0440004. Fuses - 440 Series - Ceramic Base 1206-Size High I<sup>2</sup>t SMD Fuse

Part Number: 0440004.

Series: 440

440 Series Datasheet
Littelfuse_Fuse_440_Datasheet.pdf
(652,370 bytes)
Last Uploaded: June 27, 2011

440 Series - Ceramic Base 1206-Size High I²t SMD Fuse

The 440 Series is a 100% Lead-free, RoHS compliant and Halogen-free fuse series designed specifically to provide over-current protection to circuits that operate under high working ambient temperatures up to 150°C and high inrush currents.

The general design ensures excellent temperature stability and performance stability.

This high I²t fuse series is designed to have ultra high inrush current withstand capability to avoid nuisance fuse open.

Features

Operating Temperature from -55°C to +150°C

100% Lead-free and RoHS compliant

Suitable for both leaded and lead-free reflow / wave soldering

Ultra high I²t values

Applications

Automotive Electronics

LCD Displays

Servers

Notebook Computers

Printers

Scanners

Data Modems

Hard Disk Drives

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)	4
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)	32
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)	32
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	Fast-Acting (F)
Package Size/Form Factor Close Info	Package Size	1206 (3216)
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)	2.601
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)	0.0152
Close Info	Interrupt Rating	50A@32VDC
Close Info	Interrupt Rating	50A@32VAC
Nominal Power Dissipation (W) Close Info	Nominal Power Dissipation (W)	0.284
Nominal Voltage Drop (mV) Close Info	Nominal Voltage Drop (mV)	70.88
Operating Temperature (deg C) Close Info	Operating Temperature (deg C)	-55�C - + 150�C
Moisture Sensitivity Level Close Info	Moisture Sensitivity Level	IPC/JEDEC J-STD-020C LEVEL 1
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	S
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 Body

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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: 2009-01-01 00:00:00
PbFree Date: 2009-01-01 00:00:00
ICP Test Reports
ICPTest 440.pdf
ICPTest 440 -0.25A-1.5A-.pdf
ICPTest 440 -1.75A � 8A-.pdf
China RoHS Reports
ChinaRoHS 440.pdf
ChinaRoHS 440xxx Series -0.25A � 1.5A-.pdf

	CSA_1422 30-029862 7/27/11 CSA_142230-0298623.pdf (180 K)
	UL_JDYX2.E10480 12/21/11 UL_JDYX2.E10480.pdf (1,541 K)
	UL_JDYX8.E10480 4/29/11 UL_JDYX8.PDF (97 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