HM55
HM55 is Shielded Drum Compact Package Low Cost Inductors manufactured by TT Electronics.
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Electrical / Environmental
Sr o H R liant fo p ls ode ‘LF’ M
Shielded Drum pact Package Low Cost Inductors
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- - Operating Temperature Range Ambient Temperature, Maximum Temperature Rise, Maximum Insulation System -40°C to +155°C 100°C 50°C Class F, 155°C
280 ,847, US 6
Specifications
100 k Hz @ 0 Adc µH ±10% 0.40 0.40 0.43 0.95 1.38 0.79 0.28 0.50 1.40 3.00 5.60 1.0 Inductance 100 k Hz, 0.1 V @ Irated µH Min. µH Typ. 0.32 0.32 0.36 0.76 1.10 0.56 0.21 0.36 1.08 2.43 4.86 0.72 0.35 0.35 0.40 0.84 1.25 0.63 0.25 0.40 1.20 2.70 5.40 0.80 Irated (1) (Adc) 20 15 18 22.5 15 27 30 40 35 21 9 40 Isat (2) (Adc) 29 38 27 33 22 39 85 50 50 30 14 56 DCR (3) mΩ ±5% 1.00 1.75 0.77 1.28 2.26 1.20 0.72 0.90 0.98 2.60 7.30 1.25
Part Number HM55-12R40 HM55-14R40 HM55-21R43 HM55-21R95 HM55-211R3 HM55-22R79 HM55-24R28 HM55-26R50 HM55-311R4 HM55-313R0 HM55-315R6 HM55-321R0
Notes:
Dim D. (mm ±0.5) 8.76 8.40 4.10 6.90 6.60 12.5 12.7 12.7 6.60 9.45 7.11 15.24
Dim. E (mm ±0.1) 1.30 1.00 1.30 1.30 1.05 1.45 1.30 1.50 1.65 1.30 0.91 1.50
Fig. 2 2 1 1 1 2 2 2 1 1 1 2
(1) Rate current, Irated, is the approximate DC current at which inductance will be decreased by 20% from its initial (zero DC) value or the current at which ∆T = 50°C, whichever is lower. (2) Isat is the saturation current at which inductance rolls off approximately 30% from its initial value. (3) DC resistance is measured at 25°C.
Outline Dimensions (Inch/mm)
Figure 1 Figure 2 Case Size 12 14
BI XXRXX YYWW
Fig. 2 2 1 2 2 2 1 2
BI XXRXX YYWW
21 22 24 26 31 32
Refer to Note (B)
Notes: (A) Refer to Specifications table for ‘D’ & ‘E’ dimensions of each model. (B) For case size 12 & 14, only BI logo & datecode will be printed.
A .295 7.50 .295 7.50 .413 10.5 .413 10.5 .413 10.5 .413 10.5 .532 13.5 .532 13.5
B .295 7.50 .295 7.50 .433 11.0 .413 10.5 .413 10.5 .413 10.5 .543 13.8 .532 13.5
C .433 11.0 .295 7.50 .413 10.5 .413 10.5 .295 7.50 .355 9.00 .532 13.5 .492 12.5
Packaging
Standard: Vacuum Tray Case...