Bourns 9310-50-RC Equivalent & Substitute Parts

Part Overview

The Bourns 9310-50-RC is a 30 µH unshielded drum core wirewound inductor rated for 255 mA with a maximum DC resistance of 2.8 Ohm. This through-hole axial component operates across the temperature range of -55°C to 105°C and is designed for applications requiring fixed inductance in compact form factors.

The 9310-50-RC has reached obsolete product status. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications currently utilizing this component.

Substiute Parts

9310-50-RC

Bourns Inc.In Stock: 7849310-50-RC Datasheet

Current PartRFQ

1537R-50J

API Delevan Inc.In Stock: 9241537R-50J Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 9310-50-RC must satisfy the following core electrical and mechanical criteria:

• Inductance value of 30 µH
• DC resistance maximum of 2.8 Ohm
• Through-hole axial mounting configuration
• Unshielded construction
• Operating temperature range of -55°C to 105°C
• Physical dimensions compatible with 0.156" Dia x 0.375" L form factor
• ROHS3 compliance and REACH unaffected status

The API Delevan 1537R-50J meets these substitution criteria. While the substitute exhibits a lower current rating (191 mA versus 255 mA) and tighter inductance tolerance (±5% versus ±10%), it maintains electrical equivalence for the specified inductance and resistance parameters. The molded construction and iron core material differ from the original drum core ferrite design but do not preclude functional substitution in applications operating within the 191 mA current envelope.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 1537R-50J is suitable as a substitute for the obsolete Bourns 9310-50-RC in applications where the circuit current requirement does not exceed 191 mA. Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment.

The 1537R-50J offers the advantage of active product status, providing assured long-term availability and supply chain stability. The tighter inductance tolerance of ±5% may provide improved circuit performance in applications sensitive to inductance variation.

Selection of the substitute should be verified against the specific current demands