MBKK2012T1R0M Equivalent & Substitute Parts

Part Overview

The MBKK2012T1R0M is a 1 µH shielded drum core wirewound inductor manufactured by Taiyo Yuden, rated for 1.45 A continuous current with a maximum DC resistance of 106 mOhm. This component is packaged in 0805 (2012 Metric) surface mount format and is compliant with RoHS3 standards. The part is designated as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Equivalent and substitute parts are necessary for applications requiring continued sourcing, design flexibility, or performance optimization within the specified electrical and mechanical parameters.

Substiute Parts

MBKK2012T1R0M

Taiyo YudenIn Stock: 3260MBKK2012T1R0M Datasheet

Current PartRFQ

LSBHB2012KKT1R0M

Taiyo YudenIn Stock: 982LSBHB2012KKT1R0M Datasheet

DirectRFQ

BDHE002012101R0MQ1

Pulse ElectronicsIn Stock: 940BDHE002012101R0MQ1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MBKK2012T1R0M are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Mandatory Matching Parameters:

• Inductance value: 1 µH
• Inductance tolerance: ±20%
• Package / Case: 0805 (2012 Metric)
• Mounting type: Surface Mount
• RoHS3 compliance

Allowable Variation Parameters:

• Current rating: Equal to or greater than 1.45 A
• DC resistance (DCR): Equal to or less than 106 mOhm
• Operating temperature range: Equal to or exceeding -40°C to 105°C
• Shielding: Shielded or unshielded (application-dependent)
• Core type: Drum core, wirewound, or molded construction

Substitutes are classified as direct equivalents when all mandatory parameters match and allowable variations remain within acceptable limits for the application circuit.

Parameter Comparison

Engineering Selection Recommendations

LSBHB2012KKT1R0M (Direct Equivalent - Taiyo Yuden)

The LSBHB2012KKT1R0M is a direct electrical and mechanical equivalent to the MBKK2012T1R0M. Both components share identical inductance (1 µH), tolerance (±20%), current rating (1.45 A), DC resistance (106 mOhm maximum), package format (0805), and operating temperature range (-40°C to 105°C). The LSBHB2012KKT1R0M is manufactured by Taiyo Yuden and maintains active product status, making it suitable for new designs and ongoing production. The primary difference is the absence of shielding in the LSBHB2012KKT1R0M; applications requiring electromagnetic shielding must evaluate circuit-level impact before substitution. Both parts are RoHS3 compliant with MSL 1 rating.

BDHE002012101R0MQ1 (Similar Substitute - Pulse Electronics)

The BDHE002012101R0MQ1 is a similar substitute manufactured by Pulse Electronics with matching inductance (1 µH), tolerance (±20%), and package format (0805). This molded inductor provides superior current handling (2.2 A rated, 2.3 A saturation) and lower DC resistance (78 mOhm maximum) compared to the main part, offering performance headroom for applications with higher current demands. The operating temperature range extends to 125°C, providing additional thermal margin. The BDHE002012101R0MQ1 is unshielded and maintains RoHS3 compliance. This part is suitable for applications where the MBKK2012T1R0M's 1.45 A rating is marginal or where reduced DC losses are beneficial.

Frequently Asked Questions (FAQ)

Q: Can the LSBHB2012KKT1R0M replace the MBKK2012T1R0M in all applications?

A: The LSBHB2012KKT1R0M is electrically and mechanically equivalent with one exception: it is unshielded while the MBKK2012T1R0M is shielded. In applications where electromagnetic shielding is required to prevent coupling to adjacent components or to meet EMI specifications, the unshielded substitute may not be suitable. Circuit-level evaluation is necessary to determine if shielding is functionally required.

Q: What are the advantages of the BDHE002012101R0MQ1 over the MBKK2012T1R0M?

A: The BDHE002012101R0MQ1 offers three performance advantages: (1) higher current rating of 2.2 A versus 1.45 A, providing 52% additional current capacity; (2) lower DC resistance of 78 mOhm maximum versus 106 mOhm, reducing resistive losses by approximately 26%; (3) extended operating temperature range to 125°C versus 105°C. These characteristics make it suitable for higher-power applications or thermally constrained environments.

Q: Are all three parts pin-compatible?

A: Yes. The MBKK2012T1R0M, LSBHB2012KKT1R0M, and BDHE002012101R0MQ1 share identical 0805 (2012 Metric) package dimensions (0.079" L x 0.049" W, 2.00mm x 1.25mm) and maximum seated height (0.039", 1.00mm). All three are surface mount components with identical footprint requirements.

Q: What is the significance of the MBKK2012T1R0M being marked "Not For New Designs"?

A: This designation indicates the MBKK2012T1R0M has been superseded by the manufacturer and is no longer recommended for new product development. Existing inventory remains available for legacy system support and repair. For new designs, the LSBHB2012KKT1R0M (active status) or BDHE002012101R0MQ1 (active status) are preferred selections.

Q: Do all three parts meet RoHS3 compliance requirements?

A: Yes. The MBKK2012T1R0M, LSBHB2012KKT1R0M, and BDHE002012101R0MQ1 are all RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, suitable for standard PCB assembly and storage conditions.

Q: How do the inductance test frequencies differ between parts?

A: The MBKK2012T1R0M and LSBHB2012KKT1R0M are tested at 1 MHz, while the BDHE002012101R0MQ1 is tested at 2 MHz. Both test frequencies are standard for 1 µH inductors in this package class. The inductance value (1 µH ±20%) remains valid across the operating frequency range for all three parts.