#678A Grid Modulation Transformer | Coils And Transformers

678A

Audio Frequency Transformer

NSN 5950-00-645-6364

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
006456364

Product Technical Spec.

Reliability Indicator:
Not established
Transformer Function:
Input
Impedance Rating In Ohms:
40000.0 single component single primary
Impedance Rating In Ohms:
80000.0 single component single secondary
Frequency Rating:
25.0 hertz single component
Primary To Secondary Turn Ratio:
1 to 1-4/10 single component
Winding Shielding Method:
Internal shield grounded to inclosure single component
Body Length:
1.750 inches
Body Width:
1.750 inches
Body Height:
3.500 inches
Distance Between Mounting Facility Centers:
0.875 inches single mounting facility single center group
Inclosure Type:
Hermetically sealed
Mounting Facility Quantity:
2 single group
Mounting Method:
Threaded stud single group
Winding Function And Quantity:
1 primary single component and 1 secondary single component
Thready Qty Per Inch (tpi):
40 single group
Thread Size:
0.112 inches single group
Thread Series Designator:
Unc single group
Terminal Type And Quantity:
4 tab, solder lug
NSN:
5950-00-645-6364
Item Name:
Grid Modulation Transformer
Cage Code:
06KW9

Cross Referenced Parts

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
678A
Cage Code:
64959
RNCC:
3
RNVC:
9
RNAAC:
TX
Status:
A
MSDS:
SADC:
Part Number:
678A
Cage Code:
70408
RNCC:
5
RNVC:
9
RNAAC:
TX
Status:
A
MSDS:
SADC:
Part Number:
678ATRANSF0RMER
Cage Code:
64959
RNCC:
5
RNVC:
9
RNAAC:
TX
Status:
A
MSDS:
SADC:
Part Number:
678A
Cage Code:
3B4M0
RNCC:
3
RNVC:
2
RNAAC:
ZZ
Status:
A
MSDS:
SADC:

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Pricing & Availability

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Catalog Drilldown
--- Electrical And Electronic Equipment Components
------ Coils And Transformers
--------- Audio Frequency Transformers
------------ P/N 678A

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Last Updated: 07/20/2025