參數(shù)資料
型號： R253.062
廠商： Littelfuse, Inc.
元件分類： 保險絲
英文描述： Axial Lead and Cartridge Fuses - Subminiature
中文描述： 軸向引線和墨盒保險絲-微型
文件頁數(shù)： 1/1頁
文件大?。?/td> 93K
代理商： R253.062
Subminiature
Axial Lead and Cartridge Fuses
PICO II Very Fast-Acting Fuse 251/253
280
www .littelfuse .com
The PICO II very fast-acting fuse is designed to meet an extensive array
of performance characteristics in a space-saving subminiature package.
ELECTRICAL CHARACTERISTICS:
% of Ampere
Ampere
Opening
Rating
Time
100%
1/16 –15
4 hours, Minimum
1/16 –7
1 second, Maximum
200%
10
3 seconds, Maximum
12 –15
10 seconds, Maximum
AGENCY APPROVALS: Recognized under the Components
Program of Underwriters Laboratories and Certified by CSA.
Approved by METI from 1 through 5 amperes.
AGENCY FILE NUMBERS: UL E10480, CSA LR 29862.
REFERENCE TO MIL SPEC: Available in FM10 on QPL for
MIL-PRF-23419. To order, change 251 to 253 as shown below.
INTERRUPTING RATINGS:
300 amperes at rated voltage VDC.
50 amperes at rated voltage 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: UL 94V0
Soldering Parameters:
Wave Solder — 260°C, 10 seconds maximum.
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 Reel 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:
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
Std. Type
Mil. Type
Nominal
Catalog
Ampere
Voltage
Resistance
Melting I2t
Number
Rating
Cold Ohms
A2 Sec.
R251.062
R253.062
1/16
125
7.0
0.000113
R251.125
R253.125
1/8
125
1.70
0.00174
R251.250
R253.250
1/4
125
0.665
0.0116
R251.375
R253.375
3/8
125
0.395
0.0296
R251.500
R253.500
1/2
125
0.280
0.0598
R251.750
R253.750
3/4
125
0.175
0.153
R251 001
R253 001
1
125
0.128
0.256
R251 01.5
R253 01.5
11/2
125
0.0823
0.587
R251 002
R253 002
2
125
0.0473
0.405
R251 02.5
21/2
125
0.0360
0.721
R251 003
R253 003
3
125
0.0290
1.19
R251 03.5
31/2
125
0.0240
1.58
R251 004
R253 004
4
125
0.0204
2.45
R251 005
R253 005
5
125
0.0155
4.14
R251 007
R253 007
7
125
0.0105
10.4
R251 010
R253 010
10
125
0.00705
25.5
R251 012
12
32
0.0055
45.2
R251 015
R253 015
15
32
0.00446
68.8
Average Time Current Curves
F
L 1 A
38.1
(1.5")
38.1
(1.5")
7.11 (.280")
REF.
EPOXY COATING
0.64 (.025")
DIA.
2.41 (.095")
DIA. REF.
NOTE: .025" diameter for 1/16 –10A, .032" diameter for 12 –15A.
Note: Higher Ampere Ratings Available.
Contact Technical Assistance for Details
QPL
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