SFH-1215A Sony, SFH-1215A Datasheet - Page 8

• Manufacturer Part Number: SFH-1215A
• Description: (SFH-xxxxA) SC Protector
• Manufacturer: Sony

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7. Relations between the fusion state and the operation mode
7.1. Heater operation
7.2. Current operation
“The operation mode” can be estimated by the fusion state of the fuse element.
it is the same operation mode as the conventional electric current fuse. When the current
exceeds 50A, two positions are cut occasionally.
like bursting”.
operation. Because the fuses are heated until the charge to the heater is stopped.
heater stops by cutting of one side of the middle electrode.
In the case of over-current operation, basically, “only one position of the fuse is cut” because
For the current operation, it is characterized as “The cutting position isn't fixed”, “It cuts
In the case of over-voltage , “Both two sides of the middle electrode” are fused by the heater
Only one side may be cut when the protection circuit is designed so that charging to the
For the heater operation, it is characterized as “Fuses like flow into the middle electrode.”
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<Features of the heater operation>
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<Features of the current operation>
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Fuses like flow into the middle electrode
Both two side (or one side) is fused
Cutting position isn’t fixed
It cuts like bursting
One position is cut basically (Over 50A,
two positions are cut occasionally)