DFE252012PD-R33M=P2 Equivalent & Substitute Parts

Part Overview

The DFE252012PD-R33M=P2 is a 330 nH shielded drum core wirewound inductor manufactured by Murata Electronics, designed for surface mount applications in the 1008 (2520 Metric) package. This component is rated for 4.6 A continuous current with a maximum DC resistance of 23 mOhm and operates across the temperature range of -40°C to 125°C. The part maintains Active product status and carries AEC-Q200 automotive qualification, making it suitable for demanding industrial and automotive applications. Identifying equivalent substitute parts is essential for supply chain continuity, design flexibility, and procurement optimization when the primary part becomes unavailable or when alternative sourcing is required.

Key Parameters

Parameter	Value
Inductance	330 nH
Inductance Tolerance	±20%
Current Rating	4.6 A
Saturation Current (Isat)	6 A
DC Resistance (DCR)	23 mOhm Max
Core Type	Drum Core, Wirewound
Core Material	Iron Powder
Shielding	Shielded
Package / Case	1008 (2520 Metric)
Mounting Type	Surface Mount
Operating Temperature Range	-40°C to 125°C
Inductance Test Frequency	1 MHz
Features	Flat Wire
Ratings	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DFE252012PD-R33M=P2 must satisfy the following critical parameters to ensure functional and mechanical compatibility:

Electrical Parameters:

Inductance value of 330 nH with tolerance of ±20%
Current rating of 4.6 A minimum
Saturation current (Isat) of 6 A minimum
DC resistance (DCR) not exceeding 23 mOhm

Mechanical & Physical Parameters:

Package / Case: 1008 (2520 Metric)
Mounting Type: Surface Mount
Core Type: Drum Core, Wirewound
Core Material: Iron Powder
Shielding: Shielded
Features: Flat Wire construction

Environmental & Compliance Parameters:

Operating Temperature Range: -40°C to 125°C
Inductance Test Frequency: 1 MHz
Ratings: AEC-Q200 qualification
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts must match all specified parameters. Deviations in inductance value, current rating, package dimensions, or compliance certifications disqualify a part from substitution consideration.

Parameter Comparison

Parameter	DFE252012PD-R33M=P2 (Main Part)	Substitute Status
Manufacturer	Murata Electronics	Parametric Equivalent
Inductance	330 nH	Match Required
Inductance Tolerance	±20%	Match Required
Current Rating (Amps)	4.6 A	Match Required
Saturation Current (Isat)	6 A	Match Required
DC Resistance (DCR)	23 mOhm Max	Match Required
Core Type	Drum Core, Wirewound	Match Required
Core Material	Iron Powder	Match Required
Shielding	Shielded	Match Required
Package / Case	1008 (2520 Metric)	Match Required
Mounting Type	Surface Mount	Match Required
Size / Dimension	0.098" L x 0.079" W (2.50mm x 2.00mm)	Match Required
Height - Seated (Max)	0.047" (1.20mm)	Match Required
Operating Temperature Range	-40°C to 125°C	Match Required
Inductance Test Frequency	1 MHz	Match Required
Features	Flat Wire	Match Required
Ratings	AEC-Q200	Match Required
RoHS Status	ROHS3 Compliant	Match Required
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Match Required
Product Status	Active	Active Status Preferred

Engineering Selection Recommendations

When selecting substitute parts for the DFE252012PD-R33M=P2, the following engineering criteria apply:

Product Status Consideration: The main part maintains Active product status with Murata Electronics, ensuring ongoing availability and manufacturing support. Substitute parts should maintain Active status to guarantee long-term supply chain reliability and consistent quality standards.

Compliance & Certification: The DFE252012PD-R33M=P2 carries AEC-Q200 automotive qualification, ROHS3 compliance, and REACH unaffected status. Substitute parts must maintain identical compliance certifications to ensure suitability for regulated applications and environmental standards.

Packaging & Handling: Moisture Sensitivity Level 1 (Unlimited) indicates no special moisture control requirements during storage or handling. Substitute parts with identical MSL classification ensure compatibility with existing supply chain logistics and assembly processes.

Electrical Performance: All electrical parameters—inductance value, current rating, saturation current, and DC resistance—must match exactly as specified. These parameters directly determine circuit performance and thermal behavior in the application.

Physical Compatibility: The 1008 (2520 Metric) surface mount package with flat wire construction and specified dimensions must be maintained to ensure PCB layout compatibility and assembly process alignment.

Frequently Asked Questions (FAQ)

Q: What defines a valid substitute for the DFE252012PD-R33M=P2?

A: A valid substitute must match all electrical parameters (330 nH inductance, 4.6 A current rating, 6 A saturation current, 23 mOhm maximum DCR), mechanical specifications (1008 package, surface mount, flat wire), core characteristics (drum core, iron powder, shielded), and compliance requirements (AEC-Q200, ROHS3, MSL 1). Any deviation disqualifies the part from substitution.

Q: Can inductors with different package sizes substitute for the DFE252012PD-R33M=P2?

A: No. The 1008 (2520 Metric) package is a critical mechanical specification. Different package sizes alter PCB footprint, mounting compatibility, and thermal characteristics. Package substitution requires complete circuit redesign and PCB layout modification.

Q: Are inductors with higher current ratings acceptable substitutes?

A: Higher current ratings alone do not qualify a part as a substitute unless all other parameters match exactly. The 4.6 A rating is specified for this application. Parts with different inductance values, DCR, or core materials are not interchangeable regardless of current rating.

Q: What is the significance of the flat wire feature?

A: Flat wire construction is a specific design feature of the DFE252012PD-R33M=P2 that affects electrical performance and thermal characteristics. Substitute parts must maintain this feature to ensure equivalent performance in the target application.

Q: Does AEC-Q200 certification apply to all substitute parts?

A: AEC-Q200 certification is a mandatory requirement for substitute parts. This automotive qualification ensures the part meets stringent reliability and quality standards. Parts without AEC-Q200 certification are not acceptable substitutes for automotive or regulated applications.

Q: Can shielded and unshielded inductors be interchanged?

A: No. The DFE252012PD-R33M=P2 is specified as shielded, which reduces electromagnetic interference and affects circuit performance. Unshielded inductors have different electrical characteristics and are not valid substitutes.

Q: What is the importance of matching the ±20% inductance tolerance?

A: Inductance tolerance directly affects circuit performance, frequency response, and impedance matching. The ±20% tolerance is part of the electrical specification. Substitute parts must maintain this tolerance to ensure predictable circuit behavior.

Q: Are there any temperature range considerations for substitution?

A: Yes. The operating temperature range of -40°C to 125°C is a critical specification. Substitute parts must support this identical temperature range to ensure reliable operation across all environmental conditions specified for the application.

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