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:
Brand, Amperage Rating
-55°C to 125°C
A (10,000 ohms minimum)
(.057")
Packaging Specification
1.45
(.240")
F
1 A
Surface Mount Fuses
NANO
6.10
(.106")
2.69
T
2®
(.106")
> 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
Quantity
1000
0449 001. M R
Condition B, 5 cycles, -65°C to
125°C, 15 minutes @ each extreme
sawtooth wave 6ms duration, 3
Condition B (48hrs)
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