2006 EDITION MAGNETIC COMPONENTS SELECTOR GUIDE
We reserve the right to change specifications without prior notice
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59
Notes: (1) Inductance values are rated at -40°C to +130°C operating temperature range with rated DC current flowing and
the operating ETop across the inductor.
(2) ETop is rated at 500 kHz except where designated otherwise.
(3) The control values of inductance are measured at the operating flux density equal or less than 10 gauss and without DC current.
(4) ETop is rated at 250 kHz.
(5) ETop is rated at 150 kHz.
Specifications
Operating Values Control Values (3)
Part L DC I DC ETop Case L w/o DC DC DC
Number µH (1) Amps V-µS (2) Size L o Resistance Resistance
µH ± 20% m, Nom. m Max.
HM77 - 10001 1.01 3.40 0.532 1 1.10 11.00 12.5
HM77 - 20001 6.20 1.40 1.33 1 7.00 60.30 70
HM77 - 30001 17.6 1.00 2.40 1 22.7 109.00 125
HM77 - 40002 3.80 4.80 1.76 2 5.20 17.0 19.1
HM77 - 50002 9.40 2.80 2.70 2 12.3 37.80 43.4
HM77 - 60002 29.7 1.40 4.60 2 35.3 141.00 166
HM77 - 70002 114 0.94 10 2 167 330.00 380
HM77 - 80003 2.50 8.00 1.77 3 3.80 7.20 8.30
HM77 - 90003 5.10 5.40 2.51 3 7.50 14.30 17.7
HM77 - 10003 16.2 2.70 4.29 3 21.9 54.70 63
HM77 - 11003 58.1 1.30 7.83 3 73 233.00 290
HM77 - 12003 192 0.90 15.7 3 292 472.00 560
HM77 - 13003 383 0.72 23.5 3 672 750.00 862
HM77 - 14004 0.91 13.3 1.035 4 1.25 4.56 5.70
HM77 - 15004 1.32 11.5 1.33 4 2.10 4.56 5.70
HM77 - 16004 4.90 7.80 3.04 4 7.90 10.50 12.4
   9.00 5.50 4.06 4 14 19.30 22.3
HM77 - 18004 29.1 2.70 6.90 4 40.5 75.80 85
HM77 - 19004 645 0.74 36.5 4 1134 1040 1250
HM77 - 30004 33 3.0 9.50 4 48 48.5 59
HM77 - 20005 1.75 10.9 1.83 5 2.80 5.68 6.90
HM77 - 21005 2.50 11.4 2.23 5 4.20 6.19 7.50
HM77 - 22006 2.03 13 3.30 6 2.70 5.60 6.80
HM77 - 23006 3.50 12.4 3.13 6 6.50 7.54 8.7
HM77 - 24006 4.70 10.4 3.58 6 8.40 8.30 10.0
HM77 - 25006 9.30 7.20 4.92 6 16 20.05 23.0
HM77 - 26006 16.1 5.10 6.27 6 25.9 30.3 32
HM77 - 27006 50 2.60 10.5 6 72.9 115 130
HM77 - 28006 1070 0.710 54.4 6 1950 1480 1700
HM77 - 29006 68 3.00 9.50 6 122 85 102
HM77 - 31007 2.5 11.4 2.23 7 4.20 5.20 6.20
HM77 - 32007 1.68 13.9 1.83 7 2.80 3.60 4.0
HM77 - 33010 5.2 15.4 5.21 10 10.5 6.20 7.40
HM77 - 34010 77 2.7 52.8(4) 10 84.6 90 110
HM77 - 35010 38 3.0 29.7(4) 10 49 50 70
HM77 - 36010 114 2.22 62.7(4) 10 121 100 120
HM77 - 37010 191 1.50 72.6 (5) 10 275 250 290
HM77 - 38010 115 1.81 75.9(5) 10 159 190 220
HM77 - 39010 38 3.00 42.9(5) 10 52 80 100
Operating Temperature Range -40°C to +130°C
Ambient Temperature, Maximum 80°C
Insulation System Class B, 130°C
Temperature Rise, Maximum 50°C

Electrical / Environmental
Low Profile Surface Mount Inductors
RoHS
Compliant for
‘LF’ Models
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MAGNETIC COMPONENTS SELECTOR GUIDE 2006 EDITION
We reserve the right to change specifications without prior notice.
60
Schematic
Ordering Information
Outline Dimensions (Inch/mm) / Packaging
Case Size
Model Series
Model Description Optional Package
TR = Tape & 13” Reel
No code used for tubes (Standard)
Lead-Free Option
LF = Lead - Free
(No code used for non lead-free part)
HM77 1000 1 LF TR
Figure 1 Figure 2 Figure 3