Bourns 7010 Inductor Array - Equivalent & Substitute Parts

Part Overview

The Bourns 7010 is an unshielded 2-coil inductor array designed for through-hole mounting applications. This component features 250 µH series inductance with a 1.5 A current rating and operates across the -55°C to 105°C temperature range. The product is classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

7010

Bourns Inc.In Stock: 10707010 Datasheet

Current PartRFQ

DRQ127-151-R

Eaton - Electronics DivisionIn Stock: 1874DRQ127-151-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Bourns 7010 requires evaluation of the following critical parameters:

Inductance Specifications: The main part specifies 250 µH in series configuration. Substitute parts must provide equivalent inductance values within acceptable tolerance ranges for the intended application.

Current Rating: The 1.5 A series current rating establishes the maximum continuous current capability. Substitute parts must meet or exceed this specification.

DC Resistance: The 470 mOhm maximum series DCR defines acceptable power dissipation characteristics. Lower DCR values indicate improved efficiency.

Coil Configuration: Both the main part and substitute must feature 2-coil arrays to maintain circuit compatibility.

Operating Temperature Range: The -55°C to 105°C operating window must be supported by substitute components.

Mounting and Packaging: Physical form factor and mounting method must align with PCB design requirements.

The Eaton DRQ127-151-R is identified as a substitute based on its 2-coil configuration and parallel inductance of 144.9 µH, which falls within the functional range for applications requiring inductor arrays. However, this substitute introduces differences in shielding, mounting technology, and electrical characteristics that require engineering evaluation for specific applications.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The Bourns 7010 is obsolete, necessitating alternative component selection for new designs or ongoing production support. The Eaton DRQ127-151-R maintains active product status, ensuring continued availability and manufacturer support.

Compliance Status: The Bourns 7010 is RoHS non-compliant. The Eaton DRQ127-151-R is ROHS3 compliant, meeting current environmental and regulatory requirements for electronics manufacturing.

Electrical Performance Trade-offs: The Eaton substitute exhibits higher series inductance (579.6 µH vs. 250 µH) and increased series DCR (989 mOhm vs. 470 mOhm Max). The series current rating is reduced to 796 mA, below the original 1.5 A specification. These differences require circuit-level analysis to determine functional equivalence.

Physical Form Factor: The transition from through-hole radial mounting to surface-mount nonstandard packaging requires PCB redesign. This represents a significant implementation change beyond component substitution.

Frequently Asked Questions (FAQ)

Q: Can the Eaton DRQ127-151-R directly replace the Bourns 7010 in existing through-hole designs?

A: No. The Eaton part uses surface-mount technology with a nonstandard package, while the Bourns 7010 is through-hole radial. Direct PCB-level substitution is not possible without redesign.

Q: What are the key electrical differences between these parts?

A: The Eaton DRQ127-151-R provides 579.6 µH series inductance compared to the Bourns 7010's 250 µH. Series current rating decreases from 1.5 A to 796 mA. Series DCR increases from 470 mOhm to 989 mOhm. These differences affect power dissipation, current handling, and inductance matching in the circuit.

Q: Why is the Bourns 7010 obsolete?

A: The product status reflects manufacturer discontinuation. Existing inventory may be available through authorized distributors, but long-term procurement cannot be assured.

Q: Does the shielding difference affect substitution?

A: The Bourns 7010 is unshielded while the Eaton DRQ127-151-R is shielded. Shielding reduces electromagnetic interference but may alter circuit behavior in applications sensitive to coupling characteristics.

Q: What compliance advantages does the Eaton part offer?

A: The Eaton DRQ127-151-R is ROHS3 compliant and meets current environmental regulations, whereas the Bourns 7010 is RoHS non-compliant. This is significant for designs requiring regulatory compliance in restricted substance directives.

Q: Are there packaging considerations for the Eaton substitute?

A: Yes. The Eaton part is supplied in Tape & Reel (TR) packaging for automated assembly, whereas the Bourns 7010 uses through-hole packaging. This affects procurement, handling, and assembly processes.