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Worldwide distributor of NSN parts and consumables located in the USA.

Audio Frequency Transformer

Model / MPN: 4994 | NSN: 5950-00-021-1608
ITAR Registered seal

A transformer which is designed so that part or all of its range of operating frequencies is 20 kilohertz (kilocycles) and below. The value may extend into the radio frequency range. It is generally used in the input, output, amplifier, or oscillator stages of audio and sonar devices.

Product Details
NATO Stock Number
5950-00-021-1608
Sold in multiples of
DEMIL
NO
Reliability Indicator
Not established
Center To Center Distance Between Mounting Facilities Parallel To Length
1.250 inches single mounting facility single center group
Center To Center Distance Between Mounting Facilities Parallel To Width
1.125 inches single mounting facility single center group
Overall Height
2.813 inches
Impedance Rating In Ohms
100.0 single component 1st secondary
Impedance Rating In Ohms
10000.0 single component 2nd secondary
Impedance Rating In Ohms
125.0 single component all primary
Winding Shielding Method
Internal shield grounded to core single component
Body Length
1.750 inches
Body Width
1.625 inches
Body Height
2.438 inches
Inclosure Type
Fully enclosed
Mounting Facility Quantity
4 single group
Mounting Method
Threaded stud single group
Winding Function And Quantity
2 primary single component and 2 secondary single component
Thready Qty Per Inch (tpi)
32 single group
Thread Size
0.138 inches single group
Winding Operating Current
20.0 microamperes dc single component all primary
Winding Operating Current
30.0 microamperes dc single component 1st secondary
Thread Series Designator
Unc single group
Terminal Type And Quantity
8 solder stud

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4994 Cross Reference
  • TTI-4994
  • A-9292