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7 accu-guard ? ii smd thin-film fuse accu-guard ? ii is a version of accu-guard ? fuses for a wider range of current and voltage ratings. con struct ed on alumina substrates, accu-guard ? ii fuses display superior electrical, mechanical and en vi ron men tal properties. accu-guard ? ii dimensions are standard 0402, 0603, 0805, 1206 and 0612 chip sizes, see page 2. electrical specifications operating temperature: -55c to +125c current carrying capacity: for f0402e and f0603e at -55c 107% of rating, at +25c 100% of rating, at +125c 80% of rating. for f0603c at -55c is 107% of rating, at +25c 100% of rating, at +85c 90% of rating, at +125c 75% of rating. current resistance voltage drop fusing current pre-arc rated type part number rating 10% x i rated, 25c @1 x i rated, 25c (within 5 sec), 25c i 2 t @ 50a voltage a (max.) mv (max.) a a 2 -sec v f0402e0r25fstr 0.25 0.650 220 0.625 0.00005* 32 f0402e0r50fstr 0.50 0.250 180 1.25 0.0003 32 f0402e f0402e0r75fstr 0.75 0.200 180 1.875 0.003 32 f0402e1r00fstr 1.00 0.130 160 2.50 0.008 32 f0402e1r50fstr 1.50 0.060 140 3.75 0.03 32 f0402e2r00fstr 2.00 0.040 120 5.00 0.06 32 f0603e0r25fstr 0.25 0.650 220 0.625 0.00005* 32 f0603e0r37fstr 0.375 0.450 220 0.940 0.0001 32 f0603e0r50fstr 0.50 0.250 180 1.25 0.0003 32 f0603e0r75fstr 0.75 0.200 180 1.875 0.003 32 f0603e1r00fstr 1.00 0.130 160 2.50 0.008 32 f0603e f0603e1r25fstr 1.25 0.090 140 3.125 0.01 32 f0603e1r50fstr 1.50 0.060 140 3.75 0.03 32 f0603e1r75fstr 1.75 0.050 120 4.375 0.04 32 f0603e2r00fstr 2.00 0.040 120 5.00 0.06 32 f0603e2r50fstr 2.50 0.035 100 6.25 0.12 32 f0603e3r00fstr 3.00 0.030 100 7.50 0.25 32 f0603c0r25fwtr 0.25 0.800 280 0.50 0.00003* 32 f0603c0r37fwtr 0.375 0.500 280 0.75 0.0001 32 F0603C0R50FWTR 0.50 0.320 280 1.00 0.0002 32 f0603c0r75fwtr 0.75 0.300 280 1.50 0.0015 32 f0603c1r00fwtr 1.00 0.200 240 2.00 0.004 32 f0603c f0603c1r25fwtr 1.25 0.170 240 2.50 0.007 32 f0603c1r50fwtr 1.50 0.110 240 3.00 0.012 32 f0603c1r75fwtr 1.75 0.090 240 3.50 0.02 24 f0603c2r00fwtr 2.00 0.075 240 4.00 0.03 24 f0603c2r50fwtr 2.50 0.055 200 5.00 0.05 16 f0603c3r00fwtr 3.00 0.045 200 6.00 0.1 16 f0805b0r25fw/str 0.25 0.750 280 0.50 0.00003* 63 f0805b0r50fw/str 0.50 0.350 280 1.00 0.0002 63 f0805b0r75fw/str 0.75 0.270 280 1.50 0.001 63 f0805b1r00fw/str 1.00 0.220 280 2.00 0.003 63 f0805b f0805b1r25fw/str 1.25 0.170 280 2.50 0.007 63 f0805b1r50fw/str 1.50 0.120 240 3.00 0.010 63 f0805b2r00fw/str 2.00 0.080 220 4.00 0.030 63 f0805b2r50fw/str 2.50 0.060 220 5.00 0.050 63 f0805b3r00fw/str 3.00 0.050 220 6.00 0.10 63 f1206b0r25fw/str 0.25 0.750 280 0.50 0.00003 63 f1206b0r50fw/str 0.50 0.350 280 1.00 0.0002 63 f1206b f1206b1r00fw/str 1.00 0.180 240 2.00 0.003 63 f1206b1r50fw/str 1.50 0.120 240 3.00 0.010 63 f1206b2r00fw/str 2.00 0.080 220 4.00 0.030 63 f1206b3r00fw/str 3.00 0.050 220 6.00 0.10 63 f0612d f0612d4r00fwtr 4.00 0.040 260 10 0.10 32 f0612d5r00fwtr 5.00 0.025 200 12.5 0.25 32 for f1206b and f0805b at -55c is 107% of rating, at +25c 100% of rating, at +85c 93% of rating, at +125c 90% of rating. for f0805b 2.50a and 3.00a at +85c 90% of rating, at +125c 90% of rating. interrupting rating: 50a. insulation resistance: >20m guaranteed (after fusing at rated voltage). for f0612d at -55c 107% of rating, at +25c 100% of rating, at +85c 80% of rating, at +125c 75% of rating. *current is limited to less than 50a at 32v due to internal fuse resistance.
