V250LA40B

Operating Temperature Range : - 55 C to + 85 C
Packaging : Bulk
Voltage Rating AC : 250 V
Product : MOV
Mounting : Radial
Diameter : 20 mm
Capacitance : 1000 pF
Surge Energy Rating : 130 J
Peak Surge Current : 6.5 KA
Clamping Voltage : 620 V
Voltage Rating DC : 330 V


Features:

• Energy Absorption Capability (W_TM) . . .. . . . . . . . . . . . . . . . . Up to 360J
• Wide Operating Voltage Range
   VM(AC)RMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130V to 1000V
• No Derating Up to 85 Ambient
• Available in Tape and Reel or Bulk Pack


Specifications

Continuous:
Steady State Applied Voltage:
AC Voltage Range (V_M(AC)RMS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . 130 to 1000 V
DC Voltage Range (V_M(DC) ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175 to 1200 V
Transients:
Peak Pulse Current (I_TM)
For 8/20s Current Wave (See Figure 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . 1200 to 6500 A
Single Pulse Energy Range
For 10/1000s Current Wave (W_TM ) . . . . . . . . . . . . . . . . . . . . . . . . ...... . . . . . . . . . . . . . . . . . 11 to 360 J
Operating Ambient Temperature Range (T_A) . . . . . . . . . . . . . . . . . . . ...... . . . . . . . . . . . . . . . . -55 to 85 0C
Storage Temperature Range (T_STG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..... . . . . -55 to 125 0C
Temperature Coefficient (V) of Clamping Voltage (V_C) at Specified Test Current . .. . ..... . . . . <0.01 %/0C
Hi-Pot Encapsulation (Isolation Voltage Capability) . . . . . . . . . . . . . . . . . . . . . . . . ........ . ..... . . . . . 2500 V
(Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301)
Insulation Resistance ...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . ..... . . . . . . 1000 M

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.

Description

The V250LA40B Series of transient voltage surge suppressors are radial-lead varistors (MOVs) that are designed to be operated continuously across AC power lines. These UL recognized varistors require very little mounting space, and are offered in various standard lead form options.

The V250LA40B Series varistors are available in four model sizes: 7mm, 10mm, 14mm and 20mm; and have a V_M(AC)RMS voltage range from 130V to 1000V, and an energy absorption capability up to 360J. Some V250LA40B series model numbers are available with clamping voltage selections, designated by a model number suffix of either A or B. The "A" selection is the standard model; the "B" selection provides a lower clamping voltage.

See V250LA40B Series Device Ratings and Specifications table for part number and brand information.

Parameters:

Technical/Catalog Information	V250LA40B
Vendor	Littelfuse Inc
Category	Circuit Protection
Maximum AC Volts	250Vrms
Maximum DC Volts	330VDC
Current-Surge	6.5kA
Package / Case	Disc 20mm
Varistor Voltage	429V
Energy	130J
Number of Circuits	1 - Single
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	V250LA40B V250LA40B