Exxelia unveils two brand new High Temperature Film Capacitors series operating up to 200°C
Exxelia, an established designer and manufacturer of complex passive components, resistors & sub-systems dedicated to harsh environments, launches its new 253P & 560P product series providing unmatched performances at high temperature.
Exxelia unveils two brand new High Temperature Film Capacitors series operating up to 200°C
June 30th 2020 - Paris, France - Exxelia, an established designer and manufacturer of complex passive components, resistors & sub-systems dedicated to harsh environments, launches its new 253P & 560P product series providing unmatched performances at high temperature.
253P series, the 200°C Film capacitor series with unmatched stability
The PTFE 253P series is the most stable 200°C Film capacitor on the market with its unparalleled stability of <2,5% with capacitance from 0.22μF to 1μF under 250VDC to 800VDC. It offers the lowest loss characteristic (Tẟ) of all film technologies less than 0,1% at extreme temperatures (200°C) with excellent life performance in operations. The series offers great resistance to vibrations, shocks and to over voltage making it ideal for Oil & Gas applications as well as Defense and Civil Aviation.
Voltages from 250VDC to 800VDC
Capacitance from 0.22μF to 1μF
Standard Tolerance ±10%, ±5%*
Operating Temperature -55°C to +200°C
560P Film Capacitor series, is a High Temperature Polymer operating up to 180°C
Exxelia’s 560P product series combines electrical performance between BOPP & PET while exhibiting a higher operating temperature up to 180°C and longer lifetime, it is the perfect cost-effective solution for high reliability and performance in severe environments. With absolutely no derating up to 150°C, its very stable TCC <2,5% and its great resistance to vibrations, shocks and over voltage, the series supplant high temperature ceramics and tantalums being an ideal choice for many capacitor applications in harsh environments i.e. DC Link, AC Filtering, ....
Voltages from 320VDC to 800VDC
Capacitance value from 0.022μF to 10μF
Standard Tolerance ±10%, ±5%*
Temperature ranges from -55°C to +180°C
Both series are available with a high degree of customization (* tighter tolerances available upon request). Representative samples are readily available for evaluation. For more information contact email@example.com or visit www.exxelia.com
What you should know about Ceramic Capacitors ?
▲ What you should know about Ceramic Capacitors ? 1. Materials expert For 50 years and as a market leader, EXXELIA’s comprehensive knowledge of the materials properties and performances have enabled us to design capacitors in Porcelain, NPO, BX, 2C1, BP, X7R and –2200ppm/°C ceramics. > See our capacitors in catalog 2. Custom Designs Our catalog products don’t meet your application? Based on the valuable experience accumulated over the design of 2,000+ specific ceramic capacitors, you can trust EXXELIA to define a qualitative custom solution in a time effective manner. 3. No Obsolescence Choosing a standard or custom EXXELIA product means you won’t have to worry about obsolescence. 4. Typical Applications Aerospace & Defense: cockpit panels, flight control, radio systems, missile guidance systems… Space: military and commercial satellites, launcher… Medical: MRI, external defibrillators, implantable devices… Telecommunications: base stations… Oil and gas: drilling tools, MWD, LWD, wellheads… 5. ISO 9001 And AS9100C Quality is at the core of Exxelia’s corporate culture. Each sites has its own certifications. 6. Certifications Capacitors manufactured by EXXELIA comply with American and European standards and meet the requirements of many international standards. For Space qualified parts (ESA QPL), please refer to our catalog «Ceramic capacitors for Space applications». 7. Quality & Reliability EXXELIA is committed to design and manufacture high quality and reliability products. The test cycles reproducing the most adverse operating conditions over extended periods (up to 10 000 hours) have logged to date well over 5.109 hours/°Component. Failure rate data can be provided upon request. 8. Conflict minerals EXXELIA is committed to an approach based on «Conflict Minerals Compliance». This US SEC rule demands complete traceability and a control mechanism for the mineral procurement chain, encouraging importers to buy only «certified» ore. We have discontinued relations with suppliers that procure from the Democratic Republic of the Congo or an adjoining country. 