CN2220K25G EPCOS Inc, CN2220K25G Datasheet - Page 70

• Manufacturer Part Number: CN2220K25G
• Description: VARISTOR 25VRMS 2220 SMD
• Manufacturer: EPCOS Inc
• Series: CN Standardr

Specifications of CN2220K25G

• Varistor Voltage: 39V
• Current-surge: 1.2kA
• Number Of Circuits: 1
• Maximum Ac Volts: 25VAC
• Maximum Dc Volts: 31VDC
• Energy: 12J
• Package / Case: 2220 (5750 Metric)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: B72540V 250K 62; B72540V0250K062; B72540V250K62

3.5
All EPCOS CU types with tinned termination are approved for lead-free and SnPb soldering.
3.6
All EPCOS SHCV types with tinned termination are approved for lead-free and SnPb soldering.
4
4.1
If the meniscus height is too low, that means the solder quantity is too low, the solder joint may
break, i.e. the component becomes detached from the joint. This problem is sometimes interpret-
ed as leaching of the external terminations.
If the solder meniscus is too high, i.e. the solder quantity is too large, the vise effect may occur.
As the solder cools down, the solder contracts in the direction of the component. If there is too
much solder on the component, it has no leeway to evade the stress and may break, as in a vise.
The figures below show good and poor solder joints for dual-wave and infrared soldering.
4.1.1
Good and poor solder joints caused by amount of solder in dual-wave soldering.
4.1.2
Please read Cautions and warnings and
Important notes at the end of this document.
Multilayer varistors (MLVs)
Standard series
Tinned copper alloy
Tinned iron wire
Solder joint profiles / solder quantity
Nickel barrier termination
Solder joint profiles for nickel barrier termination - dual-wave soldering
Solder joint profiles for nickel barrier termination / silver-palladium / silver-platinum
termination - reflow soldering
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