Bourns 8230-78 Equivalent & Substitute Parts

Part Overview

The Bourns 8230-78 is a 270 µH unshielded drum core wirewound inductor rated for 65 mA with a maximum DC resistance of 25 Ohm, designed for through-hole axial mounting. This component is classified as obsolete, making identification of suitable substitutes essential for ongoing production and maintenance applications. The active equivalent variant maintains identical electrical and mechanical specifications while offering improved compliance status and current availability.

Substiute Parts

8230-78
Bourns Inc.In Stock: 8218230-78 Datasheet
8230-78
Current Part
8230-78-RC
Bourns Inc.In Stock: 8088230-78-RC Datasheet
8230-78-RC
Direct

Key Parameters

Parameter Value
Inductance 270 µH
Tolerance ±10%
Current Rating 65 mA
DC Resistance (Max) 25 Ohm
Core Material Ferrite
Shielding Unshielded
Mounting Type Through Hole
Package Axial
Operating Temperature Range -55°C to 105°C
Size 0.120" Dia x 0.300" L (3.05mm x 7.62mm)

Substitute Part Grouping Explanation

Substitution of the Bourns 8230-78 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical inductance value (270 µH), tolerance (±10%), current rating (65 mA), DC resistance (25 Ohm maximum), core material (ferrite), shielding configuration (unshielded), mounting type (through hole), package style (axial), operating temperature range (-55°C to 105°C), and physical dimensions (0.120" Dia x 0.300" L).

The Bourns 8230-78-RC qualifies as a direct substitute because it matches all specified parameters while offering active product status and improved regulatory compliance.

Parameter Comparison

Parameter 8230-78 (Main Part) 8230-78-RC (Substitute) Match Status
Inductance 270 µH 270 µH Identical
Tolerance ±10% ±10% Identical
Current Rating (Amps) 65 mA 65 mA Identical
DC Resistance (Max) 25 Ohm 25 Ohm Identical
Core Material Ferrite Ferrite Identical
Shielding Unshielded Unshielded Identical
Q @ Frequency 30 @ 790kHz 30 @ 790kHz Identical
Frequency - Self Resonant 8MHz 8MHz Identical
Operating Temperature -55°C ~ 105°C -55°C ~ 105°C Identical
Mounting Type Through Hole Through Hole Identical
Package / Case Axial Axial Identical
Size / Dimension 0.120" Dia x 0.300" L (3.05mm x 7.62mm) 0.120" Dia x 0.300" L (3.05mm x 7.62mm) Identical
Product Status Obsolete Active Substitute is Active
RoHS Status RoHS non-compliant ROHS3 Compliant Substitute offers improved compliance

Engineering Selection Recommendations

The Bourns 8230-78-RC is the direct equivalent for the obsolete 8230-78. Selection of the 8230-78-RC is appropriate for all applications currently using the 8230-78, as it provides identical electrical performance and mechanical compatibility. The substitute part offers the additional advantage of active product status, ensuring continued availability and supply chain reliability. The 8230-78-RC also meets ROHS3 compliance requirements, whereas the original part does not, making it suitable for applications with regulatory compliance mandates.

Frequently Asked Questions (FAQ)

Q: Can the 8230-78-RC be used as a direct replacement for the 8230-78?

A: Yes. The 8230-78-RC is electrically and mechanically identical to the 8230-78 across all specified parameters, including inductance, current rating, DC resistance, core material, shielding, operating temperature range, and physical dimensions. It is a direct substitute suitable for all applications.

Q: What is the primary reason to transition from the 8230-78 to the 8230-78-RC?

A: The 8230-78 is classified as obsolete, while the 8230-78-RC maintains active product status. This ensures continued availability, supply chain stability, and access to current manufacturing batches. Additionally, the 8230-78-RC is ROHS3 compliant, whereas the original part is not.

Q: Are there any differences in packaging between these parts?

A: The 8230-78 is supplied in standard packaging, while the 8230-78-RC is supplied in bulk packaging. Both parts are identical in component form and fit the same through-hole axial footprint.

Q: Will the 8230-78-RC work in existing PCB designs without modification?

A: Yes. The 8230-78-RC maintains the same axial through-hole package, physical dimensions (0.120" Dia x 0.300" L), and electrical specifications as the 8230-78. No PCB design changes are required.

Q: What are the critical parameters that define substitution eligibility?

A: Substitution is determined by matching inductance (270 µH), tolerance (±10%), current rating (65 mA), DC resistance (25 Ohm maximum), core material (ferrite), shielding (unshielded), mounting type (through hole), package style (axial), operating temperature range (-55°C to 105°C), and physical dimensions (0.120" Dia x 0.300" L).

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