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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:
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• Surface mount surge resistant Slo-Blo® fuse |
• Designed to serve the requirements of a wide range of telecommunication and networking equipment |
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• Meet UL 60950 3rd Edition power cross requirements standard alone |
• 2A rating has improved temperature rise performance under 2.2A surge current testing when compared with 1.25A rating |
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• Designed to allow compliance with Telcordia GR-1089-CORE and TIA968-A (formerly FCC Part68) Surge Specifications |
• Product is Halogen Free and RoHS compliant and compatible with leadfree solder and higher temperature profiles when ordered with Standard Silver Plated Brass Caps |
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• Provide coordinated protection with Littelfuse SIDACtor® Transient Voltage Suppressor (TVS)or a GreentubeTM Gas Plasma Arrestor, without series resistors |
• Standard product is RoHS Compliant and compatible with lead-free solders and higher temperature profiles |
Applications:
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• T1/E1/J1 and HDSL2/4 |
• Ethernet 10/100/1000BaseT |
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• SLIC interface portion of Fiber to the Curb (FTTC) and Fiber to the Premises (FTTP) |
• POTS applications such as modems, answering machines, telephones, fax machines, and security systems |
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• Non-Fiber SLIC interface for Central Office (CO) locations and Remote Terminals (RT) |
• ISDN “U” interface |
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• xDSL applications such as ADSL, ADSL2+, VDSL, and VDSL2+ |
• Baystation T1/E1/J1, T3 (DS3) trunk cards |
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Ampere Rating(A)
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Amp Code
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Max Voltage Rating(V)
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Interruping Rating
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Nominal Cold Resistance(Ohms)
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Nominal Melting I²t(A²sec)
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Agency
Approvals |
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0.500
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.500 | 600 | 50A @ 250 VAC 60A @600 VAC 100A @80VDC |
0.560
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0.840¹
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×
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×
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1.25
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1.25
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600
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0.140
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16.5¹
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×
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×
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2.00
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002.
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600
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0.450
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17.5¹
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×
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×
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