Page 1
POWR-GARD® Fuse Datasheet
.06 (1.52)
.14
(10.31)
SPF SERIES SOLAR FUSES
1000 Vdc • 1-30 A
Description
The SPF Solar Protection Fuse series has been specifically
designed for the protection of photovoltaic (PV) systems.
This family of Midget style fuses (10 x 38 mm) can safely
protect PV modules and conductors from reverseovercurrent conditions.
As PV systems have grown in size, so have the
corresponding voltage requirements. This increase in system
voltage has typically been intended to minimize power
loss associated with long conductor runs. Standard circuit
protection devices are not designed to completely protect
photovoltaic panels. However, the SPF series is UL Listed to
safely interrupt faulted circuits up to this demanding voltage
level.
Littelfuse offers 14 ampere ratings to match specific
requirements in a variety of applications.
Features/Benefits
• Meets UL, IEC and VDE photovoltaic standards
• UL 248-19 Listed 1000 Vdc maximum
• 1-30 A ratings available
• 20,000 A Interrupting Rating - 1A - 20A
• 50,000 A Interrupting Rating - 25A - 30A
• Both
Applications
• Inverters
• Combiner boxes
• Battery charge controllers
Recommended Fuse Holders
LPHV 1000 Vdc POWR-Safe Series
Web Resources
Download technical documents: littelfuse.com/spf
PCB mount and dead-front holder options available
Specifications
Voltage Rating 1000 VDC
Amperage Rating 1, 2, 3, 3.5, 4, 5, 6, 8, 10, 12, 15, 20, 25, 30
Max. Interrupting Rating 20 kA - 1A - 20A
50 kA - 25A - 30A
Time Constant ≤ 2ms
Material Body: Melamine
Caps: Copper Alloy
Approvals UL 248-19 Listed (File: E339112)
IEC 60269-6 (1-30 A)
VDE Certified (No. 40033098)*
see specifications on pg. 2
CSA Certified (File: 029862_0_000)
Environmental RoHS Compliant
Country of Origin Mexico
*Only certain amperage s
Part Numbering System
0SPF xxxx H XR
Series
Amp Code
SERIES AMP
SPF 2 10 FERRULE SPF002 0SPF0 02.T
SPF 3.5 10 FERRULE SPF03.5 0SPF03.5T
SPF 30 100 PCB TAB S SPF030R 0SPF030.HXR
PACKAGE
QUANTITY
MOUNTING
METHOD
Mounting Options
Blank = Ferrule
XR = PCB
Package Quantity
T = 10 Fuses
H = 100 Fuses
CATALOG
NUMBER
ORDE RING
NUMBER
Dimensions Inches (mm)
Ferrule Version PCB Vers ion
(3.56)
.406 (10.31)
.04
(1.02)
MOUNTING HOLE
DETAIL
1.5 (38.1)
+
.031
+
( .79)
-
.406
.378
(9.60)
.50 (12.7)
1.53
(38.86)
.12 (3.05)
.12
(3.05)
.02 (.51)
.28
(7.11)
Look for this logo to indicate products that are used in solar applications. Visit our website
littelfuse.com/solar for the latest updates on approvals, certifications, and new products.
littelfuse.com © 2017 Littelfuse POWR-GARD® Products
1 of 5
Rev:4-H-031317
Page 2
POWR-GARD® Fuse Datasheet
SPF SERIES SOLAR FUSES
Electrical Specifications
Ferrule Version
AMP
CODE
AMPERAGE
1 001.
2 002.
3 003.
3.5 03.5
4 004.
5 005.
6 006.
8 008.
10 010.
12 012.
15 015.
20 020.
25 025.
30 030.
