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SWPA6045S123KT
Shenzhen Sunlord Electronics Co., Ltd.
FIXED IND 12MH 65MA 68.4 OHM SMD
3668 Pcs New Original In Stock
12 mH Shielded Drum Core, Wirewound Inductor 65 mA 68.4Ohm Max Nonstandard
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5.0 / 5.0
- (249 Ratings)
SWPA6045S123KT
Product Overview
9881007
DiGi Electronics Part Number
SWPA6045S123KT-DGManufacturer
Shenzhen Sunlord Electronics Co., Ltd.
SWPA6045S123KT
Description
FIXED IND 12MH 65MA 68.4 OHM SMDInventory
3668 Pcs New Original In Stock
12 mH Shielded Drum Core, Wirewound Inductor 65 mA 68.4Ohm Max Nonstandard
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
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SWPA6045S123KT Technical Specifications
Category
Fixed Inductors
Packaging
Tape & Reel (TR)
Series
SWPA
Product Status
Active
Type
Drum Core, Wirewound
Material - Core
Ferrite
Inductance
12 mH
Tolerance
±10%
Current Rating (Amps)
65 mA
Current - Saturation (Isat)
95mA
Shielding
Shielded
DC Resistance (DCR)
68.4Ohm Max
Q @ Freq
-
Frequency - Self Resonant
350kHz
Ratings
-
Operating Temperature
-40°C ~ 125°C
Inductance Frequency - Test
100 kHz
Features
-
Mounting Type
Surface Mount
Package / Case
Nonstandard
Supplier Device Package
-
Size / Dimension
0.236" L x 0.236" W (6.00mm x 6.00mm)
Height - Seated (Max)
0.177" (4.50mm)
Datasheet & Documents
HTML Datasheet
SWPA6045S123KT-DG
Environmental & Export Classification
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN
EAR99
HTSUS
8504.50.8000
Additional Information
Other Names
3442-SWPA6045S123KTTR
Standard Package
1,500
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
고객 지원이 항상 친절하고 상세하게 안내해주셔서 불만 없이 이용하고 있습니다.
Dec 02, 2025
品質一流，價格公道，讓我感受到物超所值的購物體驗！
Dec 02, 2025
Super Preisvorteil kombiniert mit einem schnellen, kundenorientierten Support. Absolut empfehlenswert.
Dec 02, 2025
Fast shipping and reliable after-sales support make them my top choice.
Dec 02, 2025
DiGi Electronics offers exceptional support whenever I reach out with questions.
Dec 02, 2025
My recent order was dispatched so quickly that I was able to meet my project deadline comfortably.
Dec 02, 2025
The delivery arrived exactly when promised, thanks to their reliable and efficient logistics management.
Dec 02, 2025
Their reasonable prices enable me to get the most out of my investments.
Dec 02, 2025
Shipment arrived earlier than expected, which was a pleasant surprise.
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Frequently Asked Questions (FAQ)
What are the key risks when replacing SWPA6045S123KT with a similar 12 mH SMD inductor in a low-power DC-DC converter, and how can I avoid saturation-induced failure?
Replacing SWPA6045S123KT with a generic 12 mH inductor risks core saturation if the substitute’s Isat rating is below 95 mA—its specified saturation current. Many low-cost alternatives (e.g., Bourns SRN6045-120M) have lower Isat (~70 mA), leading to inductance collapse under transient loads. Always verify the replacement’s saturation curve at your operating frequency (100 kHz test point) and ensure DCR doesn’t exceed 68.4 Ω to avoid excessive power loss. Use shielded drum-core types only to prevent EMI coupling in sensitive feedback loops.
Can SWPA6045S123KT be safely used in a high-temperature automotive application operating near 120°C, and what derating should be applied?
SWPA6045S123KT is rated for -40°C to 125°C, making it suitable for under-hood automotive use, but derating is critical. At 120°C, reduce the maximum current by at least 30% (to ~45 mA) to prevent insulation degradation and core property shifts. Ferrite cores exhibit reduced permeability at elevated temperatures, which may lower effective inductance. Monitor self-resonant frequency drift (specified at 350 kHz), as parasitic capacitance increases with temperature, potentially affecting filter performance in SMPS designs.
How does SWPA6045S123KT compare to TDK MLF2012A120K in terms of footprint compatibility and high-frequency noise suppression for EMI filtering?
Unlike the SWPA6045S123KT (6.00mm x 6.00mm, shielded drum core), the TDK MLF2012A120K is a smaller multilayer chip inductor (2.0mm x 1.25mm) with no magnetic shielding, making it prone to radiated noise. While both offer ~12 µH, the SWPA6045S123KT’s wirewound shielded construction provides superior EMI containment and higher Q-factor at 100 kHz, ideal for input/output filtering. However, the TDK part has lower DCR (typically <10 Ω), so choose based on priority: SWPA6045S123KT for noise-sensitive designs, TDK for space-constrained, low-current applications.
What layout considerations are critical when integrating SWPA6045S123KT into a compact PCB design to avoid coupling interference with adjacent analog circuitry?
Despite being shielded, SWPA6045S123KT generates fringe magnetic fields due to its drum-core geometry. Maintain a minimum 3 mm clearance from sensitive analog traces (e.g., ADC inputs, op-amp feedback paths) and orient the inductor perpendicular to high-impedance signal lines to minimize mutual inductance. Avoid placing vias or ground planes directly beneath the component, as eddy currents can increase effective DCR. Use a solid ground plane on the layer below (but not adjacent) to contain return currents and reduce loop area in the power path.
Is SWPA6045S123KT reliable for long-term use in industrial control systems with frequent thermal cycling, and what failure modes should I anticipate?
SWPA6045S123KT’s ferrite core and wirewound construction provide good thermal cycling resilience, but repeated ΔT > 80°C cycles can cause solder joint fatigue due to CTE mismatch between the ceramic-like core and FR4 PCB. To mitigate, use compliant solder paste (e.g., SAC305 with void-reducing stencil design) and avoid mechanical stress near pads. Long-term, insulation breakdown on the winding is unlikely due to MSL 1 rating (unlimited floor life), but verify insulation resistance (>100 MΩ) during qualification. Monitor for gradual inductance drift (>10% shift indicates microcracks in the core—replace if observed).
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.
SWPA6045S123KT CAD Models
Shenzhen Sunlord Electronics Co., Ltd. SWPA6045S123KT PCB symbols & footprints
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