9. Environment EXXELIA is committed to applying a robust environmental policy, from product design through to shipment. To control its environmental footprint and reconcile this with the company’ functional imperatives, our environmental policy provides for the reduction or elimination of hazardous substances. We also focus on compliance with European Union directives and regulations, notably REACH and RoHS. 10. RoHS Compliancy SMD CAPACITORS The capacitor terminations are generally protected by a nickel barrier formed by electrolytic deposit. This barrier gives chip capacitors leaching performance far exceeding the requirements of all applicable standards. The nickel barrier guarantees a minimum resistance to soldering heat for a period of 1 minute at 260°C in a tin-lead (60/40) or tin-lead-silver (62/36/2) bath without noticeable alteration to the solderability. It also allows repeated soldering-unsoldering and the longer soldering times required by reflow techniques. However nickel barrier amplifies thermal shock and is not recommended for chip sizes equal or greater than CNC Y (30 30) - (C 282 to C 288 - CNC 80 to CNC 94). LEADED COMPONENTS As well as for SMD products, leaded capacitors ranges can also be RoHS. These products, which are characterized by the suffix «W» added to the commercial type, are naturally compatible with the soldering alloys used in RoHS mounting technology. The connections coating is generally an alloy SnAg (with a maximum of 4% Ag). However, on a few products that EXXELIA will precise on request, the coating is pure silver. 11. MLCC Structure 12. Equivalent circuit Capacitor is a complex component combining resistive, inductive and capacitive phenomena. A simplified schematic for the equivalent circuit is: 13. Dielectric characteristics Insulation Resistance (IR) is the resistance measured under DC voltage across the terminals of the capacitor and consists principally of the parallel resistance shown in the equivalent circuit. As capacitance values and hence the area of dielectric increases, the IR decreases and hence the product (C x IR) is often specified in Ω.F or MΩ.µF. The Equivalent Series Resistance (ESR) is the sum of the resistive terms which generate heating when capacitor is used under AC voltage at a given frequency (f). Dissipation factor (DF) is the ration of the apparent power input will turn to heat in the capacitor: DF = 2π f C ESR When a capacitor works under AC voltage, heat power loss (P), expressed in Watt, is equal to: P = 2π f C Vrms2 DF The series inductance (Ls) is due to the currents running through the electrodes. It can distort the operation of the capacitor at high frequency where the impedance (Z) is given as: Z = Rs + j (Ls.q - 1⁄(C.q)) with q = 2πf When frequency rises, the capacitive component of capacitors is gradually canceled up to the resonance frequency, where : Z = Rs and LsC.q2 = 1 Above this frequency the capacitor behaves like an inductor. Manufacturing steps > See our capacitors in catalog SMD environmental tests Ceramic chip capacitors for SMD are designed to meet test requirements of CECC 32100 and NF C 93133 standards as specified below in compliance with NF C 20700 and IEC 68 standards: Solderability: NF C 20758, 260°C, bath 62/36/2. Adherence: 5N force. Vibration fatigue test: NF C 20706, 20 g, 10 Hz to 2,000 Hz, 12 cycles of 20 minutes each. Rapid temperature change: NF C 20714, –55°C to + 125°C, 5 cycles. Combined climatic test: IEC 68-2-38. Damp heat: NF C 20703, 93 %, H.R., 40°C. Endurance test: 1,000 hours, 1.5 URC, 125°C. > See our capacitors in catalog STORAGE OF CHIP CAPACITORS TINNED OR NON TINNED CHIP CAPACITORS Storage must be in a dry environment at a temperature of 20°C with a relative humidity below 50 %, or preferably in a packaging enclosing a desiccant. STORAGE IN INDUSTRIAL ENVIRONMENT: 2 years for tin dipped chip capacitors, 18 months for tin electroplated chip capacitors, 2 years for non tinned chip capacitors, 3 years for gold plated chip capacitors. STORAGE IN CONTROLLED NEUTRAL NITROGEN ENVIRONMENT: 4 years for tin dipped or electroplated chip capacitors, 4 years for non tinned chip capacitors, 5 years for gold plated chip capacitors. Storage duration should be considered from delivery date and not from batch manufacture date. The tests carried out at final acceptance stage (solderability, susceptibility to solder heat) enable to assess the compatibility to surface mounting of the chips. LEAD STYLES SOLDERING ADVICES FOR REFLOW SOLDERING Large chips above size 2225 are not recommended to be mounted on epoxy board due to thermal expansion coefficient mismatch between ceramic capacitor and epoxy. Where larger sizes are required, it is recommended to use components with ribbon or other adapted leads so as to absorb thermo-mechanical strains. RECOMMENDED FOOTPRINT FOR SMD CAPACITORS Ceramic is by nature a material which is sensitive both thermally and mechanically. Stresses caused by the physical and thermal properties of the capacitors, substrates and solders are attenuated by the leads. Wave soldering is unsuitable for sizes larger than 2220 and for the higher ends of capacitance ranges due to possible thermal shock (capacitance values given upon request). Infrared and vapor phase reflow, are preferred for high reliability applications as inherent thermo-mechanical strains are lower than those inherent to wave soldering. SOLDERING ADVICES FOR IRON SOLDERING Attachment with a soldering iron is discouraged due to ceramic brittleness and the process control limitations. In the event that a soldering iron must be used, the following precautions should be observed: Use a substrate with chip footprints big enough to allow putting side by side one end of the capacitor and the iron tip without any contact between this tip and the component, place