ORDERING
NUMBER
0S PF001.T SPF 1A 07945816907
0S PF002 .T SPF 2A 0794 5816910
0SPF003.T SPF 3A 079 45816913
0SPF03.5T SPF 3-½A 07945880087
0S PF004 .T SPF 4A 07945 816916
0SPF005.T SPF 5A 0794 5816919
0SPF006.T SPF 6A 0794 5816922
0S PF008 .T SPF 8A 079 45816925
0S PF010.T SPF 10A 0794 5816928
0S PF012 .T SPF 12A 079 45 816931
0S PF015 .T SPF 15A 07945816934
0SPF020.T SPF 20A 07945816937
0S PF025 .T SPF 25A 07945817595
0S PF030 .T SPF 30A 07945817598
FUSE
LABEL ID
UPC
Electrical Specifications
PCB Version
NOM COLD
VOLTAGE
DC DC UL VDE CSA
1000 20 0.394 0.602 0.410 0.554
1000 20 0.237 1.5 86 0.8 51 1.175
1000 20 0.11 1.504 0.824 5.007
1000 20 0.07787 1.36 5 0.778 11.2 97
1000 20 0.06127 1.491 0.839 23.031
1000 20 0.04086 1.46 5 0.859 42.600
1000 20 0.0281 1.34 8 0.769 76.270
1000 20 0.0178 1.610 0.914 193.323
1000 20 0.0125 1.76 0 1.000 395.556
1000 20 0.00993 1.96 5 1.10 9 599.198
1000 20 0.007855 2.282 1.382 4 5 7.74 0
1000 20 0.0045 2.810 1.574 117 3.9 9 0
1000 50 0.00370 3.331 1.8 78 –
1000 50 0.00299 3.845 2.147 –
RATING (kA)
INTERRUPTING
RESISTANCE
(ohm)
WATTS LOSS
AT 100%
RATED
CURRENT (W)
WATTS LOSS
AT 80%
RATED
CURRENT (W)
TOTAL
CLEARING I2t
(A2 s) 10 kA
TOTAL
CLEARING I2t
(A2 s) 20 kA
0.554
4.755
7.8 82
11.29 7
23.031
42.600
80.254
198.960
40 1.2 08
641.940
504.770
1312.85 0
2141.000 2433.000
3290.000 3810.000
TOTAL
CLEARING I2t
(A2 s) 50 kA
AGENCY
APPROVALS
– • •
– • • •
– • • •
–
•
– • • •
– • • •
– • • •
– • • •
– • • •
– • • •
– • • •
– • • •
• •
• •
•
AMP
ORDERING
CODE
AMPERAGE
1 001.
2 002.
3 003.
3.5 03.5
4 004.
5 005.
6 006.
8 008.
10 010.
12 012.
15 015.
20 020.
25 025.
30 030.
littelfuse.com © 2017 Littelfuse POWR-GARD® Products
NUMBER
0SPF001.HXR SPF 1A-R 0794 58169 09
0SPF002.HXR SPF 2A-R 079 45816912
0SPF003.HXR SPF 3A-R 0 79 45816915
0SPF03.5HXR SPF 3-½A-R 07945880089
0SPF004.HXR SPF 4A-R 079 45816918
0SPF005.HXR SPF 5A-R 07945816921
0SPF006.HXR SPF 6A-R 07945 816924
0SPF008.HXR SPF 8A-R 07945816927
0SPF010.HXR SPF 10A-R 07945816930
0SPF012.HXR SPF 12A-R 07945 816 933
0SPF015.HXR SPF 15A-R 07945816936
0SPF020.HXR SPF 20A-R 07945817594
0SPF025.HXR SPF 25A-R 07945817597
0SPF030.HXR SPF 30A-R 0794 5817600
FUSE
LABEL ID
UPC
VOLTAGE
DC DC UL CSA
1000 20 0.394 0.602 0.410 0.554
1000 20 0.237 1.586 0.851 1.17 5
1000 20 0.11 1.504 0.824 5.007
1000 20
1000 20 0.06127 1.491 0.839 23.031
1000 20 0.04086 1.46 5 0.859 42.600
1000 20 0.0281 1.3 48 0.769 76.270
1000 20 0.0178 1.610 0.914 19 3.32 3
1000 20 0.0125 1.760 1.000 395.556
1000 20 0.00993 1.96 5 1.109 599.198
1000 20 0.007855 2.282 1.382 4 57.74 0
1000 20 0.0045 2.810 1.574 1173 .99 0
1000 50 0.00370 3.331 1.8 78 –
1000 50 0.00299 3.845 2.147 –
NOM COLD
RESISTANCE
RATING (kA)
(ohm)
INTERRUPTING
0.07787 1.3 65 0.778
WATTS LOSS
AT 100%
RATED
CURRENT (W)
2 of 5
WATTS LOSS
AT 80%
RATED
CURRENT (W)
TOTAL
CLEARING I2t
(A2 s) 10 kA
11.29 7
TOTAL
CLEARING I2t
(A2 s) 20 kA
0.554
4.755
7.8 82
11.29 7
23.031
42.600
80.254
198.960
40 1.2 08
641.940
504.770
1312.85 0
2141.000 2433.000
3290.000 3810.000
TOTAL
CLEARING I2t
(A2 s) 50 kA
AGENCY
APPROVALS
– • •
– • •
– • •
– • •
– • •
– • •
– • •
– • •
– • •
– • •
– • •
– • •
• •
• •
Rev:4-H-031317
Page 3
POWR-GARD® Fuse Datasheet
SPF SERIES SOLAR FUSES
Electrical Specification – Agency Requirements
AMPERAGE
RATING
1-30
100% of Amp
Rating per UL
Temperature
Stabilization
113% of Amp
Rating per IEC
60 Min 60 Max 60 Max 4 Max
OPENING TIME (MINUTES)
135% of Amp
Rating per UL
145% of Amp
Rating per IEC
200% of Amp
Rating per UL
Temperature Derating Curve (Temperature of Air Immediately Surrounding Fuse)
