2
Technical Data 4149
Effective November 2015
SD53
Low profile shielded power inductors
www.eaton.com/elx
Product Specifications
Part Number
5
OCL1 (μH) ±20% Part marking
I
rms
2
(A)
I
sat
3
(A)
DCR (Ω) typical
@ 20 °C
DCR (Ω) maximum @
20 °C K-factor
4
SD53-1R1-R 1.10 A 3.25 4.80 0.017 0.020 48
SD53-2R0-R 2.00 B 2.64 3.30 0.023 0.027 35
SD53-3R3-R 3.30 C 2.26 2.60 0.029 0.034 28
SD53-4R7-R 4.70 D 2.01 2.10 0.039 0.045 21
SD53-6R8-R 6.80 E 1.65 1.85 0.059 0.068 20
SD53-100-R 10.0 F 1.41 1.40 0.077 0.090 15
SD53-150-R 15.0 G 1.10 1.10 0.122 0.142 12
SD53-220-R 22.0 H 0.81 0.94 0.179 0.208 10
SD53-330-R 33.0 I 0.75 0.76 0.221 0.257 8
SD53-470-R 47.0 J 0.64 0.64 0.303 0.352 7
SD53-680-R 68.0 K 0.52 0.58 0.452 0.525 6
SD53-101-R 100 L 0.44 0.45 0.689 0.801 5
1. 1. Open Circuit Inductance (OCL) Test Parameters: 100 kHz, 0.1 Vrms, 0.0 Adc.
2. Irms: DC current for an approximate ∆T of 40 °C without core loss. Derating is necessary for AC currents. PCB layout,
trace thickness and width, air-flow, and proximity of other heat generating components will affect the temperature
rise. It is recommended that the temperature of the part not exceed 125 °C under worst case operating conditions
verified in the end application
3. lsat: Peak current for approximately 30% rolloff @ 25 °C.
4. K-factor: Used to determine B p-p for core loss (see graph). B p-p = K*L*∆I, B p-p(mT), K: (K factor from table),
L: (Inductance in uH), ∆I (Peak to peak ripple current in Amps).
5. Part Number Definition: SD53-xxx-R
SD53 = Product code and size; -xxx = Inductance value in uH; R = decimal point;
If no R is present then third character equals the number of zeros.
-R suffix = RoHS compliant.
Dimensions (mm)
Packaging information (mm)
Parts packaged on 13” diameter reel, 2,600 parts per reel.
Part Marking: Line 1: (1st digit= inductance value per Part Marking Designator); (2nd digit= Bi-weekly production date code); (3rd digit= Last
digit of the year produced), (4th digit= Internal manufacturing code). Line 2: 53=product size code)
Do not route traces or vias underneath the inductor
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