If your search is for PCB Manufacturing Companies in the USA that also provide Double Layer PCB Manufacturing then Northpoint Technologies, Inc. provides the required solutions at cost effective prices. The business is an expert in touch screens, silicone switches, flex circuits and wiring harnesses. There are a plethora of products created by the business that don’t need any additional assistance. Here’s the list for silicone switches:

Travel-0.8 – 1.5 mm

Force-60 – 300 grams

Tactile Response-Yes

Life Cycles-1,000,000

Operating Temperature-40° to + 150°C

Storage Temperature-50° to + 170°C

Dielectric Strength->1 min @ 500 VRMS

ESD Breakdown-20KV/MM

Contact Bounce-<5MS

Contact Resistance-<200 Ohms

Physical Properties of Silicone Rubber

Typical Physical Property Carbon Conductor Silicone Insulator

Specific Gravity@ 72°C 1.18 1.17

Durometer Hardness (Shore A) 65 ± 5 30-80 ± 5

Tensile Strength (KG/CM) >50 >70

Elongation (%) >100 >250

Tear Strength (KG/CM >9 >12

Linear Shrinkage (%) 3 – 5 3 – 4.5

Volume Resistivity (Ohm/CM) <5 1×1015

Dimensional Tolerances

Dimension Tolerances

Inches MM Inches MM

0 – .987 0 – 25 .005 .13

.998 – 1.460 25.1 – 37 .008 .20

1.461 – 1.971 37.1 – 50 .010 .25

1.972 – 2.444 50. – 1-62 .012 .31

2.445 – 2.956 62.1 – 75 .015 .38

2.957 – 3.428 75.1 – 87 .017 .44

3.429 – 3.940 87.1 – 100 .020 .50

3.491 – 5.908 100.1 – 150 .024 .62

5.909 – OVER 150.1 – OVER 0.5% 0.5%