ELL-4FG330MA Equivalent & Substitute Parts

Part Overview

The ELL-4FG330MA is a 33 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 400 mA with a DC resistance of 1.06 Ohm. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part is surface mount, nonstandard package, and ROHS3 compliant with MSL 1 rating.

Substiute Parts

ELL-4FG330MA

Panasonic Electronic ComponentsIn Stock: 1110ELL-4FG330MA Datasheet

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ASPI-4030S-330M-T

Abracon LLCIn Stock: 204720ASPI-4030S-330M-T Datasheet

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CDH38D11SLDNP-330MC

Sumida America Components Inc.In Stock: 736CDH38D11SLDNP-330MC Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ELL-4FG330MA are selected based on the following critical parameters:

• Inductance Value: 33 µH (exact match required)
• Tolerance: ±20% (matching tolerance specification)
• Mounting Type: Surface Mount (PCB compatibility)
• Package Dimensions: 3.80mm x 3.80mm footprint with 1.20mm maximum height (physical fit on board)
• Shielding Requirement: Shielded construction (electromagnetic interference control)
• Current Rating: Minimum 400 mA (functional requirement)
• DC Resistance: Comparable to 1.06 Ohm (performance characteristic)
• Compliance: ROHS3 compliant, MSL 1 rating

The substitute parts listed meet these core electrical and mechanical criteria, ensuring functional equivalence and PCB compatibility.

Parameter Comparison

Engineering Selection Recommendations

ASPI-4030S-330M-T (Abracon LLC): This substitute offers active product status with higher current rating (840 mA) and saturation current (1.1 A), providing design margin above the original 400 mA specification. DC resistance is significantly lower at 330 mOhm, reducing power dissipation. The part maintains shielded construction and ROHS3 compliance. Physical dimensions are 4.00mm x 4.00mm with 3.00mm height, requiring PCB layout verification for fit. Operating temperature range extends to 125°C. This option is suitable for applications where improved thermal performance and higher current headroom are acceptable.

CDH38D11SLDNP-330MC (Sumida America Components Inc.): This substitute maintains active product status with identical footprint (3.80mm x 3.80mm) and height (1.20mm) to the original part, ensuring direct PCB compatibility. Current rating of 450 mA exceeds the 400 mA requirement. DC resistance of 1 Ohm Max is comparable to the original 1.06 Ohm specification. However, this part is unshielded, which may impact electromagnetic interference performance in shielded-inductor applications. Operating temperature range is -40°C to 105°C. This option is suitable for applications where shielding is not critical and exact form factor is required.

Both substitutes are ROHS3 compliant with MSL 1 rating, matching the original part's environmental specifications.

Frequently Asked Questions (FAQ)

Q: Can ASPI-4030S-330M-T be used as a direct replacement for ELL-4FG330MA?

A: ASPI-4030S-330M-T meets the core electrical specifications (33 µH, ±20% tolerance, 400 mA minimum current rating, shielded). However, the physical dimensions differ: 4.00mm x 4.00mm footprint with 3.00mm height versus the original 3.80mm x 3.80mm with 1.20mm height. PCB layout must be verified to accommodate the larger footprint and height before implementation.

Q: Can CDH38D11SLDNP-330MC be used as a direct replacement for ELL-4FG330MA?

A: CDH38D11SLDNP-330MC matches the physical footprint (3.80mm x 3.80mm, 1.20mm height) and electrical inductance (33 µH, ±20% tolerance). Current rating of 450 mA exceeds the 400 mA requirement. The critical difference is shielding: this part is unshielded while the original is shielded. Use this substitute only if electromagnetic shielding is not required in the application.

Q: What are the key differences in DC resistance between the substitutes?

A: The original ELL-4FG330MA has 1.06 Ohm DCR. ASPI-4030S-330M-T offers 330 mOhm (significantly lower), reducing power dissipation and heat generation. CDH38D11SLDNP-330MC specifies 1 Ohm Max, closely matching the original. Lower DCR improves efficiency but may require thermal management verification in high-current applications.

Q: Are both substitutes RoHS and MSL compliant?

A: Yes. Both ASPI-4030S-330M-T and CDH38D11SLDNP-330MC are ROHS3 compliant with MSL 1 (Unlimited) rating, matching the original part's environmental and regulatory specifications.

Q: What is the saturation current difference, and does it matter?

A: The original part saturates at 360 mA. ASPI-4030S-330M-T saturates at 1.1 A, providing significant margin. CDH38D11SLDNP-330MC saturates at 360 mA, matching the original. Higher saturation current (ASPI-4030S-330M-T) allows operation closer to rated current without inductance degradation.

Q: Which substitute should I choose for a space-constrained PCB?

A: CDH38D11SLDNP-330MC maintains the original 3.80mm x 3.80mm footprint and 1.20mm height, ensuring no PCB layout modifications are required. ASPI-4030S-330M-T requires additional space due to its 4.00mm x 4.00mm footprint and 3.00mm height.