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Metal Oxide Varistors

Metal Oxide Varistors

Power Supply Networks and Electronics Systems with high component densities and low withstand semiconductors, demand an
effective method of over-voltage protection.

What MOV's are and why we use them in surge protection?

An MOV is a bipolar, non linear resistor, with a symmetrical voltage / current
characteristics curve and a resistance value which decreases as the voltage increases.

A semiconducting device which 'clamps' an effective resistance at a specified voltage.

We provide varistors with:

  • High Energy and Current withstand capability.
  • Low clamping Voltage
  • Fast Reponse (typically 5 nanoseconds)
  • Suitable for AC and DC applications
  • Bipolar operation
  • Very low leakage current
  • Relatively inexpensive per Joule

At PDD we offer further Advantages including;-
Customised solutions and a wide range of operation parameters.

Product Range Description Datasheet
  Product Selection Guide Summary vPD1.pdf
B (LOW) Range Low Voltage 5mm Diameter Disc B Range Low Voltage vPD1.pdf
B (MEDIUM) Range Medium Voltage 5mm Diameter Disc B Range Medium Voltage vPD1.pdf
C (LOW) Range Low Voltage 7mm Diameter Disc C Range Low Voltage vPD1.pdf
C (MEDIUM) Range Medium Voltage 7mm Diameter Disc C Range Medium Voltage vPD1.pdf
D( LOW) Range Low Voltage 10.0mm Diameter Disc D Range Low Voltage vPD1.pdf
D (MEDIUM) Range Medium Voltage 10.0mm Diameter Disc D Range Medium Voltage vPD1.pdf
E (LOW) Range Low Voltage 12mm Diameter Disc E Range Low Voltage vPD1.pdf
E (MEDIUM) Range Medium Voltage 12mm Diameter Disc E Range Medium Voltage vPD1.pdf
F (LOW) Range Low Voltage 14mm Diameter Disc F Range Low Voltage vPD1.pdf
F (MEDIUM) Range Medium Voltage 14mm Diameter Disc F Range Medium Voltage vPD1.pdf
G (LOW) Range Low Voltage 20mm Diameter Disc G Range Low Voltage vPD1.pdf
G (MEDIUM) Range Medium Voltage 20mm Diameter Disc G Range Medium Voltage vPD1.pdf
J (MEDIUM) Range Medium Voltage 23mm Diameter Disc J Range Medium Voltage vPD2.pdf
NP & NP2 Range Higher Energy Medium Voltage 32mm Diameter Disc NP Series v2.pdf
LP, LP2 & PS Range Higher Energy Medium Voltage Disc Diameters:
LP - 36mm, PS - 36mm
LP & PS Series v1.pdf
HL,HL2,HP,HPR & HPRL Range Higher Energy Medium Voltage 35mm Diameter Disc H Range vPD1.pdf
X & SM Range Axial Leaded & Surface Mount X & SM Range vPD2.pdf
Packaging Alternative Packaging Suggestions Packaging vPD3.pdf
  Bandoliering Bandoliering vPD2.pdf

 

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