GLCR2012T1R0M-HC Equivalent & Substitute Parts

Part Overview

The GLCR2012T1R0M-HC is a 1 µH shielded wirewound inductor manufactured by TDK Corporation, rated for 900 mA continuous current with 90mOhm DC resistance in a 0805 (2012 Metric) surface mount package. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements.

Substiute Parts

GLCR2012T1R0M-HC

TDK CorporationIn Stock: 973GLCR2012T1R0M-HC Datasheet

Current PartRFQ

MLZ2012M1R0HT000

TDK CorporationIn Stock: 25152MLZ2012M1R0HT000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GLCR2012T1R0M-HC is determined by the following critical parameters:

• Inductance value: 1 µH (exact match required)
• Package / Case: 0805 (2012 Metric) (physical compatibility)
• Shielding: Shielded (electromagnetic performance requirement)
• Current Rating: minimum 900 mA (functional requirement)
• DC Resistance: maximum 90 mOhm (thermal and efficiency consideration)
• Tolerance: ±20% (specification compliance)

The MLZ2012M1R0HT000 qualifies as a substitute based on matching inductance, package, shielding, and tolerance specifications. While the substitute exhibits different construction (multilayer vs. wirewound), saturation current, and operating temperature range, these variations remain within acceptable substitution parameters for the defined electrical and mechanical requirements.

Parameter Comparison

Engineering Selection Recommendations

The MLZ2012M1R0HT000 is the designated substitute for the obsolete GLCR2012T1R0M-HC. Selection is supported by the following factors:

• Active product status ensures ongoing availability and supply chain continuity
• RoHS3 compliance provides regulatory advantage over the obsolete predecessor
• Identical inductance, tolerance, package, and shielding specifications ensure functional compatibility
• Extended operating temperature range (-55°C ~ 125°C vs. -40°C ~ 105°C) provides broader application scope
• REACH Unaffected status maintains regulatory compliance

Current rating reduction from 900 mA to 800 mA and DC resistance increase from 90 mOhm to 100 mOhm require circuit-level evaluation. Applications operating at or above 800 mA continuous current or with thermal constraints sensitive to the 10 mOhm DCR increase must be assessed individually.

Frequently Asked Questions (FAQ)

Q: Can MLZ2012M1R0HT000 directly replace GLCR2012T1R0M-HC in all applications?

A: Direct replacement is possible for applications operating at or below 800 mA continuous current. The 100 mOhm DC resistance of the substitute is 10 mOhm higher than the original, resulting in increased power dissipation. Applications requiring the full 900 mA rating or operating near thermal limits require circuit analysis.

Q: What is the physical compatibility between these parts?

A: Both components use the 0805 (2012 Metric) package with identical footprint dimensions (2.00mm L x 1.25mm W). The substitute height is 0.004" (0.10mm) greater (1.45mm vs. 1.35mm), which is negligible for standard PCB assembly and does not affect board-level compatibility.

Q: Why is the saturation current different between the two parts?

A: The GLCR2012T1R0M-HC uses wirewound construction with 490 mA saturation current, while the MLZ2012M1R0HT000 uses multilayer ferrite construction with 700 mA saturation current. This difference reflects different core materials and winding architectures but does not affect substitution validity when operating within the specified current ratings.

Q: Are there compliance or certification differences?

A: The MLZ2012M1R0HT000 carries RoHS3 compliance, while the obsolete GLCR2012T1R0M-HC does not specify this certification. Both maintain REACH Unaffected status. For applications requiring RoHS3 compliance, the substitute provides regulatory advantage.

Q: What is the frequency performance difference?

A: The MLZ2012M1R0HT000 specifies a self-resonant frequency of 150 MHz and inductance test frequency of 2 MHz. The original part does not provide these specifications. For high-frequency applications, the substitute's defined frequency characteristics enable more precise circuit design.