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Metal-Oxide Varistors

(MOVs)

Radial Lead Varistors > TMOV

25S Varistor Series

TMOV

25S Varistor Series

Description

RoHS

Metal Oxide Varistors (MOVs) are rated for specific AC line

operating voltages, and exceeding these limits through the

application of a sustained abnormal over-voltage condition

could result in overheating and damage to the MOV.

The Littelfuse TMOV

25S Varistor Series was designed to

address this condition in a single integrated package.

The TMOV

25S Varistor Series incorporates a patented

integrated thermally responsive element within the body

of the device which will open-circuit the varistor in case of

overheating due to the abnormal over-voltage events.

Agency Approvals

Agency

Agency Approval

Agency File Number

The TMOV

25S Varistor Series meets the surge suppressor

component recognition requirements of UL1449 3rd

edition for both cord connected and permanently

connected SPD end products.

UL1449

E320116

IEC-CECC Spec:

QC42201-C001,

QC42201-A001,

IEC 60950-1 (Annex Q)

IEC 61051-1,

IEC 61051-2,

IEC 60950-1 (Annex Q)

Features

E1274/F

•

RoHS Compliant

and Lead-free

Standard Operating

Voltage Range

Compatible with

Common AC Line

Voltages (115VAC

to 750VAC

High peak surge current

rating up to 20kA at

single 8/20µS impulse

•

Standard lead form

and spacing option

-55°C to +85°C operating

temperature range

• Wave solderable

40021525

•

Additional Information

•

Applications

Datasheet

Resources

Samples

•

SPD Products

AC Panel Protection Modules

AC/DC power supplies

UPS (Uninterruptible Power Supply)

Specifications are subject to change without notice.

Revised: 11/07/17

Radial Lead Varistors > TMOV

25S Varistor Series

Metal-Oxide Varistors

(MOVs)

Absolute Maximum Ratings

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

TMOV

25S Varistor Series

Continous:

AC Voltage Range (V

M(AC)RMS

)

Transient:

Peak Pulse Current (I

)

For 8x20μs Current Wave, single pulse

Single-Pulse Energy Capability

For 2ms Current Wave

Operating Ambient Temperature Range (T

)

Storage Temperature Range (T

STG

)

Temperature Coefficient (αV) of Clamping Voltage (V

) at Specified Test Current

Hi-Pot Encapsulation (COATING Isolation Voltage Capability)

Thermal Protection Isolation Voltage Capability (when operated)

*See notes under Device Ratings & Specifications section for more information

COATING Insulation Resistance

170 to 670

-55 to +85

-55 to +125

<0.01

2,500

600*

1,000

20,000

115 to 750

Units

°C

%/°C

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 & Specifications

Maximum Rating (85°C)

Continuous

Transient

Model

Size Disc

Diameter

(mm)

Volts

M(AC)RMS

(V)

P25T115M

P25T130M

P25T140M

P25T150M

P25T175M

115

130

140

150

175

200

230

250

275

300

320

385

420

440

460

510

550

625

750

Volts

M(DC)

(V)

150

170

180

200

225

265

300

320

350

385

420

505

560

585

615

670

745

825

970

Peak

Energy

Current

2ms

8/20μs

(J)

170

190

210

220

250

270

300

330

350

370

390

430

460

470

490

520

550

600

670

1 ×

Pulse

(A)

20000

Specifications (25 °C)

Varistor

Voltage at

1mA Test

Current

N(DC)

Min

(V)

162

198

216

243

283

324

351

387

423

459

558

612

675

738

819

900

198

242

264

297

345

396

429

473

517

561

682

748

825

902

1001

1100

N(DC)

Max

Clamping

Typical

Voltage at

Capacitance

100A Current

(f=1MHz)

8/20μs

(V)

295

335

355

390

450

530

585

640

700

765

825

1010

1100

1160

1220

1335

1475

1625

1950

(pF)

3200

2800

2500

2300

1900

1700

1500

1400

1250

1150

1080

900

820

790

750

680

630

550

460

2 Leaded Device -

Without Indicator Lead

3 Leaded Device -

With Indicator Lead Option

Part

Number

TMOV25SP115E

TMOV25SP130E

TMOV25SP140E

TMOV25SP150E

TMOV25SP175E

Branding

P25T115E

P25T130E

P25T140E

P25T150E

P25T175E

Part

Number

TMOV25SP115M

TMOV25SP130M

TMOV25SP140M

TMOV25SP150M

TMOV25SP175M

Branding

20000 184.5 225.5

TMOV25SP200E P25T200E TMOV25SP200M P25T200M

TMOV25SP230E P25T230E

TMOV25SP250E P25T250E

TMOV25SP275E P25T275E

TMOV25SP320E P25T320E

TMOV25SP385E P25T385E

TMOV25SP420E P25T420E

TMOV25SP440E P25T440E

TMOV25SP460E P25T460E

TMOV25SP510E

P25T510E

TMOV25SP550E P25T550E

TMOV25SP625E P25T625E

TMOV25SP750E P25T750E

TMOV25SP230M P25T230M

TMOV25SP250M P25T250M

TMOV25SP275M P25T275M

TMOV25SP320M P25T320M

TMOV25SP385M P25T385M

TMOV25SP420M P25T420M

TMOV25SP440M P25T440M

TMOV25SP460M P25T460M

TMOV25SP510M

P25T510M

TMOV25SP550M P25T550M

TMOV25SP625M P25T625M

TMOV25SP750M P25T750M

TMOV25SP300E P25T300E TMOV25SP300M P25T300M

20000 643.5 786.5

1080 1320

Notes:

Average power dissipation of transients should not exceed 1.5 watts.

