KOA 5.1kΩ 0.25W Carbon Film Resistor ±5% CFS1/4C512J
- RS Stock No.:
- 4912705
- Mfr. Prt No.:
- CFS1/4C512J
- Brand:
- KOA
Technical Reference
Legislation and Compliance
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:
| Substance | Concentration |
| Lead | 0.1% |
| Mercury | 0.1% |
| PBB (Polybrominated Biphenyls) | 0.1% |
| PBDE ( Polybrominated Diphenyl Ethers) | 0.1% |
| Hexavalent Chromium | 0.1% |
| Cadmium | 0.01% |
| 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.
| RS stock number | 4912705 |
| Product description | KOA 5.1kΩ 0.25W Carbon Film Resistor ±5% CFS1/4C512J |
| Manufacturer / Brand | KOA |
| Manufacturer part number | CFS1/4C512J |
RS Components Ltd, Birchington Road, Corby, Northants, NN17 9RS, UK
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.
| RS stock number | 4912705 |
| Product description | KOA 5.1kΩ 0.25W Carbon Film Resistor ±5% CFS1/4C512J |
| Manufacturer / Brand | KOA |
| Manufacturer part number | CFS1/4C512J |
The foregoing information relates to product sold on, or after, the date shown below.
RS COMPONENTS
| Date | Dec 25, 2024 |
RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132
Country of Origin: JP
Product Details
A comprehensive range of high stability carbon film resistors qualified and tested to the requirements of IEC 115 and IEC 115-2. The ruggedised welded cap and lead method of manufacture provides a considerable strength and resistance to damage. The coating materials and the colour bands are epoxy resin and are highly resistant to solvents, abrasion and chipping. Improvements in materials and processing have allowed the rated power to be improved. Excellent stability against changes in load conditions or moisture levels, with a low noise level and high reliability make these carbon film resistors suitable for a wide range of applications. Rated at 70°C in free air mounted horizontally. Climatic category 55/155/56.
Carbon Film Resistor 0.25 W 5% (1/8W type)
CFS1/4 Series
Specifications
| Attribute | Value |
| Brand | KOA |
| Resistance | 5.1 kΩ |
| Power Rating | 0.25 W |
| Tolerance | ±5 % |
| Technology | Carbon Film |
| Temperature Coefficient | -450 → +350 ppm/°C |
| Maximum Operating Temperature | +155 °C |
| Minimum Operating Temperature | -55 °C |