8 accu-guard ? ii smd thin-film fuse test conditions requirement solderability components completely immersed in a terminations to be we ll tinned solder bath at 235 5c for 2 secs. no visible damage leach resistance completely immersed in a solder bath dissolution of terminat ion at 260 5c for 60 secs. 2 5% of area r/r<10% storage 12 months minimum with components good solderability stored in as received packaging. shear components mounted to a substrate. no visible damage a force of 5n applied normal to the line joining the terminations and in a line parallel to the substrate. rapid change of components mounted to a substrate. no visible damage temperature 50 cycles -55c to +125c. r/r<10% vibration per mil-std-202f no v isible damage method 201a and r/r<10% method 204d condition d. bend tested as shown in diagram no visible da mage r/r<10% load life 25c, rated current, 20,000 hrs. no visible dam age f0805b, f1206b r/r<10% environmental characteristics 45mm 45mm 3 mm deflection
9 accu-guard ? ii lead-free smd thin-film fuse 0.1 1 10 100 current, amp pre- a rc time, sec 10 -2 10 -1 10 -3 1 10 10 -6 10 -5 10 -4 2.0 a 1.5 a 1.0 a 0.5 a 0.25 a 0.75 a fuse time C current characteristics for type f0402e (typical)
10 accu-guard ? ii lead-free smd thin-film fuse 100 10 1 10 -1 10 -2 10 -3 10 -4 10 -5 10 -6 0 10 20 30 40 50 60 current, amp pre- arc i 2 t, a 2 sec 2.0 a 1.5 a 1.0 a 0.5 a 0.2 5 a 0.7 5 a fuse pre-arc joule integrals vs current for type f0402e (typical)
11 accu-guard ? ii lead-free smd thin-film fuse 0 0 0 0 0 0 0 100 0 0 0 0 0 0 0 pre-arc time, sec pre- a rc i 2 t, a 2 sec 10 -2 10 -1 10 -3 1 100 10 -6 10 -5 10 -4 10 10 -6 10 -5 10 -4 10 -3 10 -2 10 -1 1 10 2.0 a 1.5 a 1.0 a 0.5 a 0.25 a 0.75 a fuse pre-arc joule integrals vs pre-arc time for type f0402e (typical)
12 accu-guard ? ii lead-free smd thin-film fuse 10 1 10 -1 10 -2 10 -3 10 -4 10 -5 10 -6 0.1 1 10 100 current, amp pre- arc time, sec 2.0 a 2.5 a 3.0 a 1.5 a 1.75 a 1.0 a 0.5 a 0.7 5 a 0.375 a 0.2 5 a 1.25 a fuse time C current characteristics for type f0603e (typical)
13 accu-guard ? ii lead-free smd thin-film fuse 010 203040 5060 current, amp pre-arc i 2 t, a 2 sec 100 10 1 10 -1 10 -2 10 -3 10 -4 10 -5 10 -6 3.0a 2.5a 2.0a 1.75a 1.5a 1.25a 1.0a 0.75a 0.5a 0.375a 0.25a fuse pre-arc joule integrals vs current for type f0603e (typical)
14 accu-guard ? ii lead-free smd thin-film fuse pre-arc time, sec pre- arc i 2 t, a 2 sec 10 -2 10 -1 10 -3 1 100 10 -6 10 -5 10 -4 10 10 -6 10 -5 10 -4 10 -3 10 -2 10 -1 110 3.0a 2.5a 2.0a 1.75a 1.5a 1.25a 1.0a 0.75a 0.5a 0.375a 0.25a fuse pre-arc joule integrals vs pre-arc time for type f0603e (typical)
