0448.500 Fuses - 448 Series - Lead-Free NANO<sup>2®</sup> Very Fast-Acting Subminiature Surface Mount Fuse

Part Number: 0448.500

Series: 448

448 Series Datasheet
Littelfuse_Fuse_448.pdf
(186,309 bytes)
Last Uploaded: October 10, 2011

448 Series - Lead-Free NANO^2® Very Fast-Acting Subminiature Surface Mount Fuse

The lead free Nano²® SMF Fuse is a very small, square surface mount fuse that is RoHS compliant and 100% Lead-Free. This product is fully compatible with lead-free solder alloys and higher temperature profiles associated with lead-free assembly.

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	VDC (V)	125
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)	125
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	Very Fast-Acting (FF)
Package Size/Form Factor Close Info	Package Size	6.10 x 2.69mm
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)	0.1
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)	0.38
Close Info	Interrupt Rating	50A@125VDC
Close Info	Interrupt Rating	50A@125VAC
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	500mA LF
Operating Temperature (deg C) Close Info	Operating Temperature (deg C)	-55�C - + 125�C

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Design Support

Certification

Plant Certifications

Philipines ISO 9001:2000
Littelfuse_Phils_ISO9001_102407.pdf (550 K)

Phils ISO 14001 2004
PhilsISO14001Certificate.pdf (22 K)

Environmental Data

Environmental Info

RoHS Date: 2005-07-14 00:00:00
PbFree Date: 2005-07-14 00:00:00
ICP Test Reports
ICPTest 448.pdf
China RoHS Reports
ChinaRoHS 448.pdf

	CSA_1422-01 029862 Jan. 31, 2011 CSA_1422-01029862.pdf (170 K)
	PSE Cert - no PDF nocertPSE.gif (0 K)
	UL_JDYX2.E10480 12/21/11 UL_JDYX2.E10480.pdf (1,541 K)

	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