Equivalent & Substitute Parts for Bourns 9310-46-RC

Part Overview

The Bourns 9310-46-RC is a 24 µH unshielded drum core wirewound inductor rated for 265 mA with a maximum DC resistance of 2.5 Ohm. This component is designed for through-hole axial mounting applications requiring fixed inductance in the microhenry range. The 9310-46-RC carries an obsolete product status, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity.

Substiute Parts

9310-46-RC

Bourns Inc.In Stock: 11259310-46-RC Datasheet

Current PartRFQ

1537R-46J

API Delevan Inc.In Stock: 10071537R-46J Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The API Delevan 1537R-46J qualifies as a functional substitute for the Bourns 9310-46-RC based on the following critical parameters:

• Inductance Value: Both parts specify 24 µH, meeting the primary functional requirement
• DC Resistance: Both maintain 2.5 Ohm maximum, ensuring equivalent power dissipation characteristics
• Q Factor: Both deliver 60 @ 2.5 MHz, confirming equivalent frequency response performance
• Self Resonant Frequency: Both rated at 26 MHz, establishing identical high-frequency behavior
• Operating Temperature Range: Both support -55°C to 105°C, providing equivalent thermal performance
• Mounting Configuration: Both are through-hole axial components with identical physical dimensions (0.156" Dia × 0.375" L)
• Shielding Classification: Both are unshielded, maintaining electromagnetic characteristics

The primary distinction lies in current rating capacity and core material composition, which are addressed in the parameter comparison section.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 1537R-46J is an active product with current manufacturing support, providing supply chain continuity for applications previously using the obsolete Bourns 9310-46-RC. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent applications.

The 1537R-46J exhibits a tighter inductance tolerance (±5% versus ±10%), which may provide improved circuit performance in applications sensitive to inductance variation. The substitute part carries a reduced current rating of 202 mA compared to the original 265 mA specification. Circuit designs must verify that operating current remains within the 202 mA limit to ensure reliable performance.

Both components share identical DC resistance, Q factor, self-resonant frequency, and thermal operating range, confirming functional equivalence for frequency response and thermal management. Physical dimensions and mounting configuration are identical, enabling direct mechanical substitution without PCB redesign.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 1537R-46J directly replace the Bourns 9310-46-RC in existing designs?

A: Direct substitution is possible when circuit operating current does not exceed 202 mA. The tighter tolerance of the substitute part (±5%) may improve circuit performance. Verify current requirements before implementation.

Q: What is the significance of the different core materials (ferrite versus iron)?

A: Both core materials deliver identical electrical performance as specified in the parameter comparison. The core material difference does not affect inductance value, Q factor, or frequency response within the specified operating parameters.

Q: Are there any compliance or certification differences between these parts?

A: Both components maintain ROHS3 compliance and REACH unaffected status. No compliance barriers exist for substitution in regulated applications.

Q: How do the packaging formats differ?

A: The original Bourns part is supplied in bulk packaging, while the API Delevan substitute is available in Tape & Reel format. This difference affects procurement and assembly processes but does not impact electrical or mechanical performance.

Q: What is the impact of the inductance tolerance difference?

A: The substitute part specifies ±5% tolerance compared to ±10% for the original. This tighter tolerance may reduce circuit performance variation in applications where inductance precision is critical.

Q: Are the physical dimensions identical?

A: Yes. Both components measure 0.156" diameter × 0.375" length (3.96 mm × 9.53 mm), enabling direct mechanical substitution without PCB layout modifications.