U-4B
| keyword | 2 poles with lead wire, DC discharge start voltage 230V |
|---|---|
| Product Info | Product name: U-4B (UL) Item code: 11008111 |
Mounted between the neutral line and ground of the communication circuit board and power supply circuit of the 2-pole arrester (GDT) communication device, and used to protect the device from induced voltage and TOV (temporary overvoltage) induced in the line to do.
Main applications
- various electronic devices and protection of communication lines
- switch
- PBX
- telephone
- FAX
- AC power
- Inverter
・ Small size and high current resistance
・ Low capacitance
・ Broadband compatible
・ Excellent heat and mechanical shock due to use of ceramic envelope
・ Excellent current resistance and temperature environment characteristics of repeated surge
Dimensions (Unit: mm)
Specification
| item | conditions | Performance |
| DC discharge start voltage | 100 V / s | 230 V ± 15% |
| Impulse discharge start voltage | 100 V / μs | 600 V or less |
| Impulse discharge start voltage | 10 kV / μs | 900 V or less |
| Insulation resistance | DC 100 V | 10000 MΩ or more |
| Capacitance | 1 MHz | 1.0 pF or less |
| DC holdover voltage | Voltage 135 V, current 200 mA | 150 ms or less |
| Alternating current | Voltage 100 V, current 80 A, 50 Hz | 1/2 cycle or less |
| Impulse life | 10/1000 μs, 500 A | 300 times |
| Impulse current capacity | 8/20 μs, 5 kA | 10 times |
| Impulse current capacity | 8/20 μs, 10 kA | Once |
| AC current tolerance | 10 A, 1 s, 50 Hz | 5 times |
| AC current tolerance | 65 A, 9 cycle, 50 Hz | Once |
| mass | - | 1.5 g |
Notes on use
When using this product for AC power, be sure to use it together with a varistor.
If the arrester is used alone, a follow current may occur.
We also have AV series (2 poles) and AV3P series (3 poles) with arresters and varistors integrated.