0273.250H Littelfuse Inc, 0273.250H Datasheet - Page 3

• Manufacturer Part Number: 0273.250H
• Description: MICROFUSE, FAST-ACTING .250A
• Manufacturer: Littelfuse Inc
• Series: MICRO™ 273r
• Type: Axial Lead and Cartridge Fusesr

Specifications of 0273.250H

• Fuse Type: Fast Acting
• Voltage - Rated: 125VAC, 125VDC
• Current: 250mA
• Package / Case: Radial
• Size / Dimension: 0.250" Dia x 0.350" L (6.35mm x 8.89mm)
• Mounting Type: Through Hole
• Operating Temperature: -55°C ~ 85°C
• Dc Cold Resistance: 1.75 Ohm
• Melting I²t: 0.0064
• Current Rating: 0.25 Amp
• Voltage Rating: 125 Volts
• Fuse Size / Group: Micro
• Termination Style: Solder Pin
• Body Material: Thermoplastic
• Dimensions: 8.89 mm L
• Product: Plug Fuse
• Interrupt Rating: 10 KAmps at 125 VoltsAC/DC
• Mounting Style: Through Hole
• Operating Temperature Range: - 55 C to + 85 C
• Resistance: 1.75 Ohms
• Brand/series: MICRO™ FUSE/273 Series
• Class: Supplemental
• Current, Rating: 0.25 A
• Current, Ratings: 1⁄4 A
• Dimension, Body: 0.25 in. Body Dia. x 0.35 in. Body Height
• Length, Lead: 0.17 in.
• Primary Type: Subminiature
• Resistance Dc: 1.75 Ohms
• Resistance, Dc: 1.75 Ohms
• Standards: UL Recognized File No E10480, CSA Certified File No LR 29862
• Termination: Plug-In
• Voltage, Rating: 125 VAC/VDC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Color: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 0273.250; 273.250; F860; H273.250

© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/272.html, /273.html, /274.html,
/278.html or /279.html for current information.
Operating Temperature:
Fuses to MIL SPEC
Materials
Product Marking
Product Characteristics
Part Numbering System
Packaging
Amp. Code
Packaging Code
Series
Packaging Option
V = 5
H = 100
Refer to Amp Code column of
Electrical Characteristics Table
Bulk
Bulk
0273 xxxx V
273 and 279: –55ºC to +85ºC;
272 and 278: –55ºC to +125ºC
273 Series is available in CSA LR
29862. Military QPL type (FM02).
To order, change 273 to 274.
272 and 278 series cap:
Nickel Plated Brass
273, 274 and 279 series cap:
Mirror polished Polycarbonate
Base: R-4 Ryton
Pins: Tin Plated Copper
Current and voltage ratings stamped
on cap
Packaging Specification
Radial Lead Fuses
MICRO™ > Very Fast-Acting > 272/273/274/278/279 Series
N / A
N / A
Revised: January 7, 2009
133
Dimensions
272 000 Series
(Short Lead, Metal Cap)
NOTE: Amperage and voltage rating stamped on cap.
Leads are tin plated copper; .025 diameter.
278 000 Series
(Long Lead, Metal Cap)
(Long Lead, Clear Plastic Cap)
273 000 and 274 000 Series
(Short Lead, Clear Plastic Cap)
279 000 Series
Quantity
(.235 )
(.235 )
(.25 )
(.25 )
5.97
6.35
6.35
5.97
100
5
(.29 )
(.29 )
7.30
(.35 )
7.30
(.35 )
8.89
8.89
Packaging Code
(.17 )
4.32
4.32
(.17 )
Quantity &
2.54 (.10 )
25.4 (1.0 )
25.4 (1.0 )
2.54 (.10 )
H
V
2.54 (.10 )
2.54 (.10 )
272/273/274/278/279 Series