Metric 0603 Surface Mounted PTC Resettable Fuse
1608 Metric SMT PPTC 0603 Surface Mount PTC Resettable Fuse 9V 0.2A
Benefits Of Metric 0603 Surface Mounted PTC Resettable Fusev
The 0603 Surface Mount PTC Resettable Fuse provides surface mount overcurrent protection for applications where space is at a premium and resettable protection is desired.
Features Of Metric 0603 Surface Mounted PTC Resettable Fuse
• RoHS compliant, lead-free and halogen free
• Compact design saves board space
• Low DCR resistance
• 0603 Chip Size• Fast Trip Time
• Low-profile
• Compatible with high temperature solders
Application Of Metric 0603 Surface Mounted PTC Resettable Fuse
• USB peripherals
• Disk drives
• CD-ROMs
• Plug and play protection for motherboards and peripherals
• PDAs / digital cameras
• Game console port protection
Performance Specification Of Metric 0603 Surface Mounted PTC Resettable Fuse
|
Model
|
Marking
|
|
|
|
|
|
Maximum
|
Resistance
|
|
V max
|
Imax
|
I hold
|
I trip
|
Pd
|
Time To Trip
|
|
|
|
@25°C
|
@25°C
|
Typ.
|
Current
|
Time
|
R i min
|
R1max
|
|
(V dc)
|
(A)
|
(A)
|
(A)
|
(W)
|
(A)
|
(Sec)
|
(W)
|
(W)
|
|
SMD0603R001SF
|
X
|
60
|
20
|
0.01
|
0.03
|
0.5
|
0.2
|
1.00
|
15.000
|
100.000
|
|
SMD0603R002SF
|
Y
|
60
|
20
|
0.02
|
0.06
|
0.5
|
0.2
|
1.00
|
12.000
|
70.000
|
|
SMD0603R002SF9v
|
Y
|
9
|
20
|
0.02
|
0.06
|
0.5
|
0.2
|
1.00
|
12.000
|
70.000
|
|
SMD0603R003SF
|
Z
|
30
|
20
|
0.03
|
0.09
|
0.5
|
0.2
|
1.00
|
6.000
|
50.000
|
|
SMD0603R003SF9v
|
Z
|
9
|
20
|
0.03
|
0.09
|
0.5
|
0.2
|
1.00
|
6.000
|
50.000
|
|
SMD0603R004SF
|
-
|
24.0
|
20
|
0.04
|
0.12
|
0.5
|
0.20
|
1.00
|
4.000
|
40.000
|
|
SMD0603R005SF
|
-
|
15.0
|
20
|
0.05
|
0.15
|
0.5
|
0.25
|
1.00
|
3.800
|
30.000
|
|
SMD0603R005SF9v
|
-
|
9.0
|
20
|
0.05
|
0.15
|
0.5
|
0.25
|
1.00
|
3.800
|
30.000
|
|
SMD0603R010SF
|
1
|
15.0
|
35
|
0.10
|
0.30
|
0.5
|
0.5
|
1.00
|
0.900
|
6.000
|
|
SMD0603R010SF9v
|
1
|
9.0
|
35
|
0.10
|
0.30
|
0.5
|
0.5
|
1.00
|
0.900
|
6.000
|
|
SMD0603R020SF
|
2
|
9.0
|
35
|
0.20
|
0.50
|
0.5
|
1.0
|
0.60
|
0.550
|
3.500
|
|
SMD0603R020SF16v
|
2
|
16.0
|
35
|
0.20
|
0.50
|
0.5
|
1.0
|
0.60
|
0.550
|
3.500
|
|
SMD0603R025SF
|
2
|
9.0
|
35
|
0.25
|
0.55
|
0.5
|
8.0
|
0.08
|
0.500
|
3.000
|
|
SMD0603R025SF16v
|
2
|
16.0
|
35
|
0.25
|
0.55
|
0.5
|
8.0
|
0.08
|
0.500
|
3.000
|
|
SMD0603R035SF
|
3
|
6.0
|
35
|
0.35
|
0.75
|
0.5
|
8.0
|
0.10
|
0.200
|
1.000
|
|
SMD0603R040SF
|
5
|
6.0
|
35
|
0.40
|
0.80
|
0.5
|
8.0
|
0.10
|
0.150
|
0.900
|
|
SMD0603R050SF
|
5
|
6.0
|
35
|
0.50
|
1.00
|
0.5
|
8.0
|
0.10
|
0.100
|
0.800
|
|
SMD0603R050SF12v
|
5
|
12.0
|
35
|
0.50
|
1.00
|
0.5
|
8.0
|
0.10
|
0.100
|
0.800
|
|
SMD0603R060SF
|
7
|
6.0
|
35
|
0.60
|
1.20
|
0.5
|
8.0
|
0.10
|
0.080
|
0.600
|
|
SMD0603R065SF
|
7
|
6.0
|
35
|
0.65
|
1.30
|
0.5
|
8.0
|
0.10
|
0.070
|
0.550
|
|
SMD0603R075SF
|
7
|
6.0
|
35
|
0.75
|
1.40
|
0.5
|
8.0
|
0.10
|
0.060
|
0.450
|
|
SMD0603R100SF
|
0
|
6.0
|
35
|
1.00
|
2.00
|
0.5
|
8.0
|
0.10
|
0.050
|
0.300
|
V max = Maximum operating voltage device can withstand without damage at rated current (Imax).
