MF-R250 Bourns Inc., MF-R250 Datasheet

MF-R250

Manufacturer Part Number

MF-R250

Description

FUSE PTC RESET 2.50A HOLD

Manufacturer

Bourns Inc.

Series

MF-Rr

Datasheet

1.MF-R110.pdf (6 pages)

Specifications of MF-R250

R Min/max

0.025 ~ 0.048 Ohm

Voltage - Max

30V

Time To Trip

10.3s

Current - Hold (ih) (max)

2.5A

Current - Trip (it)

Current - Max

40A

Package / Case

Radial

Holding Current

2.5A

Tripping Current

Initial Resistance Max

0.048ohm

Operating Voltage

30V

Ptc Fuse Case

Radial Lead

Initial Resistance Min

0.025ohm

Lead Spacing

5.1mm

Application

Almost anywhere there is a low Voltage power Supply and a load to be protected, including computers and peripherals, general electronics and automotive applications

Brand/series

MF-R Series

Current, Holding

2.50 A @ 23 °C

Current, Rating

40 A

Current, Ratings

40 A

Current, Tripping

5.00 A @ 23 °C

Dimensions

0.472x0.118x0.72 "

Mounting Type

PCB

Primary Type

Resettable

Resistance

0.025 Ohms @ 23 °C

Resistance, Dc

0.025 Ohms

Standards

UL Recognized, CSA Certified, TUV Certified

Temperature, Operating, Maximum

85 °C

Temperature, Operating, Minimum

-40 °C

Terminal Type

Radial Leaded

Termination

Radial

Thermistor Type

Resettable

Tripped Power Dissipation

1.20 W @ 23 °C

Voltage, Rating

30 VDC

External Depth

3mm

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Lead Free Status / RoHS Status

Lead free / RoHS Compliant, Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MF-R250

Manufacturer:

BOURNS

Quantity:

60 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

MF-R250

Manufacturer:

BOURNS/伯恩斯

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MF-R250-0-10

Manufacturer:

BOURNS

Quantity:

60 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MF-R250-0-10-2

Manufacturer:

BOURNS

Quantity:

40 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MF-R250-0-99

Manufacturer:

BOURNS

Quantity:

8 379

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MF-R250-2

Manufacturer:

BOURNS

Quantity:

40 000

Current page: 1 of 6
Download datasheet (194Kb)

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

Maximum Device Surface Temperature

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 ................................................ -40 °C to +85 °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

Test

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 ............................................... E 174545

CSA File Number ............................................. CA 110338

TÜV File Number ............................................. R2057213

*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.

Speciﬁ cations are subject to change without notice.

Customers should verify actual device performance in their speciﬁ c applications.

**CSA approval pending.

MF-R005**

MF-R010

MF-R017

MF-R020

MF-R025

MF-R030

MF-R040

MF-R050

MF-R065

MF-R075

MF-R090

MF-R090-0-9

MF-R110

MF-R135

MF-R160

MF-R185

MF-R250

MF-R250-0-10

MF-R300

MF-R400

MF-R500

MF-R600

MF-R700

MF-R800

MF-R900

MF-R1100

Test Procedures And Requirements For Model MF-R Series

Electrical Characteristics

Environmental Characteristics

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

Model

0 1 8

1 1 0

0 T

V max.

Volts

I max.

Amps

100

11.00

Ihold

Hold

Condition A

Test Conditions

0.05

0.10

0.17

0.20

0.25

0.30

0.40

0.50

0.65

0.75

0.90

1.10

1.35

1.60

1.85

2.50

3.00

4.00

5.00

6.00

7.00

8.00

9.00

Features

■

MF-R Series - PTC Resettable Fuses

Amperes

at 23 °C

Radial Leaded Devices

Cured, ﬂ ame retardant epoxy polymer

insulating material meets UL 94V-0

requirements

RoHS compliant*

Agency recognition:

10.00

12.00

14.00

16.00

18.00

22.00

Itrip

0.10

0.20

0.34

0.40

0.50

0.60

0.80

1.00

1.30

1.50

1.80

2.20

2.70

3.20

3.70

5.00

6.00

8.00

Trip

0.065

0.055

0.040

0.025

0.020

0.010

0.005

0.003

Min.

2.50

2.00

1.50

1.00

0.76

0.52

0.41

0.27

0.18

0.14

0.07

0.10

7.3

Resistance

at 23 °C

Ohms

Initial

0.115

0.105

0.048

Max.

