Download Datasheet


Bookmark and Share
Series: LA50QS
LA50QS Series - Very Fast-Acting Semiconductor Fuse
In response to new equipment requirements. Littelfuse’s LA50QS series fuses were developed to improve the overall performance of semiconductor fuses. The LA50QS provides the best protection features including lower l2t, longer life when subjected to cyclic loading and lower watts loss. LA50QS is today’s choice for the protection of dynamic solid state equipment.

Features:
  • Lowest l2t for greatest protection of semiconductor circuits.
  • Low watts loss for cooler operation.
  • Superior cycling ability gives an equipment design advantage.
  • State-of-the-art protection for 500 volt equipment.
  • Ultra compact sizes allow down-sizing of existing equipment.
Applications:
  • Protection of 500 volts or less solid state equipment such as motor drives, UPS, inverters, etc.


Electrical Characteristics

Access specifications, certifications, check availability and order parts below:

Check distributor stock availability by clicking on the [CHECK] link. View certification PDF files by clicking on the certification logo. View the part details by clicking on the part number. To order sample parts, click on the [ADD] link. Click on the 'Key' button to view definitions for each column header. Sort parts by clicking on the column you wish to sort by.


CatalogNo Certs. Amps (A) VAC (V) VDC (V) IR Stock Sample
Cart
LA50QS10-1 10 500 [Check] n/a
LA50QS100-4 100 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS100-4R 100 500 [Check] [Add]
LA50QS1000-4 1000 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS12-1 12 500 [Check] [Add]
LA50QS1200-4 1200 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS125-4 125 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS125-4R 125 500 [Check] [Add]
LA50QS15-1 15 500 [Check] [Add]
LA50QS150-4 150 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS150-4R 150 500 [Check] [Add]
LA50QS175-4 175 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS175-4R 175 500 [Check] [Add]
LA50QS20-1 20 500 [Check] [Add]
LA50QS200-4 200 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS200-4R 200 500 [Check] [Add]
LA50QS225-4 225 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS225-4R 225 500 [Check] [Add]
LA50QS25-1 25 500 [Check] [Add]
LA50QS250-4 250 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS250-4R 250 500 [Check] [Add]
LA50QS275-4R 275 500 [Check] [Add]
LA50QS30-1 30 500 [Check] [Add]
LA50QS300-4 300 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS300-4R 300 500 [Check] [Add]
LA50QS325-4R 325 500 [Check] [Add]
LA50QS35-4 35 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS35-4R 35 500 [Check] [Add]
LA50QS350-4 350 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS350-4R 350 500 [Check] [Add]
LA50QS40-4 40 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS40-4R 40 500 [Check] [Add]
LA50QS400-4 400 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS400-4R 400 500 [Check] [Add]
LA50QS450-4 450 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS50-4 50 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS50-4R 50 500 [Check] [Add]
LA50QS500-4 500 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS60-4 60 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS60-4R 60 500 [Check] [Add]
LA50QS600-4 600 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS70-4 70 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS70-4R
Obsolete: 2011-07-25 		500 500 [Check] [Add]
LA50QS700-4 700 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS80-4 80 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS80-4R 500 500 [Check] [Add]
LA50QS800-4 800 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS90-4 90 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]
LA50QS90-4R 500 500 [Check] [Add]
LA50QS900-4 900 500 500 100000A@500VDC
200000A@500VAC 		[Check] [Add]