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SER2915H-223KL
Coilcraft
FIXED IND 22UH 30A 2.05MOHM SM
5532 Pcs New Original In Stock
22 µH Shielded Wirewound Inductor 30 A 2.05mOhm Max Nonstandard
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5.0 / 5.0
- (132 Ratings)
SER2915H-223KL
Product Overview
2170978
DiGi Electronics Part Number
SER2915H-223KL-DGManufacturer
Coilcraft
SER2915H-223KL
Description
FIXED IND 22UH 30A 2.05MOHM SMInventory
5532 Pcs New Original In Stock
22 µH Shielded Wirewound Inductor 30 A 2.05mOhm Max Nonstandard
Quantity
Minimum 1
Minimum 1
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SER2915H-223KL Technical Specifications
Category
Fixed Inductors
Packaging
Tape & Reel (TR)
Series
SER2900
Product Status
Active
Type
Wirewound
Material - Core
Ferrite
Inductance
22 µH
Tolerance
±10%
Current Rating (Amps)
30 A
Current - Saturation (Isat)
7A
Shielding
Shielded
DC Resistance (DCR)
2.05mOhm Max
Q @ Freq
-
Frequency - Self Resonant
10MHz
Ratings
AEC-Q200
Operating Temperature
-40°C ~ 85°C
Inductance Frequency - Test
500 kHz
Features
-
Mounting Type
Surface Mount
Package / Case
Nonstandard
Supplier Device Package
-
Size / Dimension
1.098" L x 0.780" W (27.90mm x 19.80mm)
Height - Seated (Max)
0.605" (15.36mm)
Datasheet & Documents
HTML Datasheet
SER2915H-223KL-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
ECCN
EAR99
HTSUS
8504.50.8000
Additional Information
Other Names
2457-SER2915H-223KL
Standard Package
1
Reviews
5.0/5.0-(Show up to 5 Ratings)
грудня 02, 2025
Höchste Produktqualität kombiniert mit einem hervorragenden Kundenservice – so sollte Einkauf sein!
грудня 02, 2025
Die Produkte überzeugen durch ihre Beständigkeit, und der Service ist zuverlässig.
грудня 02, 2025
Their customer service team is very responsive and genuinely cares about resolving issues.
грудня 02, 2025
DiGi Electronics’ support staff was incredibly helpful in explaining post-sales procedures and warranties.
грудня 02, 2025
Reliability and affordability are the cornerstones of my positive experience with DiGi.
грудня 02, 2025
DiGi Electronics is known for clear pricing policies, which build trust with customers.
грудня 02, 2025
I am impressed by how quickly my package arrived and how well it was packed.
грудня 02, 2025
They offer fantastic deals that don’t compromise on quality, coupled with a personable support team.
грудня 02, 2025
Customer care does not end at sale; their ongoing support is excellent.
грудня 02, 2025
Shopping with DiGi Electronics has been a seamless experience thanks to their excellent support teams.
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Frequently Asked Questions (FAQ)
What are the key risks when replacing the Ser2915H-223KL with a non-shielded inductor like the XAL7050-223MEB in high-current DC-DC converters?
Replacing the SER2915H-223KL with a non-shielded alternative such as the XAL7050-223MEB introduces significant EMI risks due to uncontained magnetic fields, especially in dense PCB layouts or noise-sensitive applications. The SER2915H-223KL’s fully shielded ferrite core minimizes electromagnetic interference, which is critical in automotive or industrial systems compliant with AEC-Q200. Additionally, while the XAL7050-223MEB offers lower DCR, it saturates closer to its rated current (Isat = ~34A vs. 7A for SER2915H-223KL), creating a design-in risk under transient loads. Always verify saturation margin and coupling to nearby traces when substituting; the SER2915H-223KL's conservative Isat rating ensures predictable performance under surge conditions despite its lower numerical value due to test methodology differences.
How should I address thermal and current handling trade-offs when designing in the SER2915H-223KL for a 24V telecom power stage operating near 85°C ambient?
When using the SER2915H-223KL in high-ambient environments like 85°C telecom systems, derate current carefully—its 30A rating assumes ideal PCB heatsinking. In practice, the combination of DCR (2.05mΩ max) and skin/proximity effects at switching frequencies above 300 kHz increases effective resistance and I²R losses. Use at least 2 oz. copper and a 3x3 thermal via array under the pad to improve thermal conduction. Monitor hotspot temperature rise experimentally; even with low DCR, the large physical size (27.9mm x 19.8mm) can create localized heating if airflow is restricted. Consider parallel inductors only if layout symmetry ensures balanced current sharing—otherwise, the SER2915H-223KL is better replaced with a higher-isat solution.
Can the SER2915H-223KL be used reliably in a 1MHz buck converter, or is its 10MHz self-resonant frequency too close to the operating point?
The SER2915H-223KL can be used in 1MHz buck converters but requires cautious layout and filtering due to proximity to its 10MHz self-resonant frequency (SRF). Operating at 10% of SRF is generally safe, but stray capacitance from poor PCB routing or parallel components can lower the effective SRF, pushing the inductor into capacitive behavior and causing instability or ringing. To ensure reliability, keep high-dI/dt loop areas minimal, use local ceramic decoupling, and avoid placing other magnetic components nearby. If possible, verify impedance phase in-situ with a VNA; phase angles approaching zero before 1MHz indicate resonance risks—consider the SER2915H-223KL only when SRF margin is confirmed under real operating conditions.
What are the mechanical and reliability concerns with the nonstandard package of the SER2915H-223KL during reflow and thermal cycling?
The SER2915H-223KL’s nonstandard footprint (27.90mm x 19.80mm) and height (15.36mm) increase mechanical stress during reflow and thermal cycling. Uneven heating or board flex can crack solder joints or the ferrite core, especially without compliant mounting. Use a nitrogen-assisted reflow profile with controlled ramp rates (≤2°C/sec) to prevent tombstoning or thermal shock. Ensure PCB support near the inductor to minimize flex, and consider adhesive underfill for automotive or high-vibration environments. The large thermal mass can also shadow nearby components—verify thermal profile across the board. Compared to JEDEC-standard SMD inductors, the SER2915H-223KL demands custom stencil apertures and fiducial placement to ensure assembly yield.
How do I resolve the discrepancy between the SER2915H-223KL's 30A rated current and its 7A saturation current in design verification testing?
The SER2915H-223KL’s 30A rating reflects thermal current (I<sub>TRMS</sub>—based on temperature rise), while the 7A saturation current (I<sub>sat</sub>) is the point where inductance drops by 10–30% (Coilcraft typically uses 30%). This means the inductor can handle 30A continuously if thermally managed, but must not see peak currents exceeding 7A without risking core saturation and loss of regulation. In design verification, use a DC bias sweep on an impedance analyzer to measure actual L-drop versus current; apply pulsed DC to simulate inductor ripple + offset. If peak inductor current (I<sub>out</sub> + ΔI/2) approaches 7A, the SER2915H-223KL may not be suitable for high-ripple applications. Favor it in low-ripple, high-efficiency designs where thermal load dominates over saturation risk.
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SER2915H-223KL CAD Models
Coilcraft SER2915H-223KL PCB symbols & footprints
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