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Radial Lead Varistors > C-III series

RoHS

C-III Varistor Series

Description

The C-III Series of Metal-Oxide Varistors (MOVs) are

speciﬁcally designed for applications requiring high surge

energy absorption ratings and superior multiple pulse

absorption rating. This is achieved through a special

dielectric material formulation which also results in

higher repetitive surge ratings than other MOV types.

The C-III Series is primarily intended for use in AC

lineTransient Voltage Surge Suppressor (TVSS)

product environment and other similar applications

requiring high transient energy and peak current

capability in a relatively small package size.

Agency Approvals

Features

Agency

Agency File Number

tꢀ -FBEoGSFFꢁꢀ)BMPHFOꢂ'SFFꢀ

BOEꢀ3P)4ꢀDPNQMJBOU

tꢀ "WBJMBCMFꢀJOꢀUBQFꢀBOEꢀ

reel for automatic

E320116

insertion; Also available

XJUIꢀDSJNQFEꢀBOEꢇPSꢀ

trimmed lead styles

tꢀ )Jgh energy

absorption capability

-3ꢌꢃꢍꢆꢆ

ꢃꢃꢊꢆꢌꢋ

W_TM40J to 530J (2ms)

tꢀ /PꢀEFSBUJOHꢀVQꢀUPꢀ

ꢆꢋ$ꢀBNCJFOU

tꢀ )JHIꢀQVMTFꢀMJGFꢀSBUJOHꢀ

tꢀ )JHIꢀQFBLꢀQVMTFꢀ

42201-006

tꢀ The C-III Series is

TVQQMJFEꢀJOꢀꢃꢄNNꢁꢀ

14mm and 20mm

disc versions with

various lead options

current capability

I_TM3500A to

ꢃꢄꢁꢄꢄꢄ"ꢀꢅꢆꢇꢈꢄμs)

tꢀ Wide operating

voltage range

V_M(AC)RMSꢀꢃꢉꢄ7ꢀUPꢀꢊꢆꢄ7

Absolute Maximum Ratings

tꢀ'PSꢀSBUJOHTꢀPGꢀJOEJWJEVBMꢀNFNCFSTꢀPGꢀBꢀTFSJFTꢁꢀTFFꢀ%FWJDFꢀ3BUJOHTꢀBOEꢀ4QFDJmDBUJPOTꢀDIBSU

Continuous

C-III Series

Units

Steady State Applied Voltage:

%$ꢀ7PMUBHFꢀ3BOHFꢀꢅ7_M(AC)RMS

)

130 to 660

V

Transients:

Single-Pulse Peak Current (I_TMꢎꢀꢆꢇꢈꢄμs Wave

(See Peak Pulse Current Test Waveform)

ꢉꢋꢄꢄꢀUPꢀꢃꢄꢁꢄꢄꢄ

A

Single-Pulse Energy Range (W_TM)2ms Rectangular Wave

Operating AmbientTemperature Range (T_A)

40 to 530

ꢂꢋꢋꢀUPꢀꢏꢆꢋ

-55 to +125

<0.0

J

$

StorageTemperature Range (T_STG

)

$

Temperature Coefﬁcient (a^V) of Clamping Voltage (V_C) at SpeciﬁedTest Current

)Jꢂ1PUꢀ&ODBQTVMBUJPOꢀꢅ$0"5*/(ꢀ*TPMBUJPOꢀ7PMUBHFꢀ$BQBCJMJUZꢎ

$0"5*/(ꢀ*OTVMBUJPOꢀ3FTJTUBODF

ꢐꢇ$

V

2500

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.

C-IIIVaristor Series

Speciﬁcations are subject to change without notice.

Revision: September 9, 2010

Please refer to www.littelfuse.com/series/c-iii.html for current information.

Varistor Products

Radial Lead Varistors > C-III series

C-III Series Ratings

Maximum Ratings (85 °C)

Speciﬁcations (25 °C)

Maximum

Continuous

Transient

Varistor Voltage

Clamping

Voltage

(8/20μs)

Duty Cycle

at 1mA DCTest

Current

Peak Current

Surge Rating

Disc

Size

(mm)

(8/20μs)

I_TM1I_TM2

Maximum Withstanding

Part Number

Branding

V_RMS

Energy (2ms)

3kA

750A

V_M(AC)

(V)

W_TM

(

)

V_/

Min

(V)

V_/

Max

(V)

V_C

(V)

I_p(8/20μs) (8/20μs)

1 Pulse 2 Pulses

(A)

(J)

(A)

#

(A)

