LITTELFUSE V660LA100B, V660LA50A, V660LA10, V625LA80B, V625LA40A Datasheet

LA Varistor Series

Varistor Products

50

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Line Voltage Operation, Radial Lead

The LA 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 LA 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 LA
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 LA Series Device Ratings and Specifications table for part number
and brand information.

Features

• Energy Absorption Capability (WTM) ....................Up to 360J

• Wide Operating Voltage Range

V

M(AC)RMS

.....................................130V to 1000V

• No Derating Up to 85oC Ambient

• Available in Tape and Reel or Bulk Pack

AGENCY APPROVALS: Recognized under the components program of

Underwriters Laboratories. Certified by CSA, VDE and CECC.

AGENCY FILE NUMBERS: UL E75961, E56529, E135010; CSA

LR91788; VDE 116895E; CECC 42201-006.

ALSO SEE LITTELFUSE ULTRAMOV

™

AND C-III VARISTOR SERIES

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V

DE

®

®

2

VARISTOR

PRODUCTS

LA Varistor Series

Varistor Products

Line Voltage Operation, Radial Lead

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Absolute Maximum Ratings

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

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 (ITM)

For 8/20µs Current Wave (See Figure 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1200 to 6500 A

Single Pulse Energy Range

For 10/1000µs Current Wave (WTM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 to 360 J

Operating Ambient Temperature Range (TA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 85

0

C

Storage Temperature Range (T

STG

) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 125

0

C

Temperature Coefficient (αV) of Clamping Voltage (VC) 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 MΩ

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.

Device Ratings and Specifications

LA SERIES UNITS

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MAXIMUM RATING (85

CONTINUOUS TRANSIENT

MODEL

SIZE

PA RT

NUMBER

V130LA1 7 1301 130 175 11 1200 184 255 390 10 180

V130LA2 7 1302 130 175 11 1200 184 228 340 10 180

V130LA5 10 1305 130 175 20 2500 184 228 340 25 450

V130LA10A 14 130L10 130 175 38 4500 184 228 340 50 1000

V130LA20A 20 130L20 130 175 70 6500 184 228 340 100 1900

V130LA20B 20 130L20B 130 175 70 6500 184 220 325 100 1900

V140LA2 7 1402 140 180 12 1200 198 242 360 10 160

V140LA5 10 1405 140 180 22 2500 198 242 360 25 400

V140LA10A 14 140L10 140 180 42 4500 198 242 360 50 900

V140LA20A 20 140L20 140 180 75 6500 198 242 340 100 1750

V150LA1 7 1501 150 200 13 1200 212 284 430 10 150

V150LA2 7 1502 150 200 13 1200 212 268 395 10 150

V150LA5 10 1505 150 200 25 2500 212 268 395 25 360

V150LA10A 14 150L10 150 200 45 4500 212 268 395 50 800

V150LA20A 20 150L20 150 200 80 6500 212 268 395 100 1600

V150LA20B 20 150L20B 150 200 80 6500 212 243 360 100 1600

V175LA2 7 1752 175 225 15 1200 247 303 455 10 130

V175LA5 10 1755 175 225 30 2500 247 303 455 25 350

V175LA10A 14 175L10 175 225 55 4500 247 303 455 50 700

V175LA20A 20 175L20 175 225 90 6500 247 303 455 100 1400

V230LA4 7 2304 230 300 20 1200 324 396 595 10 100

V230LA10 10 230L 230 300 35 2500 324 396 595 25 250

V230LA20A 14 230L20 230 300 70 4500 324 396 595 50 550

V230LA40A 20 230L40 230 300 122 6500 324 396 595 100 1100

DISC

DIA.

(mm)

DEVICE
MODEL

NUMBER

BRAND-

ING

RMS

V

M(AC)VM(DC)

(V) (V) (J) (A) (V) (V) (A) (pF)

V

DC

ENERGY

10 x 1000µs

W

o

C) SPECIFICATIONS (25oC)

