当前位置：文档库 › V300LA20AP中文资料

V300LA20AP中文资料

w w w.l i t t e l f u s e.c o m

Varistor Products

LA Varistor Series

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

? Lead-free and RoHS compliant option available.Please see the device and ratings specifications table for more information.

? Energy Absorption Capability (W TM ) ....................Up to 360J ? Wide Operating Voltage Range

V M(AC)RMS .....................................130V to 1000V ? No Derating Up to 85o C Ambient ? Available in Tape and Reel or Bulk Pack

AGENCY APPROVALS:Standard and Lead-free parts recognized under

the components program of Underwriters Laboratories.Certified by CSA,VDE and CECC.

AGENCY FILE NUMBERS:UL E75961, E56529(Lead-free pending),

E135010 (Lead-free pending);CSA LR91788;VDE 116895E;CECC 42201-006.

ALSO SEE LITTELFUSE ULTRAMOV ?

AND C-III VARISTOR SERIES

RoHS

NEW LEAD-FREE AND RoHS COMPLIANT PARTS

AVAILABLE

w w w.l i t t e l f u s e.c o m

V A R I S T O R P R O D U C T S

Varistor Products

LA Varistor Series

Line Voltage Operation,Radial Lead

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 1000V DC Voltage Range (V M(DC)). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175 to 1200V

Transients:

Peak Pulse Current (I TM )

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

For 10/1000μs Current Wave (W TM ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 to 360J Operating Ambient Temperature Range (T A ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 850

C Storage Temperature Range (T STG ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 1250C Temperature Coefficient (V) of Clamping Voltage (V C ) at Specified Test Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.01%/0C Hi-Pot Encapsulation (Isolation Voltage Capability) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2500

(Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301)

Insulation Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000M ?

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

RoHS

w w w.l i t t e l f u s e.c o m

Varistor Products

Line Voltage Operation,Radial Lead

LA Varistor Series

Device Ratings and Specifications (Continued)

V250LA2725022503302112003544737301090V250LA4725042503302112003544296501090V250LA1010250L 25033040250035442965025220V250LA20A 14250L2025033072450035442965050500V250LA40A 20250L4025033013065003544296501001000V250LA40B 20250L40B 25033013065003544136201001000V275LA2727522753692312003895157751080V275LA4727542753692312003894737101080V275LA1010275L 27536945250038947371025200V275LA20A 14275L2027536975450038947371050450V275LA40A 20275L402753691406500389473710100900V275LA40B 20275L40B 2753691406500389453680100900V300LA2730023004052512004205658701070V300LA4730043004052512004205177751070V300LA1010300L 30040546250042051777525180V300LA20A 14300L2030040577450042051777550400V300LA40A 20300L403004051656500420517775100800V320LA7732073204202512004625658501065V320LA1010320L 32042048250046256585025170V320LA20A 14320L2032042080450046256585050380V320LA40B 20320L403204201506500462540810100750V385LA77385738550527120055868210251060V385LA1010385L 385505512500558682102525160V385LA20A 14385L20385505854500558682102550360V385LA40B 20385L4038550516065005586821025100700V420LA77420742056030120061074811201055V420LA1010420L 420560552500610748112025140V420LA20A 14420L20420560904500610748112050300V420LA40B 20420L4042056016065006107201060100600V460LA77460746061537120070285811301055V480LA774807480640351200670825124010 50V480LA1010480L 480640602500670825124025120V480LA40A 14480L404806401054500670825124050270V480LA80B 20480L8048064018065006707901160100550V510LA1010510L 510675632500735910135025100V510LA40A 14510L405106751104500735910135050250V510LA80B 20510L8051067519065007358601280100500V575LA1010575L 575730652500805100015002590V575LA40A 14575L4057573012045008051000150050220V575LA80B 20575L8057573022065008059601410100450V625LA1010625L 625825672500900110016502580V625LA40A 14625L4062582512545009001100165050210V625LA80B

625L80

625

825

230

6500

9001100

1650

100

425

PART NUMBER MODEL SIZE DISC DIA. (mm)MAXIMUM RATING (85o

SPECIFICATIONS (25o C)

CONTINUOUS TRANSIENT

VARISTOR VOLT -AGE AT 1mA DC

TEST CURRENT MAXIMUM CLAMPING VOLTAGE 8 x 20μs TYPICAL CAPACI-TANCE f = 1MHz

V RMS V DC ENERGY 10 x 1000μs

PEAK

CURRENT 8 x 20μs

V M(AC)V M(DC)W TM I TM V NOM MIN

V NOM MAX

V C I PK C (V)(V)(J)(A)(V)

