Electrocomponents
7.8 x 3.5mm Compact
Tactile Switch
Features
Optimized Mechanical Features
• Surface mount terminal configuration
• Compatible with IR reflow and manual soldering
®
Series 225B
Data Sheet
Tactile Switch
Optimized Contact System
• Excellent tactile feedback
Materials
• Silver coated terminals for better solderability
• High temperature materials (UL94V-0)
• RoHS compliant
Electrical and Mechanical Specifications
Switch Contact Resistance
500 milliohms maximum
Insulation Resistance
100 Megohms minimum between
terminals
Maximum Rating
50 mA 12 VDC
Dielectric Strength
250 VAC for 1 minute between adjacent
terminals
Operating Force
160 or 260gf
Travel
0.15, 0.25 mm
Operating Temperature
- 40°C to +85°C
Storage Temperature
- 40°C to +85°C
Push Strength
3 Kgf maximum
Actuation Life
Travel 0.15mm: 100,000 cycles (160gf, 260gf)
Travel 0.25mm: 50,000 cycles (160gf),
30,000 cycles (260gf)
Allowable Solder Time
IR Reflow: Up to 5 seconds at 260°C.
Manual soldering: Up to 3 seconds at 350°C
Packaging
Standard : Tape and reel packaging with
330mm diameter reel and 16mm wide plastic tape
1-3
CTS Electrocomponents
© 2015 CTS Corporation. All rights reserved. Information subject to change.
8/19/15
www.ctscorp.com
CTS SERIES 225BM...RB1(S), 225BM...RB2(S) - Surface Mount, With Boss
0.4
0.3 MAX.
1.35
2.5
1
L
3
2
4
4.2
1
0.15
2.3
1.0
2
0.5
4
5.4
8.3
3.4
3.0
3
-0
2- 1.0
+0.1
HOLES
1.75
0.15 MAX.
1.5
PCB LAYOUT
0.6
H
2.3
7.8
1.0
3
2
0.8
4
DIMENSION : mm
STANDARD TOLERANCE :
.X (1 PLACE) : ±0.2
0.15
0.6
4.2
1
0.6
2
CTS SERIES 225BM...R, 225BM...RS - Surface Mount, No Boss
0.4
0.3 MAX.
1.35
2.5
1
L
3
2
4
4.2
1
2.3
1.0
2
0.5
3
5.4
8.3
3.4
4
3.0
1.75
0.15 MAX.
1.5
PCB LAYOUT
0.6
1.0
7.8
3
4
DIMENSION : mm
STANDARD TOLERANCE :
.X (1 PLACE) : ±0.2
0.6
4.2
1
0.6
2
2 -3
CTS Electrocomponents
© 2015 CTS Corporation. All rights reserved. Information subject to change.
www.ctscorp.com
1.1
6.9
8/19/15
1.4
1.6
CIRCUIT DIAGRAM
1.1
6.9
1.4
1.6
CIRCUIT DIAGRAM
Ordering Information
225B – M
S
A
A
Actuator Force
A:
160 gf
B:
260 gf
R
B1
S
Travel
S
: 0.15mm
BLANK:
0.25mm
Boss Height “H”
B1:
0.4mm
B2:
0.8mm
BLANK:
NO BOSS
Termination
M:
SURFACE MOUNT GULL WING
Actuating Direction
S:
SIDE
Packaging
R
: TAPE & REEL PACKAGING
Actuator Length “L”
A:
3.5 mm
Note:
Consult CTS for other common features not
listed.
3 -3
CTS Electrocomponents
© 2015 CTS Corporation. All rights reserved. Information subject to change.
8/19/15
www.ctscorp.com
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