huaju
Chip varistor for LED lighting
The varistor is a voltage-limiting protection device. Utilizing the nonlinear characteristics of the varistor, when overvoltage occurs between the two poles of the varistor, the varistor can clamp the voltage to a relatively fixed voltage value, thereby protecting the subsequent circuit. The main parameters of the varistor are: varistor voltage, current capacity, junction capacitance, response time, etc.
- Commodity name： Chip varistor for LED lighting
- 产品描述
- 产品规格及参数
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The varistor is a voltage-limiting protection device. Utilizing the nonlinear characteristics of the varistor, when overvoltage occurs between the two poles of the varistor, the varistor can clamp the voltage to a relatively fixed voltage value, thereby protecting the subsequent circuit. The main parameters of the varistor are: varistor voltage, current capacity, junction capacitance, response time, etc.
The response time of the varistor is ns level, which is faster than the air discharge tube and slightly slower than the TVS tube. Generally, its response speed can meet the requirements for over-voltage protection of electronic circuits. The junction capacitance of a varistor is generally in the order of hundreds to thousands of Pf. In many cases, it is not suitable to be directly used in the protection of high-frequency signal lines. When used in the protection of AC circuits, its large junction capacitance will increase leakage. Current needs to be fully considered when designing protective circuits. The flow capacity of the varistor is larger, but smaller than that of the gas discharge tube.
The biggest feature of the varistor is that when the voltage applied to it is lower than its threshold "UN", the current flowing through it is extremely small, equivalent to a closed valve. When the voltage exceeds UN, its The resistance becomes smaller, which causes the current flowing through it to surge without much change in the impact on other circuits, thereby reducing the impact of overvoltage on subsequent sensitive circuits. Using this function, abnormal overvoltage that often occurs in the circuit can be suppressed and the circuit can be protected from overvoltage damage.
Nanjing Huaju Electronics specializes in the production of sensitive components. The chip varistors produced by the company are widely used in mobile phones, computers, MP3 and other electronic products. The supporting manufacturers include TCL, Konka, ZTE, Tianma Micro, Tongzhou and other IT manufacturers. . And OEM for some large enterprises. Huaju Electronics has won the respect and trust of the industry with its excellent product quality and strong R&D team. Due to their small size, chip varistors are increasingly used in some handheld devices and miniaturized electronic devices.
1. Application scope of chip varistor:
·Protect components and circuits from ESD generated on power supply, control and signal lines
·Provide line overvoltage protection for ICCMOS and MOSFET.
·Can replace surface mount TVS Zener diodes in many fields
·Used to assist various terminal products to achieve electromagnetic compatibility
2. Specific applications of chip varistors:
·Laptops, digital cameras, PDAs, mobile phones, MP3s, motherboards, routers, automotive electronics, LCD modules, Internet phones, microphones and headsets, etc.
3. Model name, appearance structure and dimensions:
3.SMD varistor appearance structure and size: (mm)
Specification
Overall dimensions (mm)
imperial Metric L W T M 0402 1005 1.0±0.10 0.5 ± 0.10 0.5 ± 0.20 0.30+0.2/-0.1 0603 1608 1.6±0.15 0.8 ±0.10 0.8 ± 0.20 0.30+0.2/-0.1 0805 2012 2.0±0.20 1.25 ±0.15 0.8 ± 0.20 0.30+0.2/-0.1 1206 3216 3.2 ± 0.20 1.6±0.15 1.2±0.20 0.40+0.2/-0.2 1210 3225 3.2 ± 0.20 2.5±0.20 1.2±0.20 0.40+0.2/-0.1 1812 4532 4.5±0.20 3.20 ±0.20 1.3 ± 0.20 0.50+0.2/-0.1 2220 5650 5.7±0.20 5.00 ±0.20 1.5±0.20 0.80+0.2/-0.1 3220 08CL 8.0±0.20 5.00 ±0.20 2.0±0.20 0.80+0.2/-0.1 3225 08CL 8.0±0.30 6.30 ±0.30 2.0±0.20 0.70+0.2/-0.1 4032 10CL 10.0±0.20 8.00 ±0.20 2.0±0.20 0.80+0.2/-0.1 4840 12CL 12.0±0.20 10.00 ±0.20 2.5±0.20 0.80+0.2/-0.1 COB stands for chip On board. It means that the bare chip is adhered to the interconnection substrate with conductive or non-conductive adhesive, and then wire bonded to realize its electrical connection. COB LED is also called COB LED source, COB LED module. There are three packaging forms: long/square/circular.
