Slide 1: Ceramic Transient Voltage Suppressors
Ceramic Transient Voltage Suppressors CTVS®: Multilayer Varistors and CeraDiodes® for General Use EPCOS AG A TDK Group Company Piezo & Protection Devices Business Group • Multilayer Technology Munich, Germany May 15, 2017
Slide 2: CTVS Multilayer varistors and CeraDiodes for General Use: Content
CTVS®*: Multilayer varistors (MLV) and CeraDiodes® for General Use Content • Transient environment 3 • CTVS® multilayer varistors and CeraDiodes®: Portfolio 5 • Protection against ESD 6 ¬ Portfolio 7 ¬ Application examples 8 • Protection against high energy transients 6 ¬ Portfolio 11 ¬ Application
Slide 3: Transient environment
Transient environment Transients and test standards ESD Surge Burst/ EFT (electrical Switching TOV (temporary fast transient) inductive loads overvoltage) Phenomena Electrostatic Lighting, switching of Transient interferences Switching operations Switching or fault clearing discharge inductive loads
Slide 4: ESD and high energy transient protection
ESD and high energy transient protection Varistor = variable resistor Features • ESD protection up to 25 kV (ISO 10605) • ESD protection min. 8 kV contact, 15 kV air (IEC 61000-4-2) • High energy handling capability • High surge current handling • EMI/RFI attenuation • Multi-strike capability • Low
Slide 5: CTVS multilayer varistors and CeraDiodes: Portfolio
CTVS® multilayer varistors and CeraDiodes®: Portfolio Geometry Circuit diagram symbol Leaded transient voltage/ RFI suppressors Single chip Arrays SHCV types Temperature derating Standard series Automotive TVS semiconductor diodes CeraDiodes® E series CeraDiodes® MLV standard series MLV automotive E
Slide 6: Electrostatic discharge (ESD) events
Electrostatic discharge (ESD) events Electrostatic discharge (ESD) is a fast and high voltage transient. ESD transients are frequently caused by touching a device or contact with the fingers. More than 15 kV can be charged in a human body, thus a protection device for ESD requires a high voltage wit
Slide 7: ESD protection on interfaces: Product portfolio
ESD protection on interfaces: Product portfolio Key botton, Push buttons, PS/2 Ethernet 10/100/1.000/fast IEEE 1394 Firewire 400/800 HDMI 1.3 / Display port Memory card, SIM card IEEE 1284 parallel port Serial RS-232 / RS-485 WLAN 802.11 b/a,g WiMax 802.16 xDSL modem Analog audio Analog video LCD da
Slide 8: Application examples: Medical and wearable devices
Application examples: Medical and wearable devices CeraDiode, 0201 3 pF CeraDiode, 0201 7 pF CeraDiode, 0201 15 pF • Ordering code: B72440C0050H260 • Ordering code: B72440C0050H160 • Ordering code : B72440C0050A160 • Description: CDS1C05GTH2 • Description: CDS1C05GTH1 • Description: CDS1C05GTA1 • Ca
Slide 9: I/O protection
Application example: Bar code scanner ESD can occur when touching a bar code scanner. The unwanted pulse may damage the components inside and thus its function. Multilayer ESD protection devices are used to protect ESD sensitive components preventing damage to the board. Recommended parts Memory EIA
Slide 10: Application examples: Consumer, communications
Application examples: Consumer, communications Serial port S-video HDMI USB 2.0 Recommended parts Type Case size VDC [V] Type Case size VDC [V] Type Case size VDC [V] Type Case size VDC [V] CDS1C05GTA1 0201 - 5.5 CDS1C05GTH2 0201 - 5.5 CDS1C05GTH2 0201 - 5.5 CDS2C05HDMI2 0402 SOD-723 5.6 CDS2C05GTA
Slide 11: Application example: Near field communication (NFC)
Application example: Near field communication (NFC) NFC technology is at the heart of an expanding spectrum of easy-to-use, intuitive, contactless applications. These target a broad range of electronic devices such as smartphones, PDAs and other consumer electronic devices. Taking advantage of the t
Slide 12: Application example: Smartphone
Application example: Smartphone ESD can occur when touching a smartphone. The unwanted pulse may damage the components inside and thus its function. Multilayer ESD protection devices are used to protect ESD sensitive components preventing damage to the board. ESD clamping voltage @15kV Contact Disch
Slide 13: Protection against high energy transients
Protection against high energy transients The major types of transients are electrical fast transients (EFT), surge, burst, cable discharges and switched inductive loads. For protection on PCB level, EPCOS has many fitting CTVS® in its portfolio. Due to the high energy level of these transients, EIA
Slide 14: Surge current protection
Surge current protection Pulse energy Waveform ● Very high current flows caused by surge voltages or spikes, like lightning coupled over network are referred as surge currents. Such surge currents deposit much more energy than ESD pulses and thus requires much higher energy absorption capability of
Slide 15: Surge current protection: Product portfolio
Surge current protection: Product portfolio Surge protection series Type EIA VDC, max VV Isurge, max Wmax EIA Comparable to Termination: case @ 1mA 8/20 µs 2 ms case disk varistor CT=Nickel-Barrier CN..K2=AgPt size [V] [V] [A] [mJ] size Ø CT0805K30G 0805 38 47 80 300 CT0805K35G 0805 45 47 80 300 NEW
Slide 16: Application example: Security systems
Application example: Security systems Smoke detectors are obligatory in many countries. Modern and intelligent fire security systems with a switching voltage of 30 V DC (from power connection 230 V AC) have up to 200 smoke detectors in a loop. Therefore components with a low leakage current are requ
Slide 17: Application example: Power over Ethernet (PoE)
Application example: Power over Ethernet (PoE) Power over Ethernet (PoE) does use the same copper cable for supply 48 VDC and the Ethernet data signal. This is an existing possibility how to transport data and supply voltage to Ethernet device by already existing net of cabling for computer networks
Slide 18: CTVS multilayer varistors: Design support
CTVS® multilayer varistors: Design support Sample kits ● Ceramic Transient Voltage Suppressors CTVS® Multilayer Varistors for Surge Protection NEW Ordering no. B72499H9999K199 ● Ceramic Transient Voltage Suppressors CTVS® Multilayer Varistors and CeraDiodes® for General Use Ordering no. B72499S9999K
Slide 19: Annex
Annex © EPCOS AG 2017 CTVS® Multilayer Varistors (MLV) and CeraDiodes for General Use A TDK Group Company PPD ML PM • 05/17 • 19
Slide 20: CTVS multilayer varistors: Product series at a glance
CTVS® multilayer varistors: Product series at a glance ● Multilayer varistors (MLV) are components designed for circuit protection in automotive, industrial, communication and consumer electronics. ¬ Standard For general protection purpose ¬ Automotive E series AEC-Q200 qualified ¬ Low clamping volt
Slide 21: www.global.tdk.com • www.epcos.com
www.global.tdk.com • www.epcos.com