GLF2012T2R2M Equivalent & Substitute Parts

Part Overview

The GLF2012T2R2M is a 2.2 µH shielded drum core wirewound inductor manufactured by TDK Corporation, designed for surface mount applications in the 0805 (2012 Metric) package. This component is rated for 700 mA continuous current with a DC resistance of 100 mOhm and operates across the temperature range of -20°C to 105°C. The product status is obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

GLF2012T2R2M

TDK CorporationIn Stock: 2356GLF2012T2R2M Datasheet

Current PartRFQ

MLZ2012A2R2MT000

TDK CorporationIn Stock: 17137MLZ2012A2R2MT000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the GLF2012T2R2M is determined by the following critical parameters:

• Inductance Value: Must be 2.2 µH with ±20% tolerance
• Package / Case: Must be 0805 (2012 Metric) for mechanical and electrical compatibility
• Shielding: Must be shielded to maintain electromagnetic isolation
• Current Rating: Must support minimum 700 mA continuous current
• DC Resistance: Must not exceed 100 mOhm to maintain circuit performance
• Operating Temperature Range: Must encompass or exceed -20°C ~ 105°C

The MLZ2012A2R2MT000 meets the inductance, package, shielding, and tolerance requirements. However, critical differences exist in current handling capability and DC resistance that must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The MLZ2012A2R2MT000 provides electrical and mechanical compatibility in package form factor and inductance specification. The substitute exhibits an extended operating temperature range (-55°C ~ 125°C) compared to the original part (-20°C ~ 105°C), providing broader environmental coverage.

The MLZ2012A2R2MT000 carries a product status of "Not For New Designs," indicating limited long-term availability. The substitute demonstrates ROHS3 compliance, whereas the original part status does not specify this certification. Both components maintain REACH Unaffected status and EAR99 export classification.

Current rating and DC resistance represent significant deviations. The substitute supports 160 mA continuous current versus the original 700 mA specification, and exhibits 260 mOhm maximum DC resistance compared to 100 mOhm. These parameters must be evaluated against specific circuit requirements to determine functional suitability.

Frequently Asked Questions (FAQ)

Q: Can the MLZ2012A2R2MT000 directly replace the GLF2012T2R2M in all applications?

A: Direct replacement is limited by current rating and DC resistance specifications. The substitute supports 160 mA versus 700 mA, and exhibits higher DC resistance (260 mOhm vs. 100 mOhm). Replacement is viable only in applications where circuit current requirements do not exceed 160 mA and where the increased resistance does not degrade circuit performance.

Q: Are the physical dimensions compatible between these parts?

A: Both components use the 0805 (2012 Metric) package with identical length and width (2.00mm x 1.25mm). The substitute exhibits a lower seated height (1.05mm vs. 1.35mm), which may provide layout advantages in space-constrained designs.

Q: What is the significance of the different core types?

A: The GLF2012T2R2M uses a drum core wirewound construction, while the MLZ2012A2R2MT000 employs multilayer construction. Both are ferrite-based shielded inductors with identical inductance and tolerance specifications. The construction difference contributes to the variations in current rating and DC resistance.

Q: Does the extended temperature range of the substitute provide additional design flexibility?

A: The MLZ2012A2R2MT000 operates from -55°C to 125°C, exceeding the original -20°C to 105°C range. This extended range may support applications requiring broader environmental operation, provided other electrical parameters remain acceptable.

Q: What is the packaging difference between these parts?

A: The original GLF2012T2R2M packaging is not specified in the provided data. The MLZ2012A2R2MT000 is supplied in Tape & Reel (TR) format, standard for high-volume surface mount assembly operations.