GLFR2012T220M-LR Equivalent & Substitute Parts

Part Overview

The GLFR2012T220M-LR is a 22 µH shielded inductor manufactured by TDK Corporation, designed for surface mount applications in the 0805 (2012 Metric) package. This component is rated for 300 mA continuous current with a DC resistance of 700mOhm and operates across the temperature range of -40°C to 105°C. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement.

Substiute Parts

GLFR2012T220M-LR

TDK CorporationIn Stock: 1742GLFR2012T220M-LR Datasheet

Current PartRFQ

MLZ2012M220WT000

TDK CorporationIn Stock: 5773MLZ2012M220WT000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GLFR2012T220M-LR is determined by the following critical parameters:

• Inductance Value: 22 µH with ±20% tolerance
• Package Compatibility: 0805 (2012 Metric) surface mount form factor
• Shielding Type: Shielded construction
• Current Handling: Minimum 300 mA continuous current rating
• DC Resistance: Operating characteristics within acceptable limits for the application
• Temperature Range: Operating capability across -40°C to 105°C minimum

The MLZ2012M220WT000 qualifies as a direct substitute based on matching inductance value, package geometry, shielding specification, and surface mount configuration. Both components share identical physical dimensions and electrical classification within the specified tolerance band.

Parameter Comparison

Engineering Selection Recommendations

The MLZ2012M220WT000 is the designated substitute for the obsolete GLFR2012T220M-LR. Selection is based on the following factors:

• Product Status: The GLFR2012T220M-LR is obsolete; the MLZ2012M220WT000 is active and maintains current manufacturing support from TDK Corporation.
• Regulatory Compliance: The MLZ2012M220WT000 carries ROHS3 compliance certification, meeting current environmental and regulatory requirements.
• Electrical Compatibility: Both components share identical inductance values, tolerance specifications, and shielding characteristics within the 0805 package footprint.
• Temperature Performance: The MLZ2012M220WT000 extends the operating temperature range to -55°C to 125°C, providing broader environmental capability.
• Current Rating Consideration: The MLZ2012M220WT000 is rated for 220 mA continuous current, which is lower than the original 300 mA specification. Circuit design must confirm that the application current requirement does not exceed 220 mA.
• DC Resistance Difference: The MLZ2012M220WT000 exhibits higher DC resistance (2 Ohm versus 700 mOhm). Power dissipation and circuit performance must be evaluated for applications sensitive to inductor resistance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the MLZ2012M220WT000 directly replace the GLFR2012T220M-LR in all applications?

A: Direct replacement is possible for applications where the circuit current requirement does not exceed 220 mA and where the increased DC resistance of 2 Ohm is acceptable. The higher DC resistance will result in increased power dissipation compared to the original 700 mOhm specification.

Q: What is the impact of the different DC resistance values?

A: The MLZ2012M220WT000 has a DC resistance of 2 Ohm compared to 700 mOhm in the GLFR2012T220M-LR. This results in approximately 2.86 times higher resistance. Power dissipation will increase proportionally with current squared (P = I²R). For a 200 mA circuit, the original part dissipates 28 mW while the substitute dissipates 80 mW.

Q: Are the physical dimensions compatible?

A: Both components use the 0805 (2012 Metric) package with identical length and width dimensions (2.00mm x 1.25mm). The seated height differs slightly (1.35mm maximum for GLFR2012T220M-LR versus 1.45mm maximum for MLZ2012M220WT000), which is within typical PCB assembly tolerances.

Q: What is the current rating limitation?

A: The MLZ2012M220WT000 is rated for 220 mA continuous current, compared to 300 mA for the original part. Applications requiring current above 220 mA cannot use this substitute without exceeding the component's rated specifications.

Q: Are there compliance differences between the two parts?

A: The MLZ2012M220WT000 is ROHS3 compliant, while the GLFR2012T220M-LR compliance status is not specified. Both components are REACH Unaffected. The active product status of the MLZ2012M220WT000 ensures ongoing compliance with current regulatory requirements.

Q: What is the saturation current difference?

A: The GLFR2012T220M-LR has a saturation current of 75 mA, while the MLZ2012M220WT000 is rated at 60 mA. Both values represent the current at which the inductor begins to saturate and lose inductance. Circuit designs must ensure operating current remains below these saturation thresholds.