Chip Varistor for Surge Current Suppression
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1 Chip Varistor for Surge Current Suppression SMD type, suitable for high density mounting Excellent clamping ratio and strong capability of surge current suppression
2 Contents Unique characteristics Newly chip Varistor for surge current suppression SMD type, suitable for high density mounting Excellent clamping ratio and strong capability of surge current suppression Technolog information of SDVL series Product identifications Terms and descriptions Property range Cross reference Varistor VS. TVS Application
3 Newly chip Varistor for surge current suppression The surge current and voltage caused by SMPS module or lighting which has high energy may destroy the IC chip or telecommunication port. Therefore, protection components should be set in the device to absorb the surge current and voltage energy and protect the IC ship and telecommunication module. Based on this background, has presented Chip Varistor for surge current suppression SDVL series. SMD type,suitable for high density mounting Excellent clamping ratio and strong capability of surge current suppression Available in a standard EIA compatible case size Excellent solderability (Ni, Sn plating)
4 SMD type, suitable for high density mounting Dimensions of SDVL(Compare with SM*J TVS) P/N L(mm) W(mm) T(mm) Surface saved(%) SDVL ± ± Max 144 SMAJ / SDVL ± ± Max 143 SMBJ / SDVL ± ± Max 233 SMCJ / SDVL ± ± Max 68 SMDJ /
5 Excellent clamping ratio and strong capability of surge current suppression Characteristics of SDVL series(compare with SM*J TVS) Varitor TVS P/N Dimensions (mm) Pulse Power Dissipation P (W) Ip (A) 8/20μS P/N Dimensions (mm) Pulse Power Dissipation P (W) Ip (A) 8/20μS SDVL *1.6* ~ ~300 SMAJ 5.0*2.5* ~195 SDVL *2.5* ~ ~400 SMBJ 5.4*3.6* ~293 SDVL *3.2* ~ ~800 SMCJ 8.0*6.0* ~733 SDVL *5.0* ~ ~1200 SMDJ 8.0*6.0* ~1250
6 Excellent clamping ratio and strong capability of surge current suppression Characteristics of SDVL series(compare with competitor) Manufacturer P/N Max. Vdc(V) V 1mA (V) Cp(pF)@ 1kHz Max. Clamping Voltage(V) Peak Current 8/20μS(A) Energy 10/1000 μs (J) SUNLORD SDVL ~100 12~120 80~ ~ ~ ~1.2 EP*** CT ~85 11~100 / 27~ ~ ~1.1 SUNLORD SDVL ~100 12~ ~ ~ ~ ~2.3 EP*** CT ~85 11~100 / 27~ ~ ~2.3 SUNLORD SDVL ~100 12~ ~ ~ ~ ~4.3 EP*** CN ~45 8~56 / 17~90 500~ ~4.0 SUNLORD SDVL ~100 12~ ~ ~ ~ ~12.0 EP*** CN ~56 8~68 / 17~ ~ ~12.0
7 Contents Unique characteristics Newly chip Varistor for surge current suppression SMD type, suitable for high density mounting Excellent clamping ratio and strong capability of surge current suppression Technolog information of SDVL series Product identifications Terms and descriptions Property range Cross reference Varistor VS. TVS Application
8 Product identifications SDVL 4532 S D 180 P T Type SDVL Chip Varitor 4 Type of Working Voltage A AC Working Voltage D DC Working Voltage 7 Packing T Tape & Reel 2 Dimensions (mm) 3216 [1206] [1210] [1812] [2220] Max. Continuous Working Voltage Example Nominal Value V V 3 Tolerance of Varistor Voltage K ±10% S Special 6 Terminal Code P Sn plating
9 Terms and descriptions V DC: Working DC Voltage This is the maximum continuous DC voltage which may be applied up to the maximum operation temperature of the device and is also used as the reference point for leakage current. This voltage is always less than the breakdown voltage of device. V AC: Working AC Voltage This is the maximum continuous sinusoidal RMS voltage which may be applied up to the maximum operating temperature of the device. I l: Leakage Current at Rated DC Voltage In the non-conduction mode, the device is at a very high impedance and appears as an almost open circuit in the system. The leakage current drawn at this level is very low. V B: Varistor Voltage This is the voltage at which the device changes from the off-state to the on-state and enters Its conduction mode of operation. The voltage is usually characterized at the 1mA point and has a specified minimum and maximum voltage listed.