Pulses Pulses

7ꢃꢉꢄ-"ꢋ$1

7ꢃꢉꢄ-"ꢃꢄ$1

7ꢃꢉꢄ-"ꢈꢄ$1

1ꢃꢉꢄ-ꢋ$

1ꢃꢉꢄ-ꢃꢄ$

1ꢃꢉꢄ-ꢈꢄ$

10

14

20

10

14

20

10

14

20

10

14

20

10

14

20

10

14

20

10

14

20

10

14

20

10

14

20

14

20

14

20

10

14

20

14

20

14

20

130

140

150

ꢃꢍꢋ

230

250

ꢈꢍꢋ

300

320

ꢉꢆꢋ

420

460

ꢑꢆꢄ

510

40

ꢆꢄ

200

45

3500

6500

10000

3500

3000

5000

ꢍꢄꢄꢄ

3000

5000

ꢍꢄꢄꢄ

3000

5000

ꢍꢄꢄꢄ

3000

5000

ꢍꢄꢄꢄ

3000

5000

ꢍꢄꢄꢄ

3000

5000

ꢍꢄꢄꢄ

3000

5000

ꢍꢄꢄꢄ

3000

5000

ꢍꢄꢄꢄ

3000

5000

ꢍꢄꢄꢄ

5000

ꢍꢄꢄꢄ

5000

ꢍꢄꢄꢄ

3000

5000

ꢍꢄꢄꢄ

5000

ꢍꢄꢄꢄ

5000

ꢍꢄꢄꢄ

ꢃꢆꢑ

ꢃꢌꢆ

212

ꢈꢑꢍ

324

354

ꢉꢆꢌ

420

462

ꢋꢋꢆ

610

640

ꢊꢍꢄ

ꢍꢉꢋ

ꢈꢈꢆ

220

242

230

ꢈꢊꢆ

243

303

ꢈꢆꢋ

ꢉꢌꢊ

ꢉꢆꢑ

ꢑꢈꢌ

413

ꢑꢍꢉ

453

ꢋꢃꢍ

ꢑꢌꢄ

565

540

ꢊꢆꢈ

ꢍꢑꢆ

ꢍꢌꢄ

ꢆꢈꢋ

ꢌꢃꢄ

340

325

360

340

ꢉꢌꢋ

360

455

425

ꢋꢌꢋ

ꢋꢍꢄ

650

620

ꢍꢃꢄ

ꢊꢆꢄ

ꢍꢍꢋ

ꢍꢑꢋ

ꢆꢋꢄ

ꢆꢃꢄ

1025

25

50

100

25

2

20

ꢆꢄ

120

20

10

20

2

10

20

2

10

20

2

10

20

2

10

20

2

10

20

2

10

20

2

10

20

2

10

20

10

20

10

20

2

10

20

10

20

10

20

7ꢃꢉꢄ-"ꢈꢄ$19ꢉꢈꢋ 1ꢃꢉꢄ9ꢉꢈꢋ

7ꢃꢑꢄ-"ꢋ$1

7ꢃꢑꢄ-"ꢃꢄ$1

7ꢃꢑꢄ-"ꢈꢄ$1

1ꢃꢑꢄ-ꢋ$

1ꢃꢑꢄ-ꢃꢄ$

1ꢃꢑꢄ-ꢈꢄ$

ꢌꢄ

6500

50

ꢆꢄ

210

50

100

215

55

110

220

60

125

ꢈꢆꢄ

65

135

300

ꢍꢄ

145

320

ꢍꢋ

155

335

ꢆꢄ

165

345

ꢃꢍꢋ

ꢉꢍꢄ

ꢃꢆꢋ

ꢉꢌꢄ

ꢌꢋ

10000

3500

100

25

120

20

7ꢃꢑꢄ-"ꢈꢄ$19ꢉꢑꢄ 1ꢃꢑꢄ9ꢉꢑꢄ

7ꢃꢋꢄ-"ꢋ$1

7ꢃꢋꢄ-"ꢃꢄ$1

7ꢃꢋꢄ-"ꢈꢄ$1

1ꢃꢋꢄ-ꢋ$

1ꢃꢋꢄ-ꢃꢄ$

1ꢃꢋꢄ-ꢈꢄ$

6500

50

ꢆꢄ

10000

3500

100

25

120

20

7ꢃꢋꢄ-"ꢈꢄ$19ꢉꢊꢄ 1ꢃꢋꢄ9ꢉꢊꢄ

7ꢃꢍꢋ-"ꢋ$1

7ꢃꢍꢋ-"ꢃꢄ$1

7ꢃꢍꢋ-"ꢈꢄ$1

1ꢃꢍꢋ-ꢋ$

1ꢃꢍꢋ-ꢃꢄ$

1ꢃꢍꢋ-ꢈꢄ$

6500

50

ꢆꢄ

10000

3500

100

25

120

20

7ꢃꢍꢋ-"ꢈꢄ$19ꢑꢈꢋ 1ꢃꢍꢋ9ꢑꢈꢋ

7ꢈꢉꢄ-"ꢃꢄ$1

7ꢈꢉꢄ-"ꢈꢄ$1

7ꢈꢉꢄ-"ꢑꢄ$1

1ꢈꢉꢄ-ꢃꢄ$

1ꢈꢉꢄ-ꢈꢄ$

1ꢈꢉꢄ-ꢑꢄ$

6500

50

ꢆꢄ

10000

3500

100

25

120

20

7ꢈꢉꢄ-"ꢑꢄ$19ꢋꢍꢄ 1ꢈꢉꢄ9ꢋꢍꢄ

7ꢈꢋꢄ-"ꢃꢄ$1

7ꢈꢋꢄ-"ꢈꢄ$1

7ꢈꢋꢄ-"ꢑꢄ$1

1ꢈꢋꢄ-ꢃꢄ$

1ꢈꢋꢄ-ꢈꢄ$

1ꢈꢋꢄ-ꢑꢄ$

6500

50

ꢆꢄ

10000

3500

100

25

120

20

7ꢈꢋꢄ-"ꢑꢄ$19ꢊꢈꢄ 1ꢈꢋꢄ9ꢊꢈꢄ

7ꢈꢍꢋ-"ꢃꢄ$1

7ꢈꢍꢋ-"ꢈꢄ$1

7ꢈꢍꢋ-"ꢑꢄ$1

1ꢈꢍꢋ-ꢃꢄ$

1ꢈꢍꢋ-ꢈꢄ$

1ꢈꢍꢋ-ꢑꢄ$

6500

50

ꢆꢄ

10000

3500

100

25

120

20

7ꢈꢍꢋ-"ꢑꢄ$19ꢊꢆꢄ 1ꢈꢍꢋ9ꢊꢆꢄ

7ꢉꢄꢄ-"ꢃꢄ$1

7ꢉꢄꢄ-"ꢈꢄ$1

7ꢉꢄꢄ-"ꢑꢄ$1

1ꢉꢄꢄ-ꢃꢄ$

1ꢉꢄꢄ-ꢈꢄ$

1ꢉꢄꢄ-ꢑꢄ$

6500

50

ꢆꢄ

10000

3500

100

25

120

20

7ꢉꢄꢄ-"ꢑꢄ$19ꢍꢑꢋ 1ꢉꢄꢄ9ꢍꢑꢋ

7ꢉꢈꢄ-"ꢃꢄ$1

7ꢉꢈꢄ-"ꢈꢄ$1

7ꢉꢈꢄ-"ꢑꢄ$1

1ꢉꢈꢄ-ꢃꢄ$

1ꢉꢈꢄ-ꢈꢄ$

1ꢉꢈꢄ-ꢑꢄ$

6500

50

ꢆꢄ

10000

6500

10000

6500

10000

3500

6500

10000

6500

10000

6500

100

50

120

ꢆꢄ

120

ꢆꢄ

120

20

ꢆꢄ

120

ꢆꢄ

120

ꢆꢄ

7ꢉꢈꢄ-"ꢑꢄ$19ꢆꢃꢄ 1ꢉꢈꢄ9ꢆꢃꢄ

