*R

oH

S

**

CO

HA

LO & MP

LI

GE

AN

N

T

FR

EE

Features

n

72 V rated

n

Radial leaded devices

RX1

1

418 0

0S

Applications

Almost anywhere there is a low voltage power

supply, up to 72 V and a load to be protected,

including:

n

Security and fire alarm systems

n

Loudspeakers

n

Power transformers

n

Cured, flame retardant epoxy polymer

C

OM

PL

IA

N

insulating material meets UL 94 V-0

requirements

n

RoHS compliant* and halogen free**

n

Agency recognition:

T

Electrical Characteristics

V max.

Volts

72

I max.

Amps

40

LE

AD

F

RE

E

*R

oH

S

MF-RX/72 Series - PTC Resettable Fuses

Initial

Resistance

Ohms

at 23 °C

Min.

Max.

1.50

2.84

1.00

1.95

0.76

1.36

0.52

0.86

0.41

0.77

0.27

0.48

0.18

0.40

0.14

0.31

0.15

0.25

0.12

0.19

0.09

0.14

0.08

0.12

0.05

0.08

0.04

0.06

0.03

0.05

1 Hour (R1)

Post-Trip

Resistance

Ohms

at 23 °C

Max.

4.40

3.00

2.10

1.29

1.17

0.72

0.60

0.47

0.38

0.30

0.22

0.19

0.13

0.10

0.08

Max. Time

To Trip

Amperes

at 23 °C

1.0

1.25

1.5

2.0

2.5

3.25

3.75

4.5

5.5

6.75

8.0

9.25

12.5

15.0

18.75

Seconds

at 23 °C

2.2

2.5

3.0

3.9

4.0

5.3

6.3

7.2

8.2

9.6

11.4

12.6

15.6

19.8

24.0

Tripped

Power

Dissipation

Watts

at 23 °C

Typ.

0.40

0.45

0.50

0.55

0.75

0.90

1.00

1.50

1.70

1.90

2.10

2.50

2.80

3.20

Model

MF-RX020/72

MF-RX025/72

MF-RX030/72

MF-RX040/72

MF-RX050/72

MF-RX065/72

MF-RX075/72

MF-RX090/72

MF-RX110/72

MF-RX135/72

MF-RX160/72

MF-RX185/72

MF-RX250/72

MF-RX300/72

MF-RX375/72

Ihold

Itrip

Amperes

at 23 °C

Hold

Trip

0.20

0.40

0.25

0.50

0.30

0.60

0.40

0.80

0.50

1.00

0.65

1.30

0.75

1.50

0.90

1.80

1.10

2.20

1.35

2.70

1.60

3.20

1.85

3.70

2.50

5.00

3.00

6.00

3.75

7.50

Environmental Characteristics

Operating/Storage Temperature ........................... -40 °C to +85 °C

Maximum Device Surface Temperature

in Tripped State .................................................. 125 °C

Passive Aging ....................................................... +85 °C, 1000 hours ............................................... ±5 % typical resistance change

Humidity Aging...................................................... +85 °C, 85 % R.H. 1000 hours ............................. ±5 % typical resistance change

Thermal Shock ..................................................... +85 °C to -55 °C, 10 times .................................... ±10 % typical resistance change

Solvent Resistance ............................................... MIL-STD-202, Method 215 ................................... No change

Vibration ............................................................... MIL-STD-883C, Method 2007.1,........................... No change

Condition A

Test Procedures And Requirements For Model MF-RX/72 Series

Test

Test Conditions

Accept/Reject Criteria

Visual/Mech. ......................................................... Verify dimensions and materials ........................... Per MF physical description

Resistance ............................................................ In still air @ 23 °C ................................................. Rmin

≤

R

≤

Rmax

Time to Trip ........................................................... 5 times Ihold, Vmax, 23 °C ................................... T

≤

max. time to trip (seconds)

Hold Current ......................................................... 30 min. at Ihold ..................................................... No trip

Trip Cycle Life ....................................................... Vmax, Imax, 100 cycles ........................................ No arcing or burning

Trip Endurance ..................................................... Vmax, 48 hours..................................................... No arcing or burning

UL File Number .................................................... E174545

http://www.ul.com/ Follow link to Certifications, then UL File No., enter E174545

TÜV Certificate Number ....................................... R 02057213

http://www.tuvdotcom.com/ Follow link to “other certificates”, enter File No. 2057213

* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. ** Bourns considers a product to be “halogen free” if (a) the Bromine (Br)

content is 900 ppm or less;

(b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.

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.