(V)

(A)(pF)PART NUMBER LEAD-FREE AND RoHS COMPLIANT MODELS STANDARD

MODELS

Pb RoHS BRANDING BRANDING V250LA2P P2502V250LA4P P2504V250LA10P P250L V250LA20AP P250L20V250LA40AP P250L40V250LA40BP P250L40B V275LA2P P2752V275LA4P P2754V275LA10P P275L V275LA20AP P275L20V275LA40AP P275L40V275LA40BP P275L40B V300LA2P P3002V300LA4P P3004V300LA10P P300L V300LA20AP P300L20V300LA40AP P300L40V320LA7P P3207V320LA10P P320L V320LA20AP P320L20V320LA40BP P320L40V385LA7P P3857V385LA10P P385L V385LA20AP P385L20V385LA40BP P385L40V420LA7P P4207V420LA10P P420L V420LA20AP P420L20V420LA40BP P420L40V460LA7P P4607V480LA7P P4807V480LA10P P480L V480LA40AP P480L40V480LA80BP P480L80V510LA10P P510L V510LA40AP P510L40V510LA80BP P510L80V575LA10P P575L V575LA40AP P575L40V575LA80BP P575L80V625LA10P P625L V625LA40AP P625L40V625LA80BP

P625L80

RoHS

w w w.l i t t e l f u s e.c o m

Varistor Products

LA Varistor Series

Line Voltage Operation,Radial Lead

Device Ratings and Specifications (Continued)

Power Dissipation Ratings

Should transients occur in rapid succession, the average 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 Device Ratings and Specifications table for the specific device.The operating values of a MOV need to be derated at high temperatures as shown in Figure 1.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.

1009080706050403020100AMBIENT TEMPERA TURE (o C)

P E R C E N T O F R A T E D V A L U E

FIGURE 1.CURRENT, ENERGY AND POWER DERA TING

CURVE

FIGURE 2.PEAK PULSE CURRENT TEST WA VEFORM

O P E R C E N T O F P E A K V A L U E

O 1 = Virtual Origin of Wave

T = Time From 10% to 90% of Peak T 1 = Virtual Front time = 1.25 ? t

T 2 = Virtual Time to Half Value (Impulse Duration)Example:For an 8/20μs Current Waveform:8μs = T 1 = Virtual Front Time

20μs = T 2 = Virtual Time to Half Value

RoHS

Varistor Products

Line Voltage Operation,Radial Lead

LA Varistor Series

Transient V-I Characteristics Curves

FIGURE 3.CLAMPING V OL TAGE FOR V130LA1(P) - V300LA2(P) FIGURE 4.CLAMPING V OL TAGE FOR V130LA2(P) - V300LA4(P) FIGURE 5.CLAMPING V OL TAGE FOR V320LA7(P) - V480LA7(P) FIGURE 6.CLAMPING V OL TAGE FOR V130LA5(P) - V420LA10(P) FIGURE 7.CLAMPING V OL TAGE FOR V300LA10(P) - V660LA10(P) FIGURE

8.CLAMPING

V OL TAGE

FOR

V130LA10A(P) - V320LA20A 200

900

800

700

600

500

400

300

10101010101010

(

)

PEAK AMPERES (A)

1010101010101010

(

)

PEAK AMPERES (A)

4,000

3,000

2,000

1,000

900

800

700

600

500

400

300

200

100

10101010101010

PEAK AMPERES (A)

(

)

200

6,000

5,000

4,000

3,000

1,000

900

800

700

600

500

400

300

10101010101010

(

)

PEAK AMPERES (A)

2,000

10 10101010101010

PEAK AMPERES (A)

(

)

200

900

800

700

600

500

400

300

10101010101010

(

)

PEAK AMPERES (A)

10 Pb

RoHS

60w w w.l i t t e l f u s e.c o m

w w w.l i t t e l f u s e.c o m

V A R I S T O R P R O D U C T

Varistor Products

LA Varistor Series

Line Voltage Operation,Radial Lead

FIGURE 9.CLAMPING V OL TAGE FOR V385LA20A (P)-V1000LA80A (P)

FIGURE 10.CLAMPING V OL TA GE FOR V130LA20A (P) - V275LA40A (P)