7ꢉꢆꢋ-"ꢈꢄ$1

7ꢉꢆꢋ-"ꢑꢄ$1

7ꢑꢈꢄ-"ꢈꢄ$1

7ꢑꢈꢄ-"ꢑꢄ$1

7ꢑꢊꢄ-"ꢃꢄ$1

7ꢑꢊꢄ-"ꢈꢄ$1

7ꢑꢊꢄ-"ꢑꢄ$1

7ꢑꢆꢄ-"ꢑꢄ$1

7ꢑꢆꢄ-"ꢆꢄ$1

7ꢋꢃꢄ-"ꢑꢄ$1

7ꢋꢃꢄ-"ꢆꢄ$1

1ꢉꢆꢋ-ꢈꢄ$

1ꢉꢆꢋ-ꢑꢄ$

1ꢑꢈꢄ-ꢈꢄ$

1ꢑꢈꢄ-ꢑꢄ$

1ꢑꢊꢄ-ꢃꢄ$

1ꢑꢊꢄ-ꢈꢄ$

1ꢑꢊꢄ-ꢑꢄ$

1ꢑꢆꢄ-ꢑꢄ$

1ꢑꢆꢄ-ꢆꢄ$

1ꢋꢃꢄ-ꢑꢄ$

1ꢋꢃꢄ-ꢆꢄ$

1025 100

1120 50

1120 100

ꢃꢃꢌꢄ

ꢃꢃꢌꢄ 100

1240 50

1240 100

1350 50

1350 100

25

50

ꢃꢌꢄ

430

ꢃꢌꢋ

420

205

440

10000

120

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/c-iii.html for current information.

C-IIIVaristor Series

Revision: September 9, 2010

Varistor Products

Radial Lead Varistors > C-III series

C-III Series Speciﬁcations (continued from previous page)

Maximum Ratings (85 °C)

Continuous Transient

Speciﬁcations (25 °C)

Maximum

Varistor Voltage

Clamping

Voltage

(8/20μs)

Duty Cycle

at 1mA DCTest

Current

Peak Current

(8/20μs)

Surge Rating

Disc

Size

(mm)

Maximum Withstanding

Part Number

Branding

V_RMS

Energy (2ms)

3kA

750A

I_TM1

I_TM2

V_M(AC)

(V)

W_TM

(

)

V_/

Min

(V)

V_/

Max

(V)

V_C

(V)

I_p(8/20μs) (8/20μs)

1 Pulse 2 Pulses

(A)

(J)

(A)

#

(A)

Pulses Pulses

7ꢋꢋꢄ-"ꢑꢄ$1

7ꢋꢋꢄ-"ꢆꢄ$1

7ꢋꢍꢋ-"ꢑꢄ$1

7ꢋꢍꢋ-"ꢆꢄ$1

7ꢊꢈꢋ-"ꢑꢄ$1

7ꢊꢈꢋ-"ꢆꢄ$1

7ꢊꢊꢄ-"ꢆꢄ$1

7ꢊꢆꢄ-"ꢆꢄ$1

7ꢊꢆꢄ-"ꢃꢄꢄ$1

/05&4ꢒ

1ꢋꢋꢄ-ꢑꢄ$

1ꢋꢋꢄ-ꢆꢄ$

1ꢋꢍꢋ-ꢑꢄ$

1ꢋꢍꢋ-ꢆꢄ$

1ꢊꢈꢋ-ꢑꢄ$

1ꢊꢈꢋ-ꢆꢄ$

1ꢊꢊꢄ-ꢆꢄ$

1ꢊꢆꢄ-ꢆꢄ$

1ꢊꢆꢄ-ꢃꢄꢄ$

14

20

14

20

14

20

14

20

550

ꢋꢍꢋ

625

660

ꢊꢆꢄ

210

450

230

460

235

ꢑꢌꢄ

510

240

520

6500

10000

6500

10000

6500

10000

6500

5000

ꢍꢄꢄꢄ

5000

ꢍꢄꢄꢄ

5000

ꢍꢄꢄꢄ

5000

ꢍꢄꢄꢄ

ꢍꢆꢄ

ꢆꢄꢋ

ꢌꢄꢄ

ꢌꢑꢄ

ꢌꢌꢄ

ꢌꢍꢄ

1435

50

10

20

10

20

10

20

10

20

ꢆꢄ

120

ꢆꢄ

120

ꢆꢄ

120

ꢆꢄ

1435 100

1500 50

1500 100

1650 50

ꢃꢍꢈꢋ 100

ꢃꢆꢈꢄ 100

1000

1100

1210

1130

ꢃꢆꢈꢄ

ꢃꢍꢄꢄ 100

50

10000

120

ꢀ

ꢂꢀ"WFSBHFꢀQPXFSꢀEJTTJQBUJPOꢀPGꢀUSBOTJFOUTꢀOPUꢀUPꢀFYDFFEꢀꢄꢓꢊ8ꢀBOEꢀꢃ8ꢀGPSꢀNPEFMꢀTJ[FTꢀꢃꢑNNꢀBOEꢀꢈꢄNNꢁꢀSFTQFDUJWFMZꢓꢀ

ꢂꢀꢍNNꢀQBSUTꢀBMTPꢀBWBJMBCMFꢂDPOUBDUꢀGBDUPSZꢀGPSꢀGVSUIFSꢀJOGPSNBUJPOꢀ

ꢂꢀ'PSꢀBEEJUJPOBMꢀPSꢀJOUFSNFEJBSZꢀWPMUBHFꢀSBUJOHTꢀDPOUBDUꢀGBDUPSZ

Phenolic Coating Option -- C-III SeriesVaristors for Hi-Temperature Operating Conditions:

tꢀ 1IFOPMJDꢀ$PBUFEꢀ$***ꢀ4FSJFTꢀEFWJDFTꢀBSFꢀBWBJMBCMFꢀXJUIꢀJNQSPWFEꢀNBYJNVNꢀPQFSBUJOHꢀNBYJNVNꢀUFNQFSBUVSFꢀꢃꢈꢋ$ꢀ

tꢀ 5IFTFꢀEFWJDFTꢀBMTPꢀIBWFꢀJNQSPWFEꢀUFNQFSBUVSFꢀDZDMJOHꢀQFSGPSNBODFꢀDBQBCJMJUZꢓꢀ

tꢀ 3BUJOHTꢀBOEꢀ4QFDJmDBUJPOTꢀBSFꢀBTꢀQFSꢀTUBOEBSEꢀ$***ꢀ4FSJFTꢀFYDFQUꢀ)Jo1PUꢀ

Encapsulation (Isolation Voltage Capability)=500V.

