MF-SM050-2 is out of stock and can be placed on backorder.
Available Substitutes:

Direct


Littelfuse Inc.
In Stock: 0
Unit Price: $0.55000
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Littelfuse Inc.
In Stock: 0
Unit Price: $0.67000
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Littelfuse Inc.
In Stock: 0
Unit Price: $0.83000
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Littelfuse Inc.
In Stock: 0
Unit Price: $0.47000
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SCHURTER Inc.
In Stock: 0
Unit Price: $0.50000
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Excel Cell Electronic Co., Ltd.
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Unit Price: $0.30000
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Polymeric PTC Resettable Fuse 60V 500 mA Ih Surface Mount 2-SMD
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Polymeric PTC Resettable Fuse 60V 500 mA Ih Surface Mount 2-SMD
Basics of NTC and PTC Thermistors - Another Teaching Moment

MF-SM050-2

DigiKey Part Number
MF-SM050TR-ND - Tape & Reel (TR)
MF-SM050CT-ND - Cut Tape (CT)
MF-SM050DKR-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
MF-SM050-2
Description
PTC RESET FUSE 60V 500MA 2SMD
Manufacturer Standard Lead Time
4 Weeks
Customer Reference
Detailed Description
Polymeric PTC Resettable Fuse 60V 500 mA Ih Surface Mount 2-SMD
Datasheet
 Datasheet
EDA/CAD Models
MF-SM050-2 Models
Product Attributes
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Category
Resistance - Initial (Ri) (Min)
350 mOhms
Manufacturer
Bourns Inc.
Resistance - Post Trip (R1) (Max)
1.4 Ohms
Series
Operating Temperature
-40°C ~ 85°C
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Grade
Automotive
Part Status
Active
Qualification
AEC-Q200
Type
Polymeric
Mounting Type
Surface Mount
Voltage - Max
60V
Package / Case
2-SMD
Current - Hold (Ih) (Max)
500 mA
Size / Dimension
0.287" L x 0.214" W (7.31mm x 5.44mm)
Current - Trip (It)
1 A
Thickness (Max)
0.125" (3.18mm)
Current - Max
40 A
Approval Agency
cURus, TUV
Time to Trip
4 s
Base Product Number
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (6)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
SMD030F-2Littelfuse Inc.0SMD030F-2TR-ND$0.55000Direct
2920L050DRLittelfuse Inc.0F2866TR-ND$0.67000Similar
ASMD050F-2Littelfuse Inc.0ASMD050F-2TR-ND$0.83000Similar
SMD050F-2Littelfuse Inc.0SMD050F-2TR-ND$0.47000Similar
PFSM.050.2SCHURTER Inc.0486-1175-2-ND$0.50000Direct
In-Stock: 0
2,000 estimated in stock on 20-Nov-2026
Request Stock Notification
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$0.37000$0.37
5$0.36200$1.81
10$0.35000$3.50
50$0.29440$14.72
100$0.24440$24.44
250$0.22220$55.55
500$0.18888$94.44
1,000$0.16665$166.65
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
2,000$0.17864$357.28
4,000$0.16462$658.48
6,000$0.15689$941.34
10,000$0.14762$1,476.20
14,000$0.14178$1,984.92
20,000$0.13750$2,750.00
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.