With the development of LED patching, LED protection devices must also be flattened. Currently, the vast majority of varistors on the market are plug-in varistors. Huaju Electronics timely launches chip varistors for COB LED modules. This series of varistor has the characteristics of thin thickness <2mm, small size of 8.0x6.3, and large flow rate. It has been widely used in several major LED manufacturers.
Large size high energy chip varistor in ceramic package
Application of high-energy chip varistor in LED protection
surface
model Varistor voltage Maximum continuous operating voltage Maximum limit voltage energy tolerance Maximum flow energy Maximum static power capacitance Leakage current 8/20us Vdc Vac Vdc 2mS A W pF Vdc IP SMD5D271K 270±10% 175 255 480 5 6.1 500 0.1 75 ≤ 20uA SMD5D471K 470±10% 300 385 810 5 10.6 500 0.1 55 SMD5D511K 510±10% 320 428 880 5 11.5 500 0.1 55 SMD5D561K 560±10% 350 460 920 5 12.5 500 0.1 55 SMD7D271K 270±10% 175 255 480 10 12.6 1000 0.25 190 SMD7D471K 470±10% 300 385 810 10 28 1000 0.25 90 SMD7D511K 510±10% 320 428 880 10 30 1000 0.25 80 SMD7D561K 560±10% 350 460 920 10 32 1000 0.25 70 SMD10D271K 270±10% 175 255 480 25 30 2000 0.4 330 SMD10D471K 470±10% 300 385 810 25 52 2000 0.4 190 SMD10D511K 510±10% 320 428 880 25 56 2000 0.4 180 SMD10D561K 560±10% 350 460 920 25 60 2000 0.4 170 BSMD05D271K 270±10% 175 255 480 5 6.1 500 0.1 75 BSMD05D471K 470±10% 300 385 810 5 10.6 500 0.1 55 BSMD05D511K 510±10% 320 428 880 5 11.5 500 0.1 55 BSMD05D561K 560±10% 350 460 920 5 12.5 500 0.1 55 BSMD07D271K 270±10% 175 255 480 10 12.6 1000 0.25 190 BSMD07D471K 470±10% 300 385 810 10 28 1000 0.25 90 BSMD07D511K 510±10% 320 428 880 10 30 1000 0.25 80 BSMD07D561K 560±10% 350 460 920 10 32 1000 0.25 70 BSMD10D271K 270±10% 175 255 480 25 30 2000 0.4 330 BSMD10D471K 470±10% 300 385 810 25 52 2000 0.4 190 BSMD10D511K 510±10% 320 428 880 25 56 2000 0.4 180 BSMD10D561K 560±10% 350 460 920 25 60 2000 0.4 170 - - Has a wide range of products such as SMD and plug-in types
- - Small package with high surge current capability
- - Can use fluid/reflow soldering
Table 1
use shape SMD patch type series SMD1210SHXXX-2X1 SMD1812SH-XXX-501 SMD2220SHXXX-501 SMD2220SHXXX-801 Varistor voltage Maximum circuit voltage allowed
model Surge current capability model Surge current capability model Surge current capability model Surge current capability ACrms DC 8/20µs
1time8/20µs
1time8/20µs
1time8/20µs
1timefor AC 110 Vac 200V 130V 170V 220V 140V 180V 240V 150V 200V 1210SH201 250A 1812SH201 400 270V 175V 225V 1210SH221 250A 1812SH221 400 3220SH221 500A 3220SH221 800A 330V 210V 270V 360V 230V 300V for AC 220 Vac 390V 250V 320V 1210SH321 200A 1812SH321 400 2220SH321 500A 2220SH321 800A 430V 275V 350V 1210SH351 250A 1812SH351 400 2220SH351 500A 2220SH351 800A 470V 300V 385V 1210SH381 250A 1812SH381 500 2220SH381 500A 2220SH381 800A 560V 350V 460V 2220SH461 500A 2220SH461 800A 620V 385V 505V 680V 420V 560V 2220SH561 500A 2220SH561 800A 750V 460V 615V 820V 510V 670V Table 2
