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DO1608C-223MLC
Coilcraft
FIXED IND 22UH 950MA 370MOHM SM
5761 Pcs New Original In Stock
22 µH Unshielded Wirewound Inductor 950 mA 370mOhm Max Nonstandard
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5.0 / 5.0
- (95 Ratings)
DO1608C-223MLC
Product Overview
2172643
DiGi Electronics Part Number
DO1608C-223MLC-DGManufacturer
Coilcraft
DO1608C-223MLC
Description
FIXED IND 22UH 950MA 370MOHM SMInventory
5761 Pcs New Original In Stock
22 µH Unshielded Wirewound Inductor 950 mA 370mOhm Max Nonstandard
Quantity
Minimum 1
Minimum 1
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DO1608C-223MLC Technical Specifications
Category
Fixed Inductors
Packaging
Tape & Reel (TR)
Series
DO1608C
Product Status
Active
Type
Wirewound
Material - Core
Ferrite
Inductance
22 µH
Tolerance
±20%
Current Rating (Amps)
950 mA
Current - Saturation (Isat)
700mA
Shielding
Unshielded
DC Resistance (DCR)
370mOhm Max
Q @ Freq
-
Frequency - Self Resonant
20MHz
Ratings
AEC-Q200
Operating Temperature
-40°C ~ 85°C
Inductance Frequency - Test
100 kHz
Features
-
Mounting Type
Surface Mount
Package / Case
Nonstandard
Supplier Device Package
-
Size / Dimension
0.260" L x 0.175" W (6.60mm x 4.45mm)
Height - Seated (Max)
0.115" (2.92mm)
Datasheet & Documents
HTML Datasheet
DO1608C-223MLC-DG
Environmental & Export Classification
ECCN
EAR99
HTSUS
8504.50.8000
Additional Information
Other Names
2457-DO1608C-223MLC
Standard Package
1
Reviews
5.0/5.0-(Show up to 5 Ratings)
грудня 02, 2025
DiGi Electronics的商品經得起時間考驗，耐用性很好，包裝也非常可靠。
грудня 02, 2025
DiGi Electronics a su répondre rapidement à mes demandes après-vente, ce qui a vraiment facilité mon processus de réparation.
грудня 02, 2025
They stand behind their products with excellent warranty and support options.
грудня 02, 2025
DiGi Electronics' commitment to quality is evident in their consistent performance.
грудня 02, 2025
The company's efficient inventory system minimizes delivery delays.
грудня 02, 2025
The robustness of this item is quite evident, and the packaging was thorough.
грудня 02, 2025
Customer support followed up quickly after my inquiry, demonstrating excellent service.
грудня 02, 2025
Their environmentally friendly packaging and quick dispatch made my shopping experience memorable.
грудня 02, 2025
DiGi Electronics offers exceptional value for money with an incredibly user-friendly website.
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Frequently Asked Questions (FAQ)
Can the Coilcraft DO1608C-223MLC inductor be safely used in a high-vibration automotive application, and what design precautions are necessary to prevent mechanical failure?
Yes, the Coilcraft DO1608C-223MLC is AEC-Q200 qualified, making it suitable for automotive environments including high-vibration scenarios. However, as an unshielded wirewound inductor, it lacks structural encapsulation, increasing susceptibility to microcracks in the winding or solder joints under sustained mechanical stress. To mitigate risk, ensure adequate PCB pad design with proper solder fillets, avoid placement near board edges or flex points, and consider conformal coating to dampen vibration effects. Mechanical anchoring or underfill is not typically required but should be evaluated in extreme environments like engine compartments.
What are the key risks when replacing the DO1608C-223MLC with a shielded inductor like the Bourns SRN6045TA-220M, and how does shielding impact performance in a compact DC-DC converter layout?
Replacing the unshielded Coilcraft DO1608C-223MLC with a shielded alternative such as the Bourns SRN6045TA-220M introduces trade-offs: while shielding reduces electromagnetic interference (EMI) and crosstalk—beneficial in dense layouts—it typically increases core losses and reduces saturation current due to tighter magnetic confinement. The SRN6045TA-220M has a lower Isat (≈600 mA vs. 700 mA) and higher DCR, which may necessitate thermal derating in high-current applications. Additionally, the larger footprint (6.0 x 6.0 mm vs. 6.6 x 4.45 mm) could challenge space-constrained designs. Only substitute if EMI compliance cannot be achieved otherwise, and revalidate efficiency and thermal performance.
How does the unshielded construction of the DO1608C-223MLC affect nearby sensitive analog circuits, and what layout strategies minimize magnetic coupling?
The unshielded design of the Coilcraft DO1608C-223MLC emits a significant external magnetic field, posing a risk of inductive coupling into adjacent traces, sensors, or low-noise analog stages (e.g., ADC reference lines or RF receivers). To minimize interference, maintain a minimum 5 mm clearance from sensitive components, orient the inductor perpendicular to nearby signal paths to reduce flux linkage, and use ground planes cautiously—solid planes beneath can induce eddy currents. If space allows, place a grounded copper keep-out zone or a thin mu-metal shield (if cost permits) between the inductor and sensitive circuitry. Always prototype and test for noise coupling in the final layout.
Is the DO1608C-223MLC suitable for continuous operation at 85°C ambient temperature in a sealed enclosure, and how should derating be applied for long-term reliability?
While the Coilcraft DO1608C-223MLC is rated for operation up to 85°C, continuous use at this upper limit in a sealed enclosure significantly reduces lifespan due to thermal aging of the wire insulation and core material. At 85°C ambient, the internal temperature may exceed 100°C under load, accelerating degradation. Apply a conservative current derating of 20–30% below the 950 mA rating (i.e., operate below 665–760 mA) and ensure adequate airflow or thermal vias under the component. Monitor hotspot temperatures during validation; if exceeding 90°C, consider a higher-current-rated inductor or improved thermal management to ensure 10+ year reliability in mission-critical applications.
Can the DO1608C-223MLC be used in a 48V to 12V buck converter switching at 500 kHz, and what stability concerns arise from its self-resonant frequency and lack of specified Q factor?
The Coilcraft DO1608C-223MLC can be used in a 48V-to-12V buck converter at 500 kHz, but with caution. Its self-resonant frequency (SRF) of 20 MHz is well above the switching frequency, minimizing parasitic resonance risk. However, the absence of a specified Q factor means core and winding losses are not fully characterized, potentially leading to unexpected efficiency drops or thermal hotspots under high ripple current. Ensure the peak inductor current stays below 700 mA (saturation limit) and RMS current remains within thermal limits. Validate loop stability with actual hardware, as core losses can dampen control loop response. For higher efficiency demands, consider gapped ferrite alternatives with published Q curves, such as the Würth WE-LQS series.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
DO1608C-223MLC CAD Models
Coilcraft DO1608C-223MLC PCB symbols & footprints
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