Littelfuse LR Series Manual de usuario descargar pdf (Pagina 2)

114

Revised: June 4, 2010

POLYFUSE

Resettable PTCs

LR Series

Axial Lead Battery Strap Type > LR Series

Speciﬁcations are subject to change without notice.

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

Ambient Operation Temperature

-40°C -20°C 0°C 23°C 40°C 50°C 60°C 70°C 85°C

Part Number Hold Current (A)

15LR190 2.80 2.50 2.30 1.90 1.60 1.50 1.40 1.20 1.00

15LR190S 2.80 2.50 2.30 1.90 1.60 1.50 1.40 1.20 1.00

15LR260 3.80 3.40 3.10 2.60 2.20 2.00 1.90 1.70 1.40

15LR260S 3.80 3.40 3.10 2.60 2.20 2.00 1.90 1.70 1.40

15LR380 5.50 4.90 4.40 3.80 3.30 3.00 2.80 2.50 2.10

20LR450 6.50 5.80 5.30 4.50 3.90 3.60 3.30 2.90 2.50

20LR550 8.00 7.10 6.20 5.50 4.70 4.30 4.00 3.60 3.00

20LR600 8.70 7.80 7.10 6.00 5.20 4.70 4.40 3.90 3.30

20LR730 10.60 9.50 8.60 7.30 6.30 5.70 5.40 4.70 4.00

Temperature Rerating

Temperature Rerating Curve

-40 -30 -20 -10 0 10 20 30 40 50607080

10%

30%

50%

70%

90%

110 %

130%

150%

170%

Temperature (°C)

Percentage of Rated Current

15LR190

15LR190S

15LR260

Line/Part Number:

15LR380

15LR550

15LR600

20LR730

• 15LR260

• 15LR260S

• 15LR450

Average Time Current Curves

The average time current curves and Temperature Rerating curve performance is affected

by a number or variables, and these curves provided as guidance only. Customer must

verify the performance in their application.

0.01

0.1

1 10 100 1000

1.90 A

2.60 A

3.80 A

4.50 A

5.50 A

6.00 A

7.30 A

Time in Seconds

Current in Amperes

1 2 3 4

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Littelfuse LR Series Manual de usuario Pagina 2

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