ELL-4GG100M Equivalent & Substitute Parts

Part Overview

The ELL-4GG100M is a 10 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 770 mA continuous current with 250mOhm DC resistance. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing production and maintenance applications. Substitute parts must maintain the same inductance value, shielding characteristics, and current handling capability within acceptable tolerance ranges.

Substiute Parts

ELL-4GG100M

Panasonic Electronic ComponentsIn Stock: 830ELL-4GG100M Datasheet

Current PartRFQ

NRS4018T100MDGJ

Taiyo YudenIn Stock: 14384NRS4018T100MDGJ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELL-4GG100M is determined by the following critical parameters:

• Inductance Value: Must be 10 µH at 100 kHz test frequency with ±20% tolerance
• Current Rating: Must support minimum 770 mA continuous current
• Saturation Current: Must meet or exceed 900 mA
• DC Resistance: Must not exceed 250 mOhm to maintain equivalent power dissipation characteristics
• Shielding: Must be shielded to prevent electromagnetic interference
• Mounting Type: Must be surface mount compatible
• Compliance: Must maintain ROHS3 compliance and MSL 1 rating

The NRS4018T100MDGJ from Taiyo Yuden meets these substitution criteria with enhanced current handling (1.2 A rating, 1.3 A saturation) and improved DC resistance (180 mOhm maximum), while maintaining identical inductance specification and shielding requirements.

Parameter Comparison

Engineering Selection Recommendations

The NRS4018T100MDGJ qualifies as a direct substitute for the obsolete ELL-4GG100M based on matching inductance specification, tolerance, shielding requirement, and compliance certifications. The substitute part provides superior electrical performance with higher current ratings (1.2 A vs. 770 mA) and lower DC resistance (180 mOhm maximum vs. 250 mOhm), resulting in reduced power dissipation and improved thermal characteristics.

Physical dimensions differ slightly: the Taiyo Yuden part measures 4.00mm x 4.00mm with 1.80mm maximum height compared to the Panasonic part's 3.80mm x 3.80mm x 1.40mm. PCB layout verification is required to confirm footprint compatibility within the available mounting space.

Both parts maintain ROHS3 compliance and MSL 1 rating, ensuring equivalent environmental and moisture handling requirements. The Taiyo Yuden part is classified as "Not For New Designs," indicating mature product status suitable for replacement applications.

Frequently Asked Questions (FAQ)

Q: Can the NRS4018T100MDGJ be used as a direct replacement for the ELL-4GG100M?

A: Yes, the NRS4018T100MDGJ meets all critical electrical parameters: identical 10 µH inductance at 100 kHz, ±20% tolerance, shielded construction, and exceeds the minimum 770 mA current requirement. Physical dimensions require PCB layout verification due to the 0.2mm increase in length and width and 0.4mm increase in height.

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

A: The NRS4018T100MDGJ's 180 mOhm maximum DCR compared to the ELL-4GG100M's 250 mOhm results in lower resistive losses and reduced heat generation at equivalent current levels, providing improved efficiency and thermal performance.

Q: Are there compliance differences between the two parts?

A: Both parts are ROHS3 compliant with MSL 1 rating. The substitute part provides documented operating temperature range (-25°C ~ 120°C), whereas the original part does not specify this parameter.

Q: Does the drum core construction of the substitute affect compatibility?

A: The NRS4018T100MDGJ uses drum core wirewound construction versus the ELL-4GG100M's wirewound design. Both are shielded and maintain identical inductance and tolerance specifications at the 100 kHz test frequency. Electromagnetic performance is equivalent for the specified application parameters.

Q: What PCB considerations apply when substituting this part?

A: The substitute part's larger footprint (4.00mm x 4.00mm vs. 3.80mm x 3.80mm) and increased height (1.80mm vs. 1.40mm) require verification that the PCB layout accommodates these dimensions. Solder pad spacing and clearance to adjacent components must be confirmed before implementation.