use shape SMD patch type series SMD3220HXXX-501 SMD3220SHXXX-801 SMD patch series SSMD patch series Varistor voltage Maximum circuit voltage allowed model Surge current capability model Surge current capability model Surge current capability model Surge current capability ACrms DC 8/20µs
1time8/20µs
1time8/20µs
1time8/20µs
1timefor AC 110 Vac 200 V 130 V 170 V 3225H171 400A 3225H171 400A 220V 140 V 180 V 3225H181 400A 3225H181 400A 240 V 150 V 200 V 3225H201 400A 3225H201 400A 270V 175V 225V 3220H221 400A 3225H221 400A 3225H221 400A 330 V 210 V 270 V 3225H271 400A 3225H271 400A 360 V 230 V 300 V 3225H301 400A 3225H301 400A for AC 220 Vac 390V 250V 320V 3220H321 400A 3225H321 400A 3225H321 400A 430 V 275 V 350V 3220H351 400A 3220SH351 800A 3225H351 400A 3225H351 400A 470 V 300 V 385 V 3220H381 400A 3220SH381 800A 3225H381 400A 3225H381 400A 560V 350V 460 V 620 V 385 V 505 V 680 V 420 V 560V 750V 460 V 615 V 820 V 510 V 670 V table 3
use shape SMD patch type Plug-in type series SMD, SSMD patch series φ5 series φ7 series φ10 series Varistor voltage Maximum circuit voltage allowed model Surge current capability model Surge current capability model Surge current capability model
Surge current capability ACrms DC 8/20µs
1time8/20µs
1time8/20µs
1time8/20µs
1timefor AC 110 Vac 200 V 130 V 170 V 4032H171 1200A MYG5D201K 400 A MYG7D201K 600A MYG10D201K 1250A 220V 140 V 180 V 4032H181 1200A MYG5D221K 400 A MYG7D221K 600A MYG10D221K 1250A 240 V 150 V 200 V 4032H201 1200A MYG5D241K 400 A MYG7D241K 600A MYG10D241K 1250A 270V 175V 225V 4032H221 1200A MYG5D271K 400 A MYG7D271K 600A MYG10D271K 1250A 330 V 210 V 270 V 4032H271 1200A MYG5D331K 400 A MYG7D331K 600A MYG10D331K 1250A 360 V 230 V 300 V 4032H301 1200A MYG5D361K 400 A MYG7D361K 600A MYG10D361K 1250A for AC 220 Vac 390V 250V 320V 4032H321 1200A MYG5D391K 400 A MYG7D391K 600A MYG10D391K 1250A 430 V 275 V 350V 4032H351 1200A MYG5D471K 400 A MYG7D431K 600A MYG10D431K 1250A 470 V 300 V 385 V 4032H381 1200A MYG5D471K 400 A MYG7D471K 600A MYG10D471K 1250A 560V 350V 460 V MYG5D511K 400 A MYG7D511K 600A MYG10D511K 1250A 620 V 385 V 505 V MYG10D621K 1250A 680 V 420 V 560V MYG10D681K 1250A 750V 460 V 615 V MYG10D751K 1250A 820 V 510 V 670 V MYG10D821K 1250A
model
Operating Voltage Varistor voltage Maximum limit voltage Circulation maximum energy capacitance Vac Vdc V1mA(V) Vc(V)
IN(A) Et(J) CP(pF) Vb(V) 8/20μs
IP(A) 8/20μs 10/1000μs 1KHz/1V SMD3225H181NXT 140 180 220 ±10% 360 5 400 7.5 95 SMD3225H201NXT 150 200 240 ±10%
395 5 400 9.0 90 SMD3225H221NXT 175 225 270 ±10%
455 5 400 9.5 75 SMD3225H351NXT 275 350 430 ±10% 710 5 400 13.0 50 SMD3225H381NXT 300 385 470 ±10% 775 5 400 15.0 45 4.SMD plastic chip varistor appearance structure and size: (mm)
Specification
voltage range
Overall dimensions (mm) imperial Metric V
L W H SSMD3225 08CL V1mA=180~270 8.00 ± 0.30 6.30 ±0.30 3.2±0.30 V1mA=360~560 3.2±0.30 4.5±0.30 SSMD4032 10CL V1mA=180~270 10.0±0.30 8.00 ±0.30 3.2±0.30 V1mA=360~750 3.2±0.30 4.5±0.30 Commonly used high voltage chip varistor models
Specifications and models client Operating Voltage Varistor voltage maximum limit energy tolerance peak Part Number Customers P /
