MLF2012DR82MTD25 Equivalent & Substitute Parts

Part Overview

The MLF2012DR82MTD25 is a 820 nH shielded multilayer inductor manufactured by TDK Corporation, designed for surface mount applications in the 0805 (2012 Metric) package. This component operates at 150 mA current rating with a maximum DC resistance of 650mOhm and is rated for operating temperatures from -55°C to 125°C. The part is currently in active production status and carries AEC-Q200 automotive qualification. Equivalent parts are identified when they maintain the same inductance value, current rating, package form factor, and core material while meeting the same environmental and compliance standards.

Substiute Parts

MLF2012DR82MTD25

TDK CorporationIn Stock: 876MLF2012DR82MTD25 Datasheet

Current PartRFQ

CV201210-R82K

Bourns Inc.In Stock: 12989CV201210-R82K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MLF2012DR82MTD25 is determined by the following critical parameters:

• Inductance Value: Must be 820 nH to maintain circuit functionality
• Current Rating: Must support minimum 150 mA to ensure safe operation
• Package Form Factor: Must be 0805 (2012 Metric) for PCB layout compatibility
• Core Material: Must be ferrite to maintain electromagnetic characteristics
• Shielding: Must be shielded to prevent electromagnetic interference
• Operating Temperature Range: Must cover -55°C to 125°C minimum
• Compliance Standards: Must maintain ROHS3 compliance and equivalent environmental ratings

The Bourns CV201210-R82K meets all substitution criteria while maintaining electrical and mechanical compatibility with the original TDK component.

Parameter Comparison

Engineering Selection Recommendations

Both the MLF2012DR82MTD25 and CV201210-R82K are active production components with equivalent compliance certifications. The TDK MLF2012DR82MTD25 carries AEC-Q200 automotive qualification. Selection between these parts should be based on:

• DC Resistance Specification: The TDK part specifies 650mOhm maximum DCR, while the Bourns part specifies 1Ohm maximum. Applications requiring lower DC resistance losses should prioritize the TDK component.
• Inductance Tolerance: The Bourns CV201210-R82K offers tighter tolerance (±10%) compared to the TDK part (±20%), providing better inductance value consistency.
• Self-Resonant Frequency: The TDK part exhibits a higher self-resonant frequency (130MHz vs 100MHz), which may be advantageous in high-frequency applications.
• Availability and Lead Time: Component selection may be influenced by inventory levels and supplier delivery schedules.

Both parts maintain identical physical dimensions, operating temperature ranges, and compliance status, ensuring direct PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can the Bourns CV201210-R82K directly replace the TDK MLF2012DR82MTD25 on existing PCBs?

A: Yes. Both components share identical package dimensions (0805/2012 Metric), mounting type (surface mount), and footprint requirements. No PCB layout modifications are necessary.

Q: What is the significance of the DC resistance difference between these parts?

A: The TDK part specifies 650mOhm maximum DCR while the Bourns part specifies 1Ohm maximum. In circuits where inductor losses directly impact efficiency or thermal performance, the lower DCR of the TDK component may be preferred. For general-purpose filtering and coupling applications, both specifications are typically acceptable.

Q: Are both parts suitable for automotive applications?

A: The TDK MLF2012DR82MTD25 carries AEC-Q200 automotive qualification. The Bourns CV201210-R82K does not list AEC-Q200 certification in the provided specifications. For automotive applications requiring AEC-Q200 compliance, the TDK part is the specified choice.

Q: How do the inductance tolerances affect circuit design?

A: The Bourns part offers ±10% tolerance versus the TDK part's ±20% tolerance. Tighter tolerance reduces inductance value variation across production batches, which is beneficial for precision filtering, impedance matching, and resonant circuit applications where inductance accuracy is critical.

Q: What is the maximum operating frequency for these inductors?

A: The self-resonant frequencies are 130MHz for the TDK part and 100MHz for the Bourns part. These values represent the frequency at which the inductor transitions from inductive to capacitive behavior. For applications operating below these frequencies, both parts are suitable.

Q: Are moisture sensitivity considerations relevant for these components?

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard handling and storage practices apply without special moisture control requirements.