Ro VE LEA

HS RS D

C ION FRE

OM S E

PL AR

IA E

NT

*

Additional Features

n

Resettable circuit protection

n

Bulk packaging, tape and reel and Ammo-Pak available on most models

MF-RX/72 Series - PTC Resettable Fuses

Product Dimensions

Model

MF-RX020/72

MF-RX025/72

MF-RX030/72

MF-RX040/72

MF-RX050/72

MF-RX065/72

MF-RX075/72

MF-RX090/72

MF-RX110/72

MF-RX135/72

MF-RX160/72

MF-RX185/72

MF-RX250/72

MF-RX300/72

MF-RX375/72

A

Max.

7.4

(0.291)

7.4

(0.291)

7.4

(0.291)

7.4

(0.291)

7.9

(0.311

9.7

(0.382)

10.4

(0.409)

11.7

(0.461)

10.84

(0.427)

12.26

(0.483)

13.94

(0.549)

15.18

(0.598)

17.84

(0.702)

20.67

(0.814)

23.51

(0.926)

B

Max.

12.7

(0.5)

12.7

(0.5)

13.4

(0.528)

13.7

(0.539)

13.7

(0.539)

15.2

(0.598)

16.0

(0.630)

16.70

(0.657)

16.84

(0.662)

18.26

(0.718)

19.94

(0.785)

21.18

(0.833)

23.84

(0.938)

26.67

(1.050)

29.51

(1.161)

Nom.

5.1

(0.201)

5.1

(0.201)

5.1

(0.201)

5.1

(0.201)

5.1

(0.201)

5.1

(0.201)

5.1

(0.201)

5.1

(0.201)

5.1

(0.201)

5.1

(0.201)

5.1

(0.201)

5.1

(0.201)

10.2

(0.402)

10.2

(0.402)

10.2

(0.402)

C

Tol. ±

0.7

(0.028)

0.7

(0.028)

0.7

(0.028)

0.7

(0.028)

0.7

(0.028)

0.7

(0.028)

0.7

(0.028)

0.7

(0.028)

0.7

(0.028)

0.7

(0.028)

0.7

(0.028)

0.7

(0.028)

0.7

(0.028)

0.7

(0.028)

0.7

(0.028)

D

Min.

7.6

(0.30)

7.6

(0.30)

7.6

(0.30)

7.6

(0.30)

7.6

(0.30)

7.6

(0.30)

7.6

(0.30)

7.6

(0.30)

7.6

(0.30)

7.6

(0.30)

7.6

(0.30)

7.6

(0.30)

7.6

(0.30)

7.6

(0.30)

7.6

(0.30)

E

Max.

3.1

(0.122)

3.1

(0.122)

3.1

(0.122)

3.1

(0.122)

3.1

(0.122)

3.1

(0.122)

3.1

(0.122)

3.1

(0.122)

3.1

(0.122)

3.1

(0.122)

3.1

(0.122)

3.1

(0.122)

3.1

(0.122)

3.1

(0.122)

3.1

(0.122)

Style

1

2

Physical Characteristics

Lead Dia.

Material

0.51

Sn/CuFe

(0.020)

0.51

Sn/CuFe

(0.020)

0.51

Sn/CuFe

(0.020)

0.51

Sn/CuFe

(0.020)

0.51

Sn/Cu

(0.020)

0.51

Sn/Cu

(0.020)

0.51

Sn/Cu

(0.020)

0.51

Sn/Cu

(0.020)

0.81

Sn/Cu

(0.032)

0.81

Sn/Cu

(0.032)

0.81

Sn/Cu

(0.032)

0.81

Sn/Cu

(0.032)

0.81

Sn/Cu

(0.032)

0.81

Sn/Cu

(0.032)

0.81

Sn/Cu

(0.032)

MM

(INCHES)

Packaging options:

DIMENSIONS:

500 pcs. per bag.

BULK:

TAPE & REEL: MF-RX020/72-2 ~ MF-RX090/72-2 = 3000 pcs. per reel; MF-RX110/72-2 ~ MF-RX160/72-2 = 1500 pcs. per reel;

MF-RX185/72-2 - MF-RX375/72-2 = 1000 pcs. per reel.

AMMO-PACK: MF-RX020/72-AP ~ MF-RX090/72-AP = 2000 pcs. per pack; MF-RX110/72-AP ~ MF-RX160/72-AP = 1000 pcs. per pack;

MF-RX185/72-AP - MF-RX375/72-AP = 500 pcs. per pack.

Style 1

A

E

Style 2

A

E

Typical Part Marking

How to Order

Represents total content. Layout may vary.

PART

IDENTIFICATION

MANUFACTURER'S

TRADEMARK

RX110

4180S

LOT NO.