I max = Maximum fault current device can withstand without damage at rated voltage (V max).
I hold = Hold Current. Maximum current device will not trip in 25°C still air.
I trip = Trip Current. Minimum current at which the device will always trip in 25°C still air.
Pd = Power dissipation when device is in the tripped state in 25°C still air environment at rated voltage.
Ri min/max = Minimum/Maximum device resistance prior to tripping at 25°C.
R1max = Maximum device resistance is measured one hour post reflow.
CAUTION : Operation beyond the specified ratings may result in damage and possible arcing and flame.
Physical Dimensions Of Metric 0603 Surface Mounted PTC Resettable Fuse(mm.)
|
P/N
|
A
|
B
|
C
|
D
|
E
|
|
Min.
|
Max.
|
Min.
|
Max.
|
Min.
|
Max.
|
Min.
|
Min.
|
|
SMD0603R001SF
|
1.45
|
1.85
|
0.65
|
1.05
|
0.40
|
1.00
|
0.15
|
0.10
|
|
SMD0603R002SF9v
|
1.45
|
1.85
|
0.65
|
1.05
|
0.40
|
1.00
|
0.15
|
0.10
|
|
SMD0603R002SF
|
1.45
|
1.85
|
0.65
|
1.05
|
0.40
|
1.00
|
0.15
|
0.10
|
|
SMD0603R003SF9v
|
1.45
|
1.85
|
0.65
|
1.05
|
0.40
|
1.00
|
0.15
|
0.10
|
|
SMD0603R003SF
|
1.45
|
1.85
|
0.65
|
1.05
|
0.40
|
1.00
|
0.15
|
0.10
|
|
SMD0603R004SF
|
1.45
|
1.85
|
0.65
|
1.05
|
0.40
|
1.00
|
0.15
|
0.10
|
|
SMD0603R005SF9v
|
1.45
|
1.85
|
0.65
|
1.05
|
0.40
|
1.00
|
0.15
|
0.10
|
|
SMD0603R005SF
|
1.45
|
1.85
|
0.65
|
1.05
|
0.40
|
1.00
|
0.15
|
0.10
|
|
SMD0603R010SF9v
|
1.45
|
1.85
|
0.65
|
1.05
|
0.40
|
1.00
|
0.15
|
0.10
|
|
SMD0603R010SF
|
1.45
|
1.85
|
0.65
|
1.05
|
0.40
|
1.00
|
0.15
|
0.10
|
|
SMD0603R020SF
|
1.45
|
1.85
|
0.65
|
1.05
|
0.40
|
1.00
|
0.15
|
0.10
|
|
SMD0603R020SF16v
|
1.45
|
1.85
|
0.65
|
1.05
|
0.40
|
1.00
|
0.15
|
0.10
|
|
SMD0603R025SF
|
1.45
|
1.85
|
0.65
|
1.05
|
0.40
|
1.00
|
0.15
|
0.10
|
|
SMD0603R025SF16v
|
1.45
|
1.85
|
0.65
|
1.05
|
0.40
|
1.00
|
0.15
|
0.10
|
|
SMD0603R035SF
|
1.45
|
1.85
|
0.65
|
1.05
|
0.35
|
0.90
|
0.15
|
0.10
|
|
SMD0603R040SF
|
1.45
|
1.85
|
0.65
|
1.05
|
0.40
|
0.90
|
0.15
|
0.10
|
|
SMD0603R050SF
|
1.45
|
1.85
|
0.65
|
1.05
|
0.55
|
1.15
|
0.15
|
0.10
|
|
SMD0603R050SF12v
|
1.45
|
1.85
|
0.65
|
1.05
|
0.55
|
1.15
|
0.15
|
0.10
|
|
SMD0603R060SF
|
1.45
|
1.85
|
0.65
|
1.05
|
0.55
|
1.15
|
0.15
|
0.10
|
|
SMD0603R065SF
|
1.45
|
1.85
|
0.65
|
1.05
|
0.55
|
1.15
|
0.15
|
0.10
|
|
SMD0603R075SF
|
1.45
|
1.85
|
0.65
|
1.05
|
0.55
|
1.15
|
0.15
|
0.10
|
|
SMD0603R100SF
|
1.45
|
1.85
|
0.65
|
1.05
|
0.55
|
1.15
|
0.15
|
0.10
|
Environmental Specifications Of Metric 0603 Surface Mounted PTC Resettable Fuse
|
Test
|
Conditions
|
Resistance change
|
|
Passive aging
|
+85°C, 1000 hrs.
