ICP-S データシートの表示（PDF） - ROHM Semiconductor

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ICP-S

Overcurrent Protection Elements

ROHM Semiconductor 

Overcurrent Protection Elements

ICP-S Technical Manual

4. Selection Flowchart

Type of steady-state current?

DC

Pulse Surge current Inrush current

included

included

Check with the I2t characteristics graph.

Does the steady-state

No

current not exceed the rated

current of the ICP?

Yes

Is the rated voltage (i.e., the

Yes

open-circuit voltage when the ICP

breaks the current) 50 V or below?

No

Is the breaking current (the maximum

Yes

abnormal current) within a range

of 2x to 10x of the ICP's rated current?

Change the ICP model

to satisfy the condition.

Lower the

open-circuit voltage.

Change the ICP model to

satisfy the condition.

No

The selection is OK.

List of ICP-S Models

TYPE

ICP-S0.5

ICP-S0.7

ICP-S1.0

ICP-S1.2

Rated current (A)

0.5

0.7

1.0

1.2

Breaking current (A)

1.0 to 5.0

1.4 to 7.0

2.0 to 10.0

2.4 to 12.0

The I2t-t characteristic graph (i.e., the Joule integral sheet) provides necessary data used to check

how the life of the ICP-S is influenced by heat cycling or mechanical fatigue caused by repetitive

current pulses.

Rev.A

4/13

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