L25S Series - 250 Vac - Traditional Semiconductor Fuse

l25s fuses
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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.”

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.

  • 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.
  • 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
L25S001125025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S002225025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S003325025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S004425025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S005525025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S006625025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S008825025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S0101025025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S0121225025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S0151525025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S0202025025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S0252525025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S0303025025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S0353525025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S0404025025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S0454525025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S0505025025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S0606025025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S0707025025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S0808025025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S0909025025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S10010025025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S12512525025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S15015025025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S17517525025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S20020025025020000A@250VDCVery Fast-Acting (FF)CheckOrder
L25S200V200250Very Fast-Acting (FF)CheckOrder
L25S22522525020020000A@200VDCVery Fast-Acting (FF)CheckOrder
L25S25025025020020000A@200VDCVery Fast-Acting (FF)CheckOrder
L25S27527525020020000A@200VDCVery Fast-Acting (FF)CheckOrder
L25S30030025020020000A@200VDCVery Fast-Acting (FF)CheckOrder
L25S35035025020020000A@200VDCVery Fast-Acting (FF)CheckOrder
L25S40040025020020000A@200VDCVery Fast-Acting (FF)CheckOrder
L25S45045025020020000A@200VDCVery Fast-Acting (FF)CheckOrder
L25S50050025020020000A@200VDCVery Fast-Acting (FF)CheckOrder
L25S500KTA500250Very Fast-Acting (FF)Check
L25S60060025020020000A@200VDCVery Fast-Acting (FF)CheckOrder
L25S70070025020020000A@200VDCVery Fast-Acting (FF)CheckOrder
L25S80080025020020000A@200VDCVery Fast-Acting (FF)CheckOrder
L25S800KTA800250Very Fast-Acting (FF)Check
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
L25S030.T FUS 250V SEMICONDUCTOR 30A RoHS No 01/01/2007 PbFree No CoC_RoHS10_L25S030.T_5-16-2018 No
L25S035.T FUS 250V SEMICONDUCTOR 35A RoHS No 01/01/2007 PbFree No CoC_RoHS10_L25S035.T_5-15-2018 No
L25S060.T FUS 250V SEMICONDUCTOR 60A RoHS No 01/01/2007 PbFree No CoC_RoHS10_L25S060.T_5-16-2018 No
L25S600.V FUS 250V SEMICONDUCTOR 600A RoHS No 01/01/2007 PbFree No CoC_RoHS9_L25S600.V_10-19-2020 REACH209_Declaration_-Contain-_L25S600.V_10-19-2020 No
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