B40K250 EPCOS Inc, B40K250 Datasheet - Page 19

• Manufacturer Part Number: B40K250
• Description: VARISTOR BLOCK 250VRMS 40MM
• Manufacturer: EPCOS Inc
• Series: HighEr

Specifications of B40K250

• Varistor Voltage: 390V
• Current-surge: 40kA
• Number Of Circuits: 1
• Maximum Ac Volts: 250VAC
• Maximum Dc Volts: 320VDC
• Energy: 490J
• Package / Case: Chassis Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: B72240B 251K 1; B72240B0251K001; B72240B251K1

Mounting
1. Potting, sealing or adhesive compounds can produce chemical reactions in the SIOV ceramic
2. Overloading SIOVs may result in ruptured packages and expulsion of hot materials. For this rea-
Operation
1. Use SIOVs only within the specified temperature operating range.
2. Use SIOVs only within the specified voltage and current ranges.
3. Environmental conditions must not harm SIOVs. Use SIOVs only in normal atmospheric condi-
Please read Cautions and warnings and
Important notes at the end of this document.
Block varistors
HighE series
that will degrade the component’s electrical characteristics.
son SIOVs should be physically shielded from adjacent components.
tions. Avoid use in the presence of deoxidizing gases (chlorine gas, hydrogen sulfide gas,
ammonia gas, sulfuric acid gas, etc), corrosive agents, humid or salty conditions. Avoid contact
with any liquids and solvents.
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11/07