OVERVIEW SURGE VOLTAGE SUPPRESSORS34
Device families grouped by breakdown-voltage class and disc diameter
UBR (25 mA, 25 °C) |
30 mm disc |
100 – 2000 V |
DAS 233-400 |
200 – 3000 V |
DAS 343-400 |
300 – 3800 V |
DAS 443-400 |
Example order code
- Symmetrical surge-voltage suppressor (prefix “DAS”)
- Design version
- Peak dissipation rating PRSM, kW
- Voltage code (e.g. 30 → 3000 V breakdown class)
SURGE VOLTAGE SUPPRESSORS — ELECTRICAL PARAMETERS34
Type |
UBR (25 mA, 25 °C) V range |
PRSM (10 µs, 25 °C) kW |
IRM mA |
Temp-coefficient of UBR % / °C |
Asym-mismatch of UBR % |
F (8/20 µs) kW |
RthJC °C/W |
Tjmax °C |
Fig. |
DAS 233-400 |
100 – 2000 |
4 |
5 |
0.15 |
7 |
8 × 10 |
0.05 |
140 |
5 |
DAS 343-400 |
200 – 3000 |
4 |
5 |
0.15 |
7 |
8 × 10 |
0.05 |
140 |
12 |
DAS 443-400 |
300 – 3800 |
5 |
7 |
0.15 |
7 |
8 × 10 |
0.05 |
140 |
7 |