Sample Kit 2011 Multilayer Varistors (MLVs) f o r E S D a n d H i g h E n e r g y Tr a n s i e n t Protection in Automotive Applications www.epcos.com What are multilayer varistors (MLVs)? MLVs are multilayer semiconductor ceramic components for ESD protection of safetyrelevant data lines and bus systems and for high-energy transient protection (e.g. load dump and jump start) in automotive electronic devices. MLVs can replace semiconductor diodes. Benefits for customer applications Bidirectional protection for ESD and high energy transients Low capacitance types for bus systems Use of parasitic capacitance for RFI suppression and RF filtering (replacement of additional MLCC) High signal integrity due to low non-linearity 씮 no signal distortion Use at temperatures up to 150 °C No temperature derating up to 125 °C/150 °C (depending on type) High energy handling capability Low parasitic inductance Low leakage current Fast response time < 0.5 ns Qualification Reliability based on AEC-Q200, Rev. C ESD protection according to IEC61000-4-2 and ISO10605 Jump start and load dump protection to ISO7637 Overview of transient overvoltages Electrostatic discharge (ESD) Surge (high energy transients µs) Burst (fast transient single pulse ns) Switched inductive loads Load dump Jump start Selection Guide Typical requirements for automotive applications ESD protection. Typical applications: Bus systems, car infotainment. Typical case sizes: 0603, 0805 ESD specification (e.g. IEC, ISO, AEC, JEDEC, HBM, customer specification) Type of bus system (e.g. LIN, CAN, FlexRay) defines capacitance requirement on protection device Special capacitance range (controlled capacitance, low capacitance, high-speed) Enhanced temperature requirement (150 °C) High temperature (HT) range Load dump/jump start protection. Typical application: battery line. Typical case sizes: 1210, 2220 Load dump / jump start requirements (e.g. ISO 7637) Additional requirements (e.g. centralized or module protection) Enhanced temperature requirement (150 °C) AUTO range AUTO high temperature range Transient voltage/RFI suppression. Typical application: DC motors. Typical case sizes: SR1 (1812), SR2 (2220), SR6 (1206) RFI suppression requirements: Noise suppression level (e.g. VDE 0879, part 3), capacitance value, frequency range Additional requirements (e.g. load dump, jump start, ISO 7637, JASO) Leaded transient voltage / RFI suppressors (SHCV) 1) Surge current protection. Typical application: motors. Typical case sizes: 3225, 4032 Additional requirements (e.g. load dump, jump start) SMD disk varistors AUTO range (CU AUTO) 1) 1) For samples or further information please contact your EPCOS sales office. Product Range Electrical parameters of parts in the sample kit Case EPCOS size type VDC lsurge, max @ 8/20 µs [V] [A] Wmax @ 2 ms [mJ] WLD @ 10 pulses [J] Pdiss, max VV @ 1 mA*) [mW] [V] Vjump Vclamp, max lclamp @ 5 min. @ 8/20 µs [V] [V] [A] Ctyp Cmax [pF] [pF] AUTO range 0805 CT0805S14BAUTOG 16 120 300 1 8 22 24.5 42 1.0 400 – 1206 CT1206K20AUTOG 26 200 700 1.5 8 33 27.0 54 1.0 600 – 1210 CT1210S14BAUTOG 16 400 1600 3 10 22 24.5 40 2.5 1700 – 1210 CT1210K17AUTOG 22 400 1700 3 10 27 26.5 44 2.5 1800 – 1210 CT1210K20AUTOG 26 400 1900 3 10 33 27.0 54 2.5 1500 – 1210 CT1210K25AUTOG 31 300 1700 3 10 39 29.0 65 2.5 1200 – 2220 CN2220S14BAUTOGK2 16 1200 5800 12 30 22 24.5 40 10.0 9500 – 2220 CN2220S14BAUTOE2G2K2 16 1200 5800 25 30 22 24.5 40 10.0 15000 – 2220 CN2220K30AUTOE2G2K2 1200 12000 25 30 47 45.0 77 10.0 10000 – 34 