| 
							 
							
							Momentary contact membrane switches bring together 
							extreme electrical accuracy and very long product 
							lifetimes in a very attractive package that looks as 
							good as it performs. 
							
							
							Some typical electrical characteristics are listed 
							below: 
							
								
									| 
									Electrical | 
									
									Minimum | 
									
									Maximum | 
								 
								
									
									
										
											| 
											Operating Voltage (V) | 
											
											1 | 
											
											50 | 
										 
										
											| 
											Operating Current (ma) | 
											
											.05 | 
											
											100 | 
										 
										
											| 
											Switch Power (W) | 
											
											.00025 | 
											
											1.5 | 
										 
										
											| 
											Contact Resistance (ohm) | 
											
											1 | 
											
											- | 
										 
										
											
											Insulation Resistance (Mohm) 
											After 96 hrs. @ 40oC, 
											95%RH | 
											
											1000 
											10 | 
											  | 
										 
										
											| 
											Breakdown Voltage (V)  | 
											  | 
											
											500 | 
										 
										
											| 
											Contact Bounce (msec) | 
											  | 
											
											~20 | 
										 
										
											| 
											Switch Capacitance (pf) | 
											  | 
											
											~25 | 
										 
										
											| 
											Life Expectancy (cycles) | 
											
											107 | 
											  | 
										 
									 
									 | 
								 
							 
							  
							
								
									| 
									Environmental | 
									
									Minimum | 
									
									Maximum | 
								 
								
									
									
										
											| 
											Shock (G) | 
											  | 
											
											50 | 
										 
										
											| 
											Vibration (G, 10-200 Hz) | 
											  | 
											
											20 | 
										 
										
											| 
											Operating Temperature (oC) | 
											
											-40 | 
											
											+85 | 
										 
										
											| 
											Storage Temperature (oC) | 
											
											-40 | 
											
											+85 | 
										 
										
											| 
											Humidity (%) | 
											  | 
											
											95 | 
										 
									 
									 | 
								 
							 
							  
							
								
									| 
									Mechanical | 
									
									Minimum | 
									
									Maximum | 
								 
								
									
									
										
											| 
											Actuation Force (oz) | 
											
											.2 | 
											
											20 | 
										 
										
											| 
											Switch Panel Size | 
											
											No Restrictions | 
										 
										
											| 
											Switch Size (in) | 
											
											~.375 x .375 | 
											  | 
										 
										
											| 
											Switch Spacing (in) | 
											
											~.123 | 
											  | 
										 
									 
									 | 
								 
							 
							
								
									| 
									    | 
								 
								
									| 
									 Click on the Speed 
									Quote link on the left to request a quote for a membrane 
									keypad. 
									 | 
								 
							 
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