MAMK2520T2R2M Equivalent & Substitute Parts

Part Overview

The MAMK2520T2R2M is a 2.2 µH shielded drum core wirewound inductor manufactured by Taiyo Yuden. This surface mount component is rated for 1.9 A continuous current with a maximum DC resistance of 117 mOhm and operates across the temperature range of -40°C to 105°C. The part is housed in a 1008 (2520 Metric) package and is ROHS3 compliant with MSL 1 moisture sensitivity rating.

The MAMK2520T2R2M carries a "Not For New Designs" product status, indicating that Taiyo Yuden has discontinued active development and support for this component. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support existing production requirements where this inductor is currently specified.

Substiute Parts

MAMK2520T2R2M

Taiyo YudenIn Stock: 18304MAMK2520T2R2M Datasheet

Current PartRFQ

BDHE002520122R2MQ1

Pulse ElectronicsIn Stock: 81471BDHE002520122R2MQ1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAMK2520T2R2M are identified based on strict electrical and mechanical compatibility criteria. The following parameters must align or exceed the main part specifications to qualify as a functional substitute:

Critical Matching Parameters:

• Inductance value: 2.2 µH (±20% tolerance)
• Package / Case: 1008 (2520 Metric) surface mount
• Physical dimensions: 0.098" L x 0.079" W (2.50mm x 2.00mm), height ≤ 0.047" (1.20mm)
• Inductance test frequency: 2 MHz
• RoHS3 compliance
• MSL 1 rating

Performance Parameters for Substitution Feasibility:

• Current rating must equal or exceed 1.9 A
• DC resistance must not exceed 117 mOhm
• Saturation current (Isat) must equal or exceed 2 A
• Operating temperature range must encompass -40°C to 105°C or provide equivalent thermal performance

The BDHE002520122R2MQ1 from Pulse Electronics meets all critical matching parameters and exceeds performance specifications in current rating, saturation current, and DC resistance, making it a direct electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

BDHE002520122R2MQ1 as Primary Substitute:

The BDHE002520122R2MQ1 from Pulse Electronics is a direct substitute for the MAMK2520T2R2M. Both components share identical inductance values, package dimensions, and mounting specifications. The substitute part demonstrates superior electrical performance with a current rating of 2.9 A (versus 1.9 A) and a lower DC resistance of 83 mOhm (versus 117 mOhm maximum). The saturation current of 3.7 A exceeds the original specification of 2 A.

The BDHE002520122R2MQ1 maintains full compliance with ROHS3 and REACH requirements, carries an MSL 1 rating identical to the original part, and operates across an extended temperature range of -40°C to 125°C, which encompasses the original operating window of -40°C to 105°C.

The substitute part holds an "Active" product status, ensuring ongoing manufacturer support, availability, and supply chain continuity. This status contrasts with the "Not For New Designs" designation of the MAMK2520T2R2M, making the BDHE002520122R2MQ1 the appropriate choice for both replacement and new design applications.

Packaging Consideration:

The MAMK2520T2R2M is supplied in Cut Tape (CT) & Digi-Reel® packaging, while the BDHE002520122R2MQ1 is supplied in Tape & Reel (TR) format. Both packaging formats are standard for surface mount components and present no functional incompatibility. Procurement and assembly processes may require adjustment to accommodate the different packaging format.

Frequently Asked Questions (FAQ)

Q: Can the BDHE002520122R2MQ1 directly replace the MAMK2520T2R2M in existing designs?

A: Yes. Both components share identical inductance values (2.2 µH), package dimensions (1008 / 2520 Metric), and mounting specifications (surface mount). The BDHE002520122R2MQ1 exceeds the electrical performance requirements of the original part with higher current rating and lower DC resistance. Physical footprint compatibility is confirmed.

Q: What are the key differences between these two inductors?

A: The primary differences are: (1) Manufacturer: Taiyo Yuden versus Pulse Electronics; (2) Construction type: Shielded drum core wirewound versus unshielded molded; (3) Current rating: 1.9 A versus 2.9 A; (4) DC resistance: 117 mOhm maximum versus 83 mOhm maximum; (5) Product status: Not For New Designs versus Active; (6) Operating temperature upper limit: 105°C versus 125°C; (7) Packaging format: Cut Tape & Digi-Reel versus Tape & Reel.

Q: Does the unshielded design of the BDHE002520122R2MQ1 affect compatibility?

A: The shielding difference is a construction characteristic that does not affect electrical substitution based on the provided specifications. Shielding properties are not specified as a critical parameter for substitution in this component category. Circuit-level electromagnetic compatibility assessment may be required if shielding performance is critical to the application.

Q: Are there any compliance or regulatory concerns with substitution?

A: No. Both components are ROHS3 compliant, REACH unaffected, and carry EAR99 ECCN classification. Both maintain MSL 1 moisture sensitivity ratings and identical HTSUS codes (8504.50.8000). Regulatory and compliance profiles are equivalent.

Q: What is the impact of the different packaging formats?

A: The MAMK2520T2R2M uses Cut Tape (CT) & Digi-Reel® packaging, while the BDHE002520122R2MQ1 uses Tape & Reel (TR) format. Both are standard surface mount packaging methods. Procurement specifications, storage conditions, and assembly line handling may require adjustment, but no functional or electrical impact results from this difference.

Q: Is the extended temperature range of the BDHE002520122R2MQ1 significant?

A: The BDHE002520122R2MQ1 operates to 125°C maximum, compared to 105°C for the MAMK2520T2R2M. This extended range provides additional thermal margin and is beneficial for applications operating at elevated temperatures. For applications limited to the original -40°C to 105°C range, both parts perform equivalently.

Q: Why is the MAMK2520T2R2M marked "Not For New Designs"?

A: This designation indicates that Taiyo Yuden has discontinued active development and support for this component line. Existing inventory may remain available, but the manufacturer does not recommend this part for new design implementations. The BDHE002520122R2MQ1, with its "Active" status, is the appropriate choice for new applications.