & White
Blank – No Cap
See table on pages 2
-4
Spec.
Tape & reel
packaging
R
(only available for
surface mount type)
Tray packaging
Blank (only available for
standard through
hole type)
Note: Caps supplied in bulk for surface mount
terminal constructions and must be installed after
IR reflow soldering.
Code
2020-12-21 Rev. F
www.ctscorp.com
Page 1 of 7
© 2020 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 228A
Tactile Switch
Cap Style
Code
A
B
C
Spec.
Elliptical
column on
round
45˚ Elliptical
column on
round
Cylinder on
3/4 circle
Cap Color
Code Cap Color
MS Misty Silver
W
White
BB Bright Black
Cap Etching
R
Red
MB Misty Black
A
Orange
N
Natural
Cap Etching
Cap Style Details
Style A: Elliptical column on round
Ex. of Misty Silver
Cap with “
Code
A
B
C
Style
”
etching
D
EStyle C: Cylinder on 3/4round
Style B: Elliptical column on round
Style C: Cylinder on 3/4 circle
Ex. of Misty Silver
Ex. of Orange
Cap with “
Cap with “
”
etching
”
etching
2020-12-21 Rev. F
www.ctscorp.com
Page 2 of 7
© 2020 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 228A
Tactile Switch
Electrical Specifications
Parameter
Contact Resistance
Insulation Resistance
Dielectric Strength
Nonswitching Rating
Conditions & Remarks
Between insulated
terminals
250 VAC between
adjacent switches
Min
100
1
50
or
12
Max
100
Unit
milliohms
megohms
minute
mA
or
VDC
Mechanical and Environmental
Soldering
RoHS
Operating Force
Actuation Life
Actuator Strength
Travel
Packaging
Operating Temperature
Range
Storage Temperature
Range
Maximum reflow temperature, 260°C for 5 seconds
Maximum manual temperature, 350°C for 3 seconds
Lead-Free. Fully compliant to RoHS Directive 2011/65/EU
160±50 gf
100,000 cycles
2 Kgf maximum
0.25±0.1 mm
Standard tape and reel packaging for surface mount gull wing terminal
Tray packaging for standard though hole
-25°C to +70°C
-30°C to +80°C
Soldering Profile
2020-12-21 Rev. F
www.ctscorp.com
Page 3 of 7
© 2020 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 228A
Tactile Switch
Mechanical Specifications
Figure 1 – 228ADV…, Standard Though Hole, Vertical Actuation
Figure 2 – 228AMV…, Surface Mount Gull Wing, Vertical Actuation
2020-12-21 Rev. F
www.ctscorp.com
Page 4 of 7
© 2020 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 228A
Tactile Switch
Figure 3 – 228ADS1…, Standard Though Hole, Side Actuation, 4 Pairs Terminals
Figure 4 – 228ADVA…A…, Standard Though Hole, Vertical Actuation, Elliptical Column
on Round Cap in Natural Color
2020-12-21 Rev. F
www.ctscorp.com
Page 5 of 7
© 2020 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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