6610 Cobra Way
San Diego, CA 92121 Date of Issue: 10-14-10
Page 1 of 3 Phone: (858) 481-0210 www.aem-usa.com
SolidMatrixTM 1218 Series High Current Surface Mount Fuses
Features:
• Glass ceramic monolithic structure
• Sliver fusing element and silver end metallization with nickel and Sn/Pb plating
• Low DC resistance (low power dissipation)
• Symmetrical design with marking on both sides (opti on al)
• Operating temperature: -55°C to +125 °C
Electrical Characteristics:
% of current rating Clear-time at 25 oC
100% 4 hours min.
(Fuse body temperature < 125 oC)
300% 0.005-1.0 seconds
(0.010-5.0 seconds for 4.0 amp rating)
600% 0.0005-0.003 seconds
1000% 0.0001-0.001 seconds
Interrupting rating 300A at rated voltage
Marking Code (Optional): 4.0A: M, 10.0A: Q, 15.0A: Y, 20.0A:Z
Ordering Information:
Part Number Current Rating(A) Voltage Rating
(VDC) Nominal Cold DCR
(Ω)a
F1218HR040V048T 4.0 48 0.025
F1218HR100V048T 10.0 48 0.009
F1218HR150V048T 15.0 48 0.006
F1218HR200V048T 20.0 48 0.0035
a. Measured at = 10% of rated current and 25ºC ambient
Shape and Di mens ions:
0.082 ± 0.008
(2.08 ± 0.20)
0.030 ± 0.01
(0.76 ± 0.25)
0.120 ± 0.008
(3.20 ± 0.20)
0.176 ± 0.008
(4.47 ± 0.20)
0.082 ± 0.008
(2.08 ± 0.20)
0.030 ± 0.01
(0.76 ± 0.25)
0.120 ± 0.008
(3.20 ± 0.20)
0.176 ± 0.008
(4.47 ± 0.20)
Recommended Land Pattern:
0. 173
(4.40)
0.080
(2.03)
0.177
(4.50)
Inch (mm)
6610 Cobra Way
San Diego, CA 92121 Date of Issue: 10-14-10
Page 2 of 3 Phone: (858) 481-0210 www.aem-usa.com
Average Clear Time
AEM F1218HR Series Chip Fuse
0.000001
0.00001
0.0001
0.001
0.01
0.1
1
10
100
10 100 1000
Current (A)
Clear Time (Sec)
10 A 15 A
6610 Cobra Way
San Diego, CA 92121 Date of Issue: 10-14-10
Page 3 of 3 Phone: (858) 481-0210 www.aem-usa.com
I Square t vs. Clear Time
F1218HR Series
1
10
100
1000
10000
100000
0.00001 0.0001 0.001 0.01 0.1 1 10
Clear Time (Seconds)
I Square t (A^2 Sec)
15 A
10 A
