L1007R101MPWRT Equivalent & Substitute Parts

Part Overview

The L1007R101MPWRT is a 100 µH unshielded drum core wirewound inductor manufactured by KEMET in the L-PWR series. This surface mount component is designed for applications requiring moderate inductance values with a current rating of 75 mA and a DC resistance of 1.89 Ohm. The part is housed in a 1007 (2518 Metric) package measuring 2.50mm × 1.80mm × 2.00mm (max height).

The L1007R101MPWRT has reached obsolete product status. Identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for ongoing production, repair, and redesign activities.

Substiute Parts

L1007R101MPWRT

KEMETIn Stock: 1063L1007R101MPWRT Datasheet

Current PartRFQ

CBC2518T101M

Taiyo YudenIn Stock: 1319CBC2518T101M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L1007R101MPWRT is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 100 µH
• Inductance tolerance: ±20%
• Package / Case: 1007 (2518 Metric)
• Core type: Ferrite, Drum Core, Wirewound
• Shielding: Unshielded
• Mounting type: Surface Mount
• Operating temperature range: -40°C to 105°C
• Frequency - Self Resonant: 9 MHz

Allowable Variation Parameters:

• Current Rating: Substitute parts must meet or exceed the 75 mA requirement
• DC Resistance (DCR): Substitute parts may vary; selection depends on circuit requirements
• RoHS and MSL compliance: Substitute parts must maintain equivalent or superior compliance status

The CBC2518T101M from Taiyo Yuden satisfies all mandatory matching parameters and provides enhanced current handling capability (170 mA) compared to the original part.

Parameter Comparison

Engineering Selection Recommendations

The CBC2518T101M from Taiyo Yuden is a direct functional equivalent to the L1007R101MPWRT. Both components share identical inductance values, package dimensions, core materials, and operating temperature specifications. Both maintain ROHS3 compliance and MSL Level 1 ratings.

The CBC2518T101M provides superior current handling capability at 170 mA compared to the original 75 mA rating, making it suitable for applications requiring higher current capacity within the same physical footprint. The increased DC resistance (4.81 Ohm Max versus 1.89 Ohm) must be evaluated against specific circuit requirements, as this parameter directly affects power dissipation and thermal performance.

The CBC2518T101M carries a "Not For New Designs" product status, indicating it remains available for existing applications but is not recommended for new development. For long-term production continuity, consultation with component suppliers regarding current-generation alternatives in the same package class is advised.

Frequently Asked Questions (FAQ)

Q: Can the CBC2518T101M be used as a direct replacement for the L1007R101MPWRT?

A: Yes. Both components share identical inductance values (100 µH), inductance tolerance (±20%), package dimensions (1007 / 2518 Metric), core materials (ferrite drum core wirewound), and operating temperature ranges (-40°C to 105°C). Physical and electrical compatibility is confirmed.

Q: What is the significance of the higher current rating in the CBC2518T101M?

A: The CBC2518T101M is rated for 170 mA compared to the L1007R101MPWRT's 75 mA. This higher rating provides design margin for applications with variable or peak current demands. However, the increased DC resistance (4.81 Ohm Max) must be factored into thermal and power dissipation calculations.

Q: How does the increased DC resistance affect circuit performance?

A: The CBC2518T101M exhibits a maximum DC resistance of 4.81 Ohm compared to 1.89 Ohm in the original part. This difference results in higher resistive losses and increased heat generation at equivalent current levels. Circuit designs sensitive to inductor losses or thermal constraints require detailed analysis before substitution.

Q: Are both parts RoHS and MSL compliant?

A: Yes. Both the L1007R101MPWRT and CBC2518T101M are ROHS3 compliant and rated at MSL Level 1 (Unlimited moisture sensitivity), indicating equivalent environmental and regulatory compliance.

Q: What is the difference between "Obsolete" and "Not For New Designs" product status?

A: "Obsolete" indicates the L1007R101MPWRT is no longer manufactured and existing inventory is limited. "Not For New Designs" indicates the CBC2518T101M remains available but manufacturers do not recommend its use in new product development. Both statuses indicate the need to identify current-generation alternatives for long-term applications.

Q: Are the package dimensions identical between both parts?

A: Yes. Both components use the 1007 (2518 Metric) package with dimensions of 2.50mm length × 1.80mm width and a maximum seated height of 2.00mm. PCB footprints and assembly processes are interchangeable.

Q: What is the self-resonant frequency specification?

A: Both parts exhibit a self-resonant frequency of 9 MHz. This parameter defines the frequency at which the inductor transitions from inductive to capacitive behavior due to parasitic capacitance. Applications operating near or above this frequency require careful evaluation.