TM

PEAK

CURRENT

8 x 20µs

I

TM

VARISTOR VOLT-

AGE AT 1mA DC

TEST CURRENT

NOM

V

NOM

MAX V

V

MIN

MAXIMUM

CLAMPING

VO LTAGE

8 x 20µs

CIPK

TYPICAL
CAPACI-

TANCE

f = 1MHzV

C

Varistor Products

V250LA2 7 2502 250 330 21 1200 354 473 730 10 90
V250LA4 7 2504 250 330 21 1200 354 429 650 10 90
V250LA10 10 250L 250 330 40 2500 354 429 650 25 220
V250LA20A 14 250L20 250 330 72 4500 354 429 650 50 500
V250LA40A 20 250L40 250 330 130 6500 354 429 650 100 1000
V250LA40B 20 250L40B 250 330 130 6500 354 413 620 100 1000
V275LA2 7 2752 275 369 23 1200 389 515 775 10 80
V275LA4 7 2754 275 369 23 1200 389 473 710 10 80
V275LA10 10 275L 275 369 45 2500 389 473 710 25 200
V275LA20A 14 275L20 275 369 75 4500 389 473 710 50 450
V275LA40A 20 275L40 275 369 140 6500 389 473 710 100 900
V275LA40B 20 275L40B 275 369 140 6500 389 453 680 100 900
V300LA2 7 3002 300 405 25 1200 420 565 870 10 70
V300LA4 7 3004 300 405 25 1200 420 517 775 10 70
V300LA10 10 300L 300 405 46 2500 420 517 775 25 180
V300LA20A 14 300L20 300 405 77 4500 420 517 775 50 400
V300LA40A 20 300L40 300 405 165 6500 420 517 775 100 800
V320LA7 7 3207 320 420 25 1200 462 565 850 10 65
V320LA10 10 320L 320 420 48 2500 462 565 850 25 170
V320LA20A 14 320L20 320 420 80 4500 462 565 850 50 380
V320LA40B 20 320L40 320 420 150 6500 462 540 810 100 750
V385LA7 7 3857 385 505 27 1200 558 682 1025 10 60
V385LA10 10 385L 385 505 51 2500 558 682 1025 25 160
V385LA20A 14 385L20 385 505 85 4500 558 682 1025 50 360
V385LA40B 20 385L40 385 505 160 6500 558 682 1025 100 700
V420LA7 7 4207 420 560 30 1200 610 748 1120 10 55
V420LA10 10 420L 420 560 55 2500 610 748 1120 25 140
V420LA20A 14 420L20 420 560 90 4500 610 748 1120 50 300
V420LA40B 20 420L40 420 560 160 6500 610 720 1060 100 600
V460LA7 7 4607 460 615 37 1200 702 858 1130 10 55
V480LA7 7 4807 480 640 35 1200 670 825 1240 10 50
V480LA10 10 480L 480 640 60 2500 670 825 1240 25 120
V480LA40A 14 480L40 480 640 105 4500 670 825 1240 50 270
V480LA80B 20 480L80 480 640 180 6500 670 790 1160 100 550
V510LA10 10 510L 510 675 63 2500 735 910 1350 25 100
V510LA40A 14 510L40 510 675 110 4500 735 910 1350 50 250
V510LA80B 20 510L80 510 675 190 6500 735 860 1280 100 500
V575LA10 10 575L 575 730 65 2500 805 1000 1500 25 90
V575LA40A 14 575L40 575 730 120 4500 805 1000 1500 50 220
V575LA80B 20 575L80 575 730 220 6500 805 960 1410 100 450
V625LA10 10 625L 625 825 67 2500 900 1100 1650 25 80
V625LA40A 14 625L40 625 825 125 4500 900 1100 1650 50 210
V625LA80B 20 625L80 625 825 230 6500 900 1100 1650 100 425

PART

NUMBER

MODEL

SIZE
DISC

DIA.

(mm)

DEVICE
MODEL

NUMBER

BRAND-

ING

MAXIMUM RATING (85

o

C) SPECIFICATIONS (25oC)

CONTINUOUS TRANSIENT

VARISTOR VOLT-

AGE AT 1mA DC

TEST CURRENT

MAXIMUM

CLAMPING

VOLTAGE

8 x 20µs

TYPICAL
CAPACI-

TANCE

f = 1MHzV

RMS

V

DC

ENERGY

10 x 1000µs

PEAK

CURRENT

8 x 20µs

V

M(AC)VM(DC)

W

TM

I

TM

V

NOM

MIN

V

NOM

MAX V

CIPK

C

(V) (V) (J) (A) (V) (V) (A) (pF)

Line V oltage Operation, Radial Lead

LA V aristor Series

Device Ratings and Specifications

52

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