– EX3 –

Safety Precautions (Common precautions for CR Combinations, Fuses, and Sensors)

• When using our products, no matter what sort of equipment they might be used for, be sure to make a written

agreement on the specifications with us in advance. The design and specifications in this catalog are subject

to change without prior notice.

• Do not use the products beyond the specifications described in this catalog.

• This catalog explains the quality and performance of the products as individual components. Before use, check

and evaluate their operations when installed in your products.

• Install the following systems for a failsafe design to ensure safety if these products are to be used in equipment

where a defect in these products may cause the loss of human life or other significant damage, such as damage to

vehicles (automobile, train, vessel), traffic lights, medical equipment, aerospace equipment, electric heating

appliances, combustion/gas equipment, rotating equipment, and disaster/crime prevention equipment.

✽ Systems equipped with a protection circuit and a protection device

✽ Systems equipped with a redundant circuit or other system to prevent an unsafe status in the event of a single fault

(1) Precautions for use

• These products are designed and manufactured for general and standard use in general electronic equipment

(e.g. AV equipment, home electric appliances, office equipment, information and communication equipment)

• These products are not intended for use in the following special conditions. Before using the products,

carefully check the effects on their quality and performance, and determine whether or not they can be used.

1. In liquid, such as water, oil, chemicals, or organic solvent

2. In direct sunlight, outdoors, or in dust

4. In an environment where strong static electricity or electromagnetic waves exist

5. In an environment where these products cause dew condensation

6. Sealing or coating of these products or a printed circuit board on which these products are mounted, with

resin or other materials

• These products generate Joule heat when energized. Carefully position these products so that their heat will

not affect the other components.

• Carefully position these products so that their temperatures will not exceed the category temperature range due

to the effects of neighboring heat-generating components. Do not mount or place heat-generating components

or inflammables, such as vinyl-coated wires, near these products (except Thermal Cutoffs).

• Note that non-cleaning solder, halogen-based highly active flux, or water-soluble flux may deteriorate the

performance or reliability of the products.

• Carefully select a flux cleaning agent for use after soldering. An unsuitable agent may deteriorate the performance

or reliability. In particular, when using water or a water-soluble cleaning agent, be careful not to leave water

residues. Otherwise, the insulation performance may be deteriorated.

(2) Precautions for storage

The performance of these products, including the solderability, is guaranteed for a year from the date of arrival

at your company, provided that they remain packed as they were when delivered and stored at a temperature

of 5 °C to 35 °C and a relative humidity of 45 % to 85 %.

The performance of Combinations(EMI Filters) is guaranteed for 6 months or a year from the outgoing inspection

date indicated on the packages, provided that they are stored at a temperature of -5 °C to +40 °C and a relative

humidity of 40 % to 60 %. Check the guarantee period in the specifications. The performance of Thermal

Cutoffs is guaranteed for a year from the outgoing inspection date indicated on the packages, provided that

they are stored at a temperature of -10 °C to +40 °C and a relative humidity of 30 % to 75 %.

Even within the above guarantee periods, do not store these products in the following conditions. Otherwise,

their electrical performance and/or solderability may be deteriorated, and the packaging materials (e.g. taping

materials) may be deformed or deteriorated, resulting in mounting failures.

2. In direct sunlight

<Package markings>

Package markings include the product number, quantity, and country of origin.

In principle, the country of origin should be indicated in English.

Mar. 2005