MF-RX040/72-0 is out of stock and can be placed on backorder.
Available Substitutes:

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Littelfuse Inc.
In Stock: 0
Unit Price: $0.57000
Datasheet
Polymeric PTC Resettable Fuse 72V 400 mA Ih Through Hole Radial, Disc
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Polymeric PTC Resettable Fuse 72V 400 mA Ih Through Hole Radial, Disc
Basics of NTC and PTC Thermistors - Another Teaching Moment

MF-RX040/72-0

DigiKey Part Number
MF-RX040/72-0-ND
Manufacturer
Manufacturer Part Number
MF-RX040/72-0
Description
PTC RESET FUSE 72V 400MA RADIAL
Manufacturer Standard Lead Time
4 Weeks
Customer Reference
Detailed Description
Polymeric PTC Resettable Fuse 72V 400 mA Ih Through Hole Radial, Disc
Datasheet
 Datasheet
EDA/CAD Models
MF-RX040/72-0 Models
Product Attributes
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Category
Resistance - Initial (Ri) (Min)
520 mOhms
Manufacturer
Bourns Inc.
Resistance - Post Trip (R1) (Max)
1.29 Ohms
Series
Operating Temperature
-40°C ~ 85°C
Packaging
Bulk
Mounting Type
Through Hole
Part Status
Active
Package / Case
Radial, Disc
Type
Polymeric
Size / Dimension
0.291" Dia x 0.122" T (7.40mm x 3.10mm)
Voltage - Max
72V
Height - Seated (Max)
0.539" (13.70mm)
Current - Hold (Ih) (Max)
400 mA
Lead Spacing
0.201" (5.10mm)
Current - Trip (It)
800 mA
Approval Agency
cURus, TUV
Current - Max
40 A
Base Product Number
Time to Trip
3.9 s
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (1)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
72R040XPRLittelfuse Inc.072R040XPRCT-ND$0.57000Similar
In-Stock: 0
500 estimated in stock on 18-Jan-2027
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All prices are in USD
Bulk
QuantityUnit PriceExt Price
1$0.75000$0.75
5$0.61800$3.09
10$0.57000$5.70
50$0.47300$23.65
100$0.43640$43.64
250$0.39232$98.08
500$0.36184$180.92
1,000$0.33363$333.63
5,000$0.27580$1,379.00
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