B72660M250K72 EPCOS Inc, B72660M250K72 Datasheet - Page 24

• Manufacturer Part Number: B72660M250K72
• Manufacturer: EPCOS Inc

Specifications of B72660M250K72

• Technology: Metal Oxide
• Capacitance Value: 1400pF
• Clamping Current: 2.5A
• Clamping Voltage: 77V
• Ac Voltage Rating (max): 25VAC
• Dc Voltage Rating (max): 31VDC
• Operating Temp Range: -40C to 85C
• Mounting: Surface Mount
• Surge Current (max): 250A
• Size Code: 4032
• Product Length (mm): 10.2mm
• Product Depth (mm): 8mm
• Product Height (mm): 3.2mm
• Varistor Voltage: 39V
• Lead Free Status / RoHS Status: Compliant

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.
SMD disk varistors (CU varistors)
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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