CU4032K250G2 EPCOS Inc, CU4032K250G2 Datasheet - Page 27

• Manufacturer Part Number: CU4032K250G2
• Description: VARISTOR STD 250VRMS 4032 SMD
• Manufacturer: EPCOS Inc
• Series: CUr

Specifications of CU4032K250G2

• Varistor Voltage: 390V
• Current-surge: 1.2kA
• Number Of Circuits: 1
• Maximum Ac Volts: 250VAC
• Maximum Dc Volts: 320VDC
• Energy: 19J
• Package / Case: Non-Standard SMD
• Technology: Metal Oxide
• Capacitance Value: 105pF
• Clamping Current: 10A
• Clamping Voltage: 650V
• Ac Voltage Rating (max): 250VAC
• Dc Voltage Rating (max): 320VDC
• Operating Temp Range: -40C to 85C
• Mounting: Surface Mount
• Surge Current (max): 1200A
• Size Code: 4032
• Product Length (mm): 10.2mm
• Product Depth (mm): 8mm
• Product Height (mm): 4.5mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: B72660M 251K 72; B72660M0251K072; B72660M251K72

Note:
Leaching of the termination
Effective area at the termination might be lost if the soldering temperature and/or immersion time
are not kept within the recommended conditions. Leaching of the outer electrode should not ex-
ceed 25% of the chip end area (full length of the edge A-B-C-D) and 25% of the length A-B,
shown below as mounted on substrate.
As a single chip
7
7.1
7.2
Manual soldering with a soldering iron must be avoided, hot-air methods are recommended for
rework purposes.
7.3
All environmentally compatible agents are suitable for cleaning. Select the appropriate cleaning
solution according to the type of flux used. The temperature difference between the components
and cleaning liquid must not be greater than 100 C. Ultrasonic cleaning should be carried out
with the utmost caution. Too high ultrasonic power can impair the adhesive strength of the metal-
lized surfaces.
7.4
An excessive application of solder paste results in too high a solder fillet, thus making the chip
more susceptible to mechanical and thermal stress. Too little solder paste reduces the adhesive
strength on the outer electrodes and thus weakens the bonding to the PCB. The solder should be
applied smoothly to the end surface.
Please read Cautions and warnings and
Important notes at the end of this document.
SMD disk varistors (CU varistors)
Standard series
According to JEDEC J-STD-020D. Please refer to chapter 2.
Notes for proper soldering
Preheating and cooling
Repair / rework
Cleaning
Solder paste printing (reflow soldering)
Page 27 of 35
As mounted on substrate