Voltage-limiting with a Z-diode

VP4.1.4.2
Voltage-limiting with a Z-diode
Voltage-limiting with a Z-diode

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Description

The experiment P4.1.4.2 demonstrates how a Z-diode can be used to protect against voltage surges. As long as the applied voltage is below the breakdown voltage UZ of the Z-diode, the Z-diode acts as an insulator and the voltage U is unchanged. At voltages above UZ, the current flowing through the Z-diode is so high that U is limited to UZ.

Components of equipment sets

1 57681  4  Plug-in board safety socket, 20/10 LD
1 57855  4  Zener diode 6.2, STE 2/19 LD
1 57906  4  Lamp holder, E10, top, STE 2/19 LD
1 50508  8  Bulbs, 12 V/3 W, E10, set of 10 LD
1 57742  4  Resistor, 680 Ω, STE 2/19 LD
1 521488 AC/DC power supply 0...12 V/3 A LD
2 531120 Multimeter LDanalog 20 LD
3 500621  4  Safety experiment cable, 50 cm, red LD
3 500622  4  Safety experiment cable, 50 cm, blue LD
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