10 Terms and descriptions V C: Clamping Voltage This is the peak voltage appearing across the suppressor when measured at conditions of specified pulse current and specified waveform(8/20 or ESD pulse). This is important to note the peak current and peak voltage may not necessarily be coincidental in time. C P: Capacitance This is capacitance of Varistor which is measured at frequency of 1MHz and 0.5V (AC voltage). IP: Maximum Surge Current This is the maximum peak current which may be applied for an 8/20us impulse with rated working voltage also applied, without causing device failure. The pulse can be applied to the device in either polarity with the same confidence factor. ET: Maximum Surge Energy This is the maximum rated transient energy which may be Dissipated for a single current pulse at a specified impulse duration (10/1000us) with the rated DC or RMS voltage applied, without causing device failure.
11 Cross reference Epcos CT1206 series CT1210 series CT1812 series CT2220 series Littelfuse V18AUMLA1206/V- MLA1206 series V18AUMLA1210 /V- MLA1210 series V18AUMLA1812 series V18AUMLA2220 series SDVL3216 Series SDVL3225 series SDVL4532 series SDVL5650 series
12 Contents Unique characteristics Newly chip Varistor for surge current suppression SMD type, suitable for high density mounting Excellent clamping ratio and strong capability of surge current suppression Technolog information of SDVL series Product identifications Terms and descriptions Property range Cross reference Varistor VS. TVS Application
13 Varistor VS. TVS EMC effect Rg Rb Cb TVS / GDT / PESD Varistor Signal/Power line TVS/GDT/PESD Circuit / Device Signal/Power Varistor Circuit / Device Both TVS and PESD had no capability of absorbing ESD energy which may generate in the circuit and causes EMI. Varisor can absorb part of energy, therefore it is good for EMC capability of device.
14 Varistor VS. TVS V-I graph SDVL3216KD260PT As for Varistor and TVS (comparable characteristics), V-I graphs are almost the same; Peak pulse current: Varistor can reach 250A,while TVS is 200A; As for the same scale characteristics, Varistor only takes up 32.5% PCB real estate of that of TVS.
15 Varistor VS. TVS Characteristics comparison 350 SMAJ SDVL SMAJ SDVL3216 Ip(8/20μS)(A) Vdc(V) P(10/1000μS)(W) Vdc(V) Lp of TVS decreases with the increasing of Vdc; Lp of Varistor stays generally with the increasing of Vdc; Varistor can be used for energy absorbing and transient suppressing in those circuit which surge current/voltage may accrue.
16 Varistor VS. TVS Characteristics comparison Et(10/1000μS)(J) SDVL Vdc(V) Et of Varistor raises dramatically with the increasing of Vdc TVS has no capability of absorbing pulse energy, only conduct the energy to ground.
17 Contents Unique characteristics Newly chip Varistor for surge current suppression SMD type, suitable for high density mounting Excellent clamping ratio and strong capability of surge current suppression Technolog information of SDVL series Product identifications Terms and descriptions Property range Cross reference Varistor VS. TVS Application
18 How to Choose Chip Varistor for surge current suppression V WDC 1.2 Vn, V WDC : max. working voltage of varistor; Vn: system rated voltage. Peak current of varistor (Ip) should exceed the impulse current occurred in the circuit. (Generally, Ip 150A) Clamping voltage should be under the voltage that device to be protected can stand for.
19 Application Application fields LCD-TV STB LED Lighting(External Power Supply) Automotive Electronics Networking products(switch, router) PLC, Security system
20 LCD-TV/STB/PC L N IC AC AC-DC DC-DC driver Port Signal I/ O No. 1 2/3 Varitor SDVL10080KA301PT/ CNR-10D471 SDVL4532SD380PT Effect suppressing Induced over-voltage cased by power and lightning suppressing Induced / switching over-voltage cased by lightning and power, protecting DC- DC Module (can replace TVS such as SMAJ/SMBJ) Parameter System rated voltage: Vac=220V, Max. V AC =300V, Ip=1200A, Et=32.2J System rated voltage: Vdc=24V, Max. Vdc=38V, Ip=400~800A, Et=1.7~3.7J 4 SDVL5650SD5R5PT series connect with GDT (BC201M)/Diode suppressing Induced over-voltage cased by power and lightning for I/O ports (can replace TVS such as SMCJ/SMDJ) System rated voltage: Vsig 3.6V, Max. Vdc=5.5V Ip=800~1200A, Et=1.9~4.0J Cp<1pF
