Model: 25A157

Audio Frequency Transformer

Properties:

Reliability Indicator
Not established
Center To Center Distance Between Mounting Facilities Parallel To Length
3.688 inches single mounting facility single center group
Center To Center Distance Between Mounting Facilities Parallel To Width
2.688 inches single mounting facility single center group
Impedance Rating In Ohms
7.5 single component 3rd secondary
Impedance Rating In Ohms
7.5 single component 4th secondary
Impedance Rating In Ohms
125.0 single component 1st secondary
Impedance Rating In Ohms
125.0 single component 2nd secondary
Impedance Rating In Ohms
125.0 single component all primary
Frequency Rating
10.0 hertz single component and 40.0 kilohertz single component
Maximum Transformer Power Rating
20.0 watts single component
Primary To Secondary Turn Ratio
1 to 1 single component
Winding Shielding Method
Internal shield grounded to core and brought out to terminal single component
Body Length
4.438 inches
Body Width
3.500 inches
Body Height
4.187 inches
Maximum Operating Temp
70.0 degrees celsius
Inclosure Type
Fully enclosed
Mounting Facility Quantity
4 single group
Mounting Method
Threaded hole single group
Winding Function And Quantity
2 primary single component and 4 secondary single component
Thread Size
0.164 inches single group
Thread Series Designator
Unc single group
Terminal Type And Quantity
19 solder stud
NSN
5950-00-755-0009
Part Number
25A157
Description
Transformer,audio Frequency
CAGE
96256

A transformer which is designed so that part or all of its range of operating frequencies is 20 kilohertz (kilocycles) and below. The maximum 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.

Part 25A157 NSN 5950-00-755-0009

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00780
FIIG:
A058B0
Concept No.:
1
App. Key:
F
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
U
ESD:
ESD:
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
7.5000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
063420
UFC:
35355
LTL:
RATING VARIABLE
LCL:
--
WCC:
595
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8548900100
  • SITC: 77813
  • End Use: Electric apparatus
  • NAICS: 335999
  • USDA: 1

Freight Class: Electrical parts of machinery or apparatus not specified or included elsewhere in chapter 85

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