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bourns
Authorized Distributor

Bourns Authorized Distributor

MF-RX300/72-0

PTC Resettable Fuse 3A(hold) 6A(trip) 72V 40A 2.8W 19.8s 0.04Ohm Radial 20.67 X 3.1 X 26.67mm Bag Automotive

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RoHS Compliant

BULK Packaging

Certificate of Compliance

Description +

PTC Resettable Fuse 3A(hold) 6A(trip) 72V 40A 2.8W 19.8s 0.04Ohm Radial 20.67 X 3.1 X 26.67mm Bag Automotive

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Search Keywords: MFRX300720

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Product Attribute

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Supplier:

Bourns
Part No:

MF-RX300/72-0
Unit of Measure:

Per Each
RoHS:

Yes
HTS:

8533408050
COO:

CN
ECCN:

EAR99
Supplier Standard Pack:

3000
Hold Current:

3 A
Trip Current:

6 A
Maximum Current Rating:

40 A
Maximum Voltage Rating:

72 V
Maximum Trip Time:

19.8@15A s
Minimum Initial Resistance:

0.04 Ohm
Maximum Initial Resistance:

0.06 Ohm
Package/Case:

N/A
Mounting:

Through Hole
Packaging:

Bag

Symbol, Footprint, 3D Model

Tools/3D Models +

EE ToolBox

Product Guides +

Datasheet

MDS/MF-R

MDS/MF-RX

Packaging Label/Label

CofC/MF

3rd Party Test Reports/6609_355_0866

Packaging Label/Label

3rd Party Test Reports/CE-2006-72269

MSL/See Note

Bourns Profile

Bourns Handbook

Component360: Bourns Multifuse® PPTC Resettable Fuses (MF USMF Series)

Learn more about Bourns® Multifuse® PPTC Resettable Fuses

Learn more about Bourns® Industrial Automation Solutions with Resistors, Protection Devices and Magnetics

Learn more about Bourns® Industrial Automation Solutions with Resistors, Protection Devices and Magnetics

Frequently Asked Questions

What replaces MF-RX300/72-0?

The recommended replacement for MF-RX300/72-0 is MF-RX300/72-AP from Bourns, available from OnlineComponents.com.

Is MF-RX300/72-0 RoHS compliant?

Yes, MF-RX300/72-0 is RoHS compliant.

What is the lead time for MF-RX300/72-0?

The standard lead time for MF-RX300/72-0 is approximately 4 days. In-stock quantities ship from OnlineComponents.com.

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This product is discontinued, but still in stock.
This product is NOT RoHS Compliant. See alternative
Different product options available. See alternative
Different packaging options available. See alternative
Possible Replacement options available. See alternative
Item discontinued
End of Life: Final orders must be placed by
Item discontinued

This product is no longer being manufactured but there may be alternatives. We can help you, Contact Us.

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We’ll meet or beat any authorized competitor’s published price for this part.

In Stock: 11,534

Ships today, if you order in

On Order:

Manufacturer Stock:

0 can ship

Stock lot only:

Minimum Order Quantity:

MOQ for out of Stock Qty:

Order Increment:

Factory Lead-Time:

4 Weeks can ship 9/17/26

ADD TO CART

Your order may include a combination of full reels and cut tape depending on available stock.

Full Reels Only – Selecting this will hold your order for full reel fulfillment. Cut tape will not be substituted.

Price (USD)

A tariff of {0} may be applied if shipping to the United States.

Qty

Unit Price

$0.4977

500

$0.2587

1,000

$0.2562

3,000

$0.2537

6,000

$0.2531

9,000

$0.2524

12,000

$0.2518

27,000 +

$0.2512

Supplier's Standard Package

Standard Packaging

Standard packaging is the minimum package size OnlineComponents.com receives from the supplier. The minimum order quantity might be less than the supplier's standard packaging. The type of packaging (such as reel, tube, tray) may be subject to change when the product is divided into smaller quantities.

Reel Packaging

This product ships on a reel. Depending on the quantity ordered, you may receive full factory reels, cut tape (components on a strip cut from a reel), or a combination of both.

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Bourns Authorized Distributor

MF-RX300/72-0

Price (USD)

Standard Packaging

Reel Packaging

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