Product Lines

50 Series
99 Hours 59 Minutes Countdown Timer Module with Keys

50T-A0H-HM

Hours and Minutes Countdown Timer Module

Product Descriptions
We have greatest experience and technique in manufacturing any kind of Digital Clock, Alarm Clock, Pill Reminding Clock, Job Reminding Clock, Target Day Countdown Clock, Calendar Clock, World Time Clock, Countdown Timer, and etc.

We also design and manufacture new models / products according to buyer's request.
Your any requirement is welcome.

This is a 99 hours 59 minutes countdown timer module with keys. 1.50 VDC operated, 4 digits with 16 mm height, 99 hours 59 minutes as maximum capacity time counter. This module includes four buttons, start and stop at the left, then the settings of hour and minute, and reset at right. Many kinds of output and control poles are designed to provide user comprehensive applications, such as power on/off control of electrical device, security device control, automatically alarm system activation. Many other versions are available. Please refer to the last paragraph for Versions List. UM4 battery mounted on the rear side of module.

The display format is especially designed to change to an appropriate format automatically depending to current counting situation, i.e., HH:MM -> MM:SS.

This module also provides an open collector output pole to allow people use it to control other power operated device.

Versions for various maximum countdown period:
  • 50T-A0H-MS: 99M59S
  • 50T-A0H-HM: 99H59M
  • 50T-A0H-DH: 99D23H
  • 50T-A0H-DD : 9999D
  • Also available in many other versions (please ask if need)
  • Chronometer ( count up to 9999 days) available also
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specification of 50T-A0H-HM
Specifications

  1. Capacity: 99 minutes 59 seconds
  2. Resolution: 1 second ( display automatically changed to an appropriate formate)
  3. Setting Interval: 1 hour (minimum)
  4. Physical Size
    • PCB Size: 70 x 51.2 mm
    • Plastic Frame: 58 x 40 mm
    • Thickness: 7 mm (battery not included )
  5. LCD Display
    • Screen Size: 49.3 x 22.3 mm
    • Number of Digit: 4 digits
    • Digit Height: about 16.00 mm
  6. Button:tact s/w, 3 to 4 keys, on the front
  7. Power Source: +1.5 VDC, use one piece of UM4 (AAA), battery holder mounted, but battery not included
  8. Technical Data
    • Operating Voltage: +1.20 ~ + 1.70 volts
    • Typical Current Drain: 3 μA in normal condition; 400 μA at alarm mode
    • Operation Temperature: -10 ~ +50 °C
    • Storage Temperature: -20 ~ +60 °C
    • Aural Alert Methods:
      1. Regular audible alert for 1 minute at 4 K Hz
      2. Power Saving Endless Alert circuit (called PSEA circuit), beep six times then wait for 10 seconds and repeat again; never stop unless the “Stop” key depressed
    • Output Pole
      1. B1 Pole - Repeat 0.5 sec ON and 2.5 sec OFF for 6 times, then wait for 10 seconds and repeat again; never stop unless the "Stop" button depressed
      2. B2 Pole - After countdown to zero, repeat 1 sec ON, 1 sec OFF, for one minute
      3. B3 Pole - Level, 1.5 VDC, 100μA, for 1 minute after timer countdown to zero
      4. Light Pole - Level, 1.5 VDC, when timer starts to counting; then turn to 0 VDC when counts down to zero (for non-count up version only)

Features

  • Option to include count up feature
  • Option to select Power On start counting
  • Option to select Power Saving Endless Alert (PSEA)
  • Option to select Output poles

Main Products

  • Digital Clock
  • Countdown Timer
  • AC On/Off Programmable Timer
  • Thermometer