NImbus Interface Solutions logo

Frequently Asked Questions

 

Q: How are membrane keypads made?
A: View: http://www.youtube.com/watch?v=z4RhBbJI2yg

 

Q: How long does it take to do drawings?
A: Usually we can provide drawings in two to five days depending on their complexity.

 

Q: How long does it take to make prototypes?
A: About 16 working days from when the drawings are approved.

 

Q: How long does it take to make production parts?
A: About 23 working days from when the prototypes are approved.

 

Q: How long does a keypad last?
A: This will depend on the type of keypad and the environment that it is used in. Typically, because of the simple construction, they will last for many years. We can design a keypad to meet requirements dictated by any special circumstances.

 

Q: How long does a tactile key last?
A: This will depend on the type of tactile dome used. The industry standard used to be 1,000,000 actuations, but now up to 5,000,000 actuations are available. Also we can supply Duraswitch Pushgate tactile keypads which has been tested to 30,000,000 actuations without failing!

 

Q: How much pressure does it take to actuate a tactile key?
A: Actuation forces from 40g to 500g are available.

 

Q: What are the operating temperatures for typical keypads?
A: From -40˚C to +85˚C

 

Q: What is the operating current for a typical keypad?
A: 1mA to 100mA, 1 watt max

 

Q: What is the operating voltage for a typical keypad?
A: 1 VDC to 30VDC

 

Q: How much does it cost for the one time tooling?
A: Depending on the keypad from $300.00 to $3,000.00 would be typical values. Obviously complicated keypads with elastomeric keys can cost more, up to $20,000.00.

 

Q: What type of connectors are required.
A: We can supply a wide variety of connectors from a simple tail with no connector (designed to be fitted into a ZIF type connector) to male or female locking connectors.

 

Q: Can LED's be incorporated into the keypad?
A: Yes, a wide selection of LED's are available.

 

Q: Can keypads be backlit?
A: Yes, three options are available: EL (Electroluminescent Lamps); FO (Fibre Optic) and LBF (LED Backlight Film).

 

Q: Does a keypad need to be embossed?
A: No flat key membrane switches are available.

 

Q: What is the difference between a membrane switch and a membrane keypad?
A: They are different names for the same product.

 

Q: What is the difference between a silicone rubber keypad and an Elastomeric Keypads?
A: They are different names for the same product.