tꢀ 5PꢀPSEFSꢒꢀBEEꢀ9ꢃꢉꢑꢍꢀUPꢀQBSUꢀOVNCFSꢀꢅFꢓHꢓꢀ7ꢈꢉꢄ-"ꢑꢄ$19ꢃꢉꢑꢍꢎꢀ

tꢀ 5IFTFꢀEFWJDFTꢀBSFꢀOPUꢀ6-ꢁꢀ$4"ꢁꢀ7%&ꢀPSꢀ$&$$ꢀDFSUJmFEꢓꢀ

tꢀ $POUBDUꢀGBDUPSZꢀGPSꢀGVSUIFSꢀEFUBJMTꢓ

C-IIIVaristor Series

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/c-iii.html for current information.

Revision: September 9, 2010

Varistor Products

Radial Lead Varistors > C-III series

Power Dissipation Ratings

Peak Pulse CurrentTestWaveform

4IPVMEꢀUSBOTJFOUTꢀPDDVSꢀJOꢀSBQJEꢀTVDDFTTJPOꢁꢀUIFꢀBWFSBHFꢀ

power dissipation is the energy (watt-seconds) per pulse

times the number of pulses per second. The power so

developed must be within the speciﬁcations shown on the

%FWJDFꢀ3BUJOHTꢀBOEꢀ4QFDJmDBUJPOTꢀ5BCMFꢀGPSꢀUIFꢀTQFDJmDꢀ

device. The operating values of a MOV need to be derated

at high temperatures as shown above. Because varistors

only dissipate a relatively small amount of average power

they are not suitable for repetitive applications that involve

substantial amounts of average power dissipation.

100

90

50

10

O

T

TIME

1

T

1

Current Energy and Power Derating Curve

T

2

Figure 2

0₁= Virtual Origin of Wave

5ꢀꢀꢔꢀ5JNFꢀGSPNꢀꢃꢄꢐꢀUPꢀꢌꢄꢐꢀPGꢀ1FBL

T₁= RiseTime = 1.25 xT

T₂ꢀꢔꢀ%FDBZꢀ5JNF

Example ꢂꢀ'PSꢀBOꢀꢆꢇꢈꢄꢀμTꢀ$VSSFOUꢀ8BWFGPSNꢒ

ꢆμs =T₁= RiseTime

100

90

80

70

60

50

40

30

20

10

0

20μs =T₂ꢀꢔꢀ%FDBZꢀ5JNF

-55

50

60

70

80

90 100 110 120 130 140 150

o

AMBIENTTEMPERATURE ( C)

Figure 1

TransientV-I Characteristics Curves

Pulse Rating Curves

Maximum ClampingVoltage for 10mm Parts

Repetitive Surge Capability for 10mm Parts

V130LA5C(P) –V460LA10C(P)

V130LA5C(P)-V320LA10C(P)

10,000

MODEL SIZE = 10mm

1

2

o

T

A

= -55 C TO 85

C

130 TO 625V

RATING

M(AC)

V460LA10C(P)

V320LA10C(P)

1,000

100

10

10⁴

10⁵

10⁶

10²

10³

V300LA10C(P)

V275LA10C(P)

V250LA10C(P)

1,000

V230LA10C(P)

∞

V175LA5C(P)

V150LA5C(P)

V140LA5C(P)

10

V130LA5C(P)

1

100

10

100

1,000

10,000

0.001

0.01

0.1

100

1000

10000

SURGE IMPULSE DURATION (μs)

Peak Amperes (A)

Figure 4

Figure 3

C-IIIVaristor Series

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/c-iii.html for current information.

Revision: September 9, 2010

Varistor Products

Radial Lead Varistors > C-III series

TransientV-I Characteristics Curves (continued)

Pulse Rating Curves (continued)

Maximum ClampingVoltage for 14mm Parts

Repetitive Surge Capability for 14mm Parts

V130LA10C(P) –V420LA20C(P)

V130LA10C(P)-V420LA20C(P)

10,000

MODEL SIZE = 14mm

1

o

10

2

T

A

= -55 C TO 85

C

MODEL SIZE = 14mm

130 TO 320V

RATING

M(AC)

2

V460LA20C(P)

V420LA20C(P)

V385LA20C(P)

10

1,000

100

10

V230LA20C(P)

3

4

V320LA20C(P)

V300LA20C(P)

V275LA20C(P)

V250LA20C(P)

1,000

∞

V175LA10C(P)

V150LA10C(P)

V140LA10C(P)

100

V130LA10C(P)

1

10

100

1,000

10,000

0.001

0.01

0.1

1

10000

10

1000

SURGE IMPULSE DURATION (μs)

Figure 5

Figure 6

Peak Amperes (A)

Maximum ClampingVoltage for 20mm Parts

Repetitive Surge Capability for 20mm Parts

V130LA20C(P)-V680LA100C(P)

V130LA5C(P) -V320LA10C (P)

10,000

V680LA100C(P)

MODEL SIZE = 20mm

10,000

1,000

100

V660LA100C(P)

1

o

T

A

= -55 C TO 85

C

2

10

130 TO 320V

RATING

V625LA80C(P)

MODEL SIZE = 20mm

M(AC)

2

10

V575LA80C(P)

V510LA80C(P)

3

4

V420LA40C(P) V460LA40C(P)

10

V480LA80C(P)

V385LA40C(P)

∞

1,000

V320LA40C(P)

10

V300LA40C(P)

V275LA40C(P)

V230LA40C(P)

V250LA40C(P)

V175LA20C(P)

V150LA20C(P)

V140LA20C(P)

1

V130LA20C(P)

100

10

100

1,000

10,000

0.01

0.1

1

100

Figure 7 ^0.001

10000

10

1000

SURGE IMPULSE DURATION (μs)

Figure 8

Peak Amperes (A)

Maximum ClampingVoltage for Low ClampingVoltage Parts

V130LA20CX325(P) -V300LA40CX245 (P)

10,000

V300LA40CX810(P)

V300LA40CX745(P)

V275LA40CX680(P)

V250LA40CX620(P)

1,000

V230LA40CX570(P)

V175LA20CX425(P)

V150LA20CX360(P)

V140LA20CX340(P)

V130LA20CX325(P)

100

1

1000

10000

0.001

10

0.01

0.1

100

Figure 9

Peak Amperes (A)

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/c-iii.html for current information.

