Varistor Products

©2011 Littelfuse, Inc.

Revision: September 25, 2011

Specifications are subject to change without notice.

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

Repetitive Surge Capability for 14mm Parts

Repetitive Surge Capability for 20mm Parts

Wave Solder Profile

NOTE:Averagepowerdissipationoftransientsshouldnotexceed0.6W

NOTE:Averagepowerdissipationoftransientsshouldnotexceed1.0W

Operating/Storage

Temperature

-40°Cto+85°C

Passive Aging

+85°C,1000hours

+/-10%typicalvoltagechange

Humidity Aging

+85°C,85%RH,1000hours

+/-10%typicalvoltagechange

Thermal Shock

+85°Cto-40°C5times

+/-10%typicalvoltagechange

Solvent Resistance

MIL–STD–202,Method215F

Moisture Sensitivity

Level1,J–STD–020C

Lead Material

NonLead–freeparts:Soldercoated

Copperwire,orTin–coatedCopperwire

Lead–freeparts:Tin–coatedCopperwire

Soldering

Characteristics

SolderabilityperMIL–STD–202,

Method208E

Insulating Material

Cured,flameretardantepoxypolymer

meetsUL94V–0requirements

Device Labeling

MarkedwithLF,voltage,UL/CSAlogos,

anddatecode

Physical Specifications

Environmental Specifications

Twosolderingmethodsarepossible.Firstly,handsoldering:Itisrecommendedtoheat-sinktheleadsofthedevice.Secondly,wavesolder-

ing:Itiscriticallyimportantthatallpreheatstageandthesolderbathtemperaturesarerigidlycontrolled.

0

50

100

150

200

250

300

00.5

11.5

22.5

33.5

4

TIME(MINUTES)

Maximum Wave 240C

Lead–free Profile

0

50

100

150

200

250

300

00.5

11.5

22.5

33.5

4

TIME(MINUTES)

Maximum Wave 260C

Non Lead–free Profile

Figure 9: Pulse Rating Curves for 20mm types

1

10

100

1000

10000

10

100

1000

10000

Impulse Duration (s)

1

10

2

10

3

Model 20 mm

2

10

4

10

5

10

Figure 8: Pulse Rating Curves for 14mm types

1

10

100

1000

10000

10

100

1000

10000

Impulse Duration (µs)

1

10

Model 14 mm

2

10

5

10

6

Figure 5

Figure 6

Figure 7

Figure 8