MF-R400-2 is out of stock and can be placed on backorder.
Available Substitutes:

Parametric Equivalent


Bourns Inc.
In Stock: 0
Unit Price: $0.59000
Datasheet

Parametric Equivalent


Bourns Inc.
In Stock: 0
Unit Price: $0.95000
Datasheet

Parametric Equivalent


Bourns Inc.
In Stock: 0
Unit Price: $0.00000
Datasheet

Parametric Equivalent


Bourns Inc.
In Stock: 0
Unit Price: $0.56000
Datasheet

Parametric Equivalent


Bourns Inc.
In Stock: 0
Unit Price: $0.35451
Datasheet

Parametric Equivalent


Bourns Inc.
In Stock: 0
Unit Price: $0.36815
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Direct


Littelfuse Inc.
In Stock: 1,080
Unit Price: $0.64000
Datasheet

Direct


Littelfuse Inc.
In Stock: 0
Unit Price: $0.78000
Datasheet

Parametric Equivalent


Littelfuse Inc.
In Stock: 0
Unit Price: $1.20000
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Parametric Equivalent


Littelfuse Inc.
In Stock: 0
Unit Price: $0.99000
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Parametric Equivalent


Eaton - Electronics Division
In Stock: 0
Unit Price: $0.57000
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Parametric Equivalent


Eaton - Electronics Division
In Stock: 0
Unit Price: $0.24178
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Parametric Equivalent


Eaton - Electronics Division
In Stock: 0
Unit Price: $0.86000
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Parametric Equivalent


Eaton - Electronics Division
In Stock: 0
Unit Price: $0.52317
Datasheet
Polymeric PTC Resettable Fuse 30V 4 A 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 30V 4 A Ih Through Hole Radial, Disc
Basics of NTC and PTC Thermistors - Another Teaching Moment

MF-R400-2

DigiKey Part Number
118-MF-R400-2TR-ND - Tape & Reel (TR)
118-MF-R400-2CT-ND - Cut Tape (CT)
Manufacturer
Manufacturer Product Number
MF-R400-2
Description
PTC RESET FUSE 30V 4A RADIAL
Manufacturer Standard Lead Time
4 Weeks
Customer Reference
Detailed Description
Polymeric PTC Resettable Fuse 30V 4 A Ih Through Hole Radial, Disc
Datasheet
 Datasheet
EDA/CAD Models
MF-R400-2 Models
Product Attributes
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Category
Resistance - Initial (Ri) (Min)
10 mOhms
Manufacturer
Bourns Inc.
Resistance - Post Trip (R1) (Max)
50 mOhms
Series
Operating Temperature
-40°C ~ 85°C
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Mounting Type
Through Hole
Part Status
Active
Package / Case
Radial, Disc
Type
Polymeric
Size / Dimension
0.567" L x 0.118" W (14.40mm x 3.00mm)
Voltage - Max
30V
Height - Seated (Max)
0.976" (24.80mm)
Current - Hold (Ih) (Max)
4 A
Lead Spacing
0.201" (5.10mm)
Current - Trip (It)
8 A
Approval Agency
cURus, TUV
Current - Max
40 A
Base Product Number
Time to Trip
12.7 s
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (20)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
MF-R400Bourns Inc.0MF-R400-ND$0.59000Parametric Equivalent
MF-R400-0-14Bourns Inc.0118-MF-R400-0-14-ND$0.95000Parametric Equivalent
MF-R400-0-15Bourns Inc.0MF-R400-0-15-ND$0.00000Parametric Equivalent
MF-R400-2-14Bourns Inc.0118-MF-R400-2-14TR-ND$0.56000Parametric Equivalent
MF-R400-APBourns Inc.0MF-R400-AP-ND$0.35451Parametric Equivalent
In-Stock: 0
1,500 estimated in stock on 20-Nov-2026
Request Stock Notification
All prices are in USD
Cut Tape (CT)
QuantityUnit PriceExt Price
1$0.38000$0.38
5$0.37000$1.85
10$0.35800$3.58
50$0.30100$15.05
100$0.24990$24.99
250$0.22720$56.80
500$0.20000$100.00
Tape & Reel (TR)
QuantityUnit PriceExt Price
1,500$0.25973$389.60
3,000$0.23933$717.99
4,500$0.22809$1,026.40
7,500$0.21462$1,609.65
10,500$0.20614$2,164.47
15,000$0.20000$3,000.00
Tariff Status: Tariff may apply if shipping to the United States. Estimated tariff costs will be calculated and displayed in the shopping cart to help you assess potential expenses.