V251CA32 Littelfuse Inc, V251CA32 Datasheet - Page 5

• Manufacturer Part Number: V251CA32
• Description: VARISTOR DISC 250V 330J 32MM CA
• Manufacturer: Littelfuse Inc
• Series: CAr

Specifications of V251CA32

• Varistor Voltage: 390V
• Current-surge: 20kA
• Number Of Circuits: 1
• Maximum Ac Volts: 250VAC
• Maximum Dc Volts: 330VDC
• Energy: 330J
• Package / Case: Disc 32mm
• Product: MOV
• Voltage Rating Dc: 330 V
• Voltage Rating Ac: 250 V
• Clamping Voltage: 680 V
• Peak Surge Current: 20 KA
• Capacitance: 2500 pF
• Operating Temperature Range: - 55 C to + 85 C
• Mounting: SMD/SMT
• Dimensions: 32 mm Dia.
• Termination Style: Solder
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/ca.html for current information.
Passivation Layer
The standard CA Series is supplied with passivation
layer around the outside perimeter of the disc forming
an electrical insulator as detailed in the dimensional
drawing. For other options contact factory. (See Ordering
Information)
Encapsulated Recommendations
After lead attachment, the disc/lead assembly may be
coated or encapsulated in a package to provide electrical
insulation and isolation from environmental contamination
as required by the application. Coating/Filler materials for
containers may include silicones, polyurethanes, and some
epoxy resins. Materials containing halogens, sulfides, or
alkalines are not recommended.
Stacking and Contact Pressure Recommendations
When applications require the stacking of CA60 discs,
or when an electrical connection is made by pressure
contacts, the pressure applied to the CA60 disc electrode
surface should be minimum 2.2kgs (5 pounds) and
maximum
Part Numbering System
SERIES DESIGNATOR
DISC SIZE (mm) DIAMETER
MAX AC
(FIRST SIGNIFICANT DIGITS) V
VARISTOR DESIGNATOR
V
M(AC)
VOLTAGE DECADE MULTIPLIER
RMS
4N/CM
WORKING VOLTAGE
2
(5.7LBs/IN
M(AC)
2
).
V 25 1 CA 60
Varistor Products
High Energy Industrial Disc Varistors > CA Series
Revision: September 3, 2009
181
Electrode Metallization
CA60 discs are supplied as standard with sintered Silver
electrodes. For other available options please contact
Littelfuse.
Recommended Reflow Temperature Profile
Packaging and Shipping
The CA Series is supplied in bulk for shipment. Discs are
scratching or edge-chipping during shipment.
No branding or any other type of marking appears on the
CA disc itself.
CA60 discs are supplied as standard with sintered Silver
electrodes and glass passivation. For other available
options please contact factory.
250
200
150
100
50
0
0
100
200
300
TIME (SEC)
400
500
600
700
800
CA Varistor Series
900