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Part #: LT-100






Reg. DC to DC Converter Light Dimmer

Part Number :

  • Pulse width-modulated DC to DC converter that provides regulated DC power
  • Transforms an unregulated 28 VDC to a regulated and adjustable DC voltage output via a remote control potentiometer
  • Primarily designed to control the light intensity of incandescent bulbs in aircraft lighting
  • State of the art design for regulation and positive logic for output overvoltage protection
  • Small and lightweight
  • Maximum output voltage is adjustable with an internal trim pot
  • Designed to meet various applicable portions MIL-STD 704 notice 3, MIL-STD-202C and MIL-T-5422F class 1A
  • Control circuitry includes use of PWM integrated circuit for voltage regulation and overload current limit
  • Protection circuitry includes a low/high input voltage shutdown, low/high output frequency shutdown, output overvoltage limit, and output short circuit current limit
  • Fault monitor circuitry includes fault indication upon high/low input voltage, high/low output voltage and high/low output frequency conditions


Dimensions: 2.3" H x 2. 3" W x 5.8" L Weight: 1.5 lbs.
Input Voltage: 28 VDC nom., 20 TO 40 VDC Input Current: 4.2 amps typical at 28VDC
Output Voltage: 0 to 28 Output Current: 3.6 amps DC
MAx VA Rating: 100 TSO: C71
Regulation: 2% for line, 2% load and 2% temperature Output Ripple: 25 mVp-p
Altitude: 55,000 ft. Temperature: -55°C to +71°C (sufficient cooling required @ +71°C ambient)
Overload Protection: Input and output current pulse when overload exceeds approximately 125% of rating Overvoltage Protection: Output voltage is limited to approximately 125% of rating even though remote control rheostat opens or shorts, or internal failure occurs.


- Reg. DC to DC Converter Light Dimmer

NSN: 7510-00-105-3090

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