This document describes the features and characteristics of the DSS series DC spark-over devices, as well as the technical parameters and packaging forms of different models. These devices are mainly used for surge protection in telephone lines and communication circuits.
The DSS series offers surge protection for telephone lines (telephone, modem, facsimile, etc.) and for telecommunication lines such as computer connections. Several models are UL‑approved and meet standards like UL 1414, UL 1449 and UL 1459.
Technical data include spark‑over voltage ratings from 200 V to 600 V, high insulation resistance, low capacitance (≤1 pF) and surge current capabilities up to 500 A. The devices are supplied in various packaging forms (axial tape, reel, bulk) and are suitable for a wide range of applications including power supplies, TV tuners, antenna circuits and industrial equipment.
| Surge voltage rating (DSS‑201M) | 200 V (160‑240 V) |
|---|---|
| Surge voltage rating (DSS‑301L) | 300 V (255‑345 V) |
| Capacitance (typical) | ≤1 pF |
| Insulation resistance | ≥10 MΩ·min |
It protects telephone lines (telephone, modem, facsimile, etc.) and telecommunication lines such as computer connections.
The DSS‑301L model has a capacitance of 1 pF maximum.