60
40
20
PERCENT OF UPRATING
0
0
20
40
60
PER
CENT OF DOW
NRATIN
G
-60°C -40°C -20°C 0°C 20°C 40°C 60°C 80°C 100°C 120°C 140°C
-76°F -40°F -4°F 32°F 68°F 104°F 140°F 176°F 212°F 248°F 284°F
AMBIENT TEMPERATURE
Recommended Process Parameters Soldering Parameters
WAVE PARAMETER LE AD F REE RECOMMENDATION
PR EHE AT:
TEMPERATURE MINIMUM: 130˚ C
TEMPERATURE MAXIMUM: —
PRE-HEAT TIME 75 Seconds Maximum
SOLDER POT TEMPERATURE 280˚ C Maximum
SOLDER DWELL TIME 270˚ C for 8 Seconds Maximum
COMPLETE CYCLE TIME 250 Seconds Maximum
littelfuse.com © 2017 Littelfuse POWR-GARD® Products
(Typical Industry Recommendation)
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Rev:4-H-031317
Page 4
POWR-GARD® Fuse Datasheet
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900
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600
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100
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50
40
30
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10
9
8
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6
5
4
3
2
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
1000
900
800
700
600
500
400
300
200
100
90
80
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
1000
900
800
700
600
500
400
300
200
100
90807060504030
20
10
9876543
2
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
1000
900
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100
90807060504030
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9876543
2
1
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0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
CURRENT IN AMPERES
TIME IN SECONDS
- 1A
- 2A
- 3A
- 6A
- 8A
- 10A
- 12A
- 4A
- 5A
- 3.5A
50
50
7
7
1
1
0.02
0.02
SPF SERIES SOLAR FUSES
Time Current Curve (1-12 A)
Time Current Curve (15-20 A)
1000
900
800
700
600
500
400
300
200
0.1
1000
900
800
700
600
500
400
300
TIMEINSECONDS
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.01
200
100
90
80
70
60
40
30
20
10
9
8
6
5
4
3
2
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.1
littelfuse.com © 2017 Littelfuse POWR-GARD® Products
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0.4
0.3
0.2
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1
0.9
0.8
0.7
0.6
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CURRENTINAMPERES
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9876543
20
1098765432
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0.8
0.7
0.6
0.5
0.4
0.3
0.2
100
90807060504030
1000
900
800
700
600
500
400
300
200
100
90
80
70
60
40
30
20
10
- 15A
- 20A
9
8
6
5
4
3
2
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.01
1000
900
800
700
600
500
400
300
200
100908070605040
30
Rev:4-H-031317
Page 5
POWR-GARD® Fuse Datasheet
50
50
7
7
1
1
0.02
0.02
SPF SERIES SOLAR FUSES
Time Current Curve (25-30 A)
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
1000
900
800
700
600
500
400
300
200
100
90
80
70
60
40
30
20
10
9
8
6
5
4
3
2
TIMEINSECONDS
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
20
10
2
1
9876543
90807060504030
- 25A
- 30A
1000
900
800
700
600
500
400
300
200
100
90
80
70
60
40
30
20
10
9
8
6
5
4
3
2
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
1000
900
800
700
600
500
400
300
200
100
0.01
0.2
0.1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
1
CURRENTINAMPERES
30
20
1098765432
300
200
100908070605040
0.01
1000
900
800
700
600
500
400
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Rev:4-H-031317
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