MELF-SMD 1.5 Watt LL5918B thru LL5956B Use Advantages Low cost replacement for plastic SMB zener diodes. Occupies the same footprint as SMB, no PC board rework. LL-41-MELF vs. SMB - - savings. up to 50% are. possible. . *~ . Used where low cost, s sutge, Space and performance are importaiit. Compatible: with all major automatic. pick and place SM mounting equipment. _May be used on ceramic boards along with high temperature IR solder reflow. Zener Diodes Features LL-41 MELF (DO 213AB High Surge capability Surface Mount Package Humidity proof glass (nominal dimensions) hexagonal die Thermally matched system No thermal fatigue No applications restrictions = e Sigma Bond plated contacts O16 one ' inside dia e 100% guaranteed solderability Length = 4mm ) Dia. Problem free assembly 5.0 mm 2.4 mm e Six Sigma.quality e DO-41 leaded 1N glass types available Absolute Maximum Ratings Symbol Value Unit BKC Power Dissipation at T= 75 C Pit 1.5 Watts BKC Junction Temperature T, 200 C Operating and Storage Temperature Range Top ast -65 to +200 C Exponential peak power surge for 1 mSec.@ 50% of 1, Pi 100 Watts Characteristics at T = 25 C Symbol Limit Unit BKC Power Derating at end cap temperature = 75 C Por 42 (Max) mWPPC BKC Forward Voltage at I. = 1.0A Vv, 1.2 (Max) Volts DO-41 leaded glass package available, substitute a 1N prefix instead of the MELF LL prefix. DETAILED SPECIFICATIONS ON REVERSE . BKC Semiconductors Incorporated Mm 1179983 O0004b2 594 me 6 Lake Street Lawrence, MA USA 01841 i te AAA Telephone (508) 681-0392 * FAX (508) 681-9135MELF-SMD 1.5 Watt A Zener Diodes LL5918B LL- 41 thru Detail LL5956B Specifications Nominal Test Maximum Maximum Typical Maximum Maximum Zener Current Zener impedance Reverse Leakage Current Surge Regulator Voltage Current Current (Vz) @ tz les (421) @ ley (Zz) @ lz lax (tr) @VR (lzsea) (lem) Type Volts mA Ohms Ohms mA HA Volts Amps mA LL5918B 5.1 73.5 4.0 350 1.0 5.0 2.0 6.5 294 LL5919B 5.6 66.9 2.0 250 1.0 5.0 3.0 6.0 267 LL5920B 6.2 60.5 2.0 200 1.0 9.0 4.0 5.5 241 LL5921B 6.8 55.17 2.5 200 1.0 5.0 5.2 5 220 LL5922B 7.5 50.0 3 400 0.5 5.0 6.5 45 200 LL5923B 8.2 45.7 3.5 400 0.5 5.0 6.8 3.9 182 LL5924B 9.4 41.2 4.0 500 0.5 5.0 1.0 3.4 164 LL5925B 10 37.5 4.5 500 0.25 5.0 8.0 3.0 150 LL5926B 41 34.1 5.5 550 0.25 1.0 8.4 2.6 136 LL5927B 12 31.2 6.5 550 0.25 1.0 9.1 2.4 125 LL5928B 13 28.8 7 550 0.25 1.0 9.9 2.2 115 LL5929B 15 25.0 9 600 0.25 1.0 11.4 1.8 100 LL5930B 16 23.4 10 600 0.25 1.0 12.2 1.6 93 LL5931B 18 20.8 12 650 0.25 1.0 13.7 1.4 83 LL5932B 20 18.7 14 650 0.25 1.0 15.2 1.2 75 LL5933B 22 17.0 17.5 650 0.25 1.0 16.7 4.1 68 LL5934B 24 15.6 19 700 0.25 1.0 18.2 .90 62 LL5935B 2 13.9 23 700 0.25 1.0 20.6 .80 55 LL5936B 30 12.5 26 750 0.25 1.0 22.8 A5 50 LL5937B 33 11.4 33 800 0.25 1.0 25.1 66 45 LL5938B 36 10.4 38 850 0.25 1.0 27.4 .60 41 LL5939B 39 9.6 45 900 0.25 1.0 29.7 4 38 LL5940B 43 8.7 53 950 0.25 1.0 32.7 48 34 LL5941B 4/ 8.0 67 1000 0.25 1.0 35.8 45 31 LL5942B 51 1.3 70 1100 0.25 1.0 38.8 42 29 LL5943B 56 6.7 86 1300 0.25 1.0 42.6 a9 26 LL5944B 62 6.0 100 1500 0,25 1.0 47.1 oO 24 LL5945B 68 5.5 120 7700 0.25 1.0 51.7 32 22 LL5946B 15 5.0 140 2000 0.25 1.0 56.0 29 20 LL59478 82 46 160 2900 0.25 1.0 62.2 26 18 LL5948B 94 41 200 3000 0.25 1.0 69.2 23 16 LL5949B 400 3.7 250 3100 0.25 1.0 76.0 20 15 LL5950B 110 3.4 300 4000 0.25 1.0 83.6 19 13 LL5951B 120 3.1 380 4500 0.25 1.0 91.2 18 12 LL5952B 130 29 450 5000 0.25 1.0 98.8 16 11 LL5953B 150 2.5 600 6000 0.25 1.0 114.0 14 10 LL5954B 160 2.3 700 6500 0.25 1.0 121.6 42 9.0 LL5955B 180 2.1 900 7000 0.25 1.0 136.8 10 8.0 LL5956B 200 1.9 1200 8000 0.25 1.0 152 08 7.0 Nominal zener voltage is 5% tolerance, with A suffix is +10% tolerance and with no suffix is 20% . Other tolerances available upon request, please consult factory. 6 Lake Street BKC Semiconductors Lawrence MA Incorporated USA 01841 a Telephone (508) 681-0392 * FAX (508) 681-9135 me 1179983 0000463 420