L0805C101MPWST Equivalent & Substitute Parts

Part Overview

The L0805C101MPWST is a 100 µH unshielded drum core wirewound inductor manufactured by KEMET in the 0805 (2012 Metric) surface mount package. This component is rated for 30 mA continuous current with a DC resistance of 7 Ohm and operates across the temperature range of -40°C to 105°C. The part carries an Obsolete product status, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement requirements.

Substiute Parts

L0805C101MPWST

KEMETIn Stock: 993L0805C101MPWST Datasheet

Current PartRFQ

BRL2012T101M

Taiyo YudenIn Stock: 1612BRL2012T101M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L0805C101MPWST is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Inductance value: 100 µH with ±20% tolerance
• Package / Case: 0805 (2012 Metric) surface mount
• Core type: Ferrite drum core, wirewound, unshielded
• Operating temperature range: -40°C to 105°C minimum
• Inductance test frequency: 796 kHz
• RoHS3 compliance and MSL 1 rating

Allowable Variation Parameters:

• Current rating: Substitute parts with equal or higher current capacity are acceptable
• DC resistance: Substitute parts with DCR values within the application tolerance window are acceptable
• Self resonant frequency: Variation acceptable within application bandwidth requirements

The BRL2012T101M from Taiyo Yuden meets all critical matching parameters and provides enhanced current handling capability (85 mA versus 30 mA), making it a direct functional substitute.

Parameter Comparison

Engineering Selection Recommendations

The BRL2012T101M is a direct functional equivalent for the L0805C101MPWST based on the following engineering criteria:

Compliance and Regulatory Alignment: Both parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory continuity in applications subject to environmental restrictions.

Electrical Compatibility: The substitute part maintains identical inductance value (100 µH) and tolerance (±20%) at the standard test frequency of 796 kHz. The increased current rating (85 mA versus 30 mA) provides design margin for applications operating at or near the original part's current limit.

Mechanical Compatibility: The 0805 (2012 Metric) package footprint is identical, enabling direct PCB layout compatibility. The reduced seated height (1.00mm versus 1.45mm) presents no clearance conflicts in standard surface mount assembly processes.

Product Status Consideration: While the substitute part carries a "Not For New Designs" status, it remains available in production inventory (1550 Pcs) and serves as a viable bridge solution for legacy system support and field replacements where the original KEMET part is no longer procurable.

Frequently Asked Questions (FAQ)

Q: Can the BRL2012T101M be used as a direct replacement for the L0805C101MPWST in existing designs?

A: Yes. Both parts share identical inductance value, tolerance, package footprint, and operating temperature range. The substitute part's higher current rating (85 mA) and increased DC resistance (10.01 Ohm Max versus 7 Ohm) are within acceptable variation for most applications. PCB layout modifications are not required.

Q: What is the impact of the increased DC resistance in the BRL2012T101M?

A: The BRL2012T101M exhibits a maximum DC resistance of 10.01 Ohm compared to 7 Ohm in the original part. This 3.01 Ohm difference results in increased resistive losses proportional to the square of the operating current. Applications with strict power dissipation budgets require thermal analysis to confirm acceptability.

Q: Are there differences in self-resonant frequency between these parts?

A: The L0805C101MPWST has a self-resonant frequency of 8 MHz, while the BRL2012T101M operates at 6 MHz. This 2 MHz difference may affect high-frequency performance in applications operating near or above 6 MHz. Frequency-dependent circuit behavior requires validation in the target application.

Q: Does the reduced seated height of the BRL2012T101M affect assembly or clearance?

A: The BRL2012T101M seated height is 1.00mm compared to 1.45mm for the original part. This reduction improves clearance margins and reduces overall PCB stack-up height. No assembly process modifications are required, and component clearance conflicts are eliminated.

Q: What packaging options are available for the BRL2012T101M?

A: The BRL2012T101M is supplied in Cut Tape (CT) and Digi-Reel® packaging formats, supporting both manual and automated assembly workflows. Standard reel quantities and tape specifications conform to industry-standard surface mount component handling requirements.

Q: Are both parts suitable for new design implementations?

A: The L0805C101MPWST carries an Obsolete status and is not suitable for new designs. The BRL2012T101M carries a "Not For New Designs" status. For new design implementations, consultation with component suppliers is required to identify actively produced alternatives with current product status.