MF-RX/72 Series - PTC Resettable Fuses

Product Dimensions

Model

A

B

C

D

E

Physical Characteristics

Max.

Max.

Nom.

Tol. ±

Min.

Max.

Style

Lead Dia.

Material

MF-RX020/72

7.4

(0.291)

12.7

(0.5)

5.1

(0.201)

0.7

(0.028)

7.6

(0.30)

3.1

(0.122)

1

0.51

(0.020)

Sn/CuFe

MF-RX025/72

7.4

(0.291)

12.7

(0.5)

5.1

(0.201)

0.7

(0.028)

7.6

(0.30)

3.1

(0.122)

1

0.51

(0.020)

Sn/CuFe

MF-RX030/72

7.4

(0.291)

13.4

(0.528)

5.1

(0.201)

0.7

(0.028)

7.6

(0.30)

3.1

(0.122)

1

0.51

(0.020)

Sn/CuFe

MF-RX040/72

7.4

(0.291)

13.7

(0.539)

5.1

(0.201)

0.7

(0.028)

7.6

(0.30)

3.1

(0.122)

1

0.51

(0.020)

Sn/CuFe

MF-RX050/72

7.9

(0.311

13.7

(0.539)

5.1

(0.201)

0.7

(0.028)

7.6

(0.30)

3.1

(0.122)

1

0.51

(0.020)

Sn/Cu

MF-RX065/72

9.7

(0.382)

15.2

(0.598)

5.1

(0.201)

0.7

(0.028)

7.6

(0.30)

3.1

(0.122)

1

0.51

(0.020)

Sn/Cu

MF-RX075/72

10.4

(0.409)

16.0

(0.630)

5.1

(0.201)

0.7

(0.028)

7.6

(0.30)

3.1

(0.122)

1

0.51

(0.020)

Sn/Cu

MF-RX090/72

11.7

(0.461)

16.70

(0.657)

5.1

(0.201)

0.7

(0.028)

7.6

(0.30)

3.1

(0.122)

1

0.51

(0.020)

Sn/Cu

MF-RX110/72

10.84

(0.427)

16.84

(0.663)

5.1

(0.201)

0.7

(0.028)

7.6

(0.30)

3.1

(0.122)

2

0.81

(0.032)

Sn/Cu

MF-RX135/72

12.26

(0.483)

18.26

(0.719)

5.1

(0.201)

0.7

(0.028)

7.6

(0.30)

3.1

(0.122)

2

0.81

(0.032)

Sn/Cu

MF-RX160/72

13.94

(0.549)

19.94

(0.785)

5.1

(0.201)

0.7

(0.028)

7.6

(0.30)

3.1

(0.122)

2

0.81

(0.032)

Sn/Cu

MF-RX185/72

15.18

(0.598)

21.18

(0.834)

5.1

(0.201)

0.7

(0.028)

7.6

(0.30)

3.1

(0.122)

2

0.81

(0.032)

Sn/Cu

MF-RX250/72

17.84

(0.702)

23.84

(0.939)

10.2

(0.402)

0.7

(0.028)

7.6

(0.30)

3.1

(0.122)

2

0.81

(0.032)

Sn/Cu

MF-RX300/72

20.67

(0.814)

26.67

(1.050)

10.2

(0.402)

0.7

(0.028)

7.6

(0.30)

3.1

(0.122)

2

0.81

(0.032)

Sn/Cu

MF-RX375/72

23.51

(0.926)

29.51

(1.162)

10.2

(0.402)

0.7

(0.028)

7.6

(0.30)

3.1

(0.122)

2

0.81

(0.032)

Sn/Cu

A

E

B

D

C

Style 1

A

E

B

D

C

Style 2

NOTE: Straight

lead option (-17) is

also available, e.g.

MF-RX075/72-2-17.

(Refer to “How to

Order” section.)

DIMENSIONS:

MM

(INCHES)

Typical Part Marking

Represents total content. Layout may vary.

RX250

2180S

RX025

2A

MANUFACTURER'S

TRADEMARK

MANUFACTURER'S

TRADEMARK

PART

IDENTIFICATION

MANUFACTURING

LOCATION:

S = CHINA

PART

IDENTIFICATION

DATE CODE:

FIRST DIGIT =

LAST DIGIT

OF YEAR;

NEXT THREE DIGITS = DAY OF YEAR

DATE CODE:

WEEK 1 OF 2022 = 2A (YEAR & WEEK)

WEEK 27 OF 2022 = A2 (WEEK & YEAR)

Specifications are subject to change without notice.

Users should verify actual device performance in their specific applications.

The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of

this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

RX250

2180S

RX025

2A

MANUFACTURER'S

TRADEMARK

MANUFACTURER'S

TRADEMARK

PART

IDENTIFICATION

MANUFACTURING

LOCATION:

S = CHINA

PART

IDENTIFICATION

DATE CODE:

FIRST DIGIT =

LAST DIGIT

OF YEAR;

NEXT THREE DIGITS = DAY OF YEAR

DATE CODE:

WEEK 1 OF 2022 = 2A (YEAR & WEEK)

WEEK 27 OF 2022 = A2 (WEEK & YEAR)

MF-RX020/72~MF-RX025/72

MF-RX030/72~MF-RX375/72

NOTE: Kinked

lead option (-14) is

also available, e.g.

MF-RX250/72-2-14.

(Refer to “How to

Order” section.)