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Slow-Blow Chip Fuses
Slow-Blow Chip Fuses
Available in industry standard 1206 and 0603 chip sizes, Raychem slow-blow chip fuses help provide overcurrent protection on systems that experience large and frequent current surges as part of their normal operation. The Raychem slow-blow chip fuse's monolithic, multilayer design helps provide some of the highest current ratings available in the 1206 and 0603 footprints and enhances high-temperature performance in a wide range of circuit protection designs. The devices' small size, high reliability and strong arc suppression characteristics make them suitable for overcurrent protection of power supplies, capacitor filter banks, LCD (Liquid Crystal Display) backlight inverters, electric motors and portable electronics.
Benefits
* Time-delayed design prevents nuisance openings in pulsed and high inrush current applications * Small size with high-current ratings * Strong arc suppression characteristics
Features
* RoHS compliant * Halogen free
(refers to: Br 900ppm, Cl 900ppm, Br+Cl 1500ppm)
* Monolithic multilayer design * High-temperature performance * -55C to +125C operating temperature range
Applications
* Small motors systems * Portable electronics * Input power ports * Power over Ethernet (POE) * Test equipment * POL Converter Protection * Computer drives * Displays * Printers
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Table FS1 Clear Time Characteristics for Slow-Blow Chip Fuses
0603SFS Series
% of rated current 100% 200% 300% 800%(1.0A-1.5A) 800%(2.0A-5.0A) Clear time at 25C 4 hours (min.) 1 second (min.) 120 seconds (max.) 0.1 second (min.) 3 seconds (max.) 0.0005 second (min.) 0.05 seconds (max.) 0 0.001 second (min.) 0.05 seconds (max.)
1206SFS Series
% of rated current 100% 200% 300% 800%(1.0A-1.5A) 800%(2.0A-8.0A) Clear time at 25C 4 hours (min.) 1 second (min.) 120 seconds (max.) 0.1 second (min.) 3 seconds (max.) 0.0016 second (min.) 0.05 seconds (max.) 0.002 second (min.) 0.05 seconds (max.)
Table FS2
Typical Electrical Characteristics, Dimensions and Recommended Pad Layout for Slow-Blow Chip Fuses
0603 (1608mm) Slow-Blow Chip Fuses
Typical Electrical Characteristics Rated Nominal Nominal Current Cold DCR I2t (A) ()* (A2sec) 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.200 0.100 0.052 0.041 0.031 0.021 0.017 0.015 0.013 0.093 0.18 0.32 0.63 0.87 1.20 2.30 2.70 3.20 Max. Interrupt Ratings Voltage (VDC) 32 32 32 32 32 32 32 32 32 Current (A) 50 50 50 50 50 50 50 50 50
Shape and Dimensions Inch (mm)
0.0310.006 (0.800.15)
0.0630.006 (1.600.15)
Part Number
0.0310.006 (0.800.15)
0603SFS100F/32 0603SFS150F/32
0.0140.006 (0.360.15)
0603SFS200F/32 0603SFS250F/32
Recommended Pad Layout Inch (mm)
0.110 (2.80) 0.024 (0.60) 0.039 (1.00) 0.043 (1.09)
0603SFS300F/32 0603SFS350F/32 0603SFS400F/32 0603SFS450F/32 0603SFS500F/32
1206 (3216mm) Slow-Blow Chip Fuses
Typical Electrical Characteristics Rated Nominal Nominal Current Cold DCR I2t (A) ()* (A2sec) 1.0 1.25 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 7.0 8.0 0.360 0.200 0.150 0.082 0.070 0.032 0.028 0.024 0.020 0.016 0.014 0.011 0.010 0.009 0.11 0.22 0.23 0.63 0.90 1.20 1.60 2.20 3.60 5.30 6.40 8.50 10.00 16.90 Max. Interrupt Ratings Voltage (VDC) 63 63 63 63 32 32 32 32 32 32 24 24 24 24 Current (A) 50 50 50 50 50 50 50 50 50 50 50 60 60 60
Shape and Dimensions Inch (mm)
0.0630.008 (1.600.20)
0.1260.008 (3.200.20)
Part Number 1206SFS100F/63
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0.0200.010 (0.510.25)
1206SFS125F/63
0.0380.008 (0.970.20)
1206SFS150F/63 1206SFS200F/63 1206SFS250F/32 1206SFS300F/32 1206SFS350F/32
Recommended Pad Layout Inch (mm)
0.173 (4.40) 0.059 (1.50) 0.071 (1.80) 0.057 (1.45)
1206SFS400F/32 1206SFS450F/32 1206SFS500F/32 1206SFS550F/24 1206SFS600F/24 1206SFS700F/24 1206SFS800F/24
* Measured at 10% of rated current and 25C ambient temperature. Melting I2t at 0.001 sec clear time.
