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TDK TDK Electronics · TDK Europe

Varistors

  • SMD varistors suitable for ESD protection and high energy absorption (see Ceramic Transient Voltage Suppressors)
  • Leaded, strap, block and ThermoFuse varistors

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 - 130 2 - 1200 CT0402L14G - CT2220M6G file_pdf_box
4 - 25 1 - 5 CT0402S14AHSG - CT0603V150RFG_E file_pdf_box
4 1 CT0201S4ACC2G, CT0201S4ACC4G, CT0201S4ACC5G file_pdf_box
11 - 40 2 - 1200 CT0402L14G - CT2220S14BAUTOG file_pdf_box
14 - 40 30 - 1200 CT0603K14G_G - CT2220K30G_G file_pdf_box
30 - 130 80 - 6000 CN2220K30E2GK2 - CT2220S50E3G file_pdf_box
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CU varistors

  • Electrical equivalents to leaded types
    S05, S07 and S10
  • SMD plastic package
  • Lead-free soldering
  • UL and CSA approved (pending for CU4948)
  • 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

S05 - S20

  • 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

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

LS40, LS41

  • Operating voltage VRMS: 130 …. 750 V
  • High surge current ratings up to 50 kA
  • High energy ratings (2 ms) up to 1200 J
  • Bent or straight terminals possible
Product search

Max. operating voltage (V AC) Surge current (A) Type PDF
130 - 750 40000 LS40K130QP - LS40K750QPK2 file_pdf_box
130 - 460 50000 LS41K130QP - LS41K460QPK2 file_pdf_box

LS40-E7

  • Operating voltage VRMS: 130 …. 460 V
  • Strap terminals
  • High surge current ratings at 10/350 μs
  • Designed to requirements of IEC 61643-1
  • UL 1449 ed.3
  • IIMP 10/350 μs: 6.5 kA
Product search

Max. operating voltage (V AC) Surge current (A) Type PDF
130 - 750 40000 LS40K130QP - LS40K750QPK2 file_pdf_box

T14, T20, ETFV25

  • Operating voltage VRMS:
    T14: 130 ... 420 V
    T20: 130 ... 1000 V
    ETV25: 115 ... 420 V

  • Disk varistor with integrated thermal disconnector
  • Space saving
  • Monitoring option with 3rd lead
  • UL approval (UL1449)
Product search

Max. operating voltage (V AC) Surge current (A) Type PDF
115 - 420 20000 ETFV25K115E4 - ETFV25K420E4 file_pdf_box
130 - 420 6000 T14K130E2 - T14K420E2 file_pdf_box
130 - 680 10000 T20K130E2 - T20K680E2 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