C-IIIVaristor Series

Revision: September 9, 2010

Varistor Products

Radial Lead Varistors > C-III series

Wave Solder Proﬁle

Non Lead–free Proﬁle

Lead–free Proﬁle

300

250

200

150

100

50

300

Maximum Wave 260C

Maximum Wave 240C

250

200

150

100

50

0

0.5

1

1.5

2

2.5

3

3.5

4

0

0.5

1

1.5

2

2.5

3

3.5

4

Figure 10

Figure 11

TIME(MINUTES)

Physical Speciﬁcations

Environmental Speciﬁcations

Operating/Storage

Lead Material

5JOo$PBUFEꢀ$PQQFSꢀ8JSF

ꢂꢋꢋ¡$ꢀUPꢀꢏꢆꢋ¡$ꢇꢂꢋꢋ¡$ꢀUPꢀꢏꢃꢈꢋ¡$

Temperature

Soldering

Characteristics

4PMEFSBCJMJUZꢀQFSꢀ.*-o45%oꢈꢄꢈꢁꢀ

.FUIPEꢀꢈꢄꢆ&

ꢏꢆꢋ¡$ꢁꢀꢆꢋꢐꢀ3)ꢁꢀꢃꢄꢄꢄꢀIPVST

ꢏꢇꢂꢃꢄꢐꢀUZQJDBMꢀWPMUBHFꢀDIBOHF

Humidity Aging

$VSFEꢁꢀnBNFꢀSFUBSEBOUꢀFQPYZꢀQPMZNFSꢀ

NFFUTꢀ6-ꢌꢑ7oꢄꢀSFRVJSFNFOUT

ꢏꢆꢋ¡$ꢀUPꢀꢂꢑꢄ¡$ꢀꢃꢄꢀUJNFT

ꢏꢇꢂꢃꢄꢐꢀUZQJDBMꢀWPMUBHFꢀDIBOHF

Insulating Material

Device Labeling

.BSLFEꢀXJUIꢀ- ꢁꢀWPMUBHFꢁꢀ6-ꢇ$4"ꢀ-PHPTꢁꢀ

and date code

Solvent Resistance

Moisture Sensitivity

.*-o45%oꢈꢄꢈꢁꢀ.FUIPEꢀꢈꢃꢋ'

-FWFMꢀꢃꢁꢀ+o45%oꢄꢈꢄ$

C-IIIVaristor Series

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/c-iii.html for current information.

Revision: September 9, 2010

Varistor Products

Radial Lead Varistors > C-III series

AC Bias Reliability

The C-III Series MOVs were designed for use on the AC

line. The varistor is connected across the AC line and is

biased with a constant amplitude sinusoidal voltage. It

should be noted that the deﬁnition of failure is a shift in the

nominal varistor voltage (V_/ꢎꢀFYDFFEJOHꢀꢏꢇꢂꢃꢄꢐꢓꢀ"MUIPVHIꢀ

this type of varistor is still functioning normally after this

NBHOJUVEFꢀPGꢀTIJGUꢁꢀEFWJDFTꢀBUꢀUIFꢀMPXFSꢀFYUSFNJUJFTꢀPGꢀ7_/

tolerance will begin to dissipate more power.

HighTemperature Operating Life 125ºC for 1000 Hours

at Rated Bias

300

V130LA20C

250

200

150

100

#FDBVTFꢀPGꢀUIJTꢀQPTTJCJMJUZꢁꢀBOꢀFYUFOTJWFꢀTFSJFTꢀPGꢀ

statistically designed tests were performed to determine

the reliability of the C-III type of varistor under AC bias

combined with high levels of temperature stress. To

EBUFꢁꢀUIJTꢀUFTUꢀIBTꢀHFOFSBUFEꢀPWFSꢀꢋꢄꢁꢄꢄꢄꢀEFWJDFꢀIPVSTꢀPGꢀ

PQFSBUJPOꢀBUꢀBꢀUFNQFSBUVSFꢀPGꢀꢃꢈꢋ$ꢁꢀBMUIPVHIꢀPOMZꢀSBUFEꢀBUꢀ

ꢆꢋ$ꢓꢀ$IBOHFTꢀJOꢀUIFꢀOPNJOBMꢀWBSJTUPSꢀWPMUBHFꢁꢀNFBTVSFEꢀBUꢀ

ꢃN"ꢁꢀPGꢀMFTTꢀUIBOꢀꢈꢐꢀIBWFꢀCFFOꢀSFDPSEFEꢁꢀBTꢀEJTQMBZFEꢀJOꢀ

the diagram at right.

0

100 200 300 400 500 600 700 800 900 1000 1100

TIME (HOURS)

Figure 12

Transient Surge Current/EnergyTransient Capability

The transient surge rating serves as an excellent ﬁgure

of merit for the C-III varistor. This inherent surge handling

capability is one of the C-III varistor’s best features.

The enhanced surge absorption capability results from

improved process uniformity and enhanced construction.

The homogeneity of the raw material powder and

improved control over the sintering and assembly

processes are contributing factors to this improvement.

Typical Repetitive Surge Current Capability of

C-III Series MOVs

500

450

400

V130LA20C

3kA (8/20μs)

*OꢀUIFꢀMPXꢀQPXFSꢀ"$ꢀNBJOTꢀFOWJSPONFOUꢁꢀJOEVTUSZꢀ

TUBOEBSETꢀꢅ6-ꢁꢀ*&$ꢁꢀ/&."ꢀBOEꢀ*&&&ꢎꢀBMMꢀTVHHFTUꢀUIBUꢀUIFꢀ

worst case surge occurrence will be 3kA. Such a transient

event may occur up to ﬁve times over the equipment life

time (approximately 10 years). While the occurences of

mWFꢀꢉL"ꢀUSBOTJFOUTꢀJTꢀUIFꢀSFRVJSFEꢀDBQBCJMJUZꢁꢀUIFꢀSBUFEꢁꢀ

repetitive surge current for the C-III Series is 20 pulses

for the 20mm units and 10 pulses for the 14mm Series.

