VLA553-02R Datasheet, PDF (7/13 Pages) Isahaya Electronics Corporation – Directly mountable on the New‐MPD

Note about collector clamp circuit (2)
The total zener voltage in the collector clamp circuit has the tolerance and fluctuation by temperature
such as the following chart.
Please keep the main circuit so that the DC_Link voltage does not exceed this zener voltage.
Total zener voltage characteristic of VLA553‐01R
1300
1200
Max
1100
1000
900
800
Typ
700
Min
600
500
‐30 ‐10 10 30 50 70 90 110 130 150
Tj (deg C)
Total zener voltage characteristic of VLA553‐02R
1700
1600
Max
1500
1400
1300
1200
Typ
1100
Min
1000
900
‐30 ‐10 10 30 50 70 90 110 130 150
Tj (deg C)
Note about collector clamp circuit (3)
When the collector clamp circuit operates repeatedly, it may be destroyed for heat.
Therefore please keep it to work non‐consecutively.
ISAHAYA ELECTRONICS CORPORATION _{http://www.idc‐com.co.jp 7}