CU3225K275G2 EPCOS Inc, CU3225K275G2 Datasheet - Page 20

• Manufacturer Part Number: CU3225K275G2
• Description: VARISTOR 275V RMS 3225 SMD
• Manufacturer: EPCOS Inc
• Series: CUr

Specifications of CU3225K275G2

• Varistor Voltage: 430V
• Current-surge: 400A
• Number Of Circuits: 1
• Maximum Ac Volts: 275VAC
• Maximum Dc Volts: 350VDC
• Energy: 8.6J
• Package / Case: Non-Standard SMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 495-2388-2; B72650M 271K 72; B72650M0271K072; B72650M271K072; B72650M271K72

Soldering directions
1
1.1
The nickel barrier layer of the silver/nickel/tin termination prevents leaching of the silver base met-
allization layer. This allows great flexibility in the selection of soldering parameters. The tin pre-
vents the nickel layer from oxidizing and thus ensures better wetting by the solder. The nickel bar-
rier termination is suitable for all commonly-used soldering methods.
Multilayer CTVS: Structure of nickel barrier termination
1.2
Silver-palladium terminations are used for the large case sizes 1812 and 2220 and for chips in-
tended for conductive adhesion. This metallization improves the resistance of large chips to ther-
mal shock.
In case of conductive adhesion, the silver-palladium metallization reduces susceptibility to corro-
sion. Silver-palladium termination can be used for smaller case sizes (only chip) for hybrid appli-
cations as well. The silver-palladium termination is not approved for lead-free soldering.
Multilayer varistor: Structure of silver-palladium termination
Please read Cautions and warnings and
Important notes at the end of this document.
SMD disk varistors (CU varistors)
Standard series
Terminations
Nickel barrier termination
Silver-palladium termination
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