350

(RATED FOR 20 PULSES)

300

0

5

10

15

20

25

30

NUMBER OF SURGES

Figure 13

"TꢀBꢀNFBTVSFꢀPGꢀUIFꢀJOIFSFOUꢀEFWJDFꢀDBQBCJMJUZꢁꢀTBNQMFTꢀ

PGꢀUIFꢀꢈꢄNNꢀ7ꢃꢉꢄ-"ꢈꢄ$ꢀEFWJDFTꢀXFSFꢀTVCKFDUFEꢀUPꢀ

a worst case repetitive transient surges test. After 20

QVMTFTꢁꢀFBDIꢀPGꢀꢉL"ꢁꢀUIFSFꢀXBTꢀOFHMJHJCMFꢀDIBOHFꢀJOꢀ

the device characteristics. Changes in the clamping

WPMUBHFꢁꢀNFBTVSFEꢀBUꢀꢃꢄꢄ"ꢁꢀPGꢀMFTTꢀUIBOꢀꢉꢐꢀXFSFꢀ

SFDPSEFEꢁꢀBTꢀTIPXOꢀJOꢀUIFꢀVQQFSꢀEJBHSBNꢀBUꢀSJHIUꢓꢀ

600

550

500

V175LA20C

750A (8/20μs)

450

400

350

4BNQMFTꢀPGꢀUIFꢀꢈꢄNNꢀ4FSJFTꢀ7ꢃꢍꢋ-"ꢈꢄ$ꢀXFSFꢀTVCKFDUFEꢀ

UPꢀSFQFUJUJWFꢀTVSHFꢀPDDVSSFODFTꢀPGꢀꢍꢋꢄ"ꢓꢀ"HBJOꢁꢀUIFSFꢀXBTꢀ

negligible changes in any of the device characteristics

BGUFSꢀꢃꢈꢄꢀQVMTFTꢁꢀBTꢀTIPXOꢀJOꢀUIFꢀMPXFSꢀEJBHSBNꢀBUꢀSJHIUꢓꢀ

(RATED FOR 120 PULSES)

300

0

50

100

150

200

250

300

NUMBER OF SURGES

Figure 14

In both cases the inherent device capability is far

in excess of the expected worst case scenario.

C-IIIVaristor Series

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/c-iii.html for current information.

Revision: September 9, 2010

Varistor Products

Radial Lead Varistors > C-III series

Product Dimensions (mm)

ØD

A

SEATING

PLANE

*

A_TRIM

L_TRIM

25.4

(1.00)

Øb

CRIMPED AND TRIMMED LEAD

CRIMPED ANDTRIMMED LEADS

Radial lead types can be supplied with combination preformed

crimp and trimmed leads. This option is supplied to the

dimensions shown below.

e

e₁

E

ꢕ4FBUJOHꢀQMBOFꢀJOUFSQSFUBUJPOꢀQFSꢀ*&$ꢂꢊꢄꢍꢃꢍ

10mm Size

14mm Size

20mm Size

V_RMSVoltage

Model

Dimension

Min.

Max.

Min.

Max.

Min.

Max.

A

ØD

e

All

ꢃꢈꢓꢄꢀꢅꢄꢓꢑꢍꢈꢎ

ꢃꢄꢓꢄꢀꢅꢄꢓꢉꢌꢑꢎ

6.5 (0.256)

16.0 (0.630)

ꢃꢈꢓꢋꢀꢅꢄꢓꢑꢌꢈꢎ

ꢆꢓꢋꢀꢅꢄꢓꢉꢉꢋꢎ

13.5 (0.531)

6.5 (0.256)

ꢃꢓꢋꢀꢅꢄꢓꢄꢋ ꢎ

ꢈꢓꢋꢀꢅꢄꢓꢄꢌꢆꢎ

ꢈꢄꢓꢄꢀꢅꢄꢓꢍꢆꢍꢎ

ꢃ ꢓꢄꢀꢅꢄꢓꢊꢊꢌꢎ

ꢆꢓꢋꢀꢅꢄꢓꢉꢉꢋꢎ

ꢑꢓꢋꢀꢅꢄꢓꢃꢍꢍꢎ

ꢓꢋꢀꢅꢄꢓꢈꢌꢋꢎ

ꢃ ꢓꢋꢀꢅꢄꢓꢊꢆꢌꢎ

6.5 (0.256)

ꢃꢓꢋꢀꢅꢄꢓꢄꢋꢌꢎ

ꢈꢓꢋꢀꢅꢄꢓꢄꢌꢆꢎ

ꢈꢆꢓꢄꢀꢅꢃꢓꢃꢄꢈꢎ

ꢈꢉꢓꢄꢀꢅꢄꢓꢌꢄꢊꢎ

ꢆꢓꢋꢀꢅꢄꢓꢉꢉꢋꢎ

ꢑꢓꢋꢀꢅꢄꢓꢃꢍꢍꢎ

ꢓꢋꢀꢅꢄꢓꢈꢌꢋꢎ

All

130 - 320

>320

130 - 320

>320

130 - 625

>625

All

e₁

E

ꢃꢓꢋꢀꢅꢄꢓꢄꢋꢌꢎ

o

5.5 (0.216)

ꢓꢉꢀꢅꢄꢓꢈꢆꢍꢎ

o

11.0 (0.433)

ꢄꢓꢆꢊꢀꢅꢄꢓꢄꢉꢑꢎ

1.05 (0.041)

ꢉꢄꢓꢄꢀꢅꢃꢓꢃꢆꢎ

ꢑꢓꢊꢌꢀꢅꢄꢓꢃꢆꢋꢎ

ꢄꢓꢍꢊꢀꢅꢄꢓꢄꢉꢄꢎ

ꢄꢓꢌꢋꢀꢅꢄꢓꢄꢉꢍꢎ

o

Øb

ꢄꢓꢍꢊꢀꢅꢄꢓꢄꢉꢄꢎ

ꢄꢓꢆꢊꢀꢅꢄꢓꢄꢉꢑꢎ

ꢄꢓꢍꢊꢀꢅꢄꢓꢄꢉꢄꢎ

ꢄꢓꢆꢊꢀꢅꢄꢓꢄꢉꢑꢎ

A_TRIM

L_TRIM

o

ꢃꢌꢓꢋꢀꢅꢄꢓꢍꢊꢆꢎ

ꢑꢓꢊꢌꢀꢅꢄꢓꢃꢆꢋꢎ

o

ꢈꢉꢓꢋꢀꢅꢄꢓꢌꢈꢋꢎ

ꢑꢓꢊꢌꢀꢅꢄꢓꢃꢆꢋꢎ

All

ꢈꢓꢑꢃꢀꢅꢄꢓꢄꢌꢋꢎ

%JNFOTJPOTꢀBSFꢀJOꢀNJMMJNFUFSTꢀꢅJODIFTꢎ

1. 10mm lead spacing also available. See additional lead style options.

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C-IIIVaristor Series

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/c-iii.html for current information.

Revision: September 9, 2010

Varistor Products

Radial Lead Varistors > C-III series

Tape and Reel Speciﬁcations

tꢀ ꢅBWBJMBCMFꢀGPSꢀWPMUBHFꢀSBUJOHTꢀVQꢀUPꢀꢉꢈꢄ7ꢀPOMZꢎ

Model Size

10mm 14mm 20mm

Symbol

Description

$3*.1&%ꢀ-&"%4ꢀꢖ-5ꢖ

P

Pitch of Component

'FFEꢀ)PMFꢀ1JUDIꢀ

ꢈꢋꢓꢑꢀꢂꢇꢏꢃꢓꢄ

ꢃꢈꢓꢍꢀꢂꢇꢏꢀꢄꢓꢈ

ꢆꢓꢆꢋꢀꢂꢇꢏꢀꢄꢓꢆ

P₀

P₁

P

E

P2

DP

'FFEꢀ)PMFꢀ$FOUFSꢀUPꢀ1JUDIꢀ

DH

)PMFꢀ$FOUFSꢀUPꢀ$PNQPOFOUꢀ

Center

P₂

ꢃꢈꢓꢍꢀꢂꢇꢏꢀꢄꢓꢍ

F

-FBEꢀUPꢀ-FBEꢀ%JTUBODFꢀ

Component Alignment

Tape Width

ꢓꢋꢄꢀꢂꢇꢏꢀꢄꢓꢆ

2.00 Max

h

C

SEATING

PLANE

H1

W

W₀

W₁

W₂

ꢃꢆꢓꢈꢋꢀꢂꢇꢏꢀꢄꢓꢍꢋ

ꢃꢈꢓꢄꢀꢂꢇꢏꢀꢄꢓꢉ

ꢌꢓꢃꢈꢋꢀꢂꢇꢏꢀꢄꢓꢊꢈꢋ

0.5 Max

W0 W2 W1

H0

b

)PMEꢀ%PXOꢀ5BQFꢀ8JEUIꢀ

)PMFꢀ1PTJUJPOꢀ

W

)PMEꢀ%PXOꢀ5BQFꢀ1PTJUJPOꢀ

D0

t

)FJHIUꢀ'SPNꢀ5BQFꢀ$FOUFSꢀ5Pꢀ

Component Base

P1

F

H

ꢃꢌꢓꢄꢀꢂꢇꢏꢃꢓꢄ

H₀

H₁

4FBUJOHꢀ1MBOFꢀ)FJHIUꢀ

ꢃꢊꢓꢄꢀꢂꢇꢏꢀꢄꢓꢋ

46.5

36 Max 40 Max

Max

$PNQPOFOUꢀ)FJHIUꢀ

453"*()5ꢀ-&"%4ꢀꢖ-4ꢖ

D₀

t

'FFEꢀ)PMFꢀ%JBNFUFSꢀ

TotalTapeThickness

Component Alignment

6OEFSꢀDSJNQꢀ8JEUIꢀ

ꢑꢓꢄꢀꢂꢇꢏꢀꢄꢓꢈ

ꢄꢓꢍꢀꢂꢇꢏꢀꢄꢓꢈ

3° Max

P

E

P2

DP

DH

p

U

ꢆꢓꢄꢀ.BY

H1

W2 W1

W0

H

b

W

D0

t

P1

P0

F

6/%&3ꢂ$3*.1&%ꢀ-&"%4ꢀꢖ-6ꢖ

P

E

P2

DP

DH

U

H1

W2 W1

W0

Ho

b

W

D0

t

P1

P0

F

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/c-iii.html for current information.

C-IIIVaristor Series

Revision: September 9, 2010

Varistor Products

Radial Lead Varistors > C-III series

Part Numbering System

OPTION CODES

BASE PART CODES

(See notes below)

(See Ratings & Speciﬁcations tables and notes below)

P

XXXXX

V XXXX LA XX C

See OPTIONS CODES notes below

For “VARISTOR”

V

M(AC)

(Three or four digits -- 130V to 1,000V)

'PSꢀTUBOEBSEꢀQBSUTꢁꢀVTFꢀUIFꢀBASE PART designator only.

'PSꢀQBSUTꢀXJUIꢀOPOꢂTUBOEBSEꢀPQUJPOTꢀꢅTVDIꢀBTꢀBEEJUJPOBMꢀGPSNꢁꢀQBDLBHJOHꢀ

BOEꢀMFBEꢀTQBDFꢀPQUJPOTꢎꢁꢀVTFꢀBASE PART + OPTION CODE.

