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HomeProductsCircuit ProtectionPTC Resettable FusesMF-R250
MF-R250 Image
Image may be representation.
See specifications for product details.

MF-R250 - Bourns Inc.

Manufacturer Part Number
MF-R250
Manufacturer
Bourns, Inc.
Allelco Part Number
32D-MF-R250
ECAD Model
Parts Description
PTC RESET FUSE 30V 2.5A RADIAL
Detailed Description
Package
Radial, Disc
Data sheet
Multifuse Product Guide.pdf
MF-R Series.pdf
RoHs Status
ROHS3 Compliant
In stock: 201830

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Quantity

Specifications

MF-R250 Tech Specifications
Bourns Inc. - MF-R250 technical specifications, attributes, parameters and parts with similar specifications to Bourns Inc. - MF-R250

Product Attribute Attribute Value  
Manufacturer Bourns, Inc.  
Voltage - Max 30V  
Type Polymeric  
Time to Trip 10.3 s  
Thickness (Max) -  
Size / Dimension 0.472" L x 0.118" W (12.00mm x 3.00mm)  
Series Multifuse®, MF-R  
Resistance - Post Trip (R1) (Max) 70 mOhms  
Resistance - Initial (Ri) (Min) 25 mOhms  
Ratings -  
Package / Case Radial, Disc  
Product Attribute Attribute Value  
Package Bulk  
Operating Temperature -40°C ~ 85°C  
Mounting Type Through Hole  
Lead Spacing 0.201" (5.10mm)  
Height - Seated (Max) 0.720" (18.30mm)  
Current - Trip (It) 5 A  
Current - Max 40 A  
Current - Hold (Ih) (Max) 2.5 A  
Base Product Number MF-R2  
Approval Agency cURus, TUV  

Parts Introduction

Manufacturer Part Number

MF-R250

Manufacturer

Bourns

Introduction

The Bourns MF-R250 is a polymeric positive temperature coefficient (PPTC) resettable fuse designed for overcurrent protection in a wide range of electronic applications. This device offers reliable and versatile circuit protection, ensuring the safety and reliability of your electronic equipment.

Product Features and Performance

Voltage rating up to 30V

Hold current of 2.5A and a trip current of 5A

Maximum current rating of 40A

Fast time to trip of 10.3 seconds

Initial resistance of 25mΩ and a post-trip resistance of 70mΩ

Operating temperature range of -40°C to 85°C

Product Advantages

Resettable design allows for easy circuit restoration after a fault condition

Compact and space-saving footprint

Robust construction for reliable performance

Compliance with cURus and TUV safety standards

Key Reasons to Choose This Product

Provides effective overcurrent protection for sensitive electronic circuits

Ensures the safety and reliability of your equipment

Easy integration into a wide range of applications

Cost-effective solution for circuit protection needs

Quality and Safety Features

Certified to cURus and TUV safety standards

Durable construction for reliable long-term performance

Compatibility

The Bourns MF-R250 is compatible with a wide range of electronic devices and can be easily integrated into various application areas.

Application Areas

Consumer electronics

Industrial equipment

Telecommunications systems

Automotive electronics

Power supplies

Industrial controls

Product Lifecycle

The Bourns MF-R250 is an active product and is currently available. There are equivalent or alternative models available from Bourns, such as the MF-R series. If you have any further questions or need assistance, please contact our sales team through our website.

Parts with Similar Specifications

The three parts on the right have similar specifications to Bourns Inc. MF-R250

Product Attribute MF-R250 MF-R400 MF-R700 MF-R135
Part Number MF-R250 MF-R400 MF-R700 MF-R135
Manufacturer Bourns Inc. Bourns Inc. Bourns Inc. Bourns Inc.
Base Product Number MF-R2 MF-R4 MF-R7 MF-R135
Series Multifuse®, MF-R Multifuse®, MF-R Multifuse®, MF-R Multifuse®, MF-R
Time to Trip 10.3 s 12.7 s 17.5 s 7.3 s
Ratings - - - -
Current - Trip (It) 5 A 8 A 14 A 2.7 A
Type Polymeric Polymeric Polymeric Polymeric
Voltage - Max 30V 30V 30V 30V
Lead Spacing 0.201" (5.10mm) 0.201' (5.10mm) 0.402' (10.20mm) 0.201' (5.10mm)
Package / Case Radial, Disc Radial, Disc Radial, Disc Radial, Disc
Mounting Type Through Hole Through Hole Through Hole Through Hole
Resistance - Initial (Ri) (Min) 25 mOhms 10 mOhms 5 mOhms 65 mOhms
Size / Dimension 0.472" L x 0.118" W (12.00mm x 3.00mm) 0.567' L x 0.118' W (14.40mm x 3.00mm) 0.870' L x 0.118' W (22.10mm x 3.00mm) 0.350' Dia x 0.118' T (8.90mm x 3.00mm)
Height - Seated (Max) 0.720" (18.30mm) 0.976' (24.80mm) 1.173' (29.80mm) 0.744' (18.90mm)
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Thickness (Max) - - - -
Resistance - Post Trip (R1) (Max) 70 mOhms 50 mOhms 30 mOhms 170 mOhms
Current - Hold (Ih) (Max) 2.5 A 4 A 7 A 1.35 A
Approval Agency cURus, TUV cURus, TUV cURus, TUV cURus, TUV
Package Bulk Bulk Bulk Bulk
Current - Max 40 A 40 A 40 A 40 A

MF-R250 Datasheet PDF

Download MF-R250 pdf datasheets and Bourns Inc. documentation for MF-R250 - Bourns Inc..

Datasheets
Multifuse Product Guide.pdf MF-R Series.pdf
Environmental Information
Bourns REACH.pdf MF-R Series Material Declaration.pdf RoHS MF-R, MF-RG, MF-RHT, MF-RM, MF-RX Series.pdf
PCN Design/Specification
MF Cert Mark Aug/2015.pdf
PCN Packaging
Revised MOQ,MULT 30/May/2018.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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MF-R250 Image

MF-R250

Bourns Inc.
32D-MF-R250

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