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Komatsulite™ Mini-Breakers Application Note

12/15 • e/C1564

LC Series

HC Series

KCA Series

NR-C Series

NR-A Series

Given the mechanical characteristics of the mini-breaker Thermal Cut Off device, certain

precautions are essential in its handling. The terminals are made of thin copper alloy with right

angle edges and should be handled with finger cots and tweezers. This helps avoid both finger

injury and discoloration of the terminals from direct contact with the bare finger. The body

of the mini-breaker is composed of plastic parts that can be damaged or result in increased

resistance if clamped or dented with tools. Similar damage to the body can result from excess

stress on the mini-breaker and body terminals. Regardless of whether the mini-breaker body

is welded with direct welding or series welding, the selection of a suitable jig can help ensure

there is no excess stress.

Komatsulite™ mini-breakers currently are not intended for a surface mount processing or for

reflow soldering. Rather, resistance or laser welding are suggested for connecting the nickel

tabs to the existing mini-breakers. For safety, the device must be used within the electrical

rating specified in the data sheet. This helps ensure the switching and activation life cycle is not

impacted and the mini-breaker arm remains robust. The mini-breaker should be mounted to

the hottest area of the device to ensure it transfers heat effectively. Once mounted, the mini-

breaker and body terminals should not move. Vibration and heat may cause damage to the

mini-breaker body or an increase in resistance. The mini-breaker is intended for use in normal

environments and should not be exposed to extreme conditions, temperatures, fluids, gases, or

static electric charges.

DEVICE HANDLING RECOMMENDATIONS