0491.250MAT1HF [LITTELFUSE]
Electric Fuse, Very Fast Blow, 0.25A, PICO,;
| 型号： | 0491.250MAT1HF |
| 厂家： | 
LITTELFUSE |
| 描述： | Electric Fuse, Very Fast Blow, 0.25A, PICO, |
| 文件： | 总4页 (文件大小：170K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Axial Lead & Cartridge Fuses
PICO® ll > Very Fast-Acting > 491 Series
PS
E
491 Series, PICO® II, Very Fast-Acting Fuse
Description
The PICO® II Very Fast-Acting Fuse is designed to meet an
extensive array of performance characteristics in a
space-saving subminiature package.
Features
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temperature range
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range (125mA - 10A)
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rating
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Applications
Agency Approvals
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Agency
Agency File Number
Ampere Range
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E10480
LR 29862
125mA - 10A
125mA - 10A
1A - 5A
Electrical Characteristics
PS
E
JET 1896-31007-1001
% of Ampere
Rating
Ampere Rating
1/8-10
OpeningTime
100%
300%
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1/8-10
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Electrical Characteristics
Agency Approvals
Max
Voltage
Rating
(V)
Ampere
Rating
(A)
Ordering
Number
(Std.)
Nominal Cold
Resistance
(Ohms)
Interrupting
Rating
Amp Code
PS
E
.125
.200
.250
.315
.400
.500
.630
.750
.800
1.00
1.25
1.50
1.60
2.00
2.50
3.00
3.15
3.50
4.00
5.00
7.00
0.125
0.200
0.250
0.315
0.400
0.500
0.630
0.750
0.800
001.
0491.125
0491.200
0491.250
0491.315
0491.400
0491.500
0491.630
0491.750
0491.800
0491 001.
0491 1.25
0491 01.5
0491 01.6
0491 002.
0491 02.5
0491 003.
0491 3.15
0491 03.5
0491 004.
0491 005.
0491 007.
0491 010.
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
86
1.7000
0.8950
0.6650
0.5000
0.3230
0.3020
0.2050
0.1750
0.1480
0.1280
0.1000
0.0823
0.0700
0.0473
0.0360
0.0295
0.0275
0.0240
0.0204
0.0158
0.0107
0.0072
x
x
x
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x
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50A at
125Vac and
Vdc
1.25
01.5
01.6
002.
02.5
003.
3.15
03.5
004.
005.
007.
10.00
010.
86
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© 2009 Littelfuse, Inc.
491 Series
EC3051v1E-0902-CUST
Specifications are subject to change without notice.
Revised: March 11, 2009
Please refer to www.littelfuse.com for current information.
Axial Lead & Cartridge Fuses
®
PICO ll > Very Fast-Acting > 491 Series
Temperature Rerating Curve
AverageTime Current Curves
1000
100
10
1
Note:
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continuous operation.
0.1
0.01
Soldering Parameters
Recommended Process Parameters:
0.1
1
10
100
1000
CURRENT IN AMPERES
Wave Parameter
Preheat:
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PreheatTime:
Lead-Free Recommendation
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100° C
150° C
60-180 seconds
Solder PotTemperature:
Solder DwellTime:
260° $ꢀ.BYJNVN
2-5 seconds
Recommended Hand-Solder Parameters:
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Note: These devices are not recommended for IR or
Convection Reflow process.
© 2009 Littelfuse, Inc.
491 Series
EC3051v1E-0902-CUST
Specifications are subject to change without notice.
Please refer to www.littelfuse.com for current information.
Revised: March 11, 2009
Axial Lead & Cartridge Fuses
PICO® ll > Very Fast-Acting > 491 Series
Product Characteristics
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Materials
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Solderability
Lead Pull Force
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Shock
Condition I (100 G’s peak for 6
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Vibration
Moisture Resistance
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Resistance to Soldering
Heat
Flammability Rating
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Part Numbering System
Dimensions
0491 xxxx N R T1 HF
491 Series (RoHS Version) Markings
(T1 lead length)
62.7 (2.468")
Series
52.4 (2.062")*
27.78
27.78
Current Rating
(1.094")
(1.094")
7.11 (.280")
Refer to Amp Code column of
Electrical Characteristics Table
F
0.5
0.5
L
2.80 (.11")
MAX
Quantity
N = 5000
M = 1000
5.0 (.197")
6.35 (.25")
tape
6.35 (.25")
tape
F
L
Wire Diameter:
0.64 (.025")
Type of Packaging
R = Reel
A = Ammo Pack
491 Series (RoHS and Halogen-free Version) Markings
(T1 lead length)
Lead Length
62.7 (2.468")
The default lead length for Ammo pack and
Loose pack is now T1
T1 = 52.4mm (2.062”)
52.4 (2.062")*
27.78
(1.094")
27.78
(1.094")
7.11 (.280")
F
0.5
0.5
L
Option Codes
Blank = RoHS
2.80 (.11")
MAX
5.0 (.197")
6.35 (.25")
tape
6.35 (.25")
tape
HF
= RoHS and Halogen-free
F
L
Wire Diameter:
0.64 (.025")
Packaging
Quantity &
Packaging Code
Packaging Option
Packaging Specification
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© 2009 Littelfuse, Inc.
491 Series
EC3051v1E-0902-CUST
Specifications are subject to change without notice.
Please refer to www.littelfuse.com for current information.
Revised: March 11, 2009
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: March 11, 2009
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