Specifications are subject to change without notice.

Revised: 11/07/17

Metal-Oxide Varistors

(MOVs)

Radial Lead Varistors > TMOV

25S Varistor Series

Thermal Characteristics

Typical time to open circuit under UL 1449 Abnormal Overvoltage

Limited Current Test:

Peak Current & Energy Derating Curve

100

PERCENT OF RATED VALUE

-55

Typical

Current (A)

10 A

2.5 A

0.5 A

100

110

120

130

0.1

100

1000

10000

Figure 2

Time (secs)

AMBIENT TEMPERATURE (ºC)

Figure 1

For applications exceeding 85ºC ambient temperature, the peak

surge current and energy ratings must be reduced as shown.

Transient V–I Characteristic Curves

10000

750

625

460

510

550

Maximum Peak Voltage (V)

385

420

440

1000

275

140

150

175

230

250

300

320

115

100

10µA

100µA

1mA

10mA

130

100mA

Peak Current

10A

100A

1000A

10000A

100000A

Figure 3

Specifications are subject to change without notice.

Revised: 11/07/17

Radial Lead Varistors > TMOV

25S Varistor Series

Metal-Oxide Varistors

(MOVs)

Pulse Rating Curve

100000

Number of Pulses

10000

Surge Current (A)

1000

100

∞

100

Impulse Duration (µsecs)

1000

10000

Figure 4

Wave Solder Profile

Because the TMOV

25S Varistor Series contains a

thermally responsive device, care must be taken when

soldering the device into place. Two soldering methods

are possible. Firstly, hand soldering: We recommend

the use of pliers to heat-sink the leads of the device.

Secondly, wave-soldering: This is a strenuous process

requiring pre-heat stages to reduce the stresses on

devices.

It is critically important that all preheat stage and the

solder bath temperatures are rigidly controlled. The

recommended solder for the TMOV

Varistor Series

is a 62/36/2 (Sn/Pb/Ag), 60/40 (Sn/Pb) or 63/37 (Sn/

Pb). Littelfuse also recommends an RMA solder flux.

SAC solders (SnAgCu) are recommended for Lead-free

applications.

Soldering Profile

300

MAXIMUM WAVE 260ºC

250

TEMPERATURE (ºC)

200

150

100

PREHEAT

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

TIME (MINUTES)

Figure 5

Specifications are subject to change without notice.

Revised: 11/07/17

Metal-Oxide Varistors

(MOVs)

Radial Lead Varistors > TMOV

25S Varistor Series

Physical Specifications

Lead Material

Soldering

Characteristics

Insulating Material

Device Labeling

Tin–coated Copper wire

Solderability per MIL

-STD-202,

Method 208

Cured, flame retardant epoxy polymer

meets UL94V-0 requirements

Marked with LF voltage, UL logos, and

date code

Environmental Specifications

Operating/Storage

Temperature

Humidity Aging

Thermal Shock

Solvent Resistance

Moisture Sensitivity

-55°C to +85°C

+85°C, 85%R.H., 1000 hours

-/+10% typical voltage change

+85°C to -40°C 5 times

-/+10% typical voltage change

MIL

-STD-202, Method 215

Level 1, J-STD-020

Application Example

Line Fuse

Line

Monitor

Lead

Diode

LED

Neutral

TO PROTECTED CIRCUIT

The application example left shows how the indicator lead

on the TMOV

Varistor can be used to indicate that thermal

element has been opened. This signifies that the circuit is

no longer protected from transients by the MOV.

Monitor

Lead

2 3

Dimensions

2 Leaded Device

Without Indicator Lead

(E part number sufﬁx)

3 Leaded Device

With Indicator Lead Option

(M part number sufﬁx)

Indicator

Lead

Specifications are subject to change without notice.

Revised: 11/07/17

型号	TMOV25SP250E	TMOV25SP550E	TMOV25SP440E	TMOV25SP115E
描述	Varistors 250V 20kASQ 25MM PB FREE 25S	Varistors 550VAC 765J 1475V CLAMP 22KAPK 25MM	Varistors 440V 20kASQ 25MM PB FREE 25S	Varistors 115V 20kASQ 25MM PB FREE 25S
产品种类 Product Category	-	Varistors	Varistors	Varistors
制造商 Manufacturer	-	Littelfuse	Littelfuse	Littelfuse
系列 Packaging	-	Bulk	Bulk	Bulk
工厂包装数量 Factory Pack Quantity	-	80	100	100

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