ERJM1W Datasheet, PDF (7/11 Pages) Panasonic Semiconductor – Low Resistance Value Chip Resistor

Subject
Low Resistance Value Chip Resistor
Part No.
ERJM1W
Spec. No.
151-RJM-E2W00A
10 - 7
12. Precautions in Handling Resistors
! Precautions in Handling Resistors
(1) This specification shows the quality and performance of a unit component. Before adoption,
be sure to evaluate and verify the product mounting it in your product.
(2) We take no responsibility for troubles caused by the product usage that is not specified in this
specification.
(3) In traffic transportation equipment(trains, cars, traffic signal equipment, etc.), medical
equipment, aerospace equipment, electric heating appliances, combustion and gas
equipment, rotating equipment, disaster and crime preventive equipment, etc. in cases where
it is forecast that the failure of this product gives serious damage to the human life and
others, use fail-safe design and ensure safety by studying the following items to
•Ensure safety as the system by setting protective circuits and protective equipment.
•Ensure safety as the system by setting such redundant circuits as do not cause danger by
a single failure.
(4) When a doubt shall be occurred about safety for this product, be sure to inform us rapidly,
operate your technical examination.
(5) The products in this specification are intended for use in general standard applications for
general electronic equipment(AV products, household electric appliances, office equipment,
information and communication equipment, etc.); hence, they do not take the use under the
following special environments into consideration. Accordingly, the use in the following
special environments, and such environmental conditions may affect the performance of the
products; prior to use, verify the performance, reliability, etc. thoroughly
1) Use in liquids such as water, oil, chemical, and organic solvent
2) Use under direct sunlight and in outdoor and dusty atmospheres
3) Use in places full of corrosive gases such as sea breeze, Cl₂, H₂S, NH₃, SO₂, AND NO_X.
4) Use in environment with large static electricity and strong electromagnetic waves.
5) Where the product is close to a heating component, and where an inflammable such as
a polyvinyl chloride wire is arranged close to the product.
6) Where the resistor is sealed and coated with resin, etc.
7) Where water or a water-soluble detergent is used in cleaning free soldering and in flux
cleaning after soldering. (Pay particular attention to a water-soluble flux.)
(6) If transient load (heavy load in a short time) like pulse is expected to be applied, carry out
evaluation and confirmation test with resistors actually mounted on your own board. When
the load more than rated power is applied under the load condition at steady state, it may
impair performance and/or reliability of resistor. Never exceed the rated power.
(7) The resistor temperature is dependent on the circuit board and pattern to be used, the heat
from the neighboring components and ambient temperatures. The resistor temperature may
rise up to 170deg.C (upper limit of Category Temperature Range (Operating Temperature
Range)) or higher even if you keep the rated power. Prior to use, be sure to evaluate the
product mounted on your own board, and then use it under the condition not to damage the
board and the neighboring components. When the product shall be used under special
condition, be sure to ask us in advance.
(8) Halogen type (Chlorine type, Bromine type, etc.) or other high-activity flux is not recommended
as the residue may affect performance or reliability of resistors.
(9) When soldering with soldering iron, never touch the body of the chip resistor with a tip of the
soldering iron. When using a soldering iron with a tip at high temperature, solder for a time
as short as possible. (3 seconds or less up to 350deg.C)
(10)Avoid physical shock to the resistor and nipping of the resistor with hard tool (a pair of pliers
or tweezers) as it may damage protective film or the body of resistor and may affect resistor's
performance.
(11)Keep the rated power and ambient temperature within the specified derating curve.
(12)Avoid immersion of chip resistor in solvent for a long time. Prior to use, verify the
performance.
PANASONIC ELECTRONIC DEVICES CO.,LTD.