Vishay 25W 470Ω Wirewound Rheostat, RT025AS4700KB
- RS Stock No.:
- 7887832
- Mfr. Prt No.:
- RT025AS4700KB
- Brand:
- Vishay
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 | 7887832 |
| Product description | Vishay 25W 470Ω Wirewound Rheostat, RT025AS4700KB |
| Manufacturer / Brand | Vishay |
| Manufacturer part number | RT025AS4700KB |
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 | 7887832 |
| Product description | Vishay 25W 470Ω Wirewound Rheostat, RT025AS4700KB |
| Manufacturer / Brand | Vishay |
| Manufacturer part number | RT025AS4700KB |
The foregoing information relates to product sold on, or after, the date shown below.
RS COMPONENTS
| Date | Dec 26, 2024 |
RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132
Product Details
RT Series Wirewound Rheostats - 12 W and 500 W
The Vishay RT Series of linear wire wound rheostats are designed for use in professional and industrial equipment. Particularly in equipment where transients, repeated overloads, impacts and vibrations characterise everyday operation.Suggested accessories for these rheostats include control buttons and displays.
Note
Mounting surface must be earthed.
Features & Benefits
Vitreous enamel construction provides exceptional reliability
Linear wire wound track
Compact size per dissipation rating
Wide operating temperature range
Designed for heavy-duty applications such as repeated overloads, transients and conditions where shock and vibrations occur
Rheostats supplied with mounting hardware
1000 Vrms dielectric strength for 25 W models
±10% tolerance
Specifications
| Attribute | Value |
| Brand | Vishay |
| Maximum Resistance | 470 Ω |
| Tolerance | ±10 % |
| Power Rating | 25 W |
| Number of Turns | 1 |
| Mounting Type | Panel Mount |
| Shaft Diameter | 6 mm |
| Mounting Hole Diameter | 10.5 mm |
| Termination Style | Solder Lug |
| Dimensions | 38 x 50 mm |
| Length | 50 mm |
| Maximum Operating Temperature | +320 °C |
| Minimum Operating Temperature | -55 °C |
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