Specification: 

• Linear
• Spring: come with 22 mm long springs
• Total travel: 3.4 ±0.4 mm
• Pre-travel: 1.2 ±0.6 mm
• Operating force: 45 ±15 gf
• Top Housing: INK Material
• Stem: POM
• Bottom Housing: POM
• 3-Pin, PCB Mount
• Pre-lubed
• 35 per unit