|
±5% typical
|
|
Humidity aging
|
+85°C, 85% R.H. , 168 hours
|
±5% typical
|
|
Thermal shock
|
+85°C to -40°C, 20 times
|
±33% typical
|
|
Resistance to solvent
|
MIL-STD-202,Method 215
|
No change
|
|
Vibration
|
MIL-STD-202,Method 201
|
No change
|
|
Ambient operating conditions : - 40 °C to +85 °C
|
|
Maximum surface temperature of the device in the tripped state is 125 °C
|
Thermal Derating Chart Of Metric 0603 Surface Mounted PTC Resettable Fuse
Recommended Hold Current(A) at Ambient Temperature(°C)
|
Model
|
Ambient Operation Temperature
|
|
-40°C
|
-20°C
|
0°C
|
25°C
|
40°C
|
50°C
|
60°C
|
70°C
|
85°C
|
|
SMD0603R001SF
|
0.016
|
0.014
|
0.012
|
0.010
|
0.008
|
0.007
|
0.006
|
0.005
|
0.0035
|
|
SMD0603R002SF
|
0.031
|
0.027
|
0.024
|
0.020
|
0.016
|
0.014
|
0.012
|
0.011
|
0.007
|
|
SMD0603R003SF
|
0.047
|
0.041
|
0.036
|
0.030
|
0.024
|
0.021
|
0.018
|
0.016
|
0.0108
|
|
SMD0603R004SF
|
0.052
|
0.048
|
0.044
|
0.040
|
0.032
|
0.028
|
0.024
|
0.020
|
0.012
|
|
SMD0603R005SF
|
0.065
|
0.060
|
0.055
|
0.050
|
0.040
|
0.035
|
0.031
|
0.025
|
0.015
|
|
SMD0603R010SF
|
0.13
|
0.12
|
0.11
|
0.10
|
0.08
|
0.07
|
0.06
|
0.05
|
0.03
|
|
SMD0603R020SF
|
0.27
|
0.25
|
0.23
|
0.20
|
0.17
|
0.14
|
0.12
|
0.10
|
0.07
|
|
SMD0603R025SF
|
0.32
|
0.29
|
0.27
|
0.25
|
0.21
|
0.18
|
0.16
|
0.14
|
0.10
|
|
SMD0603R035SF
|
0.47
|
0.41
|
0.38
|
0.35
|
0.29
|
0.26
|
0.24
|
0.20
|
0.14
|
|
SMD0603R040SF
|
0.54
|
0.47
|
0.43
|
0.40
|
0.33
|
0.29
|
0.27
|
0.22
|
0.16
|
|
SMD0603R050SF
|
0.67
|
0.59
|
0.54
|
0.50
|
0.41
|
0.37
|
0.34
|
0.29
|
0.20
|
|
SMD0603R060SF
|
0.81
|
0.70
|
0.651
|
0.60
|
0.49
|
0.44
|
0.41
|
0.34
|
0.24
|
|
SMD0603R065SF
|
0.87
|
0.76
|
0.71
|
0.65
|
0.54
|
0.48
|
0.44
|
0.37
|
0.26
|
|
SMD0603R075SF
|
0.98
|
0.85
|
0.81
|
0.75
|
0.60
|
0.54
|
0.44
|
0.40
|
0.31
|
|
SMD0603R100SF
|
1.19
|
1.13
|
1.08
|
1.00
|
0.80
|
0.72
|
0.59
|
0.54
|
0.43
|
Thermal Derating Curve Of Metric 0603 Surface Mounted PTC Resettable Fuse
Recommended Pad Layout Of The 0603 Surface Mount PTC Resettable Fuse (mm.)
Packaging Quantity Of Metric 0603 Surface Mounted PTC Resettable Fuse
|
Part Number
|
Quantity
|
|
SMD0603 HF Series
|
4,000 pcs/reel
|
Tape & reel packaging per EIA481-1
Selection Process Of Metric 0603 Surface Mounted PTC Resettable Fuse
1. Determine the following circuit operating parameters:
• Normal operating current – IHOLD
• Maximum circuit voltage – VMAX
• Maximum interrupt current – IMAX
• Ambient operating temperature
2. Select the suitable form factor.
3. Compare the PTC data sheet ratings on littelfuse.com for VMAX and IMAX to ensure that the circuit parameters do not exceed these ratings.
4. Verify that the ambient operating temperature within close proximity to the device is within its normal operating range. Thermally derate IHOLD and IMAX as necessary. See equation below. I HOLD = IMAX / Thermal derating factor
5. Check that the trip time protects the circuit.
6. Verify that the post trip resistance (R1MAX) of the device is taken into account in the circuit design.
7. Independently test and evaluate the suitability and performance of the PTC in the actual application.
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