LITTELFUSE 276030

Axial and Radial Lead Fuses
Subminiature
PICO® Fuse Very Fast-Acting Fuse 275L/276L Series
®
®
ELECTRICAL CHARACTERISTICS:
Opening
Time
100%
1/16-30
4 hours, Minimum
200%
1/16-10
5 second, Maximum
12-30
10 seconds, Maximum
AGENCY APPROVALS: Recognized under the Components
Program of Underwriters Laboratories and Certified by CSA.
AGENCY FILE NUMBERS: UL E10480, CSA LR 29862.
INTERRUPTING RATINGS:
300 amperes at rated VDC
50 amperes at rated VAC
ENVIRONMENTALSPECIFICATIONS:
Operating Temperature: –55°C to 125°C.
Shock: MIL-STD-202, Method 213, Test Condition I
(100 G’s peak for 6 milliseconds) and per method 2028 (78 G‘s
peak for 11 millseconds).
Vibration: MIL-STD-202, Method 204A; Test Condition D (vibrations of 10-2000 cps at 20 G‘s).
Insulation Resistance (After Opening): MIL-STD-202, Method
302, Test Condition A (1/2 Megohm minimum).
Moisture Resistance: MIL-STD-202, Method 106.
PHYSICALSPECIFICATIONS:
Materials: Pure tin coated copper wire leads.
Solderability: MIL-STD-202, Method 208.
Lead Pull Force: MIL-STD-202, Method 211, Test Condition A
(will withstand a 5 lb. axial pull test).
VARIATIONS IN DESIGN: Picofuses which differ from the standard versions as presented on this page can be provided for a
commercial or military use. One such design version is where
the picofuse terminates at one end of a pin for use as a single or
multi-pin connector. Extreme accuracy in blowing time at 300% or
more of rating, makes these picofuses suitable for use in circuits
where sequential switching or redundancy may be required. The
small size of the fuse, its non-hygroscopic characteristic and
infinitesimal weight makes it the ideal fuse for micro-electronic
circuits.
Average Time Current Curves
20A
25A
30A
Ampere
Rating
100
10
TIME IN SECONDS
% of Ampere
Rating
1
0.1
PATENTED
0.01
0.001
0.05 0.1
w w w. l i t t e l f u s e . c o m
1
10
100
CURRENT IN AMPERES
1000
Axial and Radial Lead Fuses
Subminiature
PICO® Fuse Very Fast-Acting Fuse 275L/276L Series
ORDERING INFORMATION:
275 000 Series
B
A
PART NUMBER
B
C
DIA.
3/4 A
E
Transparent
Insulating Sleeve
276 000 Series
AXIAL
LEADS
RADIAL
LEADS
AMPERE
RATING
VOLTAGE
RATING
AVERAGE COLD
RESISTANCE IN
OHMS
275 020
276 020
20
32
0.0031
275 025
276 025
25
32
0.0026
275 030
276 030
30
32
0.0020
A
C
DIA.
3/4 A
B
E
Transparent
Insulating Sleeve
D
Amperage
20 - 30
®
Dimensions in mm (inches)
E
D
A
B
C
7.87 38.1 3.38 10.72 1.016
(.31") (1.50") (.133") (.422") (.040")
w w w. l i t t e l f u s e . c o m
®