The CDH73 Series is a low-profile, SMD Shielded Power Inductor in a 7.3 mm × 7.3 mm footprint. With its slim 3.5mm maximum height, this series is engineered for high-density power circuits where EMI suppression and a low profile are critical.
This magnetic core inductor features a closed magnetic circuit design to minimize EMI and offers a higher current rating than conventional inductors of equivalent size. The CDH73 provides an exceptionally wide inductance range for its size, from the popular power inductor 10uh value (CDH73-100M) up to 1000µH (1mH), making it a highly versatile choke inductor for a variety of applications.
Key Features
Magnetically Shielded: Closed magnetic circuit design for low EMI.
Low Profile: 7.3 mm × 7.3 mm footprint with a 3.5mm max height.
Very Wide Inductance Range: 10µH to 1000µH.
Higher Current Rating: Outperforms conventional inductors of the same size.
RoHS Compliant.
Applications
The CDH73's versatile range and low-profile, shielded design make it an ideal SMD Shielded Power Inductor for DC-DC converters and power supplies in:
Notebooks, desktop computers, and servers
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>>
Automotive systems
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Flat-screen TVs, blue-ray disc recorders, set-top boxes
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Telecom base stations
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Portable gaming devices and personal multimedia devices
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Electrical Characteristics
|
Part No. |
Inductance (L₀) (µH) (100kHz, 1V) |
DCR (mΩ) MAX. |
Rating Current (Idc) (A) TYP. |
Saturation Current (Isat) (A) TYP. |
|
CDH73-100M |
10 ± 20% |
72 |
1.42 |
1.68 |
|
CDH73-120M |
12 ± 20% |
98 |
1.29 |
1.52 |
|
CDH73-150M |
15 ± 20% |
130 |
1.13 |
1.33 |
|
CDH73-180M |
18 ± 20% |
140 |
1.02 |
1.2 |
|
CDH73-220M |
22 ± 20% |
190 |
0.91 |
1.07 |
|
CDH73-270M |
27 ± 20% |
210 |
0.81 |
0.96 |
|
CDH73-330M |
33 ± 20% |
240 |
0.77 |
0.91 |
|
CDH73-390M |
39 ± 20% |
320 |
0.65 |
0.77 |
|
CDH73-470M |
47 ± 20% |
360 |
0.64 |
0.76 |
|
CDH73-560M |
56 ± 20% |
470 |
0.58 |
0.68 |
|
CDH73-680M |
68 ± 20% |
520 |
0.52 |
0.61 |
|
CDH73-820M |
82 ± 20% |
690 |
0.48 |
0.57 |
|
CDH73-101M |
100 ± 20% |
790 |
0.42 |
0.5 |
|
CDH73-121M |
120 ± 20% |
890 |
0.42 |
0.49 |
|
CDH73-151M |
150 ± 20% |
1270 |
0.36 |
0.43 |
|
CDH73-181M |
180 ± 20% |
1450 |
0.33 |
0.39 |
|
CDH73-221M |
220 ± 20% |
1650 |
0.30 |
0.35 |
|
CDH73-271M |
270 ± 20% |
2310 |
0.27 |
0.32 |
|
CDH73-331M |
330 ± 20% |
2620 |
0.24 |
0.28 |
|
CDH73-391M |
390 ± 20% |
2940 |
0.22 |
0.26 |
|
CDH73-471M |
470 ± 20% |
4180 |
0.20 |
0.24 |
|
CDH73-561M |
560 ± 20% |
4670 |
0.19 |
0.22 |
|
CDH73-681M |
680 ± 20% |
5730 |
0.16 |
0.19 |
|
CDH73-821M |
820 ± 20% |
6540 |
0.15 |
0.18 |
|
CDH73-102M |
1000 ± 20% |
9440 |
0.14 |
0.16 |
Notes:
Test Conditions: All test data is referenced to 25°C ambient.
Operating Temperature Range: -40°C to +125°C (ambient plus self-temperature rise).
Idc (Rating Current): DC current (A) that will cause an approximate ΔT of 40°C.
Isat (Saturation Current): DC current (A) that will cause L₀ to drop approximately 35%.
Temperature Limit: The part temperature (ambient + temp rise) should not exceed 125°C under worst-case operating conditions.
Shape and Dimensions
Packaging
Packaging: Embossed Carrier Tape
Reel Diameter: 330 mm
Tape Width: 16 mm
Quantity/Reel: 1000 pcs
Solder Reflow Profile
Preheat condition: 150~180°C / 2 min.
Peak Temperature: 260°C ± 3°C (10 sec max).
Time above 230°C: 30 sec min.
(Note: This profile is for qualification only. Actual profiles must be based on the customer's specific board design and process.)
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