Description
• Halogen Free
• 125°C maximum total temperature operation
• 3.2 x 3.0 x 1.2mm maximum shielded drum core
• Ferrite core material
• High power density, ultra-compact footprint
• Inductance range from 1.02μH to 97.7μH
• Current range from 0.217 to 1.95 Amps
• Magnetically shielded, low EMI
• RoHS compliant
Low Profile, High Power, Shielded Drum Inductors
SDH2812 Series
1209 BU-SB091134 Page 1 of 4 Data Sheet: 4354
SMD Device
1 Open Circuit Inductance (OCL) Test Parameters: 100kHz, 0.10V
rms
, 0.0Adc
2I
rms
: DC current for an approximate temperature rise of 40°C without core loss. Derating is
necessary for AC currents. PCB pad layout, trace thickness and width, air-flow and proximity of
other heat generating components will affect the temperature rise. It is recommended the part
temperature not exceed 125°C under worst case operating conditions verified in the end
application.
3I
sat
: Peak current for approximately 30% rolloff at +25°C.
4 K-factor: Used to determine B
p-p
for core loss (see graph). B
p-p
= K
*
L
*
ΔI. B
p-p
(Gauss),
K: (K-factor from table), L: (inductance in μH), ΔI (peak-to-peak ripple current in amps).
5 Part Number Definition: SDH2812-xxx-R
• SDH2812 = Product code and size
• xxx= Inductance value in μH, R = decimal point,
If no R is present then 3
rd
digit equals number of zeros.
• “-R” suffix = RoHS compliant
Product Specifications
Part OCL
1
Part Marking I
rms
2
I
sat
3
@ 25°C DCR (Ω) @ 20°C DCR (Ω) @ 20°C
Number
5
(μH) Designator (Amps) (Amps) (Typical) (Maximum) K-factor
4
SDH2812-1R0-R 1.02±30% O 1.45 1.95 0.062 0.083 1212
SDH2812-1R5-R 1.50±30% A 1.33 1.71 0.082 0.102 1070
SDH2812-2R2-R 2.20±20% B 1.26 1.53 0.095 0.114 866
SDH2812-3R3-R 3.20±20% C 1.08 1.16 0.138 0.154 673
SDH2812-4R7-R 4.20±20% D 0.900 1.000 0.200 0.224 587
SDH2812-6R8-R 6.60±20% E 0.730 0.830 0.270 0.336 466
SDH2812-8R2-R 8.17±20% F 0.660 0.780 0.380 0.417 404
SDH2812-100-R 9.67±20% G 0.620 0.710 0.389 0.467 387
SDH2812-150-R 14.7±20% H 0.500 0.570 0.620 0.721 308
SDH2812-220-R 21.6±20% I 0.440 0.460 0.870 0.922 264
SDH2812-330-R 33.2±20% J 0.350 0.380 1.37 1.43 209
SDH2812-470-R 46.7±20% K 0.300 0.320 1.72 1.99 173
SDH2812-680-R 68.0±20% L 0.270 0.270 2.46 2.70 148
SDH2812-820-R 82.2±20% M 0.230 0.240 3.15 3.47 135
SDH2812-101-R 97.7±20% N 0.217 0.218 3.61 3.97 122