(P)

FIGURE 13.CLAMPING V OL TAGE FOR V300LA40A - V1000LA160B

10101010101010M A X I M U M P E A K V O L T S (V )

PEAK AMPERES (A)

10103,000

2,000

1,000

900800700600500400300

20010101010101010M A X I M U M P E A K V O L T S (V )

PEAK AMPERES (A)

10M A X I M U M P E A K V O L T S (V )

10101010101010PEAK AMPERES (A)

10Transient V-I Characteristics Curves (Continued)

RoHS

w w w.l i t t e l f u s e.c o m

Varistor Products

Line Voltage Operation,Radial Lead

LA Varistor Series

Pulse Rating Curves

FIGURE 14.SURGE CURRENT RA TING CURVES FOR

V130LA1(P) - V480LA7(P)

FIGURE 15.SURGE CURRENT RA TING CURVES FOR

V130LA5(P) - V660LA10(P)

FIGURE 16.SURGE CURRENT RA TING CURVES FOR

V130LA10A(P) - V320LA20A(P)

FIGURE 17.SURGE CURRENT RA TING CURVES FOR

V385LA20A(P) - V1000LA80A(P)

FIGURE 18.SURGE CURRENT RA TING CURVES FOR

V130LA20A(P) - V320LA40B(P) FIGURE 19.SURGE CURRENT RA TING CURVES FOR

V385LA40B(P) - V1000LA160B(P)

100

1,000

10,000

IMPULSE DURA TION (μs)

S U R G E C U R R E N T (A )

IMPULSE DURA TION (μs)

S U R G E C U R R E N T (A )

5,000

2,0002001005020105

500IMPULSE DURA TION (μs)

S U R G E C U R R E N T (A )

V1000LA80A

1,000

10,0002,000

20010050201052500IMPULSE DURA TION (μs)

S U R G E C U R R E N T (A )

1,0005,000110,0002,000

20010050201052

500IMPULSE DURA TION (μs)

S U R G E C U R R E N T (A )

1,0005,0001

NOTE:If pulse ratings are exceeded, a shift of V N(DC)(at specified current) of more than ±10% could result.This type of shift, which normally results in a decrease of V N(DC),may result in the device not meeting the original published specifications, but does not prevent the device from continuing to function, and to provide ample protection.

RoHS

w w w.l i t t e l f u s e.c o m

V A R I S T O R P R O D U C T S

Varistor Products

Line Voltage Operation,Radial Lead

Tape and Reel Specifications

Crimped Leads "LT"Crimped Leads "LT"

Straight Leads "LS"

Under-crimped Leads "LU"

W2W0

P DP

H 0

?D0

H 1

SEATING PLANE

P1P1

DH W1

W2P DP

H 0

?D0

H 1

SEATING PLANE

W2P DP

?D0

H 1

P1P2

W0P1

W2W0P DP

?D0

H 1

DH E

W2W0P DP

?D0

H 1

Under-crimped Leads "LU"

DH E

W2P DP

?D0

H 1

W0P17mm Devices

10,14 and 20mm Devices

LA Varistor Series

RoHS

w w w.l i t t e l f u s e.c o m

Varistor Products

SYMBOL

PARAMETER

MODEL SIZE

7mm 10mm 14mm 20mm P Pitch of Component 12.7 ± 1.025.4 ± 1.025.4 ± 1.025.4 ± 1.0P 0Feed Hole Pitch

12.7 ± 0.212.7 ± 0.212.7 ± 0.212.7 ± 0.2P 1Feed Hole Center to Pitch 3.85 ± 0.78.85 ± 0.78.85 ± 0.78.85 ± 0.7P 2Hole Center to Component Center 6.35 ± 0.712.7± 0.712.7 ± 0.712.7± 0.7F Lead to Lead Distance 5.0 ± 0.87.5 ± 0.87.5 ± 0.87.5 ± 0.8h Component Alignment 2.0 Max 2.0 Max 2.0 Max 2.0 Max W Tape Width

18.0 + 1.018.0 - 0.518.0 + 1.018.0 - 0.518.0 + 1.018.0 - 0.518.0 + 1.018.0 - 0.5W 0Hold Down Tape Width 12.0 ± 0.312.0 ± 0.312.0 ± 0.312.0 ± 0.3W 1Hole Position

