V I S H AY I N T E R T E C H N O L O G Y, I N C . Medical Products Vishay Dale Resistors - Medical 101 Medical Resistors 101 INTRODUCTION Vishay Dale is a market leader in medical resistor technology. Resistors for medical applications cover a wide range of applications and operating environments; whether they are found in implantable devices, imaging equipment, surgical or patient monitoring equipment, as part of a hospital’s physical plant, or part of home-based health care, these resistors need to have a high level of performance, stability, and precision. Vishay Dale’s wide range of resistor products offers solutions for a variety of engineering challenges. Our technical staff can help designers select the device best matched to their application. This guide highlights some of our resistor products with target applications; in addition, Vishay can also design and produce custom components. Quality and reliability are of the utmost importance for medical devices. Vishay Dale provides comprehensive environmental testing and failure analysis capabilities; MIL specifications augmented by customer specific requirements form our testing protocols. Process control and stability is an important aspect of Vishay’s high product reliability; lot traceability is maintained for all products. All Vishay Dale resistor facilities are ISO 9001 and 14001 certified and selected facilities are also ISO 13485 certified. One of the World’s Largest Manufacturers of Discrete Semiconductors and Passive Components MARKET SOLUTIONS VMN-PL0482-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . Medical Products Vishay Dale Resistors - Medical 101 Medical Implantable Series/Part Number Applications Features •Cardiac rhythm management •Neurostimulation •Muscle stimulation •Small size •Battery optimization •Pulse handling •Stability / precision Features and Descriptions Benefits M •High-reliability thick film SMT chip resistor •Wide resistance range available: 10 Ω to 22 MΩ •100 % thermal shock, electrical, and visual inspected •Tolerance as low as 1 % and power rating up to 2 W PNS (MILPRF-55342) •Precision thin film SMT chip resistor •Wide resistance range available : 10 Ω to 6.19 MΩ •Wide selection of case sizes with power ratings to 2 W •TCR as low as 10 ppm/°C available • Tolerance to ± 0.02 % SFM, MSFM •Wirebondable •Wide resistance range available: 1 Ω to 1 MΩ •Small footprint (0.015 in x 0.015 in) •Rated power to 250 mW NET, PSS •Wirebondable •Custom resistor networks •Good pulse handling •Tight ratio tolerance and TC tracking WSL WSL…18 WSLP •Power Metal Strip® resistors •Very low resistance values of 0.5 mΩ to 500 mΩ •Tight tolerance of 1 % standard, and available down to 0.1 % •Accurate current sensing, allowing the use of lower-cost ICs •Small size •Au-plated terminations available CRHV •High-voltage thick film chip resistor •Voltages to 3 kV •Divider chip available •Stability to < 0.5 % •Tolerances to 0.5 % •Custom sizes, terminations, testing, and performance available CRMV •Medium-voltage thick film chip resistor •Voltages to 800 V •Stability to < 0.5 % •Tolerances to 0.5 % •Custom sizes, terminations, testing, and performance available RCWP •Thick film industrial / medical chip resistor •Sulfur-impervious construction and materials •100 % tested to MIL-PRF-55342, Group A •Tolerances to 0.5 % •Non-magnetic solderable termination available •Value range of 1 Ω to 22 MΩ standard MARKET SOLUTIONS 2/9 VMN-PL0482-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . Medical Products Vishay Dale Resistors - Medical 101 Medical Implantable, continued WSK0612 WSK2512 WSL3637 •Power Metal Strip resistors •4-terminal Kelvin connection •Very low resistance values of 0.5 mΩ to 200 mΩ •Implantable instrumentation imaging •Low-RTC resistance element (< 20 ppm/°C) results in accurate current sensing, allowing the use of lower cost ICs •Tight tolerance of 1 % standard, and available down to 0.1 % •Provides high-temperature performance that can surpass that of thick film resistors •Saves space by enabling use of a single low-value resistor instead of multiple high-value resistors in parallel RCWE •Thick film resistors with wrap termination •Extremely low resistance range, from 0.01 Ω to 0.979 Ω •High power capacity to 2 W •Implantable instrumentation imaging •High power •High surge pulse performance •Tight tolerances: ± 1 %, ± 5 % •Temperature