GLF2012T220K Equivalent & Substitute Parts

Part Overview

The GLF2012T220K is a 22 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 220 mA continuous current with 1Ω DC resistance and operates across the temperature range of -20°C to 105°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production continuity.

Substiute Parts

GLF2012T220K

TDK CorporationIn Stock: 1844GLF2012T220K Datasheet

Current PartRFQ

LBR2012T220K

Taiyo YudenIn Stock: 6411LBR2012T220K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the GLF2012T220K is determined by the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 22 µH
• DC Resistance: 1Ω
• Package / Case: 0805 (2012 Metric)
• Mounting Type: Surface Mount
• Tolerance: ±10%

Allowable Variation Parameters:

• Current Rating: The substitute part may have a lower current rating if the application does not require the full 220 mA specification
• Shielding: Substitution between shielded and unshielded configurations is permissible when electromagnetic interference considerations do not mandate shielding
• Operating Temperature Range: The substitute may have an extended or different temperature range, provided it encompasses the application's operating conditions
• Core Material and Type: Variations in core construction are acceptable if inductance and DCR specifications are maintained

The LBR2012T220K from Taiyo Yuden meets the mandatory matching parameters and is therefore classified as a direct substitute, with the noted exception of reduced current rating (100 mA versus 220 mA) and unshielded construction.

Parameter Comparison

Engineering Selection Recommendations

The LBR2012T220K is a functional substitute for the GLF2012T220K based on matching inductance, tolerance, DC resistance, and package specifications. However, the following considerations apply to component selection:

Current Rating Derating: The LBR2012T220K is rated for 100 mA continuous current, compared to the GLF2012T220K's 220 mA rating. Selection of this substitute requires verification that the application's actual current demand does not exceed 100 mA. Exceeding this rating may result in thermal stress and reduced component reliability.

Shielding Configuration: The LBR2012T220K is unshielded, whereas the GLF2012T220K provides shielding. Applications requiring electromagnetic shielding to minimize coupling or interference must evaluate whether unshielded operation is acceptable for the circuit topology.

Product Status and Compliance: The LBR2012T220K carries a "Not For New Designs" status and is ROHS3 compliant. The GLF2012T220K is obsolete. For new production designs, alternative 22 µH 0805 inductors with active product status should be evaluated if available.

Temperature Range: The LBR2012T220K operates across -40°C to 105°C, providing extended low-temperature performance compared to the GLF2012T220K's -20°C to 105°C range.

Frequently Asked Questions (FAQ)

Q: Can the LBR2012T220K directly replace the GLF2012T220K in all applications?

A: Direct substitution is possible only if the application's current requirement does not exceed 100 mA and electromagnetic shielding is not a circuit requirement. The matching inductance, tolerance, DCR, and package ensure electrical and mechanical compatibility within these constraints.

Q: What is the impact of using an unshielded inductor in place of a shielded one?

A: Unshielded inductors exhibit greater magnetic field radiation and are more susceptible to external magnetic field coupling. Applications sensitive to electromagnetic interference or requiring controlled magnetic field containment must evaluate circuit-level impact. Shielded designs are recommended for noise-sensitive analog circuits and high-frequency applications.

Q: Does the lower current rating of the LBR2012T220K affect inductor performance?

A: The current rating defines the maximum continuous current before thermal and saturation effects degrade performance. Operating below the rated current ensures stable inductance and minimal core loss. If the application requires 220 mA operation, the LBR2012T220K is not suitable.

Q: Are there compliance differences between these parts?

A: The LBR2012T220K is ROHS3 compliant; the GLF2012T220K compliance status is not specified in the provided data. For applications requiring RoHS certification, the LBR2012T220K meets this requirement.

Q: Can I use the extended temperature range of the LBR2012T220K as an advantage?

A: Yes. The LBR2012T220K's -40°C to 105°C range provides additional margin for applications operating at temperatures below -20°C, offering improved reliability in cold environment deployments.