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

SMD varistors

  • Bidirectional protection
  • Low leakage current
  • Lead free
  • ESD protection: up to 30kV
  • Reliable ESD protection up to 15 kV air discharge acc. to IEC 000-4-2, level 4
  • ESD protection
  • Case size: 0201, 0402, 0603
  • High surge voltage capability up to 2 kV for 10/700 μs acc. to IEC 61000-4-5
  • UL approval to UL1449
  • ESD and surge current protection
  • Case size: 0805, 1206, 1210, 1812, 2220
Product search

Max. operating voltage (V AC) Surge current (A) Type PDF
4 1 CT0201S4ACC2G, CT0201S4ACC4G, CT0201S4ACC5G file_pdf_box
4 - 25 1 - 5 CT0402S14AHSG - CT0603V150RFG_E file_pdf_box
4 - 130 2 - 1200 CT0402L14G - CT2220M6G file_pdf_box
11 - 40 5 - 1200 CT0402L14G - CT2220S14BAUTOG file_pdf_box
14 - 40 30 - 1200 CT0603K14G_G - CT2220K30G_G file_pdf_box
14 120 - 400 CT0805S14BAUTOGOM_G, CT1206S14BAUTOGOM_G, CT1210S14BAUTOGOM_G file_pdf_box
17 2000 CT1210K17E2G file_pdf_box
25 1500 CT1210K25E2G file_pdf_box
30 - 130 80 - 6000 CN2220K30E2GK2 - CT2220S50E3G file_pdf_box
40 1000 CT1210K40E2G file_pdf_box
45 1500 CT1210K45E2GU file_pdf_box
50 1200 CT1210K50E2GU file_pdf_box
50 3000 CT1812K50E2GU file_pdf_box
60 1200 CT1210K60E2GU file_pdf_box
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SMD disk varistors (CU)

  • Electrically equivalent to leaded types S05, S07 and S10
  • SMD plastic package
  • Lead-free soldering
  • UL and CSA approved (pending for CU4948)
  • Operating voltage VRMS: 14 … 300 V
  • Max. energy absorption:
    65000 mJ (2 ms)
  • Max. power dissipation: 400 mW

Product search

Max. operating voltage (V AC) Surge current (A) Type PDF
11 - 300 100 - 1200 CU3225K115G2 - CU4032K95G2 file_pdf_box
14 - 30 100, 250 CU3225K14AUTOG2 - CU4032K30AUTOG2 file_pdf_box

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)
Product search

Max. operating voltage (V AC) Surge current (A) Type PDF
275 - 550 5000 - 10000 SNF14K300E2S5, SNF14K420E2S5, SNF14K550E2S5, SNF20K275E2S5, SNF20K385E2S5 file_pdf_box

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