0451.250MRL Littelfuse Inc, 0451.250MRL Datasheet - Page 4

• Manufacturer Part Number: 0451.250MRL
• Description: FUSE .250A 125V FAST NANO2 SMD
• Manufacturer: Littelfuse Inc
• Series: NANO²® 451r
• Type: Surface Mount Fusesr

Specifications of 0451.250MRL

• Fuse Type: Fast Acting
• Voltage - Rated: 125VAC, 125VDC
• Current: 250mA
• 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
• Dc Cold Resistance: 0.577 Ohm
• Melting I²t: 0.0158
• Current Rating: 0.25 Amp
• Voltage Rating: 125 Volts
• Fuse Size / Group: Nano
• Termination Style: SMD/SMT
• Body Material: Ceramic
• Dimensions: 6.1 mm L x 2.69 mm W
• Product: Surface Mount Fuse
• Interrupt Rating: 50 Amps
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 55 C to + 125 C
• Resistance: 1.05 Ohms
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS Compliant
• Color: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 0451.250MRL; F2572TR; R451.250L

451/453 Series
Product Characteristics
Materials
Product Marking
Operating
Temperature
Moisture Sensitivity
Level
Solderability
Insulation
Resistance
(after Opening)
Dimensions
Packaging
(.057")
(.077")
1.45
Recommended pad layout
1.96
Packaging Option
(.240")
F
(.270")
(.124")
7 A
(.116")
6.10
6.86
3.15
2.95
Body: Ceramic
Terminations:
-55°C to 125°C
A (10,000 ohms minimum)
(.106")
Introduction to Circuit Protection
NANO
2.69
Introduction to Circuit Protection
Packaging Specification
2®
(.106")
2.69
> Very Fast-Acting > 451/453 Series
Surface Mount Fuses
60
NOTE: “L ” suffix applies to 451 series only
Transientology
please use 451 series for ordering.
Part Numbering System
Thermal Shock
Mechanical Shock
Vibration
Moisture Resistance
Salt Spray
Resistance to Soldering
Heat
SERIES
AMP Code
QUANTITY Code
PACKAGING Code
RoHS Compliant & Halogen Free
characteristics table
Quantity
5000
1000
Condition B, 5 cycles, -65°C /
+125°C, 15 minutes @ each extreme
sawtooth wave 6ms duration, 3
Condition B (48hrs)
condition B (10 sec at 260°C)
0451 001. M R L
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/451.html
Packaging Code
or /453.html for current information.
Quantity &
© 2009 Littelfuse, Inc.