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50 series – UM4 Battery Holder Mounted Alarm Clock Module
clock module with countdown timer - 99M59S


clock module with countdown timer - 99M59S

Product Descriptions
This is clock module with countdown timer. The clock mode shows hour and minute. Both 12 hr or 24 hr system are available upon request. For the timer mode, the maximum countdown capacity is 99 minutes 59 seconds. Two other optional capacities 99 hours 59 minutes, and 99 days 23 hours are available too.

Mounted with a UM4 (or AAA) battery holder at the rear side, this clock and timer module is powered with 1.50V, and operated with 6 tact switches, each 3 for both clock and timer. The key operation is simple and user friendly.

The timer is featured with audible alarm when counting down to zero. Piezo buzzer with amplified circuit is built in the module to provide high volume of beep sound. Along with audible alarm, the full LCD display keeps blinking always when counting down reaches zero, unless the "stop" button is depressed.

Four digits LCD display with 16 mm digit height shows real time or countdown timer by depressing of each mode button.

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  1. Physical Size
    • PCB Size: 70 x 51.2 mm
    • Plastic Frame: 58 x 40 mm
    • Thickness: 7 mm (battery not included )
  2. LCD Display
    • Screen Size: 49.3 x 22.3 mm
    • Number of Digit: 4 digits
    • Digit Height: about 16.00 mm
  3. Button: tact s/w, 6 keys, on the front
  4. Power Source: +1.5VDC, use one piece of UM4(AAA), battery holder mounted, but battery not included
  5. Technical Data
    • Operating Voltage: +1.20 ~ + 1.70 volts
    • Typical Current Drain: 3μA in normal condition; 400 μA at alarm
    • Operation Temperature: -10 ~ +50 °C
    • Storage Temperature: -20 ~ +60 °C
    • Output
      - Audible alarm, 4 K Hzs for 1 minute
      - Level, 1.5 VDC, 100μA, for 1 minute
  • Regular clock: hour, and minute
  • Available in both 24-hour and 12-hour version
  • Resolution: 1 second
  • Automatic switch of LCD format during counting process
  • Alert Method: piezo buzzer for 1 minute
Versions of Available Capacity:
50D-A0N-MS countdown capacity 99M59S
50D-A0N-HM countdown capacity 99H59M
50D-A0N-DH countdown capacity 99D23H
Other Applications
VOSCA is a professional manufacturer offering Digital Clock/Timer and Modules. Our capabilities include IC Programming, Plastic Housing Design/Molding/Injection, PCB Layout, PCB Assembly, SMT Assembly, DIP Assembly, and Final Assembly with an extensive knowledge and latest technology.

VOSCA integrates her experiences and innovative assembly to deliver market-leading digital timepieces products, from product assembly through enclosures to testing and packaging. . Maximum counting period of timer is 99 minutes, and 59 seconds. 6 tact switches are included. Initial power on state is real time clock, but can be changed to timer upon request. One piece of UM4 (AAA) battery holder is provided. The timer mode provides aural alarm feature.
Main Products
Digital Clock, Countdown Timer, AC On/Off Programmable Timer, and Thermometer