EAO SECME Division

ETFL/TFL  Illuminated and non-illuminated sealed keypads

ETFL and TFL keypads employ a continuous silk screened polycarbonate front membrane for operation in hostile environments. Telephone-type 12-key and 16-key hexidecimal II layouts are offered. ETFL models feature flush mounting. Keypads are used for machine tool, process control, and other heavy duty industrial equipment applications. Keypads are sealed to IP 65 for industrial use Silk screened polycarbonate front membrane Metalic dome contacts for 1 watt power rating Telephone and hexidecimal II layouts Twelve and 16-key illuminated and non-illuminated More than 100,000 operations

ETFL/TFL Keypads
Description	12-key Telephone	16-key Hexidecimal II
ETFL, non-illuminated	ETFL 12155 00	ETFL 16255 00
ETFL, illuminated	ETFL 12155 04	ETFL 16255 04
TFL, non-illuminated	TFL 12150 00	TFL 16250 00
TFL, illuminated	TFL 12150 44	TFL 16250 44

Specifications
Contacts: Gold/gold	24 V/50 mA nominal 50V max. 10mV/1 mA min. 1 W nominal power
Contact circuit resistance	<200 M Ohms, 50 mV/10 mA
Insulation resistance	>1,000 M Ohms, 100 VDC
Operating force	4.0 N (ETFL), 6.0 N. (TFL)+35%
Travel	07 mm +0.3 mm
Operating life	>100,000 operations
Vibration resistance	2000/10 Hz, 10 cycles, 10 G
Mechanical shock resistance	100G (NFC 20708) 40G/100 (NFC 20724)
E.D.S. protection	5000 V
Operating temperature	-25 to +85°C
Storage temperature	-40 to +85°C
Front seal (when mounted)	IP 65
Damp heat	21 days (NFC 20703)
Dry heat @ 85°C	21 days
Saline mist	48 hours (NFC 20711)

12-key ETFL keypad
(16-key also available)

Connector output
(back view)
12-key

16-key TFL keypad
(12-key also available)

Key location for electrical wiring