MODEL HM50 & HM51 Miniature Power Inductors FEATURES AND BENEFITS • • • • • • Low DCR, high current High saturation flux density, optimum current handling capability Low cost Small size axial leads Low temperature rise Wound ferrite design, insulated with PVC sleeve APPLICATIONS • Designed for use with: – Linear Technology models LT1073, LT1173 – National Semiconductor model LM2574 – Unitrode model UC2575 • Buck or boost, DC to DC power conversion • SCR and triac controls • EMI suppression • Output ripple current filters 6 ELECTRICAL / ENVIRONMENTAL Inductance Range HM50: 3.9µH to 18,000µH HM51: 3.9µH to 10,000µH ±10% -55°C to +105°C Class B, 130°C Standard Tolerance Operating Temperature Range Insulation System Specifications subject to change without notice. Last update: 03/17/03. 6-89 Model HM50 & HM51 SPECIFICATIONS Part Number HM50-3R9K HM50-4R7K HM50-5R6K HM50-6R8K HM50-8R2K HM50-100K HM50-120K HM50-150K HM50-180K HM50-220K HM50-270K HM50-330K HM50-390K HM50-470K HM50-560K HM50-680K HM50-820K HM50-101K HM50-121K HM50-151K HM50-181K HM50-221K HM50-271K HM50-331K HM50-391K HM50-471K HM50-561K HM50-681K HM50-821K HM50-102K HM50-122K HM50-152K HM50-182K HM50-222K HM50-272K HM50-332K HM50-392K HM50-472K HM50-562K HM50-682K HM50-822K HM50-103K HM50-123K Inductance Nominal (1) µH ±10% 3.9 4.7 5.6 6.8 8.2 10 12 15 18 22 27 33 39 47 56 68 82 100 120 150 180 220 270 330 390 470 560 680 820 1000 1200 1500 1800 2200 2700 3300 3900 4700 5600 6800 8200 10000 12000 DC Resistance .019 .022 .024 .026 .028 .033 .037 .040 .044 .050 .056 .076 .094 .109 .140 .131 .152 .208 .283 .340 .362 .430 .557 .665 .772 1.15 1.27 1.61 1.96 2.30 2.65 3.45 4.03 4.48 5.40 6.56 8.63 9.66 13.9 16.3 20.8 26.4 29.9 Rated IDC (2) Amps 3.60 3.40 3.20 3.10 3.00 2.80 2.60 2.50 2.40 2.23 2.10 1.81 1.63 1.51 1.33 1.31 1.30 1.10 0.94 0.86 0.83 0.76 0.67 0.61 0.57 0.47 0.44 0.40 0.36 0.33 0.30 0.27 0.25 0.23 0.21 0.20 0.17 0.16 0.13 0.12 0.11 0.10 0.09 INCR IDC (3) Amps 7.30 6.30 5.60 5.30 4.50 4.10 3.60 3.30 3.00 2.70 2.50 2.20 2.00 1.80 1.70 1.50 1.40 1.20 1.10 1.00 0.95 0.86 0.77 0.70 0.64 0.59 0.54 0.49 0.44 0.40 0.35 0.33 0.29 0.27 0.24 0.22 0.20 0.18 .166 .151 .136 .125 .114 Notes: (1) Inductance measured at 1kHz without DC current. (2) The rated DC current is based on an approximate 20°C temperature rise. (3) The incremental current (INCR I) is the approximate current at which the inductance will be decreased by 5% from its initial (zero DC) value due to saturation. 6-90 Model HM50 & HM51 SPECIFICATIONS Part Number HM50-153K HM50-183K HM51-3R9K HM51-4R7K HM51-5R6K HM51-6R8K HM51-8R2K HM51-100K HM51-120K HM51-150K HM51-180K HM51-220K HM51-270K HM51-330K HM51-390K HM51-470K HM51-560K HM51-680K HM51-820K HM51-101K HM51-121K HM51-151K HM51-181K HM51-221K HM51-271K HM51-331K HM51-391K HM51-471K HM51-561K HM51-681K HM51-821K HM51-102K HM51-122K HM51-152K HM51-182K HM51-222K HM51-272K HM51-332K HM51-392K HM51-472K HM51-562K HM51-682K HM51-822K HM51-103K Inductance Nominal (1) µH ±10% 15000 18000 3.9 4.7 5.6 6.8 8.2 10 12 15 18 22 27 33 39 47 56 68 82 100 120 150 180 220 270 330 390 470 560 680 820 1,000 1,200 1,500 1,800 2,200 2,700 3,300 3,900 4,700 5,600 6,800 8,200 10,000 DC Resistance 42.5 48.3 .007 .008 .011 .011 .013 .017 .019 .022 .023 .026 .027 .032 .033 .035 .037 .047 .060 .090 .113 .129 .150 .162 .208 .212 .281 .380 .420 .548 .655 .844 1.04 1.18 1.56 2.00 2.06 2.63 2.75 3.19 3.92 5.69 6.32 7.30 Rated IDC (2) Amps 0.08 0.07 8.40 7.90 6.70 6.70 6.20 5.40 5.10 4.70 4.70 4.40 4.30 4.00 3.90 3.80 3.70 3.30 2.90 2.30 2.10 2.00 1.80 1.76 1.55 1.53 1.33 1.15 1.10 0.96 0.87 0.77 0.70 0.65 0.57 0.50 0.50 0.44 0.43 0.40 0.36 0.30 0.28 0.26 INCR IDC (3) Amps .098 .091 15.5 13.9 12.6 11.6 9.89 8.70 8.21 7.34 6.64 6.07 5.36 4.82 4.36 3.98 3.66 3.31 3.10 2.79 2.54 2.22 1.98 1.89 1.63 1.51 1.39 1.24 1.17 1.05 0.97 0.87 0.79 0.70 0.64 0.58 0.53 0.47 0.43 0.39 0.359 0.322 0.293 0.266 Notes: (1) Inductance measured at 1kHz without DC current. (2) The rated DC current is based on an approximate 20°C temperature rise. (3) The incremental current (INCR I) is the approximate current at which the inductance will be decreased by 5% from its initial (zero DC) value due to saturation. 6-91 Model HM50 & HM51 6 OUTLINE DIMENSIONS (Inch/mm) #20 GA Plated Leads HM50: .63 Max. 16.0 HM51: .906 Max. 23.0 1.25 Min. 31.75 Typ. HM50: .984±.079 Typ. 25.0±2.0 HM50: .295 7.50 Max. HM51: 1.26±.079 Typ. 32.0±2.0 HM51: .492 Max. 12.50 ORDERING INFORMATION HM50 330 K Model Series Inductance Code: First 2 digits are significant. Last digit denotes the number of trailing zeros. Values below 10µH, "R" denotes the decimal point. 6-92 Inductance Tolerance: J = 5% K = 10% M = 20% Model HM50 & HM51