N
Working Voltage Varistor Voltage
Maximum Clamping Voltage
8/20 µsEnergy Absorption Peak
CurrentPeak
Current@1mA DC DC comminicate VB 10/1000µs 8/20µs DC AC volt volt volt ΔVB volt joule ampere Volts Volts Volts Volts Joules Amps SMD0806SH221KNXT-201 0806D271K 225 175 270 ±10% 280 1.1 200 SMD0806SH221KNXT-251 0806D271K-251 225 175 270 ±10% 380 1.2 250 SMD0806SH351KNXT-101 0806D431K 350 275 430 ±10% 710 1.2 100 SMD1206H850PKT 1206D101K 85 60 100 ±10% 175 0.8 120 SMD1206H101PKT 1206D121K 100 75 120 ±10% 210 0.8 120 SMD1206H121PKT 1206D151K 120 90 150 ±10% 260 0.8 120 SMD1206SH201PKT 1206D241K 200 150 240 ±10% 395 0.8 120 SMD1208SH201PKT-501 1206D241K 200 150 240 ±10% 395 2.3 500 SMD1208SH221PKT-501 1206D271K 220 175 270 ±10% 380 2.4 500 SMD1210H850PKT 1210D101K 85 60 100 ±10% 175 1.5 250 SMD1210H101PKT 1210D121K 100 75 120 ±10% 210 1.5 250 SMD1210H121PKT 1210D151K 120 90 150 ±10% 260 1.5 250 SMD1210SH221NKT-251 1210HD271K-251 225 175 270 ±10% 445 7.2 250 SMD1210SH221NKT-801 1210HD271K-801 225 175 270 ±10% 445 twenty three 800 SMD1210SH321NKT-201 1210HD391K-201 320 250 390 ±10% 650 7.2 200 SMD1210SH351NKT-251 1210HD431K-251 350 275 430 ±10% 710 8 250 SMD1210SH381NKT-251 1210HD471K-251 385 300 470 ±10% 775 8.2 250 SMD1210SH381NKT-501 1210HD471K-501 385 300 470 ±10% 775 8.2 500 SMD1812H850PKT 1812D101K 85 60 100 ±10% 175 4 800 SMD1812H101PKT 1812D121K 100 75 120 ±10% 210 4 800 SMD1812H121PKT 1812D151K 120 90 150 ±10% 260 4 800 SMD1812H151PKT 1812D181K 150 115 180 ±10% 315 4 800 SMD1812H181PKT 1812D201K 180 140 220 ±10% 380 4 800 SMD1812SH221NKT-401 1812HD271K-401 225 175 270 ±10% 445 10 400 SMD1812SH221NKT-501 1812HD271K-501 225 175 270 ±10% 445 12 500 SMD1812SH221NKT-102 1812HD271K-102 225 175 270 ±10% 445 twenty four 1000 SMD1812SH221NKT-202 1812HD271K-202 225 175 270 ±10% 445 48 2000 SMD1812SH321NKT-401 1812HD391K-401 320 250 390 ±10% 650 10 400 SMD1812SH351NKT-401 1812HD431K-401 350 275 430 ±10% 710 10 400 SMD1812SH381NKT-401 1812HD471K-401 385 300 470 ±10% 775 10 400 SMD1812SH381NKT-501 1812HD471K-501 385 300 470 ±10% 775 12 500 SMD1812SH381NKT-801 1812HD471K-801 385 300 470 ±10% 775 twenty four 800 SMD1812SH381NKT-102 1812HD471K-102 385 300 470 ±10% 775 29 1000 SMD2220SH850NKT-401 2220HD101K-401 85 60 100 ±10% 175 10 400 SMD2220SH850NKT-801 2220HD101K-801 85 60 100 ±10% 175 16 800 SMD2220SH101NKT-401 2220HD121K-401 100 75 120 ±10% 210 8 400 SMD2220SH101NKT-801 2220HD121K-801 100 75 120 ±10% 210 16 800 SMD2220SH121NKT-401 2220HD151K-401 120 90 150 ±10% 260 8 400 SMD2220SH121NKT-801 2220HD151K-801 120 90 150 ±10% 260 16 800 SMD2220SH151NKT-401 2220HD181K-401 150 115 180 ±10% 315 8 400 SMD2220SH151NKT-801 2220HD181K-801 150 115 180 ±10% 315 16 800 SMD2220SH181NKT-401 2220HD201K-401 180 140 220 ±10% 360 8 400 SMD2220SH181NKT-801 2220HD201K-801 180 140 220 ±10% 360 16 800 SMD2220SH201NKT-401 2220HD241K-401 200 150 240 ±10% 395 8 400 SMD2220SH201NKT-801 2220HD241K-801 200 150 240 ±10% 395 16 800 SMD2220SH221NKT-401 2220HD271K-401 225 175 270 ±10% 455 8 400 SMD2220SH221NKT-801 2220HD271K-801 225 175 