0449001.MR Littelfuse Inc, 0449001.MR Datasheet - Page 3

• Manufacturer Part Number: 0449001.MR
• Description: FUSE 125V TIME-LAG 1A SMD
• Manufacturer: Littelfuse Inc
• Series: NANO²® 449r

Specifications of 0449001.MR

• Fuse Type: Slow Blow, Time Lag
• Voltage - Rated: 125VAC
• Current: 1A
• Dc Cold Resistance: 0.252 Ohm
• Melting I²t: 1.76
• Package / Case: Non-Standard SMD
• Size / Dimension: 0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
• Mounting Type: Holder/Surface Mount
• Operating Temperature: -55°C ~ 125°C
• Current Rating: 1 Amp
• Voltage Rating: 125 Volts
• Fuse Size / Group: Nano
• Termination Style: SMD/SMT
• Body Material: Ceramic
• Product: Surface Mount Fuse
• Interrupt Rating: 50 Amps
• Color: -
• Voltage Rating Vac: 125V
• Voltage Rating Vdc: 125V
• Fuse Current: 1A
• Breaking Capacity: 50A @ 125VAC/VDC
• Blow Characteristic: Time Delay
• Fuse Case Style: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Color: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 449001.MR

© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/449.html for current information.
Product Characteristics
Materials
Product Marking
Operating
Temperature
Moisture
Sensitivity Level
Solderability
Insulation
Resistance (after
Opening)
Dimensions
Recommended pad layout
Packaging
(.077 )
1.96
12mm Tape and Reel
Packaging Option
(.270 )
(.124 )
(.116 )
6.86
3.15
2.95
Body: Ceramic
Terminations: Gold-plated Caps
Brand, Amperage Rating
-55°C to 125°C
Level 1, J-STD-020C
MIL -STD-202, Method 208
MIL -STD-202, Method 302, Test Condition
A (10,000 ohms minimum)
EIA RS-481-2 (IEC 286, part 3)
(.057 )
Packaging Specification
1.45
(.240 )
F
1 A
Surface Mount Fuses
NANO
6.10
(.106 )
2.69
T
2®
(.106 )
Revised: January 7, 2009
> Slo-Blo
2.69
55
®
Part Numbering System
Thermal Shock
Mechanical Shock
Vibration
Moisture Resistance
Salt Spray
Resistance to Soldering
Heat
> 449 Series
SERIES
AMP Code*
PACKAGING Code
QUANTITY Code
Refer to Electrical charac-
teristics table
M = 1000 pcs
R = Tape and Reel
Quantity
1000
0449 001. M R
MIL -STD-202, Method 107 , Test
Condition B, 5 cycles, -65°C to
125°C, 15 minutes @ each extreme
MIL -STD-202, Method 213, Test I:
Deenergized. 100G’s pk amplitude,
sawtooth wave 6ms duration, 3
cycles XYZ+xyz = 18 shocks
MIL -STD-202, Method 201: 0.03"
amplitude, 10-55 Hz in 1 min. 2hrs
each XYZ=6hrs
MIL -STD-202, Method 106, 10 cycles
MIL -STD-202, Method 101, Test
Condition B (48hrs)
MIL -STD-202, Method 210, Test
condition B (10 sec at 260°C)
*Example:
0.375 Amp product is 0449.375MR
(1 amp product shown above).
Packaging Code
Quantity &
MR
449 Series