Littelfuse CA Varistor Series Manual do Utilizador descarregar pdf (Página 1)

181

Revised: May 8, 2013

Varistor Products

CA Varistor Series

High Energy Industrial Disc Varistors > CA Series

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/ca.html for current information.

HI–ENERGY

MOV’S

CA Series

CA Varistor Series

Description

The CA Series of transient surge suppressors are industrial

high-energy disc varistors (MOVs) intended for special

applications requiring unique electrical contact or packaging

methods provided by the customer. The electrode ﬁnish

of these devices is solderable and can also be used with

pressure contacts. Discs of the same diameter may be

stacked.

This series of industrial disc varistors are nominal 60mm

diameter, with disc thickness ranging from 2.7mm to

32mm. The voltage range is 250V to 2800 V

(AC)RMS

For information on soldering considerations, refer to EC637

"Recommendations for Soldering Terminal Leads to MOV

Varistor Discs."

Features

• Standard disc size

nominal 60mm

diameter

• Discs have edge

passivation insulation

• High peak pulse

current range

50000A to 70000A

• Very high–energy

capability W

880J to 10000J

Absolute Maximum Ratings

CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation

of the device at these or any other conditions above those indicated in the operational sections of this speciﬁcation is not implied.

Continuous CA Series Units

Steady State Applied Voltage:

AC Voltage Range (V

M(AC)RMS

) 250 to 2800 V

DC Voltage Range (V

M(DC)

) 330 to 3500 V

Transient:

Peak Pulse Current (I

)

For 8/20μs Current Wave(See Figure 2) 20,000 to 70,000 A

Single-Pulse Energy Range

For 2ms Current Square Wave (W

) 880 to 10,000 J

Operating Ambient Temperature Range (T

) -55 to +85 °C

Storage Temperature Range (T

STG

) - 55 to +85 °C

Temperature Coefficient (V) of Clamping Voltage (V

) at Specified Test Current <0.01 %/°C

• For ratings of individual members of a series, see Device Ratings and Speciﬁcations chart

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Página 1 - CA Varistor Series

Página 2

Página 3 - CA Series

Página 4 - Product Dimensions (mm)

Página 5

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