White Round Button Shape Max Limit Voltage 460V 07D 471K 7D471K SMD Disk Metal Oxide Surface Mount Varistor For LED Ligh
White Round Button Shape Max Limit Voltage 460V 07D 471K 7D471K SMD Disk Metal Oxide Surface Mount Varistor For LED Lighting
Description of SMD Disk Metal Oxide Surface Mount Varistor
SMD Disk Varistor series is a product specially developed for surface mounting. Because of its good heat dissipation, it has the advantages of other types of SMD products, and also has high combined wave resistance, high working voltage capability, low residual voltage, and insulation High voltage, BSMD series are not prone to oxygen.
Apperance and Pad size of Button Shape Metal Oxide Vasristor
| Spec | Dmax | H | Tmax |
Pad centre distance C
|
Pad A | Pad B | |
| Φa | b1 | b2 | |||||
| 07D271K | 7.8 | 11.1 | 3.5 | 6.75 | 3.3 | 3.8 | 2.5 |
| 07D471K | |||||||
| 07D511K | |||||||
| 07D561K | |||||||
| 10D271K | 11.5 | 14.2 | 3.5 | 8.25 | 4.0 | 4.0 | 2.5 |
| 10D471K | |||||||
| 10D511K | |||||||
| 10D561K |
Structure and Materials of Button Shape Surface Mount Metal Oxide Varistor
| NO | Components | Name |
| 1 | Varistor Chip | Zinc oxide ceramics |
| 2 | Electrode | Silver paste |
| 3 | Lead wire | Tinned metal bracket |
| 4 | Solder material | Lead-free solder |
| 5 | Coating | Lightning protection glaze/epoxy resin |
| 6 | Moisture barrier | Epoxy Resin |
Main Electrical Properties of 07D 471K 7D471K SMD Disk Metal Oxide Surface Mount Varistor
| P/N | Varistor Voltage V 1mA (V) | Max Continuous Working Voltage | Max limit voltage (8/20us) | Max flow energy (8/20us) 40time (A) | Max Static power (W) | Energy (J) | Typical Capacitance (Ref.) @1KHZ(pF) | |||
| AC (Vrms) | DC (V) | Vc (V) | IP (A) | 2ms | 10/1000μs | |||||
| 07D271K | 270士10% | 175 | 225 | 460 | 10 | 1000 (@2KV) | 0.25 | 12.6 | 24 | 170 |
| 07D471K | 470土10% | 300 | 385 | 780 | 26.8 | 42 | 100 | |||
| 07D511K | 510士10% | 320 | 418 | 840 | 28.0 | 45 | 90 | |||
| 07D561K | 560土10% | 350 | 460 | 925 | 28.0 | 45 | 90 | |||
| 10D271K | 270士10% | 175 | 225 | 460 | 25 | 2000 (@4KV) | 0.40 | 30 | 49 | 350 |
| 10D471K | 470士10% | 300 | 385 | 780 | 52 | 85 | 230 | |||
| 10D511K | 510士10% | 320 | 418 | 840 | 52 | 92 | 210 | |||
| 10D561K | 560士10% | 350 | 460 | 925 | 52 | 92 | 190 | |||
Features Of SMD Disk Metal Oxide Surface Mount Varistor For LED Lighting
1) Suitable for reflow soldering with surface mounting technology, and the metal pins will not drop out;
2) High anti-combined wave ability, and the impact time interval can be shortened to 10 seconds;
3) High working voltage, which is more than 30V higher than other types of varistor working voltage;
4) Low residual voltage;
5) High insulation voltage and good resistance to hot flashes;
6) The structure is small and exquisite, the top is high and low;
7) Small inductance structure with fast response;
8) High working temperature: -40℃~+125℃.
Application Of SMD Disk Metal Oxide Surface Mount Varistor For LED Lighting
● LED lights;
● Power supply: switching power supply;
● Communication equipment
● Household appliances;
● Industrial equipment;
● Street LED light
Package Of SMD Disk Metal Oxide Surface Mount Varistor For LED Lighting
Reflow Soldering Curve Of SMD Disk Metal Oxide Surface Mount Varistor For LED Lighting
SMD varistor is soldered with lead-free solder, and the silver side of the chip is used as one of the soldering surfaces. Therefore, the above reflow soldering curve is recommended for soldering. If the above conditions (265 ℃/20S-40S, in and out time 8~10 minutes) are exceeded, soldering , Please pay attention to the problem of tin melting and the virtual silver electrode on the bonding surface.
Contact Details:
Andy Wu
Email: andy@tianrui-fuse.com.cn
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