coefficient: from ± 100 ppm/°C to ± 700 ppm/°C depending on value •Operating temperature range : -55 °C to +155 °C MARKET SOLUTIONS 3/9 VMN-PL0482-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . Medical Products Vishay Dale Resistors - Medical 101 Medical Instrumentation Series/Part Number Features and Descriptions Applications Features •Patient monitoring •Portable defibrillator •Glucose monitoring •Stress test equipment •Precision •Stability •Low TCR Benefits LNS •Low-value SMT chip resistor •Moisture-resistant nickel alloy film •Resistance range from 0.03 Ω to 10 Ω •Non-standard resistance values available •Pre soldered or gold terminations •Tolerance down to 1 % and TCR as low as 300 ppm/ºC PLT •Precision low-TCR SMT chip resistor •Resistance range from 250 Ω to 775 kΩ •Non-standard resistance values available •Tolerance down to 0.01 % •Low TCR of 5 ppm/ºC over entire operating range MPM •Precision thin film resistor divider network •Small SOT-23 package •Multiple standard divider ratios: 1:1 to 100:1 available •Custom divider ratios available •Tight TCR tracking down to 2 ppm/ºC •Ratio tolerance as low as 0.01 % DFN/DFN Divider •8 mm pitch, dual flat no-lead package resistor network •Low-profile 1 mm seated height •Custom schematics and divider ratios available •Tight TCR tracking down to 3 ppm/ºC •Ratio tolerance as low as 0.025 % ORN / ORN Divider •8-pin SOIC precision resistor network •33 Ω and 500 kΩ resistance per element •Multiple standard divider ratios: 2:1 to 100:1 available •Customer schematics and divider ratios available •Tight TCR tracking down to 5 ppm/ºC •Ratio tolerance as low as 0.01 % NOMC •14- and 16-pin SOIC precision resistor networks •100 Ω to 100 kΩ resistance per element •Isolated and bussed schematics available •Customer schematics and divider ratios available •Tight TCR tracking down to 5 ppm/ºC •Ratio tolerance as low as 0.05 % HLZ, FVE, FSE, RB •Wirewound •35 W to 2000 W •0.010 Ω to 391 Ω •High power •Custom designs •Mounting solutions •Overload capacity of 10x rated power for 5 s RNX / ROX •High-voltage metal oxide axial resistors •Voltage to 8 kV on the RNX and 45 kV on the ROX •Tolerances to 0.5 % and TCR to 50 ppm/ºC •Alternative construction available •Special testing available CRHV / CRMV •High- or medium-voltage thick film chip resistor •Voltages to 3 kV •Divider chip available •Stability to < 0.5 % •Tolerances to 0.5 % •Custom sizes, terminations, testing, and performance available MARKET SOLUTIONS 4/9 VMN-PL0482-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . Medical Products Vishay Dale Resistors - Medical 101 Medical Instruments, continued PTF / PSF •High-precision, high-stability metal film resistors •Through-hole (axial) product available in PTF series •Surface-mount (SMD) product available in PSF series •Tolerances to 0.01 % and TCR to 5 ppm/ºC •Very low noise and voltage coefficient TR / FHV •High-voltage through-hole thick film planar resistors •Radial or axial lead available •Voltages to 30 kV •Non-inductive design •Tolerances to 1 % and TCR to 100 ppm/ºC •Ohmic values ranging from 10 Ω to 3 TΩ WSL WSL…18 WSLP •Power Metal Strip® resistors •Very low resistance values of 0.5 mΩ to 500 mΩ •Tight tolerance of 1 % standard, and available down to 0.1 % •Instrumentation imaging •Low-RTC resistance element (< 20 ppm/°C) results in accurate current sensing, allowing the use of lower cost ICs •Provides high-temperature performance that can surpass that of thick film resistors •Available with gold plated terminations for wire bond or epoxy bond applications •Saves space by enabling use of a single low-value resistor instead of multiple high-value resistors in parallel WSK0612 WSK2512 WSL3637 •Power Metal Strip resistors •4-terminal Kelvin connection •Very low resistance values of 0.5 mΩ to 200 mΩ •Implantable instrumentation imaging •Low-RTC resistance element (< 20 ppm/°C) results in accurate current sensing, allowing the use of lower cost ICs •Tight tolerance of 1 % standard, and available down to 0.1 % •Provides high-temperature performance that can surpass that of thick film resistors •Saves space by enabling use of a single low-value resistor instead of multiple high-value resistors in parallel RCWE •Thick film resistors with wrap terminations •Extremely low resistance range, from 0.01 Ω to 0.979 Ω •High power capacity to 2 W •Implantable instrumentation