Model: 638-043

Audio Frequency Transformer

Properties:

Reliability Indicator
Not established
Mounting Hole Diameter
0.138 inches single group
Transformer Function
Output
Impedance Rating In Ohms
2000.0 single component 2nd secondary
Impedance Rating In Ohms
24.0 single component single primary
Impedance Rating In Ohms
3.2 single component 1st secondary
Frequency Rating
300.0 hertz single component and 3.0 kilohertz single component
Body Length
2.000 inches
Body Width
1.750 inches
Body Height
1.625 inches
Maximum Operating Temp
125.0 degrees celsius
Distance Between Mounting Facility Centers
2.375 inches single mounting facility single center group
Inclosure Type
Fully enclosed
Mounting Facility Quantity
2 single group
Mounting Method
Unthreaded hole single group
Winding Function And Quantity
1 primary single component and 2 secondary single component
Winding Operating Current
1.0 amperes ac single component single primary
Winding Operating Current
75.0 milliamperes ac single component 2nd secondary
Terminal Type And Quantity
7 tab, solder lug
NSN
5950-00-996-5216
Part Number
638-043
Description
Transformer,audio Frequency
CAGE
13848

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 638-043 NSN 5950-00-996-5216

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:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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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