MLF2012DR47KTD25 Equivalent & Substitute Parts

Part Overview

The MLF2012DR47KTD25 is a 470 nH shielded multilayer inductor manufactured by TDK Corporation, designed for surface mount applications in the 0805 (2012 Metric) package. This component is rated for 200 mA continuous current with a maximum DC resistance of 500mOhm and operates across the temperature range of -55°C to 125°C. The part maintains Active product status and carries AEC-Q200 automotive-grade certification. Equivalent substitute parts are identified when they maintain identical or compatible electrical and mechanical specifications within the allowed parameter tolerances for this inductance value and package class.

Substiute Parts

MLF2012DR47KTD25

TDK CorporationIn Stock: 1088MLF2012DR47KTD25 Datasheet

Current PartRFQ

CV201210-R47K

Bourns Inc.In Stock: 18806CV201210-R47K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MLF2012DR47KTD25 is determined by strict adherence to the following parameters:

Critical Parameters (Must Match Exactly):

• Inductance value: 470 nH with ±10% tolerance
• Package / Case: 0805 (2012 Metric)
• Shielding type: Shielded
• Mounting type: Surface Mount
• Operating temperature range: -55°C ~ 125°C minimum

Compatible Parameters (Within Specification):

• Current Rating: 200 mA or higher
• DC Resistance (DCR): 500mOhm or lower (lower DCR is acceptable as it improves performance)
• Frequency characteristics: Self-resonant frequency and Q factor variations are acceptable provided inductance and tolerance remain within specification

The substitute part CV201210-R47K from Bourns Inc. qualifies as a direct equivalent based on matching all critical parameters while maintaining compatible electrical performance within the defined tolerance window.

Parameter Comparison

Engineering Selection Recommendations

Both the MLF2012DR47KTD25 (TDK Corporation) and CV201210-R47K (Bourns Inc.) maintain Active product status and carry full compliance with ROHS3 and REACH regulations. The TDK part carries AEC-Q200 automotive-grade certification, while the Bourns part does not list this certification in the provided specifications.

For applications requiring AEC-Q200 compliance, the MLF2012DR47KTD25 is the specified choice. For general industrial and commercial applications where AEC-Q200 is not mandated, the CV201210-R47K provides equivalent electrical performance with identical package compatibility and operating temperature range. The primary electrical difference is the DC resistance specification: the TDK part specifies 500mOhm maximum while the Bourns part specifies 650mOhm maximum. This difference results in slightly higher power dissipation in the Bourns component under identical current conditions.

Frequently Asked Questions (FAQ)

Q: Can CV201210-R47K be used as a direct replacement for MLF2012DR47KTD25 in all applications?

A: The CV201210-R47K is electrically and mechanically compatible for applications not requiring AEC-Q200 certification. Both parts share identical inductance values, current ratings, package dimensions, and operating temperature ranges. The higher DC resistance of the Bourns part (650mOhm vs 500mOhm) results in increased power dissipation; applications sensitive to thermal performance should account for this difference.

Q: What is the significance of the different self-resonant frequencies (160MHz vs 125MHz)?

A: Both parts maintain identical Q factor specifications at 25 MHz, which is the standard test frequency for this inductance class. The self-resonant frequency difference reflects different core material or winding configurations between manufacturers but does not affect performance within the specified operating frequency range for 470 nH inductors in this package class.

Q: Are the physical dimensions truly identical between these parts?

A: Yes. Both parts are specified in the 0805 (2012 Metric) package with identical length (0.079" / 2.00mm), width (0.049" / 1.25mm), and maximum seated height (0.057" / 1.45mm). PCB footprints and assembly processes are directly interchangeable.

Q: What does MSL 1 (Unlimited) mean for storage and handling?

A: Moisture Sensitivity Level 1 indicates the component has unlimited shelf life under normal storage conditions. No special moisture-control packaging or baking procedures are required prior to assembly, simplifying inventory management and supply chain logistics.

Q: Why does the TDK part have AEC-Q200 certification while the Bourns part does not?

A: AEC-Q200 is an automotive-grade qualification standard. Manufacturers pursue this certification for components intended for automotive applications. The absence of this certification in the Bourns specification does not indicate inferior quality but rather reflects different market positioning and application focus between the two manufacturers.