Littelfuse0438

Description:

　The 438 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 temperature up to 150ºC.

　The general design ensures excellent temperature stability and performance reliability.

　The high I²t values which is typical in the Littelfuse Ceramic Fuse family ensure high inrush current withstand capability.

Features:

• Operating Temperature from -55ºC to +150ºC	• Suitable for both leaded and lead-free reflow / wave soldering
• 100% Lead-free, RoHS compliant and Halogenfree

Applications:

• Handheld Electronics	• Hard Disk Drives
• LCD Displays	• SD Memory Cards
• Battery Packs

Ampere Rating (A)	Amp Code	Max Voltage Rating (V)	Interruping Rating	Nominal Resistance (Ohms)	Nominal Melting I²t (A²sec)	Nominal Voltage Drop At Rated Current （V）	Nominal Power Dissipation At Rated Current（W）
0.25	.250	63VDC	50A @63VDC 50A @32VAC	2.218	0.0017	0.550	0.138
0.375	.375	63VDC		1.247	0.0041	0.488	0.183
0.5	.500	63VDC		0.829	0.0100	0.486	0.243
0.75	.750	63VDC		0.466	0.0281	0.378	0.284
1.0	001.	63VDC		0.310	0.0593	0.351	0.351
1.25	1.25	63VDC		0.200	0.0510	0.365	0.456
1.5	01.5	63VDC		0.174	0.0902	0.368	0.552
1.75	1.75	63VDC		1.405	0.1440	0.360	0.540
2.0	002.	32	50A @32VDC/12VAC	0.051	0.1490	0.107	0.214
2.5	02.5	32		0.0324	0.1977	0.095	0.238
3.0	003.	32		0.0255	0.2922	0.093	0.279
3.5	03.5	32		0.0205	0.4752	0.082	0.287
4.0	004.	32		0.0170	0.6920	0.079	0.316
5.0	005.	32		0.0115	0.7398	0.074	0.370
6.0	006.	24	50A @24VDC/12VAC	0.0085	1.3838	0.072	0.430

JDTFUSE

Tag: Littelfuse0438

0438 Series Fast-Acting SMF

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