Overvoltage Protection Metal Oxide Varistor ZOV Varistor 05D471K 07D471K 300VAC
Metal Oxide Varistor For Overvoltage Protection ZOV Varistor 05D471K 07D471K 300VAC
The varistor is a resistor whose resistance decreases sharply when an external voltage is applied to a critical value. It is often used as a voltage protection device.
Charateristics
- Small figure, large capacitance and energy
- Exthoyline resine-enveloped
- Response time <25ns
- Using ambient temperature: -40℃~85℃
- Insulation resistance>500M
- Temperature coefficient of varistor voltage: -0.5%/℃
- Chip diameter: 5,7,10, 14,20, 25,32, 40, 53mm
- Allowable tolerance of varistor voltage: K: ±10%
Part Number
| TMRSS01 | - | 1 2 | 3 | 4 5 6 | 7 | 8 | ||
| Produce Code TMRSS01: Metal Oxide Varistors | Disc Diameter: 05=5mm; 07=7mm 10=10mm;14=14mm 20=20mm | Type: D: Disk S: Square | Nominal Varistor Voltage: 180=18V 220=22V … 101=100V 431=430V 182=1800V ... | Tolerance: K=±10% | Packaging:T:tape&reel B:bulk | |||
| - | ||||||||
Specifications
| Type Number | Maximum Allowable Voltage | Varistor Voltage | Maximum Clamping Voltage |
Withstanding Surge Current |
Maximum Energy (10/1000μs) |
Rated Power |
Typical Capacitance (Reference) |
|||||
| Standard | High Surge | Vac(V) | Vdc(V) | V1mA(V) | Ip(A) | Vc(V) | I(A) Standard |
I(A) High Surge |
(J) Standard |
(J) High Surge |
(W) | @1KHz(pf) |
| 05D471K | 05D471KJ | 300 | 385 | 470(423~517) | 5 | 810 | 400 | 800 | 15 | 21 | 0.1 | 55 |
| 07D471K | 07D4710KJ | 300 | 385 | 470(423~517) | 10 | 775 | 1200 | 1750 | 30 | 42 | 0.25 | 105 |
Application
Varistors are mainly used to limit harmful atmospheric overvoltages and operating overvoltages and can effectively protect a system or equipment:
- In the electric power industry, pressure sensitive materials are often used to make arrester valve plates. The high voltage insulator made of zinc oxide pressure sensitive material has not only insulating effect but also transient overvoltage protection.
- In the electronic circuit, it has the functions of overvoltage protection, lightning protection, surge current suppression, peak pulse absorption, amplitude limiting, high voltage arc extinction, noise elimination and semiconductor device protection.
It is mainly used in semiconductor protection, surge protection in home appliances, communication and measuring devices.
Packing Dimensions
| Table 1 | |||
| Symble | Dimensions | ||
| H(max.) | 26.5 | ||
| H1(max.) | 28 | ||
| L(min.) | 20 | ||
| L1(min.) | 15 | ||
| D(max.) | 23 | ||
| D1(±0.8) | 7.5+0.8/10.0+1.0 | ||
| T(max.) | Table 2 | ||
| d(±0.05) | 0.8 | ||
| d1(±0.4) | 1.4 | ||
| Table 2 | |||
| Model | T(max.) | Model | T(max.) |
| 180K | 4.8 | 301K | 5.8 |
| 220K | 4.9 | 331K | 6 |
| 270K | 5 | 361K | 6.2 |
| 330K | 5.2 | 391K | 6.5 |
| 390K | 5.5 | 431K | 6.7 |
| 470K | 5.6 | 471K | 6.9 |
| 560K | 5.7 | 511K | 7 |
| 680K | 5.08 | 561K | 7.2 |
| 820K | 4.9 | 621K | 7.5 |
| 101K | 5.1 | 681K | 8.2 |
| 121K | 5.3 | 751K | 5.3 |
| 151K | 5.6 | 781K | 8.5 |
| 181K | 5 | 821K | 9 |
| 201K | 5.2 | 911K | 9.5 |
| 221K | 5.3 | 102K | 10.1 |
| 241K | 5.4 | 112K | 10.6 |
| 271K | 5.6 | 182K | 13.2 |
| 301K | 5.7 | - | - |
FAQ Of Topmay Capacitor
1) Can I have a free sample to test ?
Yes, we could provide free samples to test and check quality. Freight cost is collected.
2) What is the lead time?
Sample needs about 7~10 working days prepared; mass production average time takes 15-20 working days
3) Do you have any MOQ limit?
Yes. But it depends on product. Normally MOQ is 2K~10Kpcs
4) How about price terms?
We do FOBSHENZHEN if order amount is more than 5000USD. Less than that, it is EXWSHENZHEN and we do not undertake local charge.
5) What information should I let you know if I want to get a quotation?
Basically for capacitor, it requires to know detailed capacitance and voltage. If you have more information, such as type, product photo for reference, you could kindly provide too.
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