Figure B1 —Thermal Derating Curve

A = LR4

B = SRP

C = VTP, VLP, MXP

D = MGP

E = VLR

F = RSD

Table B3 — Electrical Characteristics

Part

Number

Max Time-to-trip

Figure for

Dimension

(A)

(A)

(A)

(W)

(A)

(s)

(Ω)

(Ω)

(Ω)

85°C Typical Activation

VLR*

VLR170F

1.70

4.1

12

100

1.4

8.50

5.0

0.018

0.032

0.064

B3

VLR175F

1.75

4.2

12

100

1.4

8.75

5.0

0.017

0.031

0.062

B3

VLR175LF

1.75

4.2

12

100

1.4

8.75

5.0

0.017

0.031

0.062

B3

VLR230F

2.30

5.0

12

100

2.5

10.00

5.0

0.012

0.018

0.036

B3

90°C Typical Activation

VLP*

VLP120UF

1.20

3.6

16

60

1.6

7.00

5.0

0.039

0.067

0.134

B5

VLP175UAF

1.75

3.9

16

60

1.8

8.75

5.0

0.023

0.041

0.082

B5

VLP210F

2.10

5.0

16

60

1.8

10.50

5.0

0.018

0.030

0.060

B2

VLP220F

2.20

5.3

16

60

1.8

11.00

5.0

0.017

0.029

0.058

B3

VLP270F

2.70

6.5

16

60

2.5

13.50

5.0

0.012

0.018

0.036

B3

VTP*

VTP110F

1.10

2.7

16

100

1.3

5.50

5.0

0.038

0.070

0.140

B5

VTP170F

1.70

3.4

16

100

1.4

8.50

5.0

0.030

0.052

0.105

B2

VTP170XSF

1.70

3.4

16

100

1.4

8.50

5.0

0.030

0.052

0.105

B4

VTP175F

1.75

3.6

16

100

1.4

8.75

5.0

0.029

0.051

0.102

B3

VTP175LF

1.75

3.6

16

100

1.4

8.75

5.0

0.029

0.051

0.102

B3

VTP210GF

2.10

4.7

16

100

1.5

10.00

5.0

0.018

0.030

0.060

B3

VTP210SF

2.10

4.7

16

100

1.5

10.00

5.0

0.018

0.030

0.060

B4

120°C Typical Activation

MXP*

MXP180

1.80

5.2

6

50

1.0

9.00

5.0

0.007

0.014

0.024

B10

MXP190BB

1.90

4.9

6

50

1.0

9.50

2.0

0.007

0.015

0.024

B9

MXP250K

2.50

6.2

6

50

1.0

13.50

2.0

0.006

0.016

0.028

B10

MXP270

2.70

6.2

6

50

1.0

13.50

2.0

0.006

0.015

0.026

B10

MXP310

3.10

9.0

6

50

1.3

17.50

5.0

0.003

0.012

0.018

B10

MXP370BD

3.70

9.0

6

50

1.3

18.50

5.0

0.004

0.010

0.016

B10

* Product electrical characteristics determined at 25°C.

Figure B1

200

180

160

140

120

100

80

60

40

20

0

A

B

C

Temperature (˚C)

-50-30

-40-10

-2020

10

040

30

60

50

80

70

90

D

E

A

B

C

D

E

F

F

RoHS Compliant, ELV Compliant

Specifications subject to change without notice. ©2016 Littelfuse, Inc.

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