ELJ-QF2N0DF Equivalent & Substitute Parts

Part Overview

The ELJ-QF2N0DF is a 2 nH unshielded multilayer ceramic inductor manufactured by Panasonic Electronic Components in the 0402 (1005 Metric) surface mount package. This component is rated for 400 mA maximum current with 90 mOhm maximum DC resistance and operates across -40°C to 85°C. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing design support and procurement.

Substiute Parts

ELJ-QF2N0DF

Panasonic Electronic ComponentsIn Stock: 968ELJ-QF2N0DF Datasheet

Current PartRFQ

MLG1005S2N0STD25

TDK CorporationIn Stock: 3826MLG1005S2N0STD25 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ELJ-QF2N0DF is determined by the following critical parameters:

• Inductance value and tolerance (2 nH ±0.3 nH)
• Package / Case format (0402 / 1005 Metric)
• Mounting type (Surface Mount)
• Core material (Ceramic)
• Shielding configuration (Unshielded)

The MLG1005S2N0STD25 from TDK Corporation qualifies as a direct substitute based on matching inductance, tolerance, package, mounting type, core material, and shielding. While the substitute exhibits different electrical performance characteristics (higher current rating, different DC resistance, and extended temperature range), these parameters remain within acceptable substitution criteria for the specified inductance category.

Parameter Comparison

Engineering Selection Recommendations

The MLG1005S2N0STD25 is suitable for applications requiring replacement of the obsolete ELJ-QF2N0DF. The substitute part maintains identical inductance and tolerance specifications while offering active product status and extended availability. The TDK component includes AEC-Q200 automotive qualification and ROHS3 compliance, providing additional quality assurance for regulated applications. The higher current rating (900 mA versus 400 mA) and extended operating temperature range (-55°C to 125°C versus -40°C to 85°C) provide design margin for demanding environments. DC resistance is higher at 150 mOhm maximum compared to 90 mOhm maximum, which may impact power dissipation in current-limited applications.

Frequently Asked Questions (FAQ)

Q: Can the MLG1005S2N0STD25 be used as a direct replacement for the ELJ-QF2N0DF?

A: Yes. Both components share identical inductance (2 nH), tolerance (±0.3 nH), package format (0402 / 1005 Metric), core material (ceramic), shielding (unshielded), and mounting type (surface mount). Physical dimensions and footprint are identical.

Q: What are the differences between these two inductors?

A: The MLG1005S2N0STD25 provides higher current rating (900 mA versus 400 mA), extended operating temperature range (-55°C to 125°C versus -40°C to 85°C), and active product status. DC resistance is higher at 150 mOhm maximum. Q factor at 100 MHz is lower (7 versus 10), and self-resonant frequency is higher (7.5 GHz versus 6 GHz).

Q: Are there packaging differences?

A: The ELJ-QF2N0DF is supplied in standard packaging, while the MLG1005S2N0STD25 is supplied in Tape & Reel (TR) format. Both use identical 0402 (1005 Metric) surface mount packages with matching physical dimensions and mounting footprints.

Q: Does the higher DC resistance of the substitute affect circuit performance?

A: DC resistance differences (90 mOhm versus 150 mOhm) may impact power dissipation and insertion loss in RF and high-frequency applications. Circuit simulation or testing is necessary to determine acceptability for specific application requirements.

Q: What compliance certifications does the substitute part carry?

A: The MLG1005S2N0STD25 includes AEC-Q200 automotive qualification and ROHS3 compliance. Both parts are REACH Unaffected and classified as EAR99 for export control purposes.