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LT-71, LT-101

REGULATED 28/14VDC TO DC POWER CONVERTER
FAA TSO-C71

The LT-71/ LT-101 Series is a pulse width-modulated DC to DC converter that provides regulated power.

The converter transforms an unregulated 28 VDC to a regulated and fixed DC output.

The Model LT-71/ LT-101 Series is primarily designed to supply regulated fixed DC voltage to critical communication, navigation and digital equipment.

Features:

  • State of the art design for regulation and positive logic for output overvoltage protection.
  • Other voltage control range is available.
  • The Model LT-SERIES is serviceable, small and lightweight (33 watts per pound and 1.7 watts per cubic inch).
  • Designed to meet various applicable portions MIL-STD 704 notice 3, MIL-STD-202 and MIL-T-5422F class 1A.

Specifications

Input Voltage
28 VDC nom., 20 TO 40 VDC.
Output Voltage
See Table Below.
Regulation
2% for line, 2% load and 2% temperature.
Output Ripple
50 mVp-p.
Protection (Overload)
Input current foldback and output current limits when overload exceeds approximately 125% of rating
Protection (Overvoltage)
Output voltage is limited to approximately 125% of rating.
Temperature
-55°C to +71°C (sufficient cooling required @ +71°C ambient)
Altitude
55,000 Feet.
Size
2.3" H x 2. 4" W x 6.8" L.
5.7 cm H x 6 cm W x 17 cm L
Weight
1.5 lbs. (683 grams).
Detail Specifications: LT-71 LT-71A LT-101A-BP31
Max VA Rating 112 112 100
Input Voltage (VDC) 26 to 40 26 to 40 20 to 40
Input Current (ADC)
@ 28 VDC In
4.7 4.7 4.2
Output Voltage (VDC) 14 14 0 to 28
Output Current (ADC) 8.0 8.0 3.6
Efficiency (%) 80 80 84

 

Connectors:

Model Mating Plug Receptacle
LT-71 MS3106A14S-5S-X MS3102A14S-5P-X
LT-71A KPT-06B-14-5S PT-02E-14-5P
LT-101A-BP KPT-06B-14-5S PT-02E-14-5P
LT-71B MS3106A14S-5S-X MS3102A14S-5P-X
 
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