(S = CHINA)

MF - RX 110/72 - 2 - 14

Multifuse

®

Product

Designator

Series

RX = Radial Leaded

Component

Hold Current, Ihold

020-375 (0.20 A - 3.75 A)

Maximum Voltage, Vmax

72 (72 Volts)

Packaging Options

- 0 = Bulk Packaging

- 2 = Tape and Reel*

- AP = Ammo-Pak*

B

DATE CODE

(FIRST DIGIT =

LAST DIGIT OF YEAR;

NEXT THREE DIGITS =

DAY OF YEAR)

D

C

Also available with kinked and straight leads in place

of standard leads (see How to Order).

Part Number Suffix Option

- 14 = Kinked Leads in Place of

Standard Straight Leads

- 17 = Straight Leads in Place of

Standard Kinked Leads

*Packaged per EIA 486-B

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.

MF-RX/72 Series - PTC Resettable Fuses

Typical Time to Trip at 23 ˚C

MF

-R

MF X020

-R

MF X025

-R

MF X030

-R

MF X040

-R

MF X050

-R

MF X065

-R

MF X075

-RX

090

MF

-R

MF X110

-R

/7

MF X135 2

-R

/7

MF X160 2

-RX /72

MF 185

-R

/7

MF X250 2

-RX /72

MF 300

-RX /72

375

/72

1000

100

Time to trip (Seconds)

Time to Trip (Seconds)

100

10

1

0.1

0.01

0.001

0.1

1

10

100

0.01

0.001

1

10

100

Fault Current (Amps)

The Time to Trip curves represent typical performance of a device in a simulated application environment. Actual performance in specific customer applications

may differ from these values due to the influence of other variables.

Thermal Derating Chart - Ihold (Amps)

Model

MF-RX020/72

MF-RX025/72

MF-RX030/72

MF-RX040/72

MF-RX050/72

MF-RX065/72

MF-RX075/72

MF-RX090/72

MF-RX110/72

MF-RX135/72

MF-RX160/72

MF-RX185/72

MF-RX250/72

MF-RX300/72

MF-RX375/72

-40

°C

0.31

0.39

0.47

0.62

0.78

1.01

1.16

1.40

1.71

2.09

2.48

2.87

3.88

4.65

5.81

-20

°C

0.27

0.34

0.41

0.54

0.68

0.88

1.02

1.22

1.50

1.84

2.18

2.52

3.40

4.08

5.10

0

°C

0.24

0.30

0.36

0.48

0.60

0.77

0.89

1.07

1.31

1.61

1.90

2.20

2.98

3.57

4.46

Ambient Operating Temperature

23

°C

40

°C

50

°C

0.20

0.16

0.14

0.25

0.20

0.18

0.30

0.24

0.22

0.40

0.32

0.29

0.50

0.41

0.36

0.65

0.53

0.47

0.75

0.61

0.54

0.90

0.73

0.65

1.10

0.89

0.79

1.35

1.09

0.97

1.60

1.30

1.15

1.85

1.50

1.33

2.50

2.03

1.80

3.00

2.43

2.16

3.75

3.04

2.70

60

°C

0.13

0.16

0.19

0.25

0.32

0.41

0.47

0.57

0.69

0.85

1.01

1.17

1.58

1.89

2.36

70

°C

0.11

0.14

0.16

0.22

0.27

0.35

0.41

0.49

0.59

0.73

0.86

1.00

1.35

1.62

2.03

85

°C

0.08

0.10

0.12

0.16

0.20

0.26

0.30

0.36

0.44

0.54

0.64

0.74

1.00

1.20

1.50

MF-RX/72 SERIES, REV. O 03/17

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.

MF-R, MF-R/90, MF-R/600, & MF-RX, & MF-RX/72 Series

Tape and Reel Specifications

Devices taped using EIA468–B/IEC286-2 standards. See table below and Figures 1 and 2 for details.

Dimension Description

Carrier tape width

Hold down tape width

Hold down tape

Top distance between tape edges

Sprocket hole position

Sprocket hole diameter

Abscissa to plane (straight lead)

Abscissa to plane (kinked lead)

Abscissa to top (straight lead)

Abscissa to top (kinked lead)

Overall width w/lead protrusion (straight lead)

Overall width w/lead protrusion (kinked lead)

Overall width w/o lead protrusion (straight lead)

Overall width w/o lead protrusion (kinked lead)

Lead protrusion

Protrusion of cutout

Protrusion beyond hold-down tape

Sprocket hole pitch

Pitch tolerance

Device pitch: MF-R005–MF-R160, MF-R/90,

MF-RX020/72–MF-RX030/72

Device pitch: MF-R185–MF-R400, MF-R/600, MF-RX110–MF-RX375

MF-RX040/72–MF-RX375/72

Tape thickness

Tape thickness with splice: MF-R010–MF-R160,

MF-RX110/72–MF-RX185/72

Tape thickness with splice: MF-R250–MF-R1100,

MF-RX110–MF-RX375, MF-R/90, MF-RX250/72-MF-RX375/72

Splice sprocket hole alignment

Body lateral deviation

Body tape plane deviation

Δ

h

Δ

p

Δ

h

Δ

p

t

t1

I1

L

I2

P0

W2

W1

D0

H

H0

H1

W6

W5

D0

H

H0

H1

C1

C2

L1

L

I2

P0

IEC

Mark

W

W0

EIA

Mark

W

W4

Dimensions

Tolerance

18

-0.5/+1.0

(.709)

(-0.02/+.039)

11

min.