the capacitor on this footprint, heat the substrate until the capacitor’s temperature reaches 150°C minimum (preheating step, maximum 1°C per second), place the hot iron tip (a flat tip is preferred) on the footprint without, touching the capacitor. Use a regulated iron with a 30 watts maximum, power. The recommended temperature of the iron is 270 ±10°C. The temperature gap between the capacitor and the iron tip must not exceed 120°C, leave the tip on the footprint for a few seconds in order to increase locally the footprint’s temperature, use a cored wire solder and put it down on the iron tip. In a preferred way use Sn/Pb/Ag 62/36/2 alloy, wait until the solder fillet is formed on the capacitor’s termination, take away iron and wire solder, wait a few minutes so that the substrate and capacitor come back down to the preheating temperature, solder the second termination using the same procedure as the first, let the soldered component cool down slowly to avoid any thermal shock. 14. Packaging TAPE AND REEL The films used on the reels correspond to standard IEC 60286-3. Films are delivered on reels in compliance with document IEC 286-3 dated 1991. Minimum quantity is 250 chips. Maximum quantities per reel are as follows: Super 8 reel - Ø 180: 2,500 chips. Super 8 reel - Ø 330: 10,000 chips. Super 12 reel - Ø 180: 1,000 chips. Reel marking complies with CECC 32100 standard: Model. Rated capacitance. Capacitance tolerance. Rated voltage. Batch number. 15. Dimensional characteristics of chips tray packages 16. High Q Capacitors Tape and Reel Packaging Specifications 17. EIA standard capacitance values Following EIA standard, the values and multiples that are indicated in the chart below can be ordered. E48, E96 series and intermediary values are available upon request. 18. EIA capacitance code The capacitance is expressed in three digit codes and in units of pico Farads (pF). The first and second digits are significant figures of the capacitance value and the third digit identifies the multiplier. For capacitance value < 10pF, R designates a decimal point. See examples below: 19. Part marking voltage codes Use the following voltage code chart for part markings: 20. Part marking Tolerance codes Use the following tolerance code chart for part markings: 21. Reliability levels Exxelia proposes different reliability levels for the ceramic capacitors for both NPO and X7R ceramics. As the world’s leading manufacturer of specific passive components, we stand apart through our ability to quickly evaluate the application specific engineering challenges and provide a cost-effective and efficient solutions. For requirements that cannot be met by catalog products, we offer leading edge solutions in custom configuration: custom geometries, packaging, characteristics, all is possible thanks to our extensive experience and robust development process, while maintaining the highest level of reliability. Where necessary, special testing is done to verify requirements, such as low dielectric absorption, ultra-high insulation resistance, low dissipation factor, stability under temperature cycling or under specified environmental conditions, etc. > See our capacitors in catalog
Exxelia Ohmcraft’s Small, Low-Noise Resistors Maximize Design Options and Accuracy for Sensor Manufacturers
For more than 25 years, leading sensor manufacturers have turned to Exxelia Ohmcraft to provide small-form-factor, ultra-low-noise surface mount resistors to be used in a variety of critical sensor applications. In these applications, Exxelia Ohmcraft’s resistors enable designers to miniaturize the sensor’s footprint or accommodate multiple sensors in close proximity to each other—all while increasing accuracy of the end products. Resistors have a certain amount of electrical noise that is inherent in their construction, and the higher the noise, the more distorted the signal can become. Exxelia Ohmcraft’s high-resistance, low-noise chip resistors provide clearer signals to the sensor electronics, thereby improving their accuracy. To ensure requirements are met for specialty sensors such as those used to measure acceleration, velocity, or vibration, Exxelia Ohmcraft works closely with design engineers, who appreciate the combination of high performance, reliability, and small form factor that the company can provide. “Finding resistors that check all of these boxes can be a challenge for sensor designers. At Exxelia Ohmcraft, our understanding of these requirements allows us to provide the highest performing solution at the lowest possible cost,” said Eric Van Wormer, Vice President of Exxelia Ohmcraft. "In sensor electronics, it can be difficult to distinguish the signal one is trying to measure from the noise of the surrounding environment, but our low-noise resistors ensure that the signal quality is maximized.” Exxelia Ohmcraft’s technology utilizes the proprietary Micropen electronic printing system to “print” precise, narrow, serpentine lines with resistive ink on a ceramic substrate, producing higher performance resistors over a wider range of values on a smaller surface area than is possible with conventional film resistor technology.