SF45N075TTE 查看數據表（PDF） - KOA Speer Electronics, Inc.
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SF45N075TTE Datasheet PDF : 2 Pages
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SF
chip type resettable fuses
applications and ratings
Part
Designation
SF45N050
SF45N075
SF45N110
Hold
Rating
0.50A
0.75A
1.10A
Max. Rated
Voltage
(DCV)
15.0
13.2
6.0
Max. Rated
Current
(A)
40
Trip
Current
(A)
1.00
1.50
2.20
Initial
Resistance
Resistance R after Tripping
Type (Ω) R1 Max. (Ω)
0.49
0.85
0.24
0.41
0.15
0.21
Power
Dissipation
PD (W)
0.6
Operating
Temperature
Range
-40°C
to
+85°C
environmental applications
Derating Curve
160
140
120
100
80
60
40
20
0
-55 -35 -15 5 25 45 65 85 105 125
Ambient Temperature
(°C)
R-T Characteristics
100k
10k
1k
100
10
1
0.1
0
50
100
150
Temperature
(°C)
Performance Characteristics
Parameter
Requirement
Limit
Trip Endurance
Without damage under 24 hours
of current sending
Trip Cycle Life (ON-OFF Test)
Without damage after 1000 cycles
Time to Trip Characteristics
1000
100
10
1
.1
.01
.001
.0001
0.1
1
10
100
Current
(A)
Test Method
Use the device which has been left for 15 minutes or more in 25°C
set voltage to be applied to the element at maximum rated voltage.
And set current to be applied within the range between trip current
and maximum rated current
Use the device which has been left for 15 minutes or more in 25°C
set voltage and current to be applied to maximum rated voltage
and maximum rated current respectively. Apply rated voltage for
5 seconds and 55 seconds off
Heat Resistance
Without Damage
85°C ± 3°C, 1000 hours
Cold Resistance
Without Damage
-40°C ± 3°C, 1000 hours
Humidity Resistance
Without Damage
85°C ± 3°C, 85% RH, 1000 hours
Heat-Cold Cycling
Without Damage
-40°C ± 3°C (30 minutes), +85°C ± 3°C (30 minutes), 20 cycles
246
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
2/22/08
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KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
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