Standard and special capacitance range 0603 CT0603K25G 31 30 300 – 3 39 – 67 1 90 – 0805 CT0805K25G 31 80 300 – 5 39 – 67 1 250 – 0603 CT0603K17LCG 22 10 100 – 1 27 – 50 1 – 0603 CT0603S17BCCG 22 30 75 – 3 25 – 50 1 – 74.2 0603 CT0603S17ALCG 22 30 75 – 3 25 – 50 1 – 75.0 0603 CT0603K14G 18 30 200 – 3 22 – 40 1 100 0603 CT0603S14AHSG 16 5 30 – 3 23 – 66 1 15 30.0 0603 CT0603L25HSG 32 5 – – 51.9 – 120 1 10 15.0 30 200 – 22 – 42 1 120 50.0 – AUTO high temperature range 0603 CN0603S14BHTG2 *) 18 Tolerances see data sheet on CD-ROM 3 – Components CT0805 S14BAUTOG CT1206 K20AUTOG CT1210 S14BAUTOG CT1210 K17AUTOG CT1210 K20AUTOG CT1210 K25AUTOG CN2220S14 BAUTOGK2 CN2220S14 BAUTOE2G2K2 CN2220K30 AUTOE2G2K2 CT0603 K25G CT0805 K25G CT0603 K17LCG CT0603 S17BCCG CT0603 S17ALCG CT0603 K14G CT0603 S14AHSG CT0603 L25HSG CN0603 S14BHTG2 Video Navigation Entertainment Shift by wire Steer by wire Brake by wire Drive and chassis control Gearbox ESP ABS Electronic acceleration Power train Car radio Airbag Seat adjustment Windshield wipers Rain sensors Sun roofs Central door looking Mirror controls Application examples Power windows Application Matrix for High-Runner Types AUTO range: Load dump/jump start suppression (centralized or on module) CT0805S14BAUTOG x x x x x x x x x x CT0805K25AUTOG x x x x x x x x x x CT1206S14BAUTOG x x x x x x x x x x CT1206K25AUTOG x x x x x x x x x x CT1210S14BAUTOG x x x x x x x x x x CT1210K25AUTOG x x x x x x x x x x CN1812S14BAUTOG x x x x x x x x x x CN1812S14BAUTOE2G2 x x x x x x x x x x CN2220S14BAUTOGK2 x x x x x x x x x x CN2220S14BAUTOE2G2K2 x x x x x x x x x x CN2220K30AUTOGK2 x x x x x x x x x x CN2220K30AUTOE2G2K2 x x x x x x x x x x Standard and special capacitance range: ESD protection and filtering in bus systems and datalines Bus system Data rate LIN CAN class A/B CAN class C Flex Ray MOST 20 kbit/s 10 to 100 kbit/s 100 kbit/s to 1 Mbit/s 10 Mbit/s 25 Mbit/s CT0603K25G x x x x x x x x x CT0805K25G x x x x x x x x x CT0603K17LCG x x x x x x x x x CT0603S17BCCG x x x x x x x x x CT0603S20ACCG x x x x x x x x x CT0603S17ALCG x x x x x x x x x CT0805K17LCG x x x x x x x x x CT0603K14G x x x x x x x x x CT0603S14AHSG x x x x x x x x x x x x CT0603L25HSG x x x x x x x x x x x x AUTO high temperature range: ESD protection in bus systems and overvoltage protection in high-temperature applications (hybrid systems) Bus system Data rate LIN CAN class A/B CAN class C Flex Ray MOST 20 kbit/s 10 to 100 kbit/s 100 kbit/s to 1 Mbit/s 10 Mbit/s 25 Mbit/s CN0603S14BHTG2 x x x CN0603S17BHTG x x x Important information: Some parts of this publication contain statements about the suitability of our products for certain areas of application. These statements are based on our knowledge of typical requirements that are often placed on our products. We expressly point out that these statements cannot be regarded as binding statements about the suitability of our products for a particular customer application. It is incumbent on the customer to check and decide whether a product is suitable for use in a particular application. This publication is only a brief product survey which may be changed from time to time. Our products are described in detail in our data sheets. The Important notes (www.epcos.com / ImportantNotes) and the product-specific Cautions and warnings must be observed. All relevant information is available through our sales offices. © EPCOS AG 2011 · Corporate Center · 4th Edition 01/2011 Ordering No. B72499A9999K99 · Printed in Germany · SO 01110.3