0251001.NRT3 Littelfuse Inc, 0251001.NRT3 Datasheet
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0251001.NRT3
Manufacturer Part Number
0251001.NRT3
Description
FUSE 1A 125V FAST PICO AXL T/R
Manufacturer
Littelfuse Inc
Series
PICO® II 251r
Datasheet
1.0251.062M-.pdf
(1 pages)
Specifications of 0251001.NRT3
Fuse Type
Fast Acting
Voltage - Rated
125VAC, 125VDC
Current
1A
Package / Case
Axial
Size / Dimension
0.110" Dia x 0.280" L (2.80mm x 7.11mm)
Mounting Type
Through Hole
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Operating Temperature
-
Color
-
Other names
251001.T3
251001T3
R251001.T3
R251001T3
251001T3
R251001.T3
R251001T3
AXIAL LEAD AND CARTRIDGE FUSES
SUBMINIATURE
PICO
The PICO
extensive array of performance characteristics in a space-
saving subminiature package.
ELECTRICAL CHARACTERISTICS:
AGENCY APPROVALS:
Components Program of Underwriters Laboratories and
Certified by CSA. Approved by MITI from 1 through 5
amperes.
AGENCY FILE NUMBERS: UL E10480, CSA LR 29862.
REFERENCE TO MIL SPEC:
type FM10, conforming to Mil-F-23419.
INTERRUPTING RATINGS:
300 amperes at 125 VDC.
50 amperes at 125 VAC.
ENVIRONMENTAL SPECIFICATIONS:
Operating Temperature: –55°C to 125°C.
Shock: MIL-STD-202, Method 213, Test Condition I
(100 G’s peak for 6 milliseconds).
Vibration: MIL-STD-202, Method 201 (10 –55 Hz);
Method 204, Test Condition C (55–2000 Hz at 10 G’s Peak).
Moisture Resistance: MIL-STD-202, Method 106.
PHYSICAL SPECIFICATIONS:
Materials: Encapsulated, Epoxy-Coated Body; Solder
Coated Copper Wire Leads.
Flammability Rating: UL94VO.
Soldering Parameters:
Solderability: MIL-STD-202, Method 208.
Lead Pull Force: MIL-STD-202, Method 211, Test
Condition A (will withstand a 7 lb. axial pull test).
PACKAGING SPECIFICATIONS: Tape and Reed per
EIA-296; T1: 2.062" (52.4mm) taped spacing; 5,000
per reel.
Option: Radial Lead Version; 0.4" lead spacing; to order
change 251 to 252.
PATENTED
ORDERING INFORMATION:
32
Std. Type
R251.062
R251.125
R251.250
R251.375
R251.500
R251.750
R251 001
R251 01.5
R251 002
R251 02.5
R251 003
R251 03.5
R251 004
R251 005
R251 007
R251 010
R251 012
R251 015
Number
Catalog
Wave Solder — 260°C, 10 seconds maximum.
% of Ampere
Rating
100%
200%
®
®
II very fast-acting fuse is designed to meet an
R253.062
R253.125
R253.250
R253.375
R253.500
R253.750
R253 001
R253 01.5
R253 002
R253 02.5
R253 003
R253 03.5
R253 004
R253 005
R253 007
R253 010
R253 012
R253 015
Mil. Type
Number
Catalog
II
Very Fast-Acting Type
Ampere Voltage
Ampere
1/16 –15
Rating
Rating
1/16 –7
12 –15
1/16
1/8
1/4
3/8
1/2
3/4
1
2
3
10
12
15
1
2
3
4
5
7
1
1
1
10
/
/
/
1
2
2
2
Recognized under the
Rating
2
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
Available in Military QPL
32
32
4 hours, Minimum
1 second Maximum
3 seconds Maximum
10 seconds Maximum
Cold Ohms
Resistance
Nominal
7.0
1.70
0.665
0.395
0.280
0.175
0.125
0.0800
0.0468
0.0350
0.0290
0.0240
0.0204
0.0155
0.0105
0.00705
0.00481
0.00395
Opening
Time
10.5
24.2
45.5
70.1
Melting I
0.0000750
0.00163
0.0106
0.0254
0.0546
0.155
0.281
0.650
0.421
0.721
1.23
1.65
2.35
3.90
Nominal
A
2
Sec.
2
t
0.001
NOTE: Leads are spider-coated copper, .025" diameter for
1
are LASER-MARKED on two sides.
0.01
/
100
0.1
16
Average Time Current Curves
10
–10A, .032" diameter for 12 –15A. LF and amperage rating
1
0.05 0.1
.025" DIA.
1.5"
EPOXY COATING
1
L
F
CURRENT IN AMPERES
.280"
REF.
1 A
10
®
1.5"
®
100
.095" DIA. REF.
1
QPL
1000
2