9.0 + 0.759.0 - 0.509.0 + 0.759.0 - 0.509.0 + 0.759.0 - 0.509.0 + 0.759.0 - 0.50W 2Hold Down Tape Position

0.5 Max 0.5 Max 0.5 Max 0.5 Max H Height from Tape Center to Component Base

18.0 + 2.018.0 - 0.018.0 + 2.018.0 - 0.018.0 + 2.018.0 - 0.018.0 + 2.018.0 - 0.0H 0Seating Plane Height 16.0 ± 0.516.0 ± 0.516.0 ± 0.516.0 ± 0.5H 1Component Height 32.0 Max 36.0 Max 40.0 Max 46.5 Max D 0Feed Hole Diameter 4.0 ± 0.2 4.0 ± 0.2 4.0 ± 0.2 4.0 ± 0.2t Total Tape Thickness 0.7 ± 0.20.7 ± 0.20.7 ± 0.20.7 ± 0.2U Under-crimp Width 8.0Max 8.0 Max p

Component Alignment

3o Max 1.00mm

3o Max

NOTE:Dimensions are in mm.

8.0Max 8.0Max LA Varistor Series

Tape and Reel Data

? Conforms to ANSI and EIA specifications ? Can be supplied to IEC Publication 286-2? Radial devices on tape are supplied with crimped leads, straight leads, or under-crimped leads

? 7mm parts are available on tape and reel up to 480 VAC only

? 10mm parts are available on tape and reel up to 510 VAC only

? 14mm and 20mm parts are available on tape and reel up to 550 VAC only

Line Voltage Operation,Radial Lead

RoHS

w w w.l i t t e l f u s e.c o m

Varistor Products

Line Voltage Operation,Radial Lead

LA Varistor Series

Tape and Reel Ordering Information

Standard Bulk Pack Quantity

NOTES:

1.Dimensions in millimeters, inches in parentheses.

2.10mm (9mm min, 11mm Max) ALSO AVAILABLE; See Additional Lead Style Options

3.1000V parts supplied with lead wire of diameter 1.00 ± 0.05 (0.039 ± 0.002).

RoHS

w w w.l i t t e l f u s e.c o m

Varistor Products

LA Varistor Series

Line Voltage Operation,Radial Lead

Additional Lead Style Options

Radial lead types can be supplied with combination preformed crimp and trimmed leads.This option is supplied to the dimensions shown.

*SEA TRIM

CRIMPED AND TRIMMED LEAD

SYMBOL

VARISTOR MODEL SIZE

7mm

10mm

14mm

20mm

MIN MAX MIN MAX MIN MAX MIN MAX A

--15(0.591)--19.5 (0.768)--22.5 (0.886)--29.0 (1.142)L TRIM

2.41 (0.095)

4.69 (0.185)

2.41 (0.095)

4.69 (0.185)

2.41 (0.095)

4.69 (0.185)

2.41 (0.095)

4.69 (0.185)

NOTE:Dimensions in millimeters, inches in parentheses.

? To order this crimped and trimmed lead style, standard radial type

model numbers are changed by replacing the model letter “A”with “C”.Example:

contact Littelfuse.

? For 10/±1mm lead spacing on 20mm diameter models only;append standard model numbers by adding “X10”.Example:

STANDARD CATALOG

MODEL

ORDER AS:V130LA20A

V130LA20AX10

SERIES DESIGNATOR/

LEAD STYLE DESIGNATOR LC =Crimped and Clipped LS =Straight LT =Crimped

LU =Under Crimped

Other Options

Base Part #

Ordering Information

LA series Varistors are shipped standard in bulk pack with straight leads and lead spacing outlined in the package dimensions on page 4-13.Contact your Littelfuse sales representative to discuss the non-standard options outlined below.

For Lead-free and RoHS compliant parts add the letter ‘P’after the base part number and before any option as shown in the ordering example below.

ex:V130LA2P

V420LA20APX1347

LA series varistors for Hi-Temperature operating conditions:

? Phenolic Coated LA Series devices are available with improved maxi-mum operating maximum temperature 125°C.

? These devices also have improved temperature cycling performance capability.

? Ratings and Specifications are as per standard LA Series except Hi-Pot encapsulation Isolation Voltage Capability = 500V .

? T o order:add X1347 to part number (e.g.V230LA20AX1347)? Marked identifier will contain 'P' to denote Phenolic.

? These devices are not UL, CSA, VDE or CECC certified.? Contact factory for further details.

RoHS