15 accu-guard ? ii smd thin-film fuse 0.15a 0.25a 0.375a 0.50a 0.75a 1.00a 1.25a 1.5a 1.75a 2.0a 2.5a 3.0a 10 -1 1 10 0.1 1 10 current, amp pre-arc time, seconds 100 10 -2 10 -3 10 -4 10 -5 10 -6 fuse time - current characteristics for type f0603c (typical)
16 accu-guard ? ii smd thin-film fuse 10 -1 1 10 100 pre-arc i 2 t, a 2 sec current, amp 10 -2 10 -3 10 -4 10 -5 10 -6 50 40 30 20 10 0 60 3.00a 2.50a 2.00a 1.75a 1.50a 1.25a 1.00a 0.75a 0.50a 0.375a 0.25a 0.15a fuse pre-arc joule integrals vs. current for type f0603c (typical)
17 accu-guard ? ii smd thin-film fuse 10 -1 1 10 100 pre-arc i 2 t, a 2 sec pre-arc time, seconds 10 -2 10 -3 10 -4 10 -5 10 -6 10 -7 10 -6 10 -5 10 -4 10 -3 10 -2 10 -1 110 3.00a 2.50a 2.00a 1.75a 1.50a 1.25a 1.00a 0.75a 0.50a 0.375a 0.25a 0.15a fuse pre-arc joule integrals vs. pre-arc time for type f0603c (typical)
18 accu-guard ? ii smd thin-film fuse 0.15a 0.25a 0.50a 0.75a 1.00a 1.25a 1.5a 2.0a 2.5a 3.0a 10 -1 1 10 0.1 1 10 current, amp pre-arc time, seconds 100 10 -2 10 -3 10 -4 10 -5 10 -6 fuse time - current characteristics for types f0805b and f1206b (typical)
19 accu-guard ? ii smd thin-film fuse 10 -1 1 10 100 pre-arc i 2 t, a 2 sec current, amp 10 -2 10 -3 10 -4 10 -5 10 -6 50 40 30 20 10 0 60 3.00a 2.50a 2.00a 1.50a 1.25a 1.00a 0.75a 0.50a ? 0.25a 0.15a fuse pre-arc joule integrals vs. current time for types f0805b and f1206b (typical)
20 accu-guard ? ii smd thin-film fuse 10 -1 1 10 100 pre-arc i 2 t, a 2 sec pre-arc time, seconds 10 -2 10 -3 10 -4 10 -5 10 -6 10 -7 10 -6 10 -5 10 -4 10 -3 10 -2 10 -1 110 3.00a 2.50a 2.00a 1.50a 1.25a 1.00a 0.75a 0.50a 0.25a 0.15a fuse pre-arc joule integrals vs. pre-arc time for types f0805b and f1206b (typical)
21 accu-guard ? ii smd thin-film fuse 10 -1 1 10 110 current, amp pre-arc time, seconds 100 10 -2 10 -3 10 -4 10 -5 4.0a 5.0a fuse time - current characteristics for type f0612d (typical)
22 accu-guard ? ii smd thin-film fuse 10 -1 1 10 100 1000 pre-arc i 2 t, a 2 sec pre-arc time, seconds 10 -2 10 -3 10 -4 10 -5 110 10 -6 10 -5 10 -4 10 -3 10 -2 10 -1 ? ? 5.00a 4.00a fuse pre-arc joule integrals vs. pre-arc time for type f0612d (typical)
23 accu-guard ? ii smd thin-film fuse 10 -1 1 10 100 1000 pre-arc i 2 t, a 2 sec current, amp 10 -2 10 -3 10 -4 10 -5 50 40 30 20 10 0 60 5.00a 4.00a fuse pre-arc joule integrals vs. current for type f0612d (typical)

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