ELL-4GG1R2N Equivalent & Substitute Parts

Part Overview

The ELL-4GG1R2N is a 1.2 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 1.9 A continuous current with 50mOhm DC resistance. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part operates at 100 kHz inductance test frequency and is housed in a nonstandard 3.80mm x 3.80mm surface mount package.

Substiute Parts

ELL-4GG1R2N

Panasonic Electronic ComponentsIn Stock: 1024ELL-4GG1R2N Datasheet

Current PartRFQ

VLCF4028T-1R2N2R7-2

TDK CorporationIn Stock: 1806VLCF4028T-1R2N2R7-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELL-4GG1R2N is determined by the following critical parameters:

• Inductance Value: Must be 1.2 µH with ±30% tolerance
• Current Rating: Substitute must support minimum 1.9 A continuous current
• DC Resistance: Lower or equal DCR is acceptable; higher values may impact thermal performance
• Shielding: Must maintain shielded construction to preserve EMI characteristics
• Mounting Type: Surface mount configuration required
• Package Compatibility: Physical dimensions must accommodate board layout constraints
• Saturation Current: Must equal or exceed 2.4 A minimum saturation specification

The VLCF4028T-1R2N2R7-2 from TDK Corporation meets these substitution criteria with improved electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The VLCF4028T-1R2N2R7-2 is the qualified substitute for the obsolete ELL-4GG1R2N based on the following engineering criteria:

Electrical Compatibility: Both parts maintain identical inductance values (1.2 µH) and tolerance specifications (±30%). The TDK substitute provides superior current handling with 2.71 A rating versus 1.9 A, and lower DC resistance (32 mOhm max versus 50 mOhm), resulting in reduced power dissipation and improved thermal performance.

Compliance & Certification: Both components are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent environmental and regulatory compliance.

Product Status: The substitute part maintains active production status with confirmed inventory availability (1750 pcs), providing long-term supply security compared to the obsolete original part.

Physical Considerations: The substitute package dimensions increase from 3.80mm to 4.00mm (length and width) and from 1.40mm to 2.80mm (height). Board layout verification is required to confirm accommodation of the larger footprint.

Frequently Asked Questions (FAQ)

Q: Can the VLCF4028T-1R2N2R7-2 directly replace the ELL-4GG1R2N without circuit modifications?

A: Electrical substitution is valid based on matching inductance (1.2 µH) and tolerance (±30%). The improved current rating and lower DC resistance of the TDK part provide performance benefits. Physical board layout must be verified due to increased package dimensions (4.00mm x 4.00mm footprint and 2.80mm height versus 3.80mm x 3.80mm and 1.40mm).

Q: What are the key differences between these two inductors?

A: The primary differences are core construction (wirewound versus drum core wirewound), DC resistance (50 mOhm versus 32 mOhm max), current ratings (1.9 A versus 2.71 A), and physical dimensions. The TDK substitute offers lower losses and higher current capacity in a larger package.

Q: Are both parts suitable for the same operating temperature range?

A: The ELL-4GG1R2N does not specify an operating temperature range. The VLCF4028T-1R2N2R7-2 is rated for -40°C to 105°C operation. Application-specific temperature requirements should be evaluated against the TDK specification.

Q: What is the significance of the ±30% inductance tolerance?

A: The ±30% tolerance indicates the acceptable variation range from the nominal 1.2 µH value. Both parts share this tolerance specification, ensuring equivalent inductance accuracy for circuit design purposes.

Q: Does packaging format affect substitution eligibility?

A: The ELL-4GG1R2N is supplied in standard packaging, while the VLCF4028T-1R2N2R7-2 is available in Tape & Reel (TR) format. This affects handling and assembly processes but does not impact electrical or mechanical compatibility.