270 ±10% 455 16 800 SMD2220SH271NKT-401 2220HD331K-401 275 210 330 ±10% 550 8 400 SMD2220SH271NKT-801 2220HD331K-801 275 210 330 ±10% 550 16 800 SMD2220SH321NKT-401 2220HD391K-401 320 250 390 ±10% 650 8 400 SMD2220SH321NKT-801 2220HD391K-801 320 250 390 ±10% 650 16 800 SMD2220SH351NKT-401 2220HD431K-401 350 275 430 ±10% 710 21.6 400 SMD2220SH351NKT-801 2220HD431K-801 350 275 430 ±10% 710 38 800 SMD2220SH381NKT-401 2220HD471K-401 385 300 470 ±10% 775 31.8 400 SMD2220SH381NKT-501 2220HD471K-501 385 300 470 ±10% 775 65 500 SMD2220SH381NKT-801 2220HD471K-801 385 300 470 ±10% 775 71.2 800 SMD2220SH381NKT-102 2220HD471K-102 385 300 470 ±10% 775 90 1000 SMD2220SH381NKT-182 2220HD471K-182 385 300 470 ±10% 775 160 1800 SMD2220SH411NKT-801 2220HD511K-801 410 320 510 ±10% 850 71.2 800 SMD2220SH451NKT-501 2220HD561K-501 455 325 560 ±10% 925 65 500 SMD3220H201NKT-401 3220HD241K-401 200 150 240 ±10% 395 16 400 SMD3220H201NKT-801 3220HD241K-801 200 150 240 ±10% 395 71.2 800 SMD3220H221NKT-401 3220D271K-401 225 175 270 ±10% 455 16 400 SMD3220H221NKT-801 3220D271K-801 225 175 270 ±10% 455 71.2 800 SMD3220H321NKT-401 3220D391K-401 320 250 390 ±10% 650 16 400 SMD3220H321NKT-801 3220D391K-801 320 250 390 ±10% 650 71.2 800 SMD3220H351NK 3220D431K 350 275 430 ±10% 710 16 400 SMD3220SH351NKT-801 3220HD431K-801 350 275 430 ±10% 710 16 800 SMD3220H381NKT 3220D471K 385 300 470 ±10% 775 16 400 SMD3220SH381NKT-801 3220HD471K-801 385 300 470 ±10% 775 16 400 SMD3225H181NKT 3225D221K 180 140 220 ±10% 360 16 400 SMD3225H201NKT 3225D241K 200 150 240 ±10% 395 16 400 SMD3225H221NKT 3225D271K 225 175 270 ±10% 455 16 400 SMD3225H271NKT 3225D331K 275 210 330 ±10% 550 16 400 SMD3225H321NKT 3225D391K 320 250 390 ±10% 650 16 400 SMD3225H351NKT 3225D431K 350 275 430 ±10% 710 16 400 SMD3225H381NKT 3225D471K 385 300 470 ±10% 775 16 400 SSMD3225H181NKT S3225D221K 180 140 220 ±10% 360 16 400 SSMD3225H201NKT S3225D241K 200 150 240 ±10% 395 16 400 SSMD3225H221NKT S3225D271K 225 175 270 ±10% 455 16 400 SSMD3225H271NKT S3225D331K 275 210 330 ±10% 550 16 400 SSMD3225H321NKT S3225D391K 320 250 390 ±10% 650 16 400 SSMD3225H351NKT S3225D431K 350 275 430 ±10% 710 16 400 SSMD3225H381NKT S3225D471K 385 300 470 ±10% 775 16 400 SMD4032H181NKT 4032D221K 180 140 220 ±10% 360 32 1200 SMD4032H201NKT 4032D241K 200 150 240 ±10% 395 32 1200 SMD4032H221NKT 4032D271K 225 175 270 ±10% 455 32 1200 SMD4032H271NKT 4032D331K 275 210 330 ±10% 550 32 1200 SMD4032H321NKT 4032D391K 320 250 390 ±10% 650 32 1200 SMD4032H351NKT 4032D431K 350 275 430 ±10% 710 32 1200 SMD4032H381NKT 4032D471K 385 300 470 ±10% 775 32 1200 SSMD4032H181NKT S4032D221K 180 140 220 ±10% 360 32 1200 SSMD4032H201NKT S4032D241K 200 150 240 ±10% 395 32 1200 SSMD4032H221NKT S4032D271K 225 175 270 ±10% 455 32 400 SSMD4032H271NKT S4032D331K 275 210 330 ±10% 550 32 1200 SSMD4032H321NKT S4032D391K 320 250 390 ±10% 650 32 1200 SSMD4032H351NKT S4032D431K 350 275 430 ±10% 710 32 1200 SSMD4032H381NKT S4032D471K 385 300 470 ±10% 775 32 1200
Key words:
Chip varistor for LED lighting
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