Polymeric PTC Resettable Fuse 15V 1.9 A Ih User Defined Strap
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Polymeric PTC Resettable Fuse 15V 1.9 A Ih User Defined Strap
Building Automation – Protect/Sense/Control
Basics of NTC and PTC Thermistors - Another Teaching Moment

LR4-190F

DigiKey Part Number
LR4-190F-ND
Manufacturer
Manufacturer Product Number
LR4-190F
Description
PTC RESET FUSE 15V 1.9A STRAP
Manufacturer Standard Lead Time
17 Weeks
Customer Reference
Detailed Description
Polymeric PTC Resettable Fuse 15V 1.9 A Ih User Defined Strap
Datasheet
 Datasheet
Product Attributes
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Category
Current - Max
100 A
Manufacturer
Littelfuse Inc.
Time to Trip
5 s
Series
Resistance - Initial (Ri) (Min)
39 mOhms
Packaging
Bag
Resistance - Post Trip (R1) (Max)
102 mOhms
Part Status
Active
Operating Temperature
-40°C ~ 85°C
Type
Polymeric
Mounting Type
User Defined
Voltage - Max
15V
Package / Case
Strap
Current - Hold (Ih) (Max)
1.9 A
Size / Dimension
0.827" L x 0.205" W (21.00mm x 5.20mm)
Current - Trip (It)
3.9 A
Approval Agency
CSA, TUV, UL
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (12)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
MF-LR190Bourns Inc.4,806MF-LR190-ND$0.82000Direct
MF-SM250-2Bourns Inc.65,866MF-SM250TR-ND$0.49000Similar
MF-MSMF050-2Bourns Inc.51,976MF-MSMF050-2TR-ND$0.38000Similar
MF-SM200-2Bourns Inc.18,515MF-SM200TR-ND$0.49000Similar
MF-SM150-2Bourns Inc.8,594MF-SM150TR-ND$0.75000Similar
In-Stock: 1,656
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All prices are in USD
Bag
QuantityUnit PriceExt Price
1$0.81000$0.81
5$0.67400$3.37
10$0.62200$6.22
50$0.51620$25.81
100$0.47630$47.63
250$0.42812$107.03
500$0.39484$197.42
2,000$0.33544$670.88
6,000$0.30900$1,854.00
Tariff Status: Tariff may apply if shipping to the United States. Tariff costs are calculated and will be displayed in the shopping cart.