Product Group: Vishay Dale, Resistors / October 2015 Author: Ray Lehman Tel: +1-402-563-6332 E-mail: [email protected] Power and Voltage Rating Improvements for the CRMV Series of Thick Film Medium-Voltage Chip Resistors Vishay Techno recently increased the power ratings and maximum working voltages for its CRMV series of medium-voltage thick film chip resistors. Unlike standard chip resistors, which have rectangular resistive elements, the CRMV series has a serpentine resistive element, which makes them capable of operating at a much higher maximum working voltage than a standard part. The CRMV series comes in five case sizes ranging from 1206 through 2512, and is available with tolerances down to ± 0.5 %. CRMV series chip resistors have a wide range of resistance values from 150 Ω to 75 MΩ, and are offered with several different termination materials suitable for use in solderable, wire-bondable, or epoxy-bondable applications. The solderable CRMV products are available with either a lead (Pb)-bearing or a lead (Pb)-free solder finish on the terminations. Based on recent testing, new power ratings for the CRMV series will range from 0.30 W to 1.0 W, and the new maximum working voltage will range from 550 V to 1415 V. The table below shows how each part’s new power rating and maximum working voltage compare to its historic ratings. Device Specification Table: Model CRMV1206 CRMV1210 CRMV2010 CRMV2510 CRMV2512 Historic Power Rating 0.25 W 0.30 W 0.40 W 0.45 W 0.50 W New Power Rating 0.30 W 0.35 W 0.50 W 0.80 W 1.0 W Historic Maximum Working Voltage 300 V 400 V 500 V 750 V 800 V New Maximum Working Voltage 550 V 650 V 895 V 1265 V 1415 V Product Group: Vishay Dale, Resistors / October 2015 Voltage vs Case Size 1500 1400 1300 Maximum Working Voltage (V) 1200 1100 1000 900 800 CRMV series 700 EIA-575 600 MIL-PRF-55342 500 400 300 200 100 0 1206 1210 2010 Case Size 2510 2512 Medium-voltage dividers (CDMV series) are also available. Features and Benefits: Ruthenium oxide thick film resistive element on a high-purity ceramic substrate Solder-coated nickel barrier or solder-coated non-magnetic terminations standard; gold, palladium silver, platinum gold, platinum silver, or platinum palladium gold terminations available Terminations with electroplated pure tin or tin/lead solder alloys standard Capability to develop specific reliability programs designed to customer requirements Size, value, packaging, and materials can be customized for special customer requirements Operating temperature range of -55 °C to +155 °C To learn more about the CRMV, please visit http://www.vishay.com/doc?68037. To learn more about the CDMV, please visit http://www.vishay.com/doc?68040. Contact Information: Ray Lehman Vishay Dale Electronics Phone: +1 402-563-6332 [email protected]