(.433)

No protrusion

3

(.118)

9

(.354)

4

(.157)

18.5

(.728)

16

(.63)

38.0

(1.496)

32.2

(1.268)

55.0

(2.165)

43.2

(1.7)

54.0

(2.126)

42.5

(1.673)

1.0

(.039)

11

(.433)

Not specified

12.7

(0.5)

20 consecutive

12.7

(0.5)

25.4

(1.0)

0.9

(.035)

1.5

(.059)

2.3

(.091)

0

±0.3

(±.012)

±1

(±.039)

±0.3

(±.012)

±0.6

(±.024)

max.

±0.3

(±.012)

±1.0

(±.039)

±1.3

(±.051)

DIMENSIONS:

MM

(INCHES)

max.

-0.5/+0.75

(-0.02/+0.03)

±0.2

(±.0078)

±3.0

(±.118)

±0.5

(±.02)

max.

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.

MF-R, MF-R/90, MF-R/600, MF-RX, & MF-RX/72 Series

Tape and Reel Specifications

IEC

Mark

F

w

d

W1

f

h

EIA

Mark

F

W2

a

h

c

n

Dimensions

Tolerance

5.08

±0.2

(0.2)

(±0.008)

56.0

max.

(2.205)

370.0

max.

(14.57)

4.75

±3.25

(.187)

(±.128)

26.0

±12.0

(1.024)

(±.472)

80

max.

(3.15)

91

max.

(3.58)

62

355

345

nom.

(2.44) (14.0) (13.6)

64

372

362

max.

(2.52) (14.6) (14.25)

p

Dimension Description

Lead spacing: MF-R, MF-R/90, MF-R/600, MF-RX, MF-RX/72

Reel width

Reel diameter

Space between flanges less device

Arbor hole diameter

Core diameter: MF-R, MF-RX, MF-R/90

Core diameter: MF-R/600

Box: MF-R, MF-RX, MF-R/90

Box: MF-R/600

h

Consecutive missing places: MF-R, MF-RX, MF-R/90

3

p

max.

Consecutive missing places: MF-R/600

Empty places per reel: MF-R, MF-RX, MF-R/90

Empty places per reel: MF-R/600

H

1

Reference plane

P

1

F

L

A

B

H

0

W

0

W

1

W

p

I

2

H

1

L

H

1

none

Not specified

0.1 %

Taped Component Dimensions -

Figure 1

h

p

I

1

P

1

P

0

D

0

Reference plane

F

A

B

H

0

W

0

W

1

W

User direction of feed

Cross section A - B

H

1

H

t

I

2

I

1

P

0

D

0

User direction of feed

Cross section A - B

Reel Dimensions - Figure 2

t

Reel

h

d

f

Reel

h

MM

(INCHES)

User

direction

of

feed

Upper side

Tape

Lower side

h

w

DIMENSIONS:

Specifications are subject to change without notice.

User

Users should verify actual device performance in their specific applications.

d

direction

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.

of

feed

Lower side

Upper side

Tape

参数名称	属性值
是否无铅	不含铅
是否Rohs认证	符合
厂商名称	Bourns
包装说明	,
Reach Compliance Code	compliant
Factory Lead Time	4 weeks
Samacsys Confidence	4
Samacsys Status	Released
Samacsys PartID	890444
Samacsys Pin Count	2
Samacsys Part Category	Fuse
Samacsys Package Category	Other
Samacsys Footprint Name	MF-RX135/72-2-1
Samacsys Released Date	2018-10-17 17:05:14
Is Samacsys	N
其他特性	0.12 TO 0.19 OHMS AT 23 DEG CEL
JESD-609代码	e3
安装特点	THROUGH HOLE MOUNT
端子数量	2
最高工作温度	85 °C
最低工作温度	-40 °C
封装形状	RECTANGULAR PACKAGE
包装方法	TR
额定（AC）电压（URac）	72 V
额定功率耗散 (P)	1.7 W
电阻	1 Ω
电阻器类型	PTC RESETTABLE FUSE
表面贴装	NO
端子面层	Tin (Sn)
端子位置	RADIAL
端子形状	WIRE
热敏电阻器应用	OVERLOAD PROTECTION
Base Number Matches	1

MF-RX135/72-2

MF-RX135/72-2概述

MF-RX135/72-2规格参数

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