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Axial and Radial Lead Fuses
Subminiature
PICO® Fuse Very Fast-Acting Fuse 275/276 Series
ELECTRICAL CHARACTERISTICS:
% of Ampere
Rating
Ampere
Rating
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 Certifi ed 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 (vibra-
tions 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: Solder-Coated Copper Leads. R
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 stan-
dard 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
infi nitesimal weight makes it the ideal fuse for micro-electronic
circuits.
PATENTED
®®
Average Time Current Curves
100
10
1
0.1
0.01
0.001
1/16A
0.05 0.1 1 10 100 1000
1/8A
1/4A
3/8A
1/2A
3/4A
1A
1 1/2A
2A
2 1/2A
3A
3 1/2A
4A
5A
7A
10A
12A
15A
TIME IN SECONDS
CURRENT IN AMPERES
1 1/4A
20A
25A
30A
www.littelfuse.com
Axial and Radial Lead Fuses
Subminiature
PICO® FUSE Very Fast-Acting Fuse 275/276 ®®
PART NUMBER
AXIAL
LEADS
RADIAL
LEADS
AMPERE
RATING
VOLTAGE
RATING
AVERAGE COLD
RESISTANCE IN
OHMS
275.062 276.062 1/16 125 7.0000
275.125 276.125 1/8 125 2.1800
275.250 276.250 1/4 125 0.7400
275.375 276.375 3/8 125 0.4300
275.500 276.500 1/2 125 0.2800
275.750 276.750 3/4 125 0.1640
275 001 276 001 1 125 0.1260
275 01.5 276 01.5 1-1/2 125 0.0810
275 002 276 002 2 125 0.0550
275 02.5 276 02.5 2-1/2 125 0.0420
275 003 276 003 3 125 0.0360
275 03.5 276 03.5 3-1/2 125 0.0275
275 004 276 004 4 125 0.0220
275 005 276 005 5 125 0.0140
275 007 276 007 7 125 0.0100
275 010 276 010 10 125 0.0060
275 012 276 012 12 32 contact Littelfuse
275 015 276 015 15 32 0.0040
275 020 276 020 20 32 contact Littelfuse
275 025 276 025 25 32 contact Littelfuse
275 030 276 030 30 32 contact Littelfuse
3/4 A
3/4 A
Transparent
Insulating Sleeve
Transparent
Insulating Sleeve
BB
A
A
C
DIA.
C
DIA.
B
275 000 Series
276 000 Series
Amperage
7.11
(.28")
1/16 - 10
12 - 15
20 - 30
7.11
(.28")
7.87
(.31")
38.1
(1.50")
38.1
(1.50")
38.1
(1.50")
2.36
(.093")
2.36
(.093")
3.38
(.133")
8.33
(.328")
9.12
(.359")
10.72
(.422")
D
.635
(.025")
.812
(.032")
1.016
(.040")
E
E
BCD
AE
Dimensions in mm (inches)
ORDERING INFORMATION:
