The KMS221GLFS is a micro miniature side actuated tactile switch designed for surface mount technology (SMT) applications. It features a compact size of 4.2 x 3.55 mm and a height of 1.42 mm, making it suitable for space-constrained designs. The switch operates with a momentary function and has a single pole, single throw (SPST) configuration. It offers an operating force of 200 grams and a travel distance of 0.25 mm, with a tactile feedback rating of 15% minimum. Electrical characteristics include a maximum power rating of 1 VA and a maximum voltage of 32 VDC, with a contact resistance of less than or equal to 100 m,Ѷ. The switch is rated for a mechanical life of 100,000 cycles and has a bounce time of less than or equal to 3 ms. It operates effectively in temperatures ranging from -40¬8C to 85¬8C and is compliant with RoHS standards. The KMS221GLFS is packaged in reels of 3,000 pieces, making it convenient for high-volume production. It is suitable for applications in mobile phones, medical handheld monitors, consumer electronics, and telecommunication networks. The switch is ESD protected, ensuring reliability in sensitive electronic environments.
Win Source Part Number: 997423-KMS221GLFS
Category: Switches>Tactile Switches
Series: KMS
Termination Style: Gull Wing
Package: Tape & Reel
Ingress Protection: IP40
Standard Package: 3,000
Circuit: SPST-NO
Switch Function: Off-Mom
Actuator Type: Rectangular Button
Switch Travel: 0.25mm
Contact Rating @ Voltage: 0.05A @ 50VDC
Actuator Orientation: Side Actuated
Outline: 4.60mm x 2.80mm
Illumination: Non-Illuminated
Operating Force: 200gf
Mechanical Life: 100,000 Cycles
Mounting Type: Surface Mount, Right Angle
Temperature Range - Operating: -40°C ~ 85°C
ECCN: EAR99
Fake Threat In the Open Market: 62 pct.
MSL Level: 1 (Unlimited)
REACH Status: REACH Unaffected
HTSUS: 8536.50.9031
Mfr: C&K
Other Names: KMS221G LFS-ND,*KMS221G LFS,*KMS221GLFS,KMS2
Base Product Number: KMS22
SWITCH TACTILE SPST-NO 0.05A 50V
Switch Tactile N.O. SPST Rectangular Button Gull Wing 0.05A 32VDC 1VA 100000Cycle 2N SMD T/R
2.8mm Rectangle button 50mA Surface Mount，Right Angle 4.6mm SPST 200gf 32V SMD Tactile Switches ROHS
SWITCH TACTILE SPST-NO 0.05A 50V
| Win Source Electronics | ODG (Origin Data Global) | VAST STOCK CO., LIMITED | Utmel Electronic Limited | LCSC Electronics Technology (HK) Limited | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|---|
| Product Category | Touch Switches and Tactile Switches | Touch Switches and Tactile Switches | Touch Switches and Tactile Switches | Touch Switches and Tactile Switches | Touch Switches and Tactile Switches | Touch Switches and Tactile Switches |
| Product Number | 997423-KMS221GLFS | KMS221GLFS | KMS221GLFS | 174-KMS221GLFS | KMS221GLFS | KMS221GLFS |
| Product Name | Switches - Tactile Switches | Tactile Switches | Tactile Switches | Switch Tactile N.O. SPST Rectangular Button Gull Wing 0.05A 32VDC 1VA 100000Cycle 2N SMD T/R | Key/Switch >> Tactile Switches | Switches - Tactile Switches |
| Configuration | Normally Open (NO) | |||||
| Switching Mechanism | Single Pole, Single Throw (SPST) | SPST-NO | Single Pole, Single Throw (SPST) | Single Pole, Single Throw (SPST) | Single Pole, Single Throw (SPST) | Single Pole, Single Throw (SPST); SPST-NO |
| Min. Actuating Force | 0.4 lbs (0.2000 kg) | 0.4 lbs (0.2039 kg) | 0.4 lbs (0.2000 kg) | 0.4 lbs (0.2000 kg) | 0.4 lbs (0.2000 kg) | |
| Max. Actuating Force | 0.4 lbs (0.2000 kg) | 0.4 lbs (0.2000 kg) | 0.4 lbs (0.2039 kg) | 0.4 lbs (0.2000 kg) | 0.4 lbs (0.2000 kg) | 0.4 lbs (0.2000 kg) |
| Switch Function | Off-Mom | Momentary Contact; Off-Mom | Momentary Contact |
