4 Digit Programmable LED Countdown Timer (99 Min 59 Sec) 4 Digit Programmable LED Countdown Timer (99 Min 59 Sec)
Up to 99 minutes 59 seconds duration programmable 4-digit LED countdown timer. Open collector output. 5 selectable operating modes. Start, Stop & Reset inputs... Electronics > Circuit Boards & Components > Printed Circuit Boards > Development Boards 3148T9KT 3148T9KT 3148T9KT 25.96 Quasar Electronics Limited
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4 Digit Programmable LED Countdown Timer (99 Min 59 Sec)

4 Digit Programmable LED Countdown Timer (99 Min 59 Sec)
4 Digit Programmable LED Countdown Timer (99 Min 59 Sec)
4 Digit Programmable LED Countdown Timer (99 Min 59 Sec)
4 Digit Programmable LED Countdown Timer (99 Min 59 Sec)
View AS3148T9KT Product Video
AS3148T9KT - 4 Digit Programmable LED Countdown Timer (99 Min 59 Sec)
Ability Level Rating 3: IntermediatePre-Assembled and Kit versions availableMade in Britain
View Quasar Electronics Kits Modules Range

Up to 99 minutes 59 seconds programmable 4-digit LED countdown timer with open collector output. The board display counts down in minutes and seconds. The board offers 5 operating modes:

  • Timer Stop. Output Hold. Hardware reset
  • Timer Overrun. Output Hold. Hardware reset
  • Timer Stop. Pulse Output. Auto Reset
  • Timer Overrun. Pulse Output. Hardware reset
  • Output ON during countdown. Timer stop. Output off. Auto reset

The board has an active low open collector transistor output (NPN 100mA, 30V max.). This can be used to drive a buzzer, relay, our 3156 relay board or 3141 delay timer board.

Connections: DC IN, RESET, OUTPUT, STOP and START are brought out to a 10-way header strip for easy connection. START and STOP buttons are also provided on the board.

Custom Firmware Design Service

If you would like the timer to function differently please Contact Us with your requirements.

Specifications
Supply9...15V dc
e.g. Order Code 660.446UK with connector 777.001UK
Current30 - 50mA max.
InputsStart / Stop / Reset (Active low - see documentation)
Output TypeOpen collector NPN transistor, 100mA @ 30V max
(see Help Sheet)
Time Delay1 Second to 100 Minutes
Display4-digit 7-segment with decimal point, 14mm RED LED
Accuracy+/- 1.8 seconds / hour
Settings memoryN/A - settings are lost when power is removed
Board Dimensions~ 51 x 66 x 12 mm (excluding header pins)
Connections10 pin SIL header
Product FormatsSELF-ASSEMBLY Electronic Kit (KT) or
PRE-ASSEMBLED Electronic Module (AS) Product Formats Info
Documentation3148T9 User Manual
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AS3148T9KT - 4 Digit Programmable LED Countdown Timer (99 Min 59 Sec) Selection

SELF-ASSEMBLY 4 Digit Programmable Countdown Timer KIT (99 Min 59 Sec)
Quasar 3148T9KT - SELF-ASSEMBLY 4 Digit Programmable Countdown Timer KIT (99 Min 59 Sec)
£21.63 Exc VAT, £25.96 Inc VAT | In Stock (Our UK Warehouse).
PRE-ASSEMBLED 4 Digit Programmable Countdown Timer Board (99 Min 59 Sec)
Quasar AS3148T9 - PRE-ASSEMBLED 4 Digit Programmable Countdown Timer Board (99 Min 59 Sec)
£29.96 Exc VAT, £35.95 Inc VAT | In Stock (Our UK Warehouse).

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