参数资料
| 型号： | MF-R250-0-99 |
| 厂商： | Bourns Inc. |
| 文件页数： | 1/6页 |
| 文件大小： | 0K |
| 描述： | FUSE PTC RESET |
| 产品培训模块： | Multifuse® Resettable fuses ESD Protection Products |
| 标准包装： | 500 |
| 系列： | MF-R |
| 电流 - 维持(Ih)： | 2.5A |
| 电流 - 跳闸(It)： | 5A |
| 电流 - 最大： | 40A |
| 电压 - 最大： | 30V |
| R最小/最大： | 0.025 ~ 0.048 欧姆 |
| 跳闸时间： | 10.3s |
| 封装/外壳： | 径向 |
| 包装： | 散装 |
Features
■ Radial Leaded Devices
Applications
Almost anywhere there is a low voltage power
018 1 0
R1
0T
■ Cured, ?ame retardant epoxy polymer
insulating material meets UL 94V-0
requirements
■ RoHS compliant*
■ Agency recognition:
supply and a load to be protected, including:
■ Computers & peripherals
■ General electronics
■ Automotive applications
MF-R Series - PTC Resettable Fuses
Electrical Characteristics
Model
V max.
Volts
I max.
Amps
Ihold Itrip
Amperes
at 23 °C
Initial
Resistance
Ohms
at 23 °C
1 Hour (R1)
Post-Trip
Resistance
Ohms
at 23 °C
Max. Time
to Trip
Amperes Seconds
at 23 °C
at 23 °C
Tripped
Power
Dissipation
Watts
at 23 °C
Hold Trip
Min. Max.
Max.
Typ.
MF-R005**
MF-R010
MF-R017
MF-R020
MF-R025
MF-R030
MF-R040
MF-R050
MF-R065
MF-R075
MF-R090
MF-R090-0-9
MF-R110
MF-R135
MF-R160
MF-R185
MF-R250
MF-R250-0-10
MF-R300
MF-R400
MF-R500
MF-R600
MF-R700
MF-R800
MF-R900
MF-R1100
60
60
60
60
60
60
60
60
60
60
60
30
30
30
30
30
30
30
30
30
30
30
30
30
30
16
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
100
0.05 0.10
0.10 0.20
0.17 0.34
0.20 0.40
0.25 0.50
0.30 0.60
0.40 0.80
0.50 1.00
0.65 1.30
0.75 1.50
0.90 1.80
0.90 1.80
1.10 2.20
1.35 2.70
1.60 3.20
1.85 3.70
2.50 5.00
2.50 5.00
3.00 6.00
4.00 8.00
5.00 10.00
6.00 12.00
7.00 14.00
8.00 16.00
9.00 18.00
11.00 22.00
7.3 11.1
2.50 4.50
2.00 3.20
1.50 2.84
1.00 1.95
0.76 1.36
0.52 0.86
0.41 0.77
0.27 0.48
0.18 0.40
0.14 0.31
0.07 0.12
0.10 0.18
0.065 0.115
0.055 0.105
0.040 0.07
0.025 0.048
0.025 0.048
0.020 0.05
0.010 0.03
0.010 0.03
0.005 0.02
0.005 0.02
0.005 0.02
0.005 0.01
0.003 0.01
22.0
7.50
8.00
4.40
3.00
2.10
1.29
1.17
0.72
0.60
0.47
0.22
0.27
0.17
0.15
0.11
0.07
0.07
0.08
0.05
0.05
0.04
0.03
0.03
0.02
0.014
0.5
0.5
0.85
1.0
1.25
1.5
2.0
2.5
3.25
3.75
4.5
4.5
5.5
6.75
8.0
9.25
12.5
12.5
15.0
20.0
25.0
30.0
35.0
40.0
45.0
40.0
5.0
4.0
3.0
2.2
2.5
3.0
3.8
4.0
5.3
6.3
7.2
5.9
6.6
7.3
8.0
8.7
10.3
10.3
10.8
12.7
14.5
16.0
17.5
18.8
***20.0
20.0
0.22
0.38
0.48
0.40
0.45
0.50
0.55
0.75
0.90
0.90
1.00
0.60
0.70
0.80
0.90
1.00
1.20
1.20
2.00
2.50
3.00
3.50
3.80
4.00
4.20
4.50
**CSA approval pending.
***Tested at 40 amps
Environmental Characteristics
Operating/Storage Temperature ...................... -40 °C to +85 °C
Maximum Device Surface Temperature
in Tripped State ............................................ 125 °C
Passive Aging .................................................. +85 °C, 1000 hours...........................................±5 % typical resistance change
Humidity Aging................................................. +85 °C, 85 % R.H. 1000 hours .........................±5 % typical resistance change
Thermal Shock ................................................ -40 °C to +85 °C, 10 times ................................±10 % typical resistance change
Solvent Resistance .......................................... MIL-STD-202, Method 215 ...............................No change
Vibration .......................................................... MIL-STD-883C, Method 2007.1,.......................No change
Condition A
Test Procedures And Requirements For Model MF-R Series
Test Test Conditions Accept/Reject Criteria
Visual/Mech. .................................................... Verify dimensions and materials .......................Per MF physical description
Resistance ....................................................... In still air @ 23 °C .............................................Rmin ≤ R ≤ Rmax
Time to Trip ...................................................... 5 times Ihold, Vmax, 23 °C ...............................T ≤ max. time to trip (seconds)
Hold Current .................................................... 30 min. at Ihold .................................................No trip
Trip Cycle Life .................................................. Vmax, Imax, 100 cycles ....................................No arcing or burning
Trip Endurance ................................................ Vmax, 48 hours.................................................No arcing or burning
UL File Number ............................................... E 174545
CSA File Number ............................................. CA 110338
TüV File Number ............................................. R2057213
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Speci?cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their speci?c applications.
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