0461.500 Fuses - 461 Series - TELELINK® Surge Tolerant Surface Mount Fuse

Part Number: 0461.500

Series: 461

Littelfuse Fuse 461 Series Data Sheet
Littelfuse_Fuse_461_Series.pdf
(165,148 bytes)
Last Uploaded: June 09, 2011

461 Series - TELELINK® Surge Tolerant Surface Mount Fuse

The Littelfuse 461 Series TeleLink® surface mount, surge tolerant 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 impedance device.

Features

RoHS Compliant.
Surface mount overcurrent protecting from power cross and allows compliance with lightning surges.
Meets UL 60950 3rd Edition (formerly UL 1459) power cross requirements stand alone.
Designed to allow compliance with Bellcore/Telcordia GR-1089-CORE and FCC 47 part 68 Surge Specifications.
Provides coordinated protection with Littelfuse SIDACtor® devices.
Ideal for use in telecommunication equipment including line cards, modems, fax machines, phones, answering machines, caller ID devices and other products connected to phone network.
2A rating has improved temperature rise performance under 2.2A surge current testing.

Help	Property	Value
It is established by Littelfuse as a value of current which the fuse, fuseholder, fuse clip or other fuse accessory can carry, based on a controlled set of test conditions. Close Info	Ampere Rating (A)	0.5
The maximum rms AC voltage and/or the maximum DC voltage at which the fuse is designed to operate. For example, fuses rated at 600 volts and below may be applied at any voltage less than their rating. There is no rule for applying AC fuses in DC circuits such as applying the fuse at half its AC voltage rating. Fuses used on DC circuits must have DC ratings. Close Info	VAC (V)	600
Refers to how rapidly the fuse responds to various current overloads. Fuse characteristics can be classified into three general categories: very fast-acting, fast-acting or Slo-Blo® (time delay)fuse. The distinguishing feature of Slo-Blo fuses is that these fuses have additional thermal inertia (surge withstand) designed to tolerate normal initial or start-up overload pulse. Close Info	Opening	Slo-Blo®/Time Lag (T)/Time Delay
Package Size/Form Factor Close Info	Package Size	10.10 x 3.12mm
RMS Surge (Non-repetitive) On-state Fusing Current- Measure of let-through energy in terms of current and time for fusing purposes. Close Info	Nominal Melting I²T (A²sec)	0.84
Cold resistance is the resistance obtained using a measuring current of no more than 10% of the fuse's nominal rated current. The factory should be consulted if this parameter is critical to the design in question. Close Info	Nominal Cold Resistance (Ohms)	0.56
Close Info	Interrupt Rating	60A@600VAC
The part of a fuse enclosing the fuse elements and supporting the contacts. Body is also referred to as cartridge, tube, or case. Close Info	Body	Ceramic
Color or Alpha-Numeric code used to define the amp rating of the device for ease-of-maintenance and quality checks. Close Info	Marking Code	LF 500mA T
Moisture Sensitivity Level Close Info	Moisture Sensitivity Level	TBD
Operating Temperature (deg C) Close Info	Operating Temperature (deg C)	-55�C - + 125�C

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Design Support

Application Circuits

Environmental Data

Environmental Info

RoHS Date: 2000-09-26 00:00:00
ICP Test Reports
ICPTest 461.pdf
China RoHS Reports
ChinaRoHS 461.pdf

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•	Cordless Phone : POTS & DSL Phone Lines
•	CPE Splitter : POTS & DSL Phone Lines
•	Digital Subscriber Line Access Multiplexer : "Exposed" Ethernet Ports
•	DSL Modem Router : "Exposed" Ethernet Ports
•	DSL Modem Router : POTS & DSL Phone Lines
•	Ethernet Router : "Exposed" Ethernet Ports
•	FAX / 56K Dial-Up Modem : POTS & DSL Phone Lines
•	SLIC Line Card : "Exposed" Ethernet Ports
•	SLIC Line Card : T3 / E3 / J3
•	T1/T3 Line Driver : T3/E3/DS3 Ports
•	VoIP Telephone Adapter : "Exposed" Ethernet Ports
•	VoIP Telephone Adapter : POTS & DSL Phone Lines

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	Philipines ISO 9001:2000 Littelfuse_Phils_ISO9001_102407.pdf (550 K)
	Phils ISO 14001 2004 PhilsISO14001Certificate.pdf (22 K)

Electrical Characteristics

Design Support

Environmental Data