ELL-6UH331M Equivalent & Substitute Parts

Part Overview

The ELL-6UH331M is a 330 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 330 mA continuous current with 1.36Ohm DC resistance. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The part operates at 100 kHz test frequency and is housed in a nonstandard surface mount package measuring 6.40mm × 6.00mm × 5.00mm (max height).

Substiute Parts

ELL-6UH331M

Panasonic Electronic ComponentsIn Stock: 1243ELL-6UH331M Datasheet

Current PartRFQ

CLF6045NIT-331M-D

TDK CorporationIn Stock: 1139CLF6045NIT-331M-D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The CLF6045NIT-331M-D from TDK Corporation qualifies as a functional substitute based on the following alignment of critical electrical and mechanical parameters:

Electrical Compatibility:

• Identical inductance value: 330 µH at 100 kHz test frequency
• Matching inductance tolerance: ±20%
• Current rating of 360 mA exceeds the main part requirement of 330 mA
• DC resistance of 1.1Ohm maximum is lower than the main part's 1.36Ohm, resulting in improved efficiency
• Shielded construction maintained

Mechanical Compatibility:

• Surface mount configuration preserved
• Package dimensions within acceptable tolerance: 6.30mm L × 6.00mm W × 4.80mm H (max) versus 6.40mm × 6.00mm × 5.00mm
• Nonstandard package classification consistent with main part

Compliance & Status:

• Active product status ensures ongoing availability
• ROHS3 compliant, matching main part certification
• MSL rating of 1 (Unlimited) identical to main part
• AEC-Q200 automotive qualification provides additional reliability assurance

Parameter Comparison

Engineering Selection Recommendations

The CLF6045NIT-331M-D is a direct functional equivalent for the obsolete ELL-6UH331M. Selection of the TDK substitute is supported by:

• Electrical Performance: Identical inductance and tolerance specifications ensure circuit behavior equivalence. The lower DC resistance (1.1Ohm max versus 1.36Ohm) provides a performance advantage with reduced power dissipation.

• Current Capacity: The 360 mA rating provides 30 mA margin above the main part's 330 mA requirement, ensuring adequate thermal headroom.

• Compliance Certifications: Both parts maintain ROHS3 compliance and MSL 1 rating. The substitute includes AEC-Q200 automotive qualification, indicating enhanced reliability validation.

• Availability: Active product status of the substitute ensures procurement continuity and eliminates obsolescence risk associated with the main part.

• Physical Fit: Dimensional compatibility within the nonstandard package class permits direct board-level substitution without layout modification.

Frequently Asked Questions (FAQ)

Q: Can the CLF6045NIT-331M-D be used as a direct replacement for the ELL-6UH331M?

A: Yes. Both parts share identical inductance (330 µH), tolerance (±20%), test frequency (100 kHz), shielding configuration, and surface mount package class. Dimensional variance (0.10mm length, 0.20mm height) falls within acceptable mechanical tolerance for nonstandard packages.

Q: What is the impact of the lower DC resistance in the substitute part?

A: The CLF6045NIT-331M-D exhibits 1.1Ohm maximum DC resistance compared to the main part's 1.36Ohm. This 19% reduction decreases resistive losses and heat generation during operation, resulting in improved efficiency without altering circuit inductance characteristics.

Q: Are there temperature operating range differences?

A: The main part does not specify an operating temperature range. The substitute part is rated for -55°C to 150°C, providing defined thermal operating boundaries suitable for industrial and automotive applications.

Q: Does the substitute part meet the same compliance requirements?

A: Both parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. The substitute includes AEC-Q200 automotive qualification, which the main part does not specify.

Q: Is the packaging format identical?

A: Both parts use nonstandard surface mount packages with compatible dimensions. The substitute measures 6.30mm × 6.00mm × 4.80mm (max height) versus the main part's 6.40mm × 6.00mm × 5.00mm (max height). This 0.20mm height reduction may provide minor PCB layout benefits in space-constrained designs.