B72650M171K72 EPCOS Inc, B72650M171K72 Datasheet - Page 20

• Manufacturer Part Number: B72650M171K72
• Description: Varistors 175V 400A 75pF Varistor
• Manufacturer: EPCOS Inc
• Series: B726r

Specifications of B72650M171K72

• Voltage Rating Dc: 225 V
• Voltage Rating Ac: 175 V
• Peak Surge Current: 400 A
• Surge Energy Rating: 5.6 J
• Operating Temperature Range: - 40 C to + 85 C
• Mounting: SMD/SMT
• Termination Style: SMD/SMT
• Varistor Voltage: 175 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: B72650M0171K072

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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