L15S Series - Traditional Semiconductor Fuse

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Designed to protect today’s equipment and systems, Littelfuse semiconductor fuses are manufactured with Littelfuse-developed technology that sets tomorrow’s standards for accuracy, consistent quality, reliability, and predictable performance. By using advanced metallurgical, polymer, and materials research; mathematical modeling, and computerized statistical analysis; Littelfuse engineers have redefined “State-of-the-Art.”

Applications
Designed specifically for supplementary protection of semiconducting devices such as silicon controlled rectifiers (SCR’s), diodes, thyristors, triacs, transistors, and similar solid-state devices. These devices are used in power equipment including variable speed drives, power rectifiers, UPS systems, DC power supplies, and in a wide range of electronic equipment. May be used wherever extremely fast-acting, current-limiting fuses with no time delay are required.

Safety
  • 200,000 A.I.R. — Reliable interruption of all overcurrents up to 200,000 amperes . . . meets present and future system requirements. (Note: L15S series has 100,000 A.I.R.)
  • Extremely Current Limiting — Low I2t and peak let-through currents meet most semiconductor requirements.UL Recognized — Littelfuse semiconductor fuses are recognized under the components program of Underwriters Laboratories, Inc., and carry the mark. UL Recognized semiconductor fuses may be used to provide supplementary protection in UL listed equipment.
Safety
  • Low Watt Losses — Means less heating and power consumption in circuit.
  • Controlled Transient Overvoltages — All circuits are subject to transient overvoltages during fault current interruption. These transient overvoltages (arc voltages) start when fuse links melt or circuit breaker contacts part, and subside when circuit is interrupted. Semiconductors are very sensitive to overvoltages. Littelfuse semiconductor fuse designs keep transient overvoltages to low levels and help reduce semiconductor failure.

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)VAC (V)VDC (V)Interrupting RatingOpeningStockSamplesCompare
L15S001115015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S002215015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S003315015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S004415015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S005515015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S006615015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S007715015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S008815015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S009915015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S0101015015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S0121215015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S0151515015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S0202015015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S0252515015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S0303015015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S0353515015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S0404015015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S040-10040150Very Fast-Acting (FF)CheckOrder
L15S0454515015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S0505015015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S050-10050150Very Fast-Acting (FF)CheckOrder
L15S0606015015020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S060-10060150Very Fast-Acting (FF)CheckOrder
L15S0707015010020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S0808015010020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S0909015010020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S10010015010020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S10001000150100100 kA @ 150 VacVery Fast-Acting (FF)CheckOrder
L15S125125150100100 kA @ 150 VacVery Fast-Acting (FF)CheckOrder
L15S15015015010020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S20020015010020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S25025015010020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S30030015010020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S35035015010020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S40040015010020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S400KTA150Very Fast-Acting (FF)Check
L15S45045015010020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S50050015010020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S60060015010020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
L15S80080015010020 kA @ 100 VdcVery Fast-Acting (FF)CheckOrder
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
L15S001.T FUS 150V SEMICONDUCTOR 1A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S002.T FUS 150V SEMICONDUCTOR 2A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S003.T FUS 150V SEMICONDUCTOR 3A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S004.T FUS 150V SEMICONDUCTOR 4A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S005.T FUS 150V SEMICONDUCTOR 5A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S006.T FUS 150V SEMICONDUCTOR 6A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S007.T FUS 150V SEMICONDUCTOR 7A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S008.T FUS 150V SEMICONDUCTOR 8A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S009.T FUS 150V SEMICONDUCTOR 9A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S010.T FUS 150V SEMICONDUCTOR 10A RoHS No 08/23/2006 PbFree No 08/23/2006 CoC_RoHS10_L15S010.T_08-10-2018 REACH191_Declaration_L15S010.T_08-10-2018 No
Does not Contain
L15S012.T FUS 150V SEMICONDUCTOR 12A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S015.T FUS 150V SEMICONDUCTOR 15A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S020.T FUS 150V SEMICONDUCTOR 20A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S025.T FUS 150V SEMICONDUCTOR 25A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S030.T FUS 150V SEMICONDUCTOR 30A RoHS No 08/23/2006 PbFree No 08/23/2006 CoC_RoHS10_L15S030.T_06-04-2020 REACH205_Declaration_L15S030.T_06-04-2020
Does not Contain
L15S035.T FUS 150V SEMICONDUCTOR 35A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S040.T FUS 150V SEMICONDUCTOR 40A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S040.TX100 FUS 150V SEMICONDUCTOR 40A 100A BODY RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S045.T FUS 150V SEMICONDUCTOR 45A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S050.T FUS 150V SEMICONDUCTOR 50A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S050.TX100 FUS 150V SEMICONDUCTOR 50A 100A BODY RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S060.T FUS 150V SEMICONDUCTOR 60A RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S060.TX100 FUS 150V SEMICONDUCTOR 60A 100A BODY RoHS No 08/23/2006 PbFree No 08/23/2006 No
L15S070.T FUS 150V SEMICONDUCTOR 70A RoHS No 08/23/2006 PbFree No No
L15S080.T FUS 150V SEMICONDUCTOR 80A RoHS No 08/23/2006 PbFree No No
L15S090.T FUS 150V SEMICONDUCTOR 90A RoHS No 08/23/2006 PbFree No No
L15S100.T FUS 150V SEMICONDUCTOR 100A RoHS No 08/23/2006 PbFree No No
L15S1000V FUS 150V SEMICONDUCTOR 1000A RoHS No 08/23/2006 PbFree No No
L15S125.T FUS 150V SEMICONDUCTOR 125A RoHS No 08/23/2006 PbFree No No
L15S150.T FUS 150V SEMICONDUCTOR 150A RoHS No 08/23/2006 PbFree No No
L15S200.T FUS 150V SEMICONDUCTOR 200A RoHS No 08/23/2006 PbFree No CoC_RoHS9_L15S200.T_09-12-2017 REACH191_Declaration_with_Pb_L15S200.T_09-03-2018 No
Contains
L15S250.T FUS 150V SEMICONDUCTOR 250A RoHS No 08/23/2006 PbFree No CoC_RoHS9_L15S250.T_09-03-2018 REACH191_Declaration_with_Pb_L15S250.T_09-03-2018 No
Contains
L15S300.T FUS 150V SEMICONDUCTOR 300A RoHS No 08/23/2006 PbFree No No
L15S350.T FUS 150V SEMICONDUCTOR 350A RoHS No 08/23/2006 PbFree No No
L15S400.T FUS 150V SEMICONDUCTOR 400A RoHS No 08/23/2006 PbFree No No
L15S450.T FUS 150V SEMICONDUCTOR 450A RoHS No 08/23/2006 PbFree No No
L15S500.V FUS 150V SEMICONDUCTOR 500A RoHS No 08/23/2006 PbFree No No
L15S600.V FUS 150V SEMICONDUCTOR 600A RoHS No 08/23/2006 PbFree No No
L15S800.V FUS 150V SEMICONDUCTOR 800A RoHS No 08/23/2006 PbFree No No
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