24 X 48mm 4 digit totalising counter suitable for many OEM applications. Ideal for contact closure and reed switch signal inputs.
These miniature 4 digit totalising counters are suitable for either direct PCB mounting or panel mounting.
Features

Uses the latest CMOS circuitry to achieve very low quiescent current consumption
10mm black character high contrast LCD display
Backlit version HED251-T
Counts pulses up to 10Hz frequency
External reset input
UL and cUL/CSA approved
Specification

Supply Voltage
1.5VDC
Display
4 digit black LCD, 10mm characters with leading zero blanking
Count Range
0-9999
Count Input
Contact closure open collector input. 10Hz max, negative edge triggered, 0.7V threshold 1.8V max, 25mS min pulse width
Reset Input
Negative edge triggered, 0.7V threshold, 15mS minimum pulse length, TTL/CMOS Compatible
Operating Temp
-10°C to +50°C
Storage Temp
-20°C to +70°C
Ordering Information

HED251-T