SDH4-145
| keyword | 2-pole SMD DC discharge start voltage 145V |
|---|---|
| Product Info | Product name: SDH4-145 Product code: 11028273 |
This is a surface-mount type element that has higher resistance than the conventional SD4 type.
Main applications
- Various electronic devices
- Communication line protection
- Switchboard
- PBX
- Telephone
- FAX
The same external shape as the standard SD4 series and common board land pattern.
Therefore, there is no need to redesign when switching to this product.
- Ultra small size and large current resistance
- Low capacitance (less than 0.5pF)
- Broadband compatible
- Excellent heat and mechanical shock due to the use of ceramic envelope
- Repetitive surge current resistance and Excellent temperature environment characteristics
- Embodiment taping is suitable for surface mounting
Dimensions / Recommended land pattern (Unit: mm)
Specification
| Item | Measurement condition | Performance |
| DC discharge start voltage | 100 V / s | 145 V ± 20% |
| Impulse discharge start voltage | 100V / μs | 500 V or less |
| Impulse discharge start voltage | 1 kV / μs | 600 V or less |
| Insulation resistance | DC 50 V | 10000 MΩ or more |
| Capacitance | 1 MHz | 0.5 pF or less |
| DC holdover voltage | ITU-T K. 12 Table 3 Test 1 52 V, 260 Ω |
150 ms or less |
| Impulse current capacity | 8/20 μs, 5000 A | +5 times, -5 times |
| AC current tolerance | 50 Hz, 5 A, 1 s | 10 times |
| Impulse life | 10/1000 μs, 100A | 300 times |
| mass | - | 0.3 g |