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RoHS Compliant, ELV Compliant
HF Halogen Free
Slow-Blow Chip Fuses
Figure FS1-FS4 Family Performance Curves
Figure FS1
0603SFS Average Time Current Curves
100
A B
10
C
E D
F
G
A=
1.0A 1.5A 2.0A 2.5A 3.0A 3.5A 4.0A 4.5A 5.0A
HI
B= C= D= E= F= G= H= I =
Clear Time (s)
1
0.1
0.01
0.001 1 10 100
Current (A)
Figure FS2
0 0603SFS It vs. t Curves
10,000 A= B= C= 1000 D= E= G= 100 I = 1.0A 1.5A 2.0A 2.5A 3.0A 4.0A 5.0A
I HG F E D B C A
F = 3.5A H = 4.5A
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I I2t (A2s)
10
1
0.1
0 0.01 0.001 0.01 0.1 1 10 100
Time (s)
Note: Curves are nominal
RoHS Compliant, ELV Compliant
HF Halogen Free
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Figure FS1-FS4 Family Performance Curves
Figure FS3
1206SFS Average Time Current Curves
100
... Cont'd
A
BC
D
E
F GH I J K L M N
A= B= C= D= 1.0A 1.2A 1.5A 2.0A 2.5A 3.0A 4.0A 5.0A 6.0A 7.0A
10
E= F= H=
G = 3.5A I = 4.5A
Clear Time (s)
1
J= L= M= 0.1
K = 5.5A
N = 8.0A
0.01
0.001 1 10 100 1000
Current (A)
Figure FS4
1206SFS It vs. t Curves
100000 A= C= D= E= F= 1000 1.0A 1.5A 2.0A 2.5A 3.0A H= I J= L= M= 4.0A 5.0A 6.0A 7.0A B = 1.25A 10000 = 4.5A
K = 5.5A
G = 3.5A
N = 8.0A
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I2t (A2s)
G F E D C B A
100
10 M L
N
K J I H
1
0.1
0.01 0.001
0.01
0.1
1
10
100
Time (s)
Note: Curves are nominal
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RoHS Compliant, ELV Compliant
HF Halogen Free
Slow-Blow Chip Fuses
Table FS3 Environmental Specifications for Slow-Blow Chip Fuses
Operating temperature Mechanical vibration Mechanical shock Thermal shock Resistance to soldering heat Solderability Moisture resistance Salt spray -55C to +125C Withstands 5-3000 Hz at 30 Gs when evaluated per Method 204 of MIL-STD-202 Withstands 1500 Gs, 0.5 millisecond half-sine pulses when evaluated per Method 213 of MIL-STD-202 Withstands 100 cycles from -65C to +125C when evaluated per Method 107 of MIL-STD-202 Withstands 60 seconds at +260C when evaluated per Method 210 of MIL-STD-202 Meets 95% minimum coverage requirement when evaluated per Method 208 of MIL-STD-202 Withstands 10 cycles when evaluated per Method 106 of MIL-STD-202 Withstands 48-hour exposure when evaluated per Method 101 of MIL-STD-202
Table FS4 Material Specifications for Slow-Blow Chip Fuses
Construction body material Termination material Fuse element Ceramic Silver, Nickel, Tin Silver
Figure FS5 Thermal Derating Current for Slow-Blow Chip Fuses
Temperature Effect on Current Rating
105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 -55
% De-rating
-35
-15
5
25
45
65
85
105
125
145
Maximum Operating Temperature (C)
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Table FS5 Electrical Specifications for Slow-Blow Chip Fuses
Insulation resistance after opening 20,000 minimum @ rated voltage. Fuse clearing under low voltage conditions may result in lower post-clearing insulation values. Under normal fault conditions Raychem fuses provide sufficient insulation resistance for circuit protection. Withstands 100% rated current at +25C ambient for 4 hours when evaluated per MIL-PRF-23419.