21 LED Lighting (external Power module) External power supply 1 2 IC driver LED tube No. 位置 Varitor Effect Parameter 1 indoor outdoor SDVL3225SD380PT SDVL4532SD380PT suppressing Induced / switching over-voltage cased by lightning and external power supply module, protecting IC driver (can replace TVS such as SMBJ/SMCJ) System rated voltage:vdc=24v, Max. Vdc=38V, Ip=120~300A, Et=0.4~ 2.3J System rated voltage :Vdc=24V, Max. Vdc=38V, Ip=400~800A, Et=1.7~ 3.7J 2 indoor SDV1608H380C100N PTF LED Tube ESD protection System rated voltage :Vdc=24V, Max. Vdc=38V, Cp=10~360pF outdoor SDVL3216SD380PT LED Tube Lighting and ESD protection System rated voltage :Vdc=24V, Max. Vdc=38V, Ip=200~300A, Et=0.5~ 0.7J External Power module:adaptor (12~36Vdc), Battery, Solar power supply, DC power(12v/24vac)
22 Communication module/plc/security system L N IC AC AC-DC DC-DC Driver Ports Signal I/O No. Varistor Effect Parameter 1 SDVL10080KA301PT/ CNR-10D471 suppressing Induced over-voltage cased by lightning System rated voltage:vac=220v, Max. Vac=300V, Ip=1200A, Et=32.2J 2/3 SDVL4532SD380PT suppressing Induced / switching overvoltage cased by lightning and power, protecting DC-DC Module (can replace TVS such as SMAJ/SMBJ) System rated voltage :Vdc=24V, Max. Vdc=38V, Ip=400~800A, Et=1.7~3.7J 4 SDV1608H380C100NPT ESD protection for ports System rated voltage :Vdc=24V, Max. Vdc=38V,Cp=10~360pF SDVL5650SD5R5PT series connect with GDT(BC201M) /Diode suppressing Induced over-voltage cased by lightning for I/O ports (can replace TVS such as SMCJ/SMDJ) System rated voltage: Vsig 3.6V, Max. Vdc=5.5V, Ip=800~1200A, Et=1.9~4.0J, Cp<1pF
23 Automotive Electronics 12V/24Vdc Automotive Electronics Control Gear 1 2 动力传动系统 driveline Chassis Control System 3 4 Vehicle Lamp Control System Lock Control System 12V/24Vdc Mounted Automotive Electronic Electronic Stabilization Program Driving Information System Navigational System Tire Pressure Monitor Systems Car Sound Systems power rear view 车身电子控制系统 mirror control system Power Windows Air Conditioning Control System Supplemental Inflatable Restraint Control System 13 on-board communication system
24 Automotive Electronics No. Varistor Effect Parameter 1~2 SDVL4532SD180PT/ SDVL4532SD380PT Suppressing Switching over-voltage cased by load dump transient System rated voltage:vdc=12v Max. Vdc=18V, Ip=800A, Et=2.3J System rated voltage :Vdc=24V Max. Vdc=38V, Ip=800A, Et=4.2J 3~8 SDVL3225SD180PT/ SDVL3225SD380PT Suppressing Switching over-voltage cased by load dump transient System rated voltage:vdc=12v Max. Vdc=18V, Ip=400A, Et=1.5J System rated voltage:vdc=24v Max. Vdc=38V, Ip=300A, Et=2J 9~13 SDVL3216S180PT/ SDV1608E180C600NPTF /SDVL3216S380PT Suppressing Switching over-voltage cased by load dump transient and protect ESD damage System rated voltage:vdc=12v Max. Vdc=18V, Ip=300A, Et=0.7J System rated voltage:vdc=24v Max. Vdc=38V, Ip=200A, Et=0.5J
25 Smart Meter 3 Current date Voltage data Power AC AC-DC DC-DC 5 Keypad 6 Remote Record
26 Smart Meter No. Varistor Effect Parameter 1 SDV10080KA301PT/ CNR-10D471 suppressing Induced overvoltage cased by lightning System rated voltage:vac=220v, Max. Vac=300V, Ip=1200A, Et=32.2J 2 SDVL3216SD180PT suppressing Induced / switching over-voltage cased by lightning and switching, protecting DC-DC Module System rated voltage :Vdc=12V Max. Vdc=18V, Ip=300A, Et=0.7J 3 SDV1608A5R5C201NPTF suppressing Induced overvoltage cased by lightning, protecting Current data module Max. Vdc=5.5V, Ip=30A, Et=0.1J 4 SDV1608A5R5C201NPTF suppressing Induced overvoltage cased by lightning, protecting Voltage data module Max. Vdc=5.5V, Ip=30A, Et=0.1J 5 SDV1608A5R5C201NPTF/ SDV1608H180C050YPTF suppressing Induced overvoltage cased by lightning and ESD, protecting buttons. Max. Vdc=5.5V, Ip=30A, Et=0.1J/General ESD protection 6 SDV1608A5R5C201NPTF/ SDV1608H180C050YPTF suppressing Induced overvoltage cased by lightning and ESD, protecting remote record module. Max. Vdc=5.5V, Ip=30A, Et=0.1J/General ESD protection
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