OPTION CODEꢀJUFNTꢀBSFꢀTVCKFDUꢀUPꢀBWBJMBCJMJUZꢀBOEꢀNJOJNVNꢀPSEFSꢀ

SFRVJSFNFOUTꢓꢀ1MFBTFꢀDPOUBDUꢀBꢀ-JUUFMGVTFꢀQSPEVDUTꢀSFQSFTFOUBUJWFꢀGPSꢀ

additional information or questions

SERIES + PACKAGING / LEAD STYLE

DESIGNATOR

(See BASE PART CODES notes below)

LA = Bulk Pack / Straight Leads (standard)

LC = Bulk Pack / Crimped and Trimmed Leads

LS = Tape and Reel / Straight Leads

LT = Tape and Reel / Crimped Leads

LU = Tape and Reel / Under-Crimped Leads

RELATIVE ENERGY INDICATOR

(One or Two Digits)

C-III SERIES DESIGNATOR

LEAD-FREE, HALOGEN-FREE AND

RoHS COMPLIANT INDICATOR

Ordering Notes:

BASE PART CODES:

OPTION CODES:

Series + Packaging / Lead Style Designators:

0SEFSJOHꢀFYBNQMFTꢒ

X10:ꢀꢃꢄ..ꢀ-&"%ꢀ41"$*/(ꢀ015*0/ꢀꢂꢂ

'PSꢀꢃꢄꢀꢅꢂꢇꢏꢃꢎNNꢀMFBEꢀTQBDJOHꢀꢅBWBJMBCMFꢀPOꢀꢈꢄNNꢀ

EJBNFUFSꢀNPEFMTꢀPOMZꢎꢁꢀBQQFOEꢀTUBOEBSEꢀNPEFMꢀ

#"4&ꢀ1"35ꢀOVNCFSꢀXJUIꢀꢖ9ꢃꢄꢓꢖꢀ&YBNQMFꢒ

Straight

Lead

Bulk Pack

(standard)

Crimped &

Trimmed

Lead

Straight

Lead

Tape & Reel

Under-Crimp

Lead

Tape & Reel

Bulk Pack

Standard Model

Order As

V130LA20CP V130LS20CP V130LC20CP V130LU20CP

7ꢃꢉꢄ-"ꢈꢄ$1

7ꢃꢉꢄ-"ꢈꢄ$1X10

$SJNQFEꢀMFBETꢀBSFꢀTUBOEBSEꢀPOꢀ-"ꢀ4FSJFTꢀWBSJTUPSTꢀTVQQMJFEꢀJOꢀ

UBQFꢀBOEꢀSFFMꢁꢀEFOPUFEꢀXJUIꢀꢖ-5ꢓꢖꢀꢀ

X2855:ꢀ/JDLFMꢀ#BSSJFSꢀ$0"5&%ꢀ8*3&ꢀ015*0/ꢀꢂꢂꢀ

"MMꢀTUBOEBSEꢀQBSUTꢀVTFꢀ5JOo$PBUFEꢀ$PQQFSꢀXJSFꢓꢀ/JDLFMꢀ

#BSSJFSꢀ$PBUFEꢀXJSFꢀJTꢀBWBJMBCMFꢀBTꢀBOꢀPQUJPOꢁꢀDPOTJTUJOHꢀ

PGꢀ$PQQFSꢀXJSFꢀXJUIꢀBꢀnBTIJOHꢀPGꢀ/JDLFMꢀGPMMPXFEꢀCZꢀ

a top coating ofTin. To order append standard model

#"4&ꢀ1"35ꢀOVNCFSꢀXJUIꢀꢖ9ꢈꢆꢋꢋꢓꢖꢀ&YBNQMFꢒ

ꢖ-$ꢖꢀTUZMFꢀJTꢀTVQQMJFEꢀJOꢀCVMLꢀPOMZꢓ

ꢖ-6ꢖꢀTUZMFꢀJTꢀTVQQMJFEꢀJOꢀUBQFꢀꢗꢀSFFMꢀPOMZꢓ

'PSꢀDSJNQFEꢀMFBETꢀXJUIPVUꢀUSJNNJOHꢀBOEꢀBOZꢀWBSJUJPOTꢀPUIFSꢀUIBOꢀ

UIBUꢀEFTDSJCFEꢀBCPWFꢁꢀQMFBTFꢀDPOUBDUꢀ-JUUFMGVTFꢓ

Standard Model

Order As

7ꢃꢉꢄ-"ꢈꢄ$1

7ꢃꢉꢄ-"ꢈꢄ$1X2855

Packaging and Quantities:

-JUUFMGVTFꢀ$ꢂ***ꢀ4FSJFTꢀWBSJTUPSTꢀBSFꢀTIJQQFEꢀTUBOEBSEꢀJOꢀCVMLꢀQBDLꢀ

with straight leads and lead spacing outlined in the Package

%JNFOTJPOTꢀTFDUJPOꢀPGꢀUIJTꢀEBUBꢀTIFFUꢓꢀ

X1347:ꢀ)Jꢂ5FNQFSBUVSFꢀQIFOPMJDꢀDPBUJOHꢀPQUJPOꢀꢂꢂꢀ

Phenolic Coated C-III Series devices are available with improved

maximum operating maximum temperature of 125°C.

5BQFꢀꢗꢀ3FFMꢀ2VBOUJUJFTꢒ

Quantity Per Reel

5PꢀPSEFSꢁꢀBEEꢀ9ꢃꢉꢑꢍꢀUPꢀFOEꢀPGꢀQBSUꢀOVNCFSꢀ

ꢅ&YBNQMFꢒꢀ7ꢈꢉꢄ-"ꢑꢄ$19ꢃꢉꢑꢍ).

Device Size

10mm

Voltage

"T" Reel

500

"S" Reel

500

"U"Reel

500

"--ꢀ

'PSꢀBEEJUJPOBMꢀJOGPSNBUJPOꢀQMFBTFꢀSFGFSꢀUPꢀUIFꢀTFDUJPOꢀMBCFMFEꢀ

ꢖ1IFOPMJDꢀ$PBUJOHꢀ0QUJPOꢖꢀPOꢀUIFꢀUIJSEꢀQBHFꢀPGꢀUIJTꢀEPDVNFOUꢀ

VOEFSꢀUIFꢀꢖ&MFDUSJDBMꢀ$IBSBDUFSJTUJDTꢖꢀUBCMFꢓ

õꢀꢈꢍꢋ7ꢀ

öꢀꢈꢍꢋ7ꢀ

õꢀꢈꢍꢋ7ꢀ

öꢀꢈꢍꢋ7ꢀ

500

400

500

400

500

400

500

400

500

400

500

400

14mm

20mm

C-IIIVaristor Series

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/c-iii.html for current information.

Revision: September 9, 2010


型号：	V385LA20CP
厂家：	LITTELFUSE
描述：	Radial Lead Varistors 径向引线压敏电阻压敏电阻
文件：	总10页 (文件大小：511K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

V385LA20CP [LITTELFUSE]

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