www.bitechnologies.com
MAGNETIC COMPONENTS SELECTOR GUIDE 2007/08 EDITION
We reserve the right to change specifications without prior notice.
84
HM77 - 10001LF 1.01 3.40 0.532 1 1.10 11.00 12.5
HM77 - 20001LF 6.20 1.40 1.33 1 7.00 60.30 70
HM77 - 30001LF 17.6 1.00 2.40 1 22.7 109.00 125
HM77 - 40002LF 3.80 4.80 1.76 2 5.20 17.0 19.1
HM77 - 50002LF 9.40 2.80 2.70 2 12.3 37.80 43.4
HM77 - 60002LF 29.7 1.40 4.60 2 35.3 141.00 166
HM77 - 70002LF 114 0.94 10 2 167 330.00 380
HM77 - 80003LF 2.50 8.00 1.77 3 3.80 7.20 8.30
HM77 - 90003LF 5.10 5.40 2.51 3 7.50 14.30 17.7
HM77 - 10003LF 16.2 2.70 4.29 3 21.9 54.70 63
HM77 - 11003LF 58.1 1.30 7.83 3 73 233.00 290
HM77 - 12003LF 192 0.90 15.7 3 292 472.00 560
HM77 - 13003LF 383 0.72 23.5 3 672 750.00 862
HM77 - 14004LF 0.91 13.3 1.035 4 1.25 4.56 5.70
HM77 - 15004LF 1.32 11.5 1.33 4 2.10 4.56 5.70
HM77 - 16004LF 4.90 7.80 3.04 4 7.90 10.50 12.4
  LF 9.00 5.50 4.06 4 14 19.30 22.3
HM77 - 18004LF 29.1 2.70 6.90 4 40.5 75.80 85
HM77 - 19004LF 645 0.74 36.5 4 1134 1040 1250
HM77 - 30004LF 33 3.0 9.50 4 48 48.5 59
HM77 - 20005LF 1.75 10.9 1.83 5 2.80 5.68 6.90
HM77 - 21005LF 2.50 11.4 2.23 5 4.20 6.19 7.50
HM77 - 22006LF 2.03 13 3.30 6 2.70 5.60 6.80
HM77 - 23006LF 3.50 12.4 3.13 6 6.50 7.54 8.7
HM77 - 24006LF 4.70 10.4 3.58 6 8.40 8.30 10.0
HM77 - 25006LF 9.30 7.20 4.92 6 16 20.05 23.0
HM77 - 26006LF 16.1 5.10 6.27 6 25.9 30.3 32
HM77 - 27006LF 50 2.60 10.5 6 72.9 115 130
HM77 - 28006LF 1070 0.710 54.4 6 1950 1480 1700
HM77 - 29006LF 68 3.00 9.50 6 122 85 102
HM77 - 31007ALF 2.5 11.4 2.23 7 4.20 5.20 6.20
HM77 - 32007ALF 1.68 13.9 1.83 7 2.80 3.60 4.0
HM77 - 33010ALF 5.2 15.4 5.21 10 10.5 6.20 7.40
HM77 - 34010ALF 77 2.7 52.8(4) 10 84.6 90 110
HM77 - 35010ALF 38 3.0 29.7(4) 10 49 50 70
HM77 - 36010ALF 114 2.22 62.7(4) 10 121 100 120
HM77 - 37010ALF 191 1.50 72.6 (5) 10 275 250 290
HM77 - 38010ALF 115 1.81 75.9(5) 10 159 190 220
HM77 - 39010ALF 38 3.00 42.9(5) 10 52 80 100
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.
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
2007/08 EDITION MAGNETIC COMPONENTS SELECTOR GUIDE
We reserve the right to change specifications without prior notice
www.bitechnologies.com
85
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
HM77 1000 1 LF TR
Figure 1 Figure 2 Figure 3
Notes: (1) For case size 1 to 6, the reel capacity is for part number ending with suffix ‘LFTR’.
(2) For case size 7 & 10, the reel capacity is for part number ending with suffix ‘ALFTR’