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EPCOS B72207S251K101

EPCOS - B72207S251K101 - Varistor,  Circuit Protection; 250Vrms; 650V; 1200A; Metal Oxide; 105pF; Wire; 0.25W View larger image View larger image
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EPCOS Varistor, Circuit Protection; 250Vrms; 650V; 1200A; Metal Oxide; 105pF; Wire; 0.25W
Mfr. Part#:

Allied Stock#: 70102395

 RoHS Compliant Part



View B72207S251K101 Datasheet Datasheet

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  • Non Cancelable Non Returnable (NCNR) part. Please see Terms of NCNR.
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$0.095 (Each)

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Minimum Quantity: 5000 |  Multiples Of: 5000


Brand/Series: Standard Series
Capacitance: 105 pF
Clamping Voltage: 650 V
Current, Peak: 1200 A
Current, Surge: 1200 A
Dimensions: 9.0mm (Ma x .) Dia. x 4.2mm (Ma x .) W x 11.0mm (Ma x .) H
Energy Rating: 19 Joules
Insulation Resistance: ≥10 Megohms (Min.)
Mounting Style: Through Hole
Package: Leads
Package Type: Leads
Power Rating: 0.25 W
Resistance, Insulation: ≥10 Megohms (Min.)
Technology: Metal Oxide
Temperature, Operating, Maximum: 85 °C
Temperature, Operating, Minimum: -40 °C
Terminal Type: Tinned Copper
Type: MOV
Voltage, AC: 250 VAC
Voltage, DC: 320 VDC
Voltage, Operating: 250 Vrms @ +85 °C, 320 VDC @ +85 °C
Voltage, Varistor: 390 V


Applications requiring protection at operating voltage levels as low as 11 volts and as high as 1100 volts with energies rated up to 15000 joules, depending on the device selected.

Typical Protection Applications:
  • Protection of Semiconductors (Diodes, Transistors, Thyristors, ICs, Etc.)
  • Appliances Connected to 110 V or 220 VAC
  • Industrial Equipment Vulnerable to Transients on the AC Power Line (Computers, Traffic Controls, Motor Controllers, Etc.)
  • Protection of Equipment Connected to Telephone or Signal Lines, Such as Security Systems, Railroad Equipment, Fire Alarm Systems, Etc.
  • Arc Suppression Across Relay and Switch Contacts
  • Power Control Equipment for Power Distribution Lines
  • GFI (Ground Fault Interrupters)

  • Nanosecond Switching Response Time, <15 ns, with Minimal Lead Length
  • High Transient Current Capability (Up to 100,000 Amps)
  • No Extinguishing or Follow-On Current Limitations
  • Compatible with Automatic Insertion; Tape and Reel Configuration Available on S05, S07, S10 and S14 Series

  • Eliminates Dangerous Voltage Transients
  • Lowers Overall System Costs by Reducing Downtime and Maintenance Costs
  • Improves Component and System Reliability
  • Reduces EMP/RFI Interference