MLF2012DR33MT Equivalent & Substitute Parts

Part Overview

The MLF2012DR33MT is a 330 nH shielded multilayer inductor manufactured by TDK Corporation, designed for surface mount applications in the 0805 (2012 Metric) package. This component is rated for 250 mA continuous current with a maximum DC resistance of 400 mOhm and operates across the temperature range of -55°C to 125°C. The part carries a "Not For New Designs" status, indicating that TDK has discontinued active development for this specific model variant. Identifying equivalent substitute parts is necessary for ongoing production support, legacy system maintenance, and design continuity where this inductance value and package format are required.

Substiute Parts

MLF2012DR33MT

TDK CorporationIn Stock: 1252MLF2012DR33MT Datasheet

Current PartRFQ

MLF2012DR33KT000

TDK CorporationIn Stock: 8449MLF2012DR33KT000 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MLF2012DR33MT is determined by strict equivalence across the following critical parameters:

• Inductance Value: 330 nH (exact match required)
• Package Format: 0805 (2012 Metric) surface mount (physical and electrical compatibility)
• Current Rating: Minimum 250 mA (equal or greater)
• DC Resistance: Maximum 400 mOhm (equal or lower)
• Shielding Type: Shielded (electromagnetic containment requirement)
• Operating Temperature Range: -55°C to 125°C (minimum coverage)
• Core Material: Ferrite (electrical performance consistency)

The MLF2012DR33KT000 meets all substitution criteria. While it features an improved tolerance specification (±10% versus ±20%), this represents a performance enhancement rather than a deviation, making it a direct functional equivalent suitable for replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The MLF2012DR33KT000 is the direct substitute for the MLF2012DR33MT. Both components are manufactured by TDK Corporation and maintain identical electrical and mechanical specifications across all critical parameters. The MLF2012DR33KT000 carries an "Active" product status, ensuring ongoing availability and manufacturing support, whereas the MLF2012DR33MT is designated "Not For New Designs."

Both parts maintain full compliance with ROHS3 and REACH regulatory requirements, with identical moisture sensitivity ratings (MSL 1 - Unlimited) and ECCN/HTSUS classifications. The MLF2012DR33KT000 offers the additional benefit of tighter inductance tolerance (±10% versus ±20%), which may provide improved circuit performance in applications where inductance precision is critical.

For applications currently using MLF2012DR33MT, transition to MLF2012DR33KT000 is supported without circuit redesign or PCB layout modification, as physical footprint and electrical performance are fully compatible.

Frequently Asked Questions (FAQ)

Q: Can MLF2012DR33KT000 be used as a direct replacement for MLF2012DR33MT?

A: Yes. Both components share identical inductance (330 nH), current rating (250 mA), DC resistance (400 mOhm max), package format (0805/2012 Metric), and operating temperature range (-55°C to 125°C). Physical dimensions and mounting characteristics are identical, allowing direct PCB substitution without layout changes.

Q: What is the difference between the ±20% tolerance of MLF2012DR33MT and the ±10% tolerance of MLF2012DR33KT000?

A: Tolerance defines the acceptable range of inductance variation from the nominal 330 nH value. MLF2012DR33MT allows ±20% variation (264–396 nH), while MLF2012DR33KT000 allows ±10% variation (297–363 nH). The tighter tolerance of MLF2012DR33KT000 provides greater inductance precision, which may benefit circuits requiring stricter frequency response or impedance matching.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both components are ROHS3 compliant, REACH unaffected, and carry identical MSL 1 (Unlimited) moisture sensitivity ratings. They share the same ECCN (EAR99) and HTSUS (8504.50.8000) classifications.

Q: Why is MLF2012DR33MT marked "Not For New Designs"?

A: This designation indicates that TDK has transitioned this part variant to end-of-life status and is no longer recommending it for new product development. The MLF2012DR33KT000 is the active equivalent and should be used for new designs and ongoing production.

Q: Will switching from MLF2012DR33MT to MLF2012DR33KT000 require circuit redesign?

A: No. The electrical and mechanical specifications are equivalent across all functional parameters. No PCB layout modifications, component footprint adjustments, or circuit topology changes are necessary.