461 Series - TELELINK® Surge Tolerant Surface Mount Fuse

Littelfuse_Fuse_0461

The Littelfuse 461 Series TeleLink® Surface Mount, Surge Resistant Fuse, offers over-current protection for a wide range of telecom applications without requiring a series resistor. When used in conjunction with a Littelfuse SIDACtor® Transient Voltage Suppressor (TVS) or a GreentubeTM Gas Plasma Arrestor, this combination provides a compliant solution for standards and recommendations such as GR-1089–Core, TIA-968-A, UL/ EN/IEC 60950, and ITU K.20 and K.21. The coordination requirement contained in GR-1089–Core, and ITU K.20/21 may require a series of impedance devices.

Features:

  • Surface mount surge resistant Slo-Blo® fuse
  • Meet UL 60950 3rd Edition power cross requirements standard alone
  • Designed to allow compliance with Telcordia GR-1089-CORE and TIA- 968-A (formerly FCC Part 68) Surge Specifications
  • Provide coordinated protection with Littelfuse SIDACtor® Transient Voltage Suppressor (TVS)or a GreentubeTM Gas Plasma Arrestor, without series resistors
  • Designed to serve the requirements of a wide range of telecommunication and networking equipment
  • 2A rating has improved temperature rise performance under 2.2A surge current testing when compared with 1.25A rating
  • Product is Halogen Free and RoHS compliant and compatible with leadfree solder and higher temperature profiles when ordered with Standard Silver Plated Brass Caps
  • Standard product is RoHS Compliant and compatible with lead-free solders and higher temperature profiles

Applications:

  • T1/E1/J1 and HDSL2/4
  • SLIC interface portion of Fiber to the Curb (FTTC) and Fiber to the Premises (FTTP)
  • Non-Fiber SLIC interface for Central Office (CO) locations and Remote Terminals (RT)
  • xDSL applications such as ADSL, ADSL2+, VDSL, and VDSL2+
  • Ethernet 10/100/1000BaseT
  • POTS applications such as modems, answering machines, telephones, fax machines, and security systems
  • ISDN “U” interface
  • Baystation T1/E1/J1, T3 (DS3) trunk cards

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)VDC (V)VAC (V)Nominal Melting I2T (A2sec)Resistance
(Ω)
Interrupting RatingBodyMin Operating Temp °CMax Operating Temp (°C)Marking CodeStockSamplesCompare
0461.5000.51006000.840.5660A@600VACCeramic-55125LF 500mA TCheckOrder
0461002210060017.50.04560A@600VACCeramic-55125LF 2A TCheckOrder
04611.251.2510060016.50.10460A@600VACCeramic-55125LF 1.25A TCheckOrder
Catalog # Certificates
Sorting icon
0461.500 URcsa
0461002 URcsa
04611.25 URcsa

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Littelfuse_Phils_ISO9001_102407icon Philipines ISO 90012000

PhilsISO14001Certificateicon Phils ISO 14001 2004