11.1

4.50

3.20

2.84

1.95

1.36

0.86

0.77

0.48

0.40

0.31

0.12

0.18

0.07

0.05

0.03

0.02

0.01

1 Hour (R 1 )

Resistance

Post-Trip

at 23 °C

Accept/Reject Criteria

Ohms

0.014

Max.

22.0

7.50

8.00

4.40

3.00

2.10

1.29

1.17

0.72

0.60

0.47

0.22

0.27

0.17

0.15

0.11

0.07

0.08

0.05

0.04

0.03

0.02

Applications

Almost anywhere there is a low voltage power

supply and a load to be protected, including:

■

Computers & peripherals

General electronics

Automotive applications

Amperes

at 23 °C

0.85

1.25

3.25

3.75

6.75

9.25

12.5

15.0

20.0

25.0

30.0

35.0

40.0

45.0

40.0

0.5

1.0

1.5

2.0

2.5

4.5

5.5

8.0

Max. Time

to Trip

Seconds

at 23 °C

***20.0

10.3

10.8

12.7

14.5

16.0

17.5

18.8

20.0

5.0

4.0

3.0

2.2

2.5

3.0

3.8

4.0

5.3

6.3

7.2

5.9

6.6

7.3

8.0

8.7

***Tested at 40 amps

Dissipation

at 23 °C

Tripped

Power

Watts

0.22

0.38

0.48

0.40

0.45

0.50

0.55

0.75

0.90

1.00

0.60

0.70

0.80

0.90

1.00

1.20

2.00

2.50

3.00

3.50

3.80

4.00

4.20

4.50

Typ.

Related parts for MF-R250

MF-R250 Summary of contents

Page 1

... MF-R065 60 40 MF-R075 60 40 MF-R090 60 40 MF-R090-0 MF-R110 30 40 MF-R135 30 40 MF-R160 30 40 MF-R185 30 40 MF-R250 30 40 MF-R250-0- MF-R300 30 40 MF-R400 30 40 MF-R500 30 40 MF-R600 30 40 MF-R700 30 40 MF-R800 30 40 MF-R900 30 40 MF-R1100 16 100 **CSA approval pending. Environmental Characteristics Operating/Storage Temperature ...................... -40 °C to +85 °C Maximum Device Surface Temperature in Tripped State ............................................ 125 ° ...

Page 2

... Packaging options: BULK: All models = 500 pcs. per bag. TAPE & REEL: MF-R005-MF-R160 - 12.7 mm device pitch = 3000 pcs. per reel; MF-R185-MF-R400 - 25.4mm device pitch = 1500 pcs. per reel; MF-R250-0-10 = 1500 pcs. per reel. AMMO-PACK: MF-R005-MF-R160 - 12.7 mm device pitch = 2000 pcs. per reel; ...

Page 3

... MF-R135 1.96 / 3.92 1.76 / 3.52 MF-R160 2.32 / 4.64 2.08 / 4.16 MF-R185 2.68 / 5.36 2.41 / 4.82 MF-R250 3.63 / 7.26 3.25 / 6.50 MF-R250-0-10 3.63 / 7.26 3.25 / 6.50 MF-R300 4.35 / 8.70 3.90 / 7.80 MF-R400 5.80 / 11.6 5.20 / 10.4 MF-R500 7.25 / 14.5 6.50 / 13.0 MF-R600 8 ...

Page 4

... MF-R110-2-99.........Tape and reel packaging with part number sufﬁ x option MF-R090-0-9-99 .....Bulk packaging with part number sufﬁ x option MF-R250-0-10-99 ...Bulk packaging with part number sufﬁ x option *Packaged per EIA486-B Typical Part Marking: MF-R005 - R025 Represents total content. Layout may vary. PART ...

Page 5

... Device pitch: MF-R185–MF-R400, MF-RX110–MF-RX375 MF-R/600, MF-RX250/72–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 Speciﬁ cations are subject to change without notice. ...

Page 6

... MF-R, MF-R/90, MF-R/600, MF-RX, MF-RX/72 & MF-RX/250 Series Tape and Reel Speciﬁ cations Dimension Description Lead spacing: MF-R, MF-R/90, MF-R/600, MF-RX, MF-RX/72 Lead spacing: MF-RX/250 Reel width Reel diameter Space between ﬂ anges less device Arbor hole diameter Core diameter: MF-R, MF-RX, MF-R/90 ...

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