imaging •High power •High surge pulse performance •Tight tolerances: ± 1 %, ± 5 % •Temperature coefficient: from ± 100 ppm/°C to ± 700 ppm/°C, depending on value •Operating temperature range : -55 °C to +155 °C WSR •Power Metal Strip resistors •Very low resistance values of 1 mΩ to 1 Ω •High power capacity to 5 W •Implantable instrumentation imaging •Compact 4527 package size •Inductance values as low as 0.5 nH •Resistant to thermal and mechanical shock, extreme temperatures, humidity, and vibration •Operating temperature range: -65 ºC to +275 ºC •Lead (Pb)-free version is RoHS-compliant WSC WSN SM •Wirewound SMD design •Wide resistance range from 0.1 Ω to 40 KΩ •High power capacity to 4 W •Implantable instrumentation imaging •Complete molded construction •Available in non-inductive (WSN) version •Resistant to thermal and mechanical shock, extreme temperatures, humidity, and vibration •Operating temperature range: -65 ºC to +275 ºC •Lead (Pb)-free version is RoHS-compliant MARKET SOLUTIONS 5/9 VMN-PL0482-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . Medical Products Vishay Dale Resistors - Medical 101 Medical Imaging Series/Part Number Applications Features •X-ray •MRI •Portable ultrasounds •CT scanning •High voltage handling •Non-magnetic construction Features and Descriptions Benefits PNM •Precision thin film non-magnetic SMT chip resistor •Resistance range from 20 Ω to 3 MΩ •Tight tolerance of 0.1 % and low TCR of 25 ppm/ºC •Wide variety of case sizes with power levels up to 1 W •Non-standard resistance values available CSOM/CSO •25 mil and 50 mil pitch dual in-line SMT resistor network •Ceramic package with no cavities •Tantalum nitride or passivated nichrome resistive film •Custom schematics available •Tight TCR tracking of 5 ppm/°C •Ratio tolerance as low as ± 0.02 % PLT •Precision low-TCR SMT chip resistor •Resistance range from 250 Ω to 775 kΩ •Non-standard resistance values available •Tolerance down to 0.01 % •Low TCR of 5 ppm/ºC over entire operating range MPM •Precision thin film resistor divider network •Small SOT-23 package •Multiple standard divider ratios: 1:1 to 100:1 available •Custom divider ratios available •Tight TCR tracking down to 2 ppm/°C •Ratio tolerance as low as 0.01 % DFN / DFN Divider •8 mm pitch, dual flat no-lead package resistor network •Low-profile 1 mm seated height •Custom schematics and divider ratios available •Tight TCR tracking down to 3 ppm/°C •Ratio tolerance as low as 0.025 % ORN / ORN Divider •8-pin SOIC precision resistor network •33 Ω to 500 kΩ resistance per element •Multiple standard divider ratios: 2:1 to 100:1 available •Customer schematics and divider ratios available •Tight TCR tracking down to 5 ppm/°C •Ratio tolerance as low as 0.01 % HLZ, FVE, FSE, RB •Wirewound •35 W to 2000 W •0.010 Ω to 391 Ω •High power •Custom designs •Mounting solutions •Overload capacity of 10x rated power for 5 s MRA •Axial-leaded wirewound •RoHS compliant •Welded construction •Non-inductive / non-magnetic •Power ratings of 4 W to 12 W •Excellent pulse performance RNX / ROX •High-voltage metal oxide axial resistors •Voltage to 8 kV on the RNX and 45 kV on the ROX •Tolerances to 0.5 % and TCR to 50 ppm/ºC •Alternative construction available •Special testing available MARKET SOLUTIONS 6/9 VMN-PL0482-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . Medical Products Vishay Dale Resistors - Medical 101 Medical Imaging, continued CMF Non-Magnetic •Precision industrial / medical axial-leaded metal film resistor •Same electrical characteristics as the standard CMF series •Fully non-magnetic construction •Tolerances to 0.1 % and TCR to 25 ppm/ºC •Value ranges from 0.1 Ω to 50 MΩ standard •Custom construction and testing available RCWP Non-Magnetic •Non-magnetic industrial / medical thick film resistor •Sulfur-impervious construction and materials •100 % tested to MIL-PRF-55342, Group A •Tolerances to 0.5 % •Value range of 1 Ω to 22 MΩ standard •Custom size, values, materials, testing available CRHV / CRMV Non-Magnetic •Non-magnetic high- or medium-voltage thick film chip resistor •Voltages to 3 kV •Divider chip available •Stability to < 0.5 % •Tolerances to 0.5 % •Custom sizes, terminations, testing, and performance available WSL WSL…18 WSLP •Power Metal Strip® resistors •Very low resistance values of 0.5 mΩ to 500 mΩ •Tight tolerance of 1 % standard, and available down to 0.1 % •Instrumentation imaging •Low-RTC resistance element (< 20 ppm/°C) results in accurate current sensing, allowing the use of lower cost ICs •Provides high-temperature performance that can surpass that of thick film resistors •Available with gold-plated terminations for wire-bond or epoxy-bond applications •Saves space by enabling use of a single low-value resistor instead of multiple high-value resistors in parallel WSK0612 WSK2512 WSL3637 •Power Metal Strip resistors •4-terminal Kelvin connection •Very low resistance values of 0.5 mΩ to 200 mΩ •Implantable instrumentation imaging •Low-RTC resistance element (< 20 ppm/°C) results in accurate current sensing, allowing the use of lower cost ICs •Tight tolerance of 1 % standard, and available down to 0.1 % •Provides high-temperature performance that can surpass that of thick film resistors •Saves space by enabling use of a single low-value resistor instead of multiple high-value resistors in parallel RCWE •Thick film resistors with wrap termination •Extremely low resistance range, from 0.01 Ω to 0.979 Ω •High power capacity to 2 W •Implantable instrumentation imaging •High power •High surge pulse performance •Tight tolerances: ± 1 %, ± 5 % •Temperature coefficient: from ± 100 ppm/°C to ± 700 ppm/°C, depending on value •Operating temperature range : -55 °C to +155 °C WSR •Power Metal Strip resistors •Very low resistance values of 1 mΩ to 1 Ω •High power capacity to 5 W •Implantable instrumentation imaging •Compact 4527 package size •Inductance values as low as 0.5 nH •Resistant to thermal and mechanical shock, extreme temperatures, humidity, and vibration •Operating temperature range: -65 ºC to +275 ºC •Lead (Pb)-free version is RoHS-compliant WSC WSN SM •Wirewound SMD design •Wide resistance range from 0.1 Ω to 40 KΩ •High power capacity to 4 W •Implantable instrumentation imaging •Complete molded construction. •Available in non-inductive (WSN) version. •Resistant to thermal and mechanical shock, extreme temperatures, humidity, and vibration •Operating temperature range: -65 ºC to +275 ºC •Lead (Pb)-free version is RoHS-compliant MARKET SOLUTIONS 7/9 VMN-PL0482-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . Medical Products Vishay Dale Resistors - Medical 101 Medical Facilities Series/Part Number Applications Features •Ground fault protection •Neutral grounding •Neutral earthing •High power •Overload capacity Features and Descriptions Benefits HL, FST, FVT, RD •Wirewound •5 W to 1150 W •0.012 Ω to 651 kΩ •High power •Custom designs •Mounting solutions •Overload capacity of 10 x rated power for 5 s NGR •Grounding of industrial power systems for ground fault, over voltage, and short circuit protection •Steel grid technology •System voltage from 2.4 kV to 13.8 kV •Current rating from 100 A to 1000 A •Tied live design •Application specific designs •Designed per IEEE-32 •High thermal capacity to absorb high currents •Rugged shock resistant IP23 rated enclosures CRHV / CRMV •High- or medium-voltage thick film chip resistor •Voltages to 3 kV •Divider chip available •Stability to < 0.5 % •Tolerances to 0.5 % •Custom sizes, terminations, testing, and performance available MARKET SOLUTIONS 8/9 VMN-PL0482-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . Medical Products Vishay Dale Resistors - Medical 101 WORLDWIDE SALES CONTACTS THE AMERICAS EUROPE UNITED STATES GERMANY VISHAY AMERICAS ONE GREENWICH PLACE SHELTON, CT 06484 UNITED STATES PH: +1-402-563-6866 FAX: +1-402-563-6296 VISHAY ELECTRONIC GMBH DR.-FELIX-ZANDMAN-PLATZ 1 95100 SELB GERMANY PH: +49-9287-71-0 FAX: +49-9287-70435 ASIA FRANCE SINGAPORE VISHAY INTERTECHNOLOGY ASIA PTE LTD. 37A TAMPINES STREET 92 #07-00 SINGAPORE 528886 PH: +65-6788-6668 FAX: +65-6788-0988 VISHAY S.A. 199, BD DE LA MADELEINE 06003 NICE, CEDEX 1 FRANCE PH: +33-4-9337-2727 FAX: +33-4-9337-2726 P.R. CHINA UNITED KINGDOM VISHAY CHINA CO., LTD. 15D, SUN TONG INFOPORT PLAZA 55 HUAI HAI WEST ROAD SHANGHAI 200030 P.R. CHINA PH: +86-21-22315555 FAX: +86-21-22315551 VISHAY LTD. SUITE 7A, TOWER HOUSE ST. CATHERINE’S COURT SUNDERLAND ENTERPRISE PARK SUNDERLAND SR5 3XJ UNITED KINGDOM PH: +44-191-516-8584 FAX: +44-191-549-9556 JAPAN VISHAY JAPAN CO., LTD. SHIBUYA PRESTIGE BLDG. 4F 3-12-22, SHIBUYA SHIBUYA-KU TOKYO 150-0002 JAPAN PH: +81-3-5466-7150 FAX: +81-3-5466-7160 MARKET SOLUTIONS 9/9 VMN-PL0482-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000