DW3316-685MLD COILCRAFT Inductor (Other) In Stock
COILCRAFT DW3316-685MLD is a coupled power inductor with 6800 µH nominal inductance, 42 Ω DC resistance, and 20% tolerance in a rectangular SMT ferrite-core package, designed for filter choke and general-purpose power conversion applications requiring high inductance in a compact surface-mount footprint.
- Manufacturer
- COILCRAFT
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- DW3316-685MLD Datasheet PDF
- Category
- Inductor
- Price
- From $1.7200(MOQ 750)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of DW3316-685MLD?
- 6800 µH nominal inductance with 20% tolerance for filter choke and energy-storage applications
- Coupled inductor design enabling dual-winding power conversion topologies in a single SMT package
- 42 Ω DC winding resistance in a rectangular ferrite-core construction for high-inductance SMT filtering
- RoHS-compliant, lead-free (Pbfree Code: Yes) for green manufacturing compatibility
- SMT (surface mount) rectangular package (size code 5140) for automated PCB assembly
- Ferrite core material provides stable inductance across a broad frequency range for filter choke use
What is DW3316-685MLD used for?
The DW3316-685MLD is used as a filter choke and coupled inductor in DC-DC converter output stages, EMI filter networks, and power conditioning circuits where 6800 µH of high inductance is required in a surface-mount form factor. Its coupled winding design is suitable for flyback, forward, and SEPIC converter topologies in industrial power supplies, telecommunications equipment, and low-power instrumentation where compact SMT magnetics with ferrite core construction are preferred.
What are the specifications of DW3316-685MLD?
| Pbfree Code | Yes |
| YTEOL | 5.5 |
| Case/Size Code | 5140 |
| Construction | Rectangular |
| Core Material | FERRITE |
| DC Resistance | 42Ω |
| Inductance-Nom (L) | 6800 µH |
| Inductor Application | FILTER CHOKE |
| Inductor Type | GENERAL PURPOSE INDUCTOR |
| JESD-609 Code | e4 |
| Number of Functions | 2 |
| Package Height | 5.21mm |
| Package Length | 13.08mm |
| Package Style | SMT |
| Package Width | 10.16mm |
| Packing Method | TR, Embossed Plastic, 13 Inch |
| Rated Current-Max | 0.15A |
| Self Resonance Frequency | 0.69MHz |
| Shape/Size Description | RECTANGULAR PACKAGE |
| Shielded | NO |
| Surface Mount | YES |
| Terminal Finish | Gold (Au) - with Nickel (Ni) barrier |
| Terminal Placement | DUAL IN-LINE |
| Terminal Shape | WRAPAROUND |
| Test Frequency | 0.01MHz |
| Tolerance | 20% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8504.50.80.00 |
Where can I find the DW3316-685MLD datasheet?
DW3316-685MLD Datasheet DownloadOfficial datasheet from COILCRAFT
What are equivalent replacements for DW3316-685MLD?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the nominal inductance and DC resistance of the DW3316-685MLD, and how do these values affect its use as a filter choke?
The DW3316-685MLD has a nominal inductance of 6800 µH with a 20% tolerance and a DC resistance of 42 Ω. For filter choke applications, the high 6800 µH inductance provides strong attenuation of low-frequency ripple currents, while the 42 Ω DC resistance sets the maximum allowable continuous current to keep power dissipation within acceptable limits.
Which power conversion topologies benefit most from using the DW3316-685MLD coupled inductor?
The DW3316-685MLD is well-suited for coupled-inductor applications in flyback, SEPIC, and forward converter topologies, where a single SMT component with 6800 µH per winding and a ferrite core replaces two discrete inductors. This reduces PCB area and simplifies magnetics design in low-to-medium power DC-DC converters for industrial and telecom equipment.
How does the 20% inductance tolerance of the DW3316-685MLD affect design margin in filter applications?
A 20% tolerance on the 6800 µH nominal inductance means the actual inductance may range from approximately 5440 µH to 8160 µH per COILCRAFT's specification. Designers should simulate the EMI filter or choke stage at both tolerance extremes to verify that cutoff frequency targets are met across the full production spread, particularly in applications where filter corner frequency must remain below a specific limit such as 1 kHz or lower.
Is the DW3316-685MLD compatible with RoHS-compliant assembly processes, and what is the JESD-609 code for this part?
Yes, the DW3316-685MLD is lead-free and RoHS-compliant with a JESD-609 code of e4, confirming that the component is manufactured without restricted hazardous substances. It is compatible with standard lead-free SMT reflow soldering processes used in industrial and commercial electronic assemblies.
For procurement planning, what lifecycle and supply chain factors should buyers consider when sourcing the DW3316-685MLD in volume?
Buyers should verify the COILCRAFT DW3316-685MLD active product status and confirm availability through authorized COILCRAFT distributors, as coupled ferrite-core inductors with 6800 µH inductance and 42 Ω DCR can have specialized production lead times of 8 to 14 weeks. Stocking safety inventory and identifying second-source magnetics at equivalent 6800 µH inductance and SMT package dimensions reduces production risk for high-mix industrial power supply assemblies.
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Why Buy from FindMyChip
About COILCRAFT
COILCRAFT is a leading electronic component manufacturer. FindMyChip sources COILCRAFT ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 750+ | $1.8800 | $1410.00 |
| 2250+ | $1.8100 | $4072.50 |
| 4500+ | $1.7200 | $7740.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
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