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Security equipment lightning protection chip varistor
Why does the security monitoring system need lightning protection design? Security monitoring system equipment is divided into two types: outdoor and indoor installation. Equipment installed indoors generally will not be subject to direct lightning strikes, but the damage to the equipment due to overvoltage intrusion needs to be considered; and Outdoor equipment must be protected against direct lightning strikes to prevent lightning voltage from intruding into front-end equipment along the lines. Therefore, appropriate overvoltage protectors should be installed on each line in front of the equipment.
- Commodity name： Security equipment lightning protection chip varistor
- 产品描述
- 产品规格及参数
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Super Series for Automoive (SHA)/ Chip Surge Protection Device (CSPD)
Why does the security monitoring system need lightning protection design? Security monitoring system equipment is divided into two types: outdoor and indoor installation. Equipment installed indoors generally will not be subject to direct lightning strikes, but the damage to the equipment due to overvoltage intrusion needs to be considered; and Outdoor equipment must be protected against direct lightning strikes to prevent lightning voltage from intruding into front-end equipment along the lines. Therefore, appropriate overvoltage protectors should be installed on each line in front of the equipment.
What is CSPD?
CSPD (Chip Surge Protection Device) is a patch-packaged surge voltage protection device. Nanjing Huaju Electronics Co., Ltd. has developed an ultra-high-performance overvoltage suppression device using professional powdering and production technology (with various multinational inventions) To protect electrical equipment, we have specially developed the SHN series of multifunctional surge protectors for RJ45 network Ethernet ports, which use the connection method of the middle tap of the network transformer to suppress surge voltage. SHN itself has a large capacitance that can provide better filtering effect on EMI noise. At the same time, SHN provides "ultra-small size SMD chip" packaging, and has "extremely low suppression voltage" and "fast response speed". Compared with the current The use of discharge tubes (GDT) on the market has always had the "disadvantages" of "high suppression voltage" and "slow response speed". SHN's excellent electrical properties can avoid these shortcomings and can withstand 10x700 μs / 6KV multiple times. surge voltage impact.
Advantages of CSPD(SHN):
1. SMD package (1206 & 1210)
2. The working voltage is specially designed for the network port
3. Inhibit voltage lower than (25V)
4. Extremely low leakage current (< 1 μA)
5. The response speed is faster than the discharge tube (GDT) (< 1 ns)
6. High nonlinearity index α reaches (above 25)
7. Passed (10x700 μs/ 40 ohm) surge voltage 6KV test 8. Good impact capability more than 30 times
9. Comply with RoHS requirements and lead-free solder furnace process
10. Non-polar two-way action
11.Extremely wide operating temperature (-55°C ~ + 125°C)
12. When applied to power supply end protection, it can avoid the problem of discharge tube flameout and follow-up flow.
13. Space saving and competitive price
3. Model name, appearance structure and dimensions:
Recommended application part number:
Part No size Application voltage Breakdown voltage Inhibition voltage Application scope surge current V V V 10X700us SCSPD1206P120-6 1206 DC 3.3V 12 <25V Ethernet port 6KV SCSPD1206P120-4 1206 DC 3.3V 12 <25V Ethernet port 4KV SCSPD1210P470-6 1210 AC 24V 47 <75V Ethernet port 6KV SCSPD1210P470-4 1210 AC 24V 47 <75V Ethernet port 4KV SCSPD1210P750-6 1210 DC 57V 75 <100V Ethernet port 6KV SCSPD1210P750-4 1210 DC 57V 7 <100V Ethernet port 4KV Comparison between SCSPD and discharge tube (GTD)
Main manufacturer specifications:
Feature comparison SCSPD Discharge tube (GTD) Product Size 1206,1210 Φ5x5.6 1206 1812 Minimum breakdown voltage 12V 75V 200V 75V Minimum suppression voltage <25V >300V >500V >300V surge voltage 6KV 6KV 4KV 4KV reaction speed <1ns >500ns >100ns >100ns The problem of flameout and continuous flow No Yes Yes Yes The security monitoring system mainly includes the front-end part, transmission part, control part, anti-theft alarm part, and system power supply part. The recommended material numbers are listed as follows:
Key words:
Security equipment lightning protection chip varistor
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