Current carrying capacity
Table FS6 Packaging Information for Slow-Blow Chip Fuses
Reel Quantity (pcs) 4,000 3,000 Carrier Tape Size 8.00 0.10mm 8.00 0.10mm Reels per Outside Shipment Box 5 5 Outside Shipment Boxes per Overpack 5 5
Size 0603 (1608) 1206 (3216)
Reel Diameter 178mm white plastic 178mm white plastic
Reel Width 9.0 0.5mm 9.0 0.5mm
Tape Type Plastic Plastic
RoHS Compliant, ELV Compliant
HF Halogen Free
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Figure FS6 Recommended Soldering Temperature Profile for Slow-Blow Chip Fuses
Soldering 10s Max. 260 Natural Cooling
Temperature (C)
230 40s Max.
150-180
Preheat 60 - 120s Min.
Time (s)
Recommended conditions for hand soldering: 1. Using hot air rework station that can reflow the solder on both terminations at the same time is strongly recommended, do not directly contact the chip termination with the tip of soldering iron. 2. Preheating: 150C, 60s (min). Appropriate temperature (max) of soldering iron tip/soldering time (max): 280C /10s or 350C / 3s. Maximum temperature of soldering iron tip/soldering time: 350C /9s or 400C / 8s.
Table FS7 Tape and Reel Material Characteristics for Slow-Blow Chip Fuses
Tolerance X 1mm; 0.X 0.5mm; 0.XX 0.2mm
Range Performance MVR Vicat softening temperature Elasticity at break Testing Method ASTM D1238 ASTM D1525 ASTM D638 Min. 3.60 97.8 50.0 Max. 4.40 -
Table FS8 Tape and Reel Specifications for Slow-Blow Chip Fuses
Dimension in inches (mm) Mark E1 F W P1 P0 P2 0603 (1608) 0.0690.004 0.1380.002 0.3180.004 0.1570.004 0.1570.004 0.0790.002 0.0590.004 0.0090.001 0.0360.004 0.0710.004 0.0330.004 (1.750.10) (3.500.05) (8.000.10) (4.000.10) (4.000.10) (2.000.05) (1.50+0.10/-0.00) (0.230.02) (0.920.10) (1.800.10) (0.850.10) 1206 (3216) 0.0690.004 0.1380.002 0.3180.004 0.1570.004 0.1570.004 0.0790.002 0.0590.004 0.039 max 0.0090.001 0.0710.004 0.1380.004 0.0500.004 (1.750.10) (3.500.05) (8.000.10) (4.000.10) (4.000.10) (2.000.05) (1.50+0.10/-0.00) (1.00 max) (0.230.02) (1.800.10) (3.500.10) (1.270.10)
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D0 D1 t A0 B0 K0
Figure FS7 Taped Component Dimensions for Slow-Blow Chip Fuses
D0 E1 P0 P2
t
F
W
B0
K0 D1
P1
A0
116
RoHS Compliant, ELV Compliant
HF Halogen Free
Slow-Blow Chip Fuses
Figure FS8 Reel Dimensions for Slow-Blow Chip Fuses
Dimension Description Hub outer diameter Reel inside width Reel outside width Tape width
Mark B W1 W2
Dimensions (mm) 60 9 11.4 8
W2
B
W1
Agency Approvals for Slow-Blow Chip Fuses
UL File # E197536
Part Numbering System for Slow-Blow Chip Fuses
1206 SF S 400 F / 24 -2
Packaging -2 = Tape and Reel Voltage Rating (V) Special Code F = RoHS Compliant M = Marked Rated Current 050 = 0.50 Amps 400 = 4 Amps Fuse Blow Type F = Fast Acting S = Slow Blow H = High Current SF = Surface Mount Fuse Size (1206, 0603, 0402)
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Warning :
All information, including illustrations, is believed to be accurate and reliable. Users, however, should independently evaluate the suitability of and test each product selected for their application. Tyco Electronics Corporation makes no warranties as to the accuracy or completeness of the information, and disclaims any liability regarding its use. Tyco Electronics' only obligations are those in the Tyco Electronics' Standard Terms and Conditions of Sale for this product, and in no case will Tyco Electronics be liable for any incidental, indirect, or consequential damages arising from the sale, resale, use, or misuse of the product. Specifications are subject to change without notice. In addition, Tyco Electronics reserves the right to make changes to materials or processing that do not affect compliance with any applicable specification without notification to Buyer.
RoHS Compliant, ELV Compliant
HF Halogen Free
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