255MINPUTTRANSF0RMER
Coils and Transformers
TRANSFORMER,AUDIO FREQUENCY
255MINPUTTRANSF0RMER
American Telephone And Telegraph Co
TRANSFORMER,AUDIO FREQUENCY
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Technical Characteristics
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Mounting Facility Quantity
4 single group
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Frequency Rating
300.0 hertz maximum single component
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Center To Center Distance Between Mounting Facilities Parallel To Length
3.500 inches nominal single mounting facility single center group
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Body Height
3.438 inches nominal
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Impedance Rating In Ohms
5800.0 nominal single component single primary
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Primary To Secondary Turn Ratio
1 to 224 single component
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Mounting Hole Diameter
0.250 inches nominal single group
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Mounting Method
flange single group and unthreaded hole single group
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Inclosure Type
fully inclosed
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Frequency Response Tolerance In Decibels (Non-Core)
-1.5/+1.5 single component
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Winding Function And Quantity
1 primary single component and 1 secondary single component
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Impedance Rating In Ohms
22.0 nominal single component single secondary
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Body Width
2.562 inches nominal
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Transformer Function
input
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Reliability Indicator
not established
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Terminal Type And Quantity
4 tab, solder lug
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Body Length
3.406 inches nominal
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Winding Operating Current
10.0 milliamperes maximum of standard range b and better drop siding single component single primary
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Winding Operating Current
175.0 milliamperes maximum of standard range b and better drop siding single component single secondary
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Center To Center Distance Between Mounting Facilities Parallel To Width
2.625 inches nominal single mounting facility single center group