3SDH4-145
| keyword | 3-pole SMD |
|---|---|
| Product Info | Product name: 3SDH4-145 Item code: 11042588 |
It is mounted on the internal circuit of communication equipment, etc., and is used for the purpose of protecting the equipment from the induced voltage induced on the communication line and signal line.
This is a surface-mount type element that has higher resistance than the conventional 3SD4 type.
Main applications
- protection of various electronic devices
- communication lines
- switches
- PBXs
- telephones
- fax machines
The same outline as the conventional 3SD4 series, and a 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 ceramic envelope
・ Repetitive surge current resistance and Excellent temperature environment characteristics
・ Embodiment taping is suitable for surface mounting
Dimensions (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 | 1.0 pF or less |
| DC holdover voltage | ITU-T K. 12 Table 4 Test 2 80 V, 330 Ω |
150 ms or less |
| Impulse current capacity | 8/20 μs, 5000 A × 2 | +5 times, -5 times |
| AC current tolerance | 50 Hz, 5 A × 2, 1 s | 10 times |
| Impulse life | 10/1000 μs, 100A × 2 | 300 times |
| mass | - | 0.6 g |