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TDK TDK Electronics · TDK Europe

Varistors, ceramic transient voltage suppressors

  • SMD varistors suitable for ESD protection and high energy absorption
  • Leaded disk varistors up to +105 °C
  • SNF varistors up to +125 °C
  • Strap and block varistors
  • Intrinsically safe ThermoFuse varistors

Ceramic transient voltage suppressors

  • Suitable for ESD protection and surge current protection
  • Bidirectional clamping
  • Operating temperature up to +150 °C
  • Low leakage current
  • All case sizes available with AgNiSn termination

Leaded round disks, S05 ... S20 series

  • Operating voltage VRMS 11 … 1100 V
  • Operating temperature +105 °C
  • High surge current ratings up to 12 kA
  • High energy ratings (2 ms) up to
    440 J
  • For high energy absorption
Product search

Max. operating voltage (V AC) Surge current (A) Type PDF
11 - 1100 100 - 8000 S05K11 - S20K95 file_pdf_box
14 - 30 250 - 2000 S07K14AUTOS2D1 - S20K30AUTO file_pdf_box
48 250 - 2000 S07V42AUTOS2D1, S10V42AUTOS5D1, S14V42AUTOS5D1, S20V42AUTOS5D1 file_pdf_box
130 - 680 800 - 10000 S05K130E2 - S20K680E2 file_pdf_box

Leaded round disks, S25 series

  • Operating voltage VRMS 130 … 750 V
  • Operating temperature +105 °C
  • High surge current up to 20 kA
  • High energy ratings (2 ms) up to
    1025 J
  • For high energy absorption

Product search

Max. operating voltage (V AC) Surge current (A) Type PDF
130 - 750 20000 S25K130E4R12 - S25K750E4R12 file_pdf_box

Q14, Q20

  • Operating voltage VRMS 130 … 680 V
  • Operating temperature +105 °C
  • Maximum load capacity with minimum component
  • Height miniaturization
  • High surge current rating up to 15 kA
Product search

Max. operating voltage (V AC) Surge current (A) Type PDF
130 - 460 8000, 15000 Q14K130 - Q20K460 file_pdf_box

SNF14, SNF20

  • Surge current ratings up to 12 kA
  • Energy ratings (2 ms) up to 440 J
  • Operating voltage VRMS 130 … 550 V
  • Operation temperature +125 °C
  • IEC 60695-11-5 (needle flame test)
Max. operating voltage (V AC) Surge current (A) Type PDF
130 … 550 V --- B72214X assignment
130 … 550 V --- B72220X assignment
300 - 550 5000, 6000 SNF14K300E2S5, SNF14K420E2S5, SNF14K550E2S5 file_pdf_box