KOA 510Ω Metal Film Resistor 0.25W ±1% MFS1/4CC5100F

RS Stock No.:
Mfr. Prt No.:

Technical Reference

Legislation and Compliance

RoHS Certificate of Compliance

RS Components
RoHS Certificate of Compliance

EU Directives 2011/65/EU and 2015/863 restrict the use of the 10 substances below in the manufacture of specified types of electrical equipment.

Whilst this restriction does not legally apply to components, it is recognised that component “compliance” is relevant to many customers.

RS definition of RoHS Compliance:

  • The product does not contain any of the restricted substances in concentrations and applications banned by the Directive,
  • and for components, the product is capable of being worked on at the higher temperatures required by lead–free soldering

The restricted substances and maximum allowed concentrations in the homogenous material are, by weight:

PBB (Polybrominated Biphenyls)0.1%
PBDE ( Polybrominated Diphenyl Ethers)0.1%
Hexavalent Chromium0.1%
DEHP (Bis (2-Ethylhexl) phthalate)0.1%
BBP (Benzyl butyl phthalate)0.1%
DBP (Dibutyl phthalate)0.1%
DIBP (Diisobutyl phthalate)0.1%

The supplier of the item listed below has informed RS Components that the product is "RoHS Compliant".

RS Components has taken all reasonable steps to confirm this statement. Information relates only to products sold on or after the date of this certificate.

Compliant Product Details
RS stock number 4911308
Product description KOA 510Ω Metal Film Resistor 0.25W ±1% MFS1/4CC5100F
Manufacturer / Brand KOA
Manufacturer part number MFS1/4CC5100F

RS Components Ltd, Birchington Road, Corby, Northants, NN17 9RS, UK

Statement of Conformity

RS Components
Statement of Conformity

This statement confirms that the product detailed below complies with the specifications currently published in the RS media and has been subject to the strict quality conditions imposed by RS Components’ internal management systems. Furthermore and where applicable, it confirms that all relevant semiconductor devices have been handled and packed under conditions that meet the administrative and technical requirements of ANSI/ESD S20.20 and EN61340-5-1 electrostatics control standards.

Compliant Product Details
RS stock number 4911308
Product description KOA 510Ω Metal Film Resistor 0.25W ±1% MFS1/4CC5100F
Manufacturer / Brand KOA
Manufacturer part number MFS1/4CC5100F

The foregoing information relates to product sold on, or after, the date shown below.


Date Apr 15, 2024

RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132

Country of Origin: JP

Product Details

Axial, 0.25W - 0.4W

High stability metal film resistors. Extremely low current-noise level with low temperature coefficient and close tolerance.

Metal Film Resistor, 0.25 W, 1% (1/8W Type), MFS1/4C Series

The MF series metal film fixed resistor from KOA is a range of precision resistors with axial terminations. Various resistance values are available for this series. Constructed with lead-free terminations, MF through hole resistors are ideal for general purpose use and also suitable in automatic placement machines. These semi-precision through hole resistors have an operating temperature range of -55°C to +155°C

MFS variations offer twice the power rating of the standard body type. MF1/4, MFS1/4, MFS1/2 variations are AEC-Q200 qualified and suitable for automotive applications.


Attribute Value
Brand KOA
Resistance 510 Ω
Power Rating 0.25 W
Tolerance ±1 %
Technology Metal Film
Temperature Coefficient ±50 ppm/°C
Maximum Operating Temperature +155 °C
Minimum Operating Temperature -55 °C
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