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Company address: 146B-101 Chunfeng Road, Longbeiling, Tangxia Town, Dongguan City
Mobile/WeChat:13713053585
Enterprise E-mail:2649073675@qq.com
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.
Classification:
Lightning protection varistor
Service Support:
137 1305 3585
- 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.
Product type description:
MYL5 type varistor has the characteristics of large current capacity, wide voltage range, short response time, good surge suppression, and easy installation and replacement. Therefore, it is widely used in railway automatic signals, traffic control centers, communication relay stations, low-voltage power distribution, semiconductor devices and various electrical equipment operating over-voltage protection and atmospheric over-voltage protection.
1. Characteristics
●Wide voltage range (47V～1200V)
● Large nonlinear coefficient
● Large flow capacity
● Fast response time (≤20ns)
2. Main uses
● Semiconductor device protection
● Surge overvoltage protection for household appliances
● Surge overvoltage protection for communication, measurement and control instruments
● Overvoltage protection for solenoid valve and relay operation 3. Model name, appearance, structure and dimensions:
4. Main technical parameters:
modelMaximum continuous operating voltageVaristor voltageMaximum limit
voltageFlow capacity (8/20u s)Maximum energy
(J)capacitanceAC(V)DC(V)V1mAVp(V)lp(A)1 time(A)2 times (A)2ms1KH Z (pF)MYL5□22S201K 130 170 200(180-220) 340 150 20000 15000 200 5800 MYL5□22S221K 140 180 220(198-242) 360 150 20000 15000 200 5450 MYL5□22S241K 150 200 240(216-264) 395 150 20000 15000 200 4900 MYL5□22S271K 175 225 270(243-297) 455 150 20000 15000 240 4700 MYL5□22S301K 190 245 300(270-330) 495 150 20000 15000 270 4300 MYL5□22S331K 215 275 330(297-363) 540 150 20000 15000 300 3720 MYL5□22S361K 230 300 360(324-396) 595 150 20000 15000 300 3350 MYL5□22S391K 250 320 390(351-429) 650 150 20000 15000 330 3000 MYL5□22S431K 275 350 430(387-473) 710 150 20000 15000 360 2800 MYL5□22S471K 300 385 470(423-517) 775 150 20000 15000 360 2600 MYL5□22S511K 320 415 510(459-561) 855 150 20000 15000 390 2400 MYL5□22S561K 350 455 560(504-616) 945 150 20000 15000 390 2200 MYL5□22S621K 380 505 620(558-682) 1025 150 20000 15000 390 2000 MYL5□22S681K 420 560 680(612-748) 1120 150 20000 15000 400 1800 MYL5□22S751K 460 615 750(675-825) 1240 150 20000 15000 440 1600 MYL5□22S821K 510 670 820(738-902) 1355 150 20000 15000 500 1500 MYL5□22S911K 550 745 910(819-1001) 1500 150 20000 15000 550 1350 MYL5□22S102K 625 825 1000(900-1100) 1650 150 20000 15000 600 1150 MYL5□22S112K 680 895 1100(990-1210) 1815 150 20000 15000 650 1000 MYL5□22S122K 705 970 1200(1080-1320) 1980 150 20000 15000 700 700 MYL5□34S201K 130 170 200(185-225) 340 200 30000 20000 270 6900 MYL5□34S221K 140 180 220(198-242) 360 200 30000 20000 270 6300 MYL5□34S241K 150 200 240(216-264) 395 200 30000 20000 300 5400 MYL5□34S271K 175 225 270(243-297) 455 200 30000 20000 300 4900 MYL5□34S301K 190 245 300(270-330) 495 200 30000 20000 330 4200 MYL5□34S331K 215 275 330(297-363) 540 200 30000 20000 350 3950 MYL5□34S361K 230 300 360(324-396) 595 200 40000 25000 350 3700 MYL5□34S391K 250 320 390(351-429) 650 200 40000 25000 370 3400 MYL5□34S431K 275 350 430(387-473) 710 200 40000 25000 400 3200 MYL5□34S471K 300 385 470(423-517) 775 200 40000 25000 430 3000 MYL5□34S511K 320 415 510(459-561) 855 200 40000 25000 460 2800 MYL5□34S561K 350 455 560(504-616) 945 200 40000 25000 500 2600 MYL5□34S621K 380 505 620(558-682) 1025 200 40000 25000 550 2450 MYL5□34S681K 420 560 680(612-748) 1120 200 40000 25000 600 2200 MYL5□34S751K 460 615 750(675-825) 1240 200 40000 25000 650 1700 MYL5□34S821K 510 670 820(738-902) 1355 200 40000 25000 700 1400 MYL5□34S911K 550 745 910(819-1001) 1500 200 40000 25000 750 1300 MYL5□34S102K 625 825 1000(900-1100) 1650 200 40000 25000 800 1150 MYL5□34S112K 680 895 1100(990-1210) 1815 200 40000 25000 900 850 MYL5□34S122K 705 970 1200(1080-1320) 1980 200 40000 25000 1050 740 MYL5□38S201K 130 170 200(185-225) 340 400 40000 25000 310 8100 MYL5□38S221K 140 180 220(198-242) 360 400 40000 25000 330 7800 MYL5□38S241K 150 200 240(216-264) 395 400 40000 25000 360 7400 MYL5□38S271K 175 225 270(243-297) 455 400 40000 25000 380 6750 MYL5□38S301K 190 245 300(270-330) 495 400 40000 25000 400 5900 MYL5□38S331K 215 275 330(297-363) 540 400 40000 25000 430 5300 MYL5□38S361K 230 300 360(324-396) 595 400 50000 30000 460 4700 MYL5□38S391K 250 320 390(351-429) 650 400 50000 30000 490 4300 MYL5□38S431K 275 350 430(387-473) 710 400 50000 30000 550 3900 MYL5□38S471K 300 385 470(423-517) 775 400 50000 30000 590 3500 MYL5□38S511K 320 415 510(459-561) 855 400 50000 30000 640 3200 MYL5□38S561K 350 455 560(504-616) 945 400 50000 30000 720 2800 MYL5□38S621K 380 505 620(558-682) 1025 400 50000 30000 800 2700 MYL5□38S681K 420 560 680(612-748) 1120 400 50000 30000 830 2600 MYL5□38S751K 460 615 750(675-825) 1240 400 50000 30000 850 2430 MYL5□38S821K 510 670 820(738-902) 1355 400 50000 30000 920 2150 MYL5□38S911K 550 745 910(819-1001) 1500 400 50000 30000 960 1900 MYL5□38S102K 625 825 1000(900-1100) 1650 400 50000 30000 1020 1750 MYL5□38S112K 680 895 1100(990-1210) 1815 400 50000 30000 1100 1530 MYL5□38S122K 705 970 1200(1080-1320) 1980 400 50000 30000 1200 1200 Operating Temperature Range: -40 to 85℃
Storage Temperature Range: -40 to 110℃
The company can also produce higher voltage varistors according to customer requirements. Currently, the highest varistor voltage the company can produce is 2700V
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Address: Building 2, 126 Tianyuan Middle Road, Jiangning District, Nanjing
Tel: 025-52153215,52153380、52157721