® Electrocomponents Series 225B Data Sheet Tactile Switch 7.8 x 3.5mm Compact Tactile Switch Features Optimized Mechanical Features • Surface mount terminal configuration • Compatible with IR reflow and manual soldering 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 Storage Temperature - 40°C to +85°C Insulation Resistance 100 Megohms minimum between terminals Push Strength 3 Kgf maximum Maximum Rating 50 mA -12 VDC Actuation Life Travel 0.15mm: 100,000 cycles (160gf, 260gf) Travel 0.25mm: 50,000 cycles (160gf), 30,000 cycles (260gf) Dielectric Strength 250 VAC for 1 minute between adjacent terminals Operating Force 160 or 260gf Travel 0.15, 0.25 mm 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 Operating Temperature - 40°C to +85°C 1-3 CTS Electrocomponents © 2015 CTS Corporation. All rights reserved. Information subject to change. 8/19/15 www.ctscorp.com 4.2 2.3 3 -0 HOLES 2- 1.0 +0.1 0.15 MAX. 5.4 8.3 3.4 1.5 1.75 4 1.6 CIRCUIT DIAGRAM 6.9 2 0.5 3.0 1.0 0.15 1 1.4 4 1.4 2 3 1.1 1 1.1 2.5 L 0.3 MAX. 1.35 0.4 CTS SERIES 225BM...RB1(S), 225BM...RB2(S) - Surface Mount, With Boss PCB LAYOUT H 0.6 1.0 2.3 7.8 2 3 0.8 4 0.6 0.15 DIMENSION : mm STANDARD TOLERANCE : .X (1 PLACE) : ±0.2 0.6 4.2 2 1 1 2 3 4 4.2 2.3 3.0 1.0 2 0.5 1 CIRCUIT DIAGRAM 6.9 4 1.75 5.4 8.3 3.4 1.5 0.15 MAX. 3 1.6 L 2.5 0.3 MAX. 1.35 0.4 CTS SERIES 225BM...R, 225BM...RS - Surface Mount, No Boss PCB LAYOUT 0.6 1.0 7.8 4 3 0.6 0.6 DIMENSION : mm STANDARD TOLERANCE : .X (1 PLACE) : ±0.2 4.2 1 2 -3 CTS Electrocomponents 2 © 2015 CTS Corporation. All rights reserved. Information subject to change. 8/19/15 www.ctscorp.com Ordering Information 225B – M Termination M: SURFACE MOUNT GULL WING Actuating Direction S: SIDE S A A R B1 S Travel S : 0.15mm BLANK: 0.25mm Actuator Force A: 160 gf B: 260 gf Boss Height “H” B1: 0.4mm B2: 0.8mm BLANK: NO BOSS 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