Littelfuse 461 Series - Manual

© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Surface Mount Fuses
Surge Resistant > 461 Series TeleLink ® Fuse
461 Series TeleLink ® Fuse
Description
Agency Approvals
Electrical Characteristics for Series
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 Greentube
TM 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 lead-
free 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
AgeNCy AgeNCy FIle NumbeR AmpeRe RANge
e10480 500mA - 2A
lR29862 500mA - 2A
% of Ampere
Rating
Opening Time
100% 4 hours, Minimum
250% 1 sec., Min.; 120 secs., Max.
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 Greentube TM 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.
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
Telecom Nano 2® Fuse Temperature Reading
04611.25 < 82°C (180°F)
0461002. < 50°C (122°F)
Maximum Temperature Rise
Higher Currents and PCB layout designs can affect this parameter.
Readings are measured at rated current after temperature stabilizes.
Additional Information
Datasheet Samples Resources