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Transmitter Synchro

Model / MPN: M20708/78D-002 | NSN: 5990-01-013-4569
ITAR Registered seal

A synchro consisting of a stator and rotor inductively coupled. The electrical output of the stator into a receiver synchro, a control transformer or differential synchro is dependent upon the position of its rotor. Does not include variable resistors, goniometers, variable transformers, or items with dials.

Product Details
NATO Stock Number
5990-01-013-4569
Sold in multiples of
EA
DEMIL
NO
Body Material
Aluminum
Body Style
Standard round a
Pilot Diameter
0.5000 inches
Overall Length
1.7900 inches
Flange Diameter
0.7500 inches
Flange Thickness
0.0620 inches
Undercut Diameter
0.6870 inches
Undercut Width
0.0620 inches
Shaft Diameter
0.0900 inches single shaft
Shaft Length
0.5000 inches single shaft
Fragility Factor
Moderately rugged
Maximum Tempurature Rise
8.5 degrees celsius
Body Size
8
Rotor Input Voltage Rating In Volts
26.0
Frequency In Hertz
400.0
Rotor Input Current Rating
153.0 milliamperes
Rotor Input Electrical Power Rating
70.0 milliwatts
Zro Impedance Magnitude In Ohms
Between 170.00 and 215.00
Zro Impedance Angle In Deg
Between 77.50 and 80.50
Zss Impedance Magnitude In Ohms
Between 11.00 and 15.00
Zss Impedance Angle In Deg
Between 9.00 and 15.00
Phase Shift Angle In Deg
8.500 input to output
Maximum Fundamental Null Voltage In Millivolts Per Volt
20.00 output
Maximum Total Null Voltage Output In Millivolts Per Volt
30.00
Electrical Error Angular Range In Minutes
-7.0/+7.0
Actuator Friction Torque At Minus 55 Deg Celsius
0.04 inch-ounces
Pilot Length
0.0400 inches
Mounting Surface To Terminal End Distance
1.2400 inches
Terminal Location
Rear
Shaft Slot Depth
0.0250 inches single shaft
Shaft Slot Width
0.0200 inches single shaft
Shaft Type
Round, slotted single shaft
Transformation Ratio
0.454 rotor to stator
Test Data Document
81349-mil-s-20708 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Terminal Type And Quantity
5 wire lead
Specification Data
81349-mil-s-20708/78 government specification
M20708/78D Series Parts

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M20708/78D-002 Cross Reference
  • M20708/78-02C
  • MIL-S-20708/78
  • 26V-08CX4C