AVX Multilayer Ceramic Transient Voltage Suppressors

Transcription

1 GENERAL DESCRIPTION TransGuard multilayer varistors are zinc oxide (ZnO) based ceramic semiconductor devices with non-linear voltage-current characteristics (bi-directional) similar to backto-back zener diodes. They have the added advantage of greater current and energy handling capabilities as well as EMI/RFI attenuation. The increasing use of electronics technologies in all areas require reliable protection against transient voltages that could damage the electronics circuitry as well as EMI/RFI attenuation to prevent signal distortion and to meet regulatory requirements. AVX TransGuard components help achieve both functions with single component. GENERAL CHARACTERISTICS Operating Temperature: -55 C to +125 C Working Voltage: Vdc Case Size: Energy:.5-4.2J Peak Current: 2-2A FEATURES Bi-Directional protection Very fast response to ESD strikes Multi-strike capability High Reliability EMI/RFI Filtering Wide range of components APPLICATIONS IC Protection Micro Controllers Relays I/O Ports Keyboard Protection Portable devices Industrial Controllers Automation Smart Grid Telecom LED Lights Cameras Base Stations Motion detector Alarms and more HOW TO ORDER VC D 4 R P Varistor Chip VC = Varistor Chip VG = Varistor Glass Case Size = 3.3Vdc 5 = 5.6Vdc 9 = 9Vdc 12 = 12Vdc 14 = 14Vdc 16 = 16Vdc 18 = 18Vdc 22 = 22Vdc 26 = 26Vdc 3 = 3Vdc Working Voltage 31 = 31Vdc 38 = 38Vdc 42 = 42Vdc 45 = 45Vdc 48 = 48Vdc 56 = 56Vdc 6 = 6Vdc 65 = 65Vdc 85 = 85Vdc X =.5J A =.1J B =.2J C =.3J D =.4J E =.5J F =.7J G =.9J H = 1.2J J = J Energy Rating K =.6J M = 1.J N = 1.1J P = J R = 1.7J L =.8J S = J U = 4.-5.J W = J Y = J 1 = 12V 15 = 18V 2 = 22V 25 = 27V 3 = 32V 38 = 38V 39 = 42V 4 = 42V 44 = 44V 49 = 49V 54 = 54V 56 = 6V 57 = 57V Clamping Voltage 58 = 6V 62 = 67V 65 = 67V 77 = 77V 8 = 8V 9 = 9V 11 = 1V 111 = 11V 121 = 12V 131 = 135V 151 = 15V 161 = 165V Packaging D = 7" (1)* R = 7" (4 or 2)* T = 13" (1,)* W = 7" (1,)** *Not available for 42 **Only available for 42 Termination P = Ni/Sn plated

2 ELECTRICAL CHARACTERISTICS AVX PN V W (DC) V W (AC) V B V C I VC I L E T I P Cap Vdc Vac V V A μa J A pf Freq Case VC633A ±2% K 63 VC853A ±2% K 85 VC853C ±2% K 85 VC1263A ±2% K 126 VC1263D ±2% K 126 VC425X ±2% M 42 VC635A ±2% K 63 VC855A ±2% K 85 VC855C ±2% K 85 VC1265A ±2% K 126 VC1265D ±2% K 126 VC429X ±15% M 42 VC639A ±15% K 63 VC859A ±15% K 85 VC8512A ±15% K 85 VC4214X ±12% K 42 VC6314A ±12% K 63 VC8514A ±12% K 85 VC8514C ±12% K 85 VC12614A ±12% K 126 VC12614D ±12% K 126 VC12116J ±1% K 121 VG181216P ±1% K 1812 VG181216P ±1% K 1812 VG22216Y ±1% K 222 VC4218X ±1% M 42 VC6318A ±1% K 63 VC8518A ±1% K 85 VC8518C ±1% K 85 VC12618A ±1% K 126 VC12618D ±1% K 126 VC12618E ±1% K 126 VG12118J ±1% K 121 VC12118J ±1% K 121 VG181218P ±1% K 1218 VG181218P ±1% K 1812 VG22218W ±1% K 222 VG12122R ±1% K 121 VG22222Y ±1% K 222 VG22222Y ±1% K 222 VC6326A ±1% K 63 VC8526A ±1% K 85 VC8526C ±1% K 85 VC12626D ±1% K 126 VC12626F ±1% K 126 VC12126H ±1% K 121 VG12126S ±1% K 121 VG181226P ±1% K

3 ELECTRICAL CHARACTERISTICS AVX PN V W (DC) V W (AC) V B V C I VC I L E T I P Cap Vdc Vac V V A μa J A pf Freq Case VG181226P ±1% K 1812 VG181226P ±1% K 1812 VG22226Y ±1% K 222 VG22226Y ±1% K 222 VG32226N ±1% K 322 VC633A ±1% K 63 VC853A ±1% M 85 VC853C ±1% K 85 VC1263D ±1% K 126 VC1213G ±1% K 121 VC1213H ±1% K 121 VC1213S ±1% K 121 VC8531C ±1% K 85 VC12631M ±1% K 126 VG12131R ±1% K 121 VG181231P ±1% K 1812 VG22231Y ±1% K 222 VC8538C ±1% K 85 VC12638N ±1% K 126 VG12138S ±1% K 121 VG181238U ±1% K 1812 VG22238Y ±1% K 222 VG32238J ±1% K 322 VC12642L ±1% K 126 VC12645K ±1% K 126 VG12145S ±1% K 121 VG181245U ±1% K 1812 VG22245Y ±1% K 222 VC12648D ±1% K 126 VC12148G ±1% K 121 VC12148H ±1% K 121 VC12656F ±1% K 126 VG12156P ±1% K 121 VG181256U ±1% K 1812 VG22256Y ±1% K 222 VC1216J ±1% K 121 VC12665L ±1% K 126 VC12665M ±1% K 126 VG12165P ±1% K 121 VG181265U ±1% K 1812 VG22265Y ±1% K 222 VC12185S ±1% K 121 VG181285U ±1% K 1812 VG22285Y ±1% K 222 V W (DC) DC Working V W (AC) AC Working V B Typical Breakdown Voltage 1mA DC ) V C Clamping Voltage I VC ) I VC Test Current for V C (A, 8x2μS) I L Maximum Leakage Current at the Working Voltage (μa) E T I P Cap Freq Transient Energy Rating (J, 1x1μS) Peak Current Rating (A, 8x2μS) Typical Capacitance frequency specified and.5 V RMS Frequency at which capacitance is measured (K = 1kHz, M = 1MHz)

4 L W T t DIMENSIONS: mm (inches) (L) Length AVX Style mm 1.±.1 1.6± ±.2 3.2±.2 3.2±.2 4.5±.3 5.7±.4 8.2±.4 (in.) (.4±.4) (.63±.6) (.79±.8) (.126±.8) (.126±.8) (.177±.12) (.224±.16) (.323±.16) (W) Width mm.5±.1.8± ±.2 1.6± ±.2 3.2±.3 5.±.4 5.±.4 (in.) (.2±.4) (.31±.6) (.49±.8) (.63±.8) (.98±.8) (.126±.12) (.197±.16) (.197±.16) (T) Max Thickness mm (.4) max. (in.) (.24) (.35) (.4) 1.27 (.5) 1) (.67) (.8) (.98) (.98 max.) 1.7 (.67) 2) (t) Land Length mm.25±.15.35± max..94 max max. 1. max. 1. max. 1.3 max. (in.) (.1±.6) (.14±.6) (.28 max.) (.37 max.) (.45 max.) (.39 max.) (.39 max.) (.51 max.) 1) Applicable for: VC12618E38 2) Applicable for: VC12626F54, VC12631M65, VC12638N77, VC12642L8, VC12645K9, VC12656F111, VC1266M131 A C B A D SOLDERING PAD: mm (inches) Pad Layout A 1.61 (.24).89 (.35) 1.2 (.4) 1.2 (.4) 1.2 (.4) 1. (.39) 1. (.39) 2.21 (.87) B 1.51 (.2).76 (.3) 1.2 (.4) 2.3 (.8) 2.3 (.8) 3.6 (.142) 4.6 (.18) 5.79 (.228) C 1.7 (.67) 2.54 (.1) 3.5 (.12) 4.6 (.16) 4.6 (.16) 5.6 (.22) 6.6 (.26) 1.21 (.42) D 1.51 (.2).76 (.3) 1.27 (.5) 1.65 (.65) 2.54 (.1) 3. (.118) 5. (.2 ) 5.5 (.217)

5 TYPICAL PERFORMANCE CURVES (42 CHIP SIZE) VOLTAGE/CURRENT CHARACTERISTICS Multilayer construction and improved grain structure result in excellent transient clamping characteristics up to 2 amps peak current, while maintaining very low leakage currents under DC operating conditions. The VI curves below show the voltage/current characteristics for the 5.6V, 9V, 14V, 18V and low capacitance StaticGuard parts with currents ranging from parts of a micro amp to tens of amps. PULSE DEGRADATION Traditionally varistors have suffered degradation of electrical performance with repeated high current pulses resulting in decreased breakdown voltage and increased leakage current. It has been suggested that irregular intergranular boundaries and bulk material result in restricted current paths and other non-schottky barrier paralleled conduction paths in the ceramic. Repeated pulsing of TransGuard transient voltage suppressors with 15Amp peak 8 x 2μS waveforms shows negligible degradation in breakdown voltage and minimal increases in leakage current VC4LC18V5 VC4218X4 VC4214X3 VC429X2 VC425X15 ESD TEST OF 42 PARTS 35 VC4LC18V PEAK POWER VS PULSE DURATION 13 BREAKDOWN VOLTAGE (Vb) VC4218X4 VC4214X3 VC429X2 VC425X15 PEAK POWER (W) VC4218X4 VC4214X3 VC429X2 VC4LC18V5 VC425X kV ESD STRIKES INSERTION LOSS CHARACTERISTICS db VC4LC18V VC4218X -15 VC4214X VC429X VC425X IMPULSE DURATION (μs) Frequency (GHz)

6 TYPICAL PERFORMANCE CURVES (63, 85, 126 & 121 CHIP SIZES) VOLTAGE/CURRENT CHARACTERISTICS Multilayer construction and improved grain structure result in excellent transient clamping characteristics up to 5 amps peak current, depending on case size and energy rating, while maintaining very low leakage currents under DC operating conditions. The VI curve below shows the voltage/current characteristics for the 3.3V, 5.6V, 12V, 14V, 18V, 26V, 3V, 48V and 6VDC parts with currents ranging from parts of a micro amp to tens of amps. 25 VI Curves - 3.3V and 5.6V Products VI Curves - 9V, 12V, and 14V Products V,.1J 3.3V, >.1J 5.6V,.1J 5.6V, >.1J VI Curves - 18V and 26V Products V,.1J 12V,.1J 14V,.1J 14V, >.1J VI Curves - 3V, 48V, and 6V Products V,.1J 18V, >.1J 26V,.1J 26V, >.1J 1 2 VI Curve - 85V Product V,.1J 3V, >.1J 48V 6V 4 1.E-9 1.E-6 1.E-3 1.E+ 1.E

7 TYPICAL PERFORMANCE CURVES (63, 85, 126 & 121 CHIP SIZES) 3.3V

8 TYPICAL PERFORMANCE CURVES (63, 85, 126 & 121 CHIP SIZES) TEMPERATURE CHARACTERISTICS TransGuard suppressors are designed to operate over the full temperature range from -55 C to +125 C. This operating temperature range is for both surface mount and axial leaded products. Voltage as a Percent of Average Breakdown Voltage Temperature Dependence of Voltage C 25 C 85 C 125 C Energy Derating TYPICAL ENERGY DERATING VS TEMPERATURE.2 Typical Breakdown (V B ) and Clamping (V C ) Voltages TYPICAL BREAKDOWN AND CLAMPING VOLTAGES VS TEMPERATURE - 5.6V 5.6V o Temperature ( C) VC V B Temperature ( oc) Typical Breakdown (V B ) and Clamping (V C ) Voltages Typical Breakdown (V B ) and Clamping (V C ) Voltages TYPICAL BREAKDOWN AND CLAMPING VOLTAGES VS TEMPERATURE - 18V 18V ( VC ) ( V B ) o Temperature ( C) TYPICAL BREAKDOWN AND CLAMPING VOLTAGES VS TEMPERATURE - 26V 26V ( V ) C ( V B ) Temperature ( C) Capacitance Relative to 25 C TYPICAL CAPACITANCE VS TEMPERATURE 25 C Reference Average Temperature ( C)

9 TYPICAL PERFORMANCE CURVES (63, 85, 126 & 121 CHIP SIZES) PULSE DEGRADATION Traditionally varistors have suffered degradation of electrical performance with repeated high current pulses resulting in decreased breakdown voltage and increased leakage current. It has been suggested that irregular intergranular boundaries and bulk material result in restricted current paths and other non-schottky barrier paralleled conduction paths in the ceramic. Repeated pulsing of both 5.6 and 14V TransGuard transient voltage suppressors with 15 Amp peak 8 x 2μS waveforms shows negligible degradation in breakdown voltage and minimal increases in leakage current. The plots of typical breakdown voltage vs number of 15A pulses are shown below. Change in Breakdown Voltage (%) Change in Breakdown Voltage (%) 1% 8% 6% 4% 2% % Number of Strikes Figure 1 VC12618D4 VC12626D58 VC12614D3 VC1265D15 Repetitive Peak Current Strikes TransGuard 85.1J and.3j Products 15% 1% 5% % Repetitive Peak Current Strikes TransGuard 126.4J Product Number of Strikes Figure 2 VC8518A4 VC8518C4 Change in Breakdown Voltage (%) Change in Breakdown Voltage (%) Repetitive Peak Current Strikes TransGuard J Product 1% 8% 6% 4% 2% % 3% 25% 2% 15% 1% 5% % VC12118J Number of Strikes Figure 3 Repetitive Peak Current Strikes StaticGuard 85.1J Product VC8LC18A Number of Strikes Figure 4 CAPACITANCE/FREQUENCY CHARACTERISTICS TransGuard Capacitance vs Frequency 63 TransGuard Capacitance vs Frequency 85 TransGuard Capacitance vs Frequency Capacitance Change (%) VC635A15 VC6LC18X5 VC6326A Frequency (MHz) Capacitance Change (%) VC855C15 2 VC8518C4 VC8514A Frequency (MHz) Capacitance Change (%) VC12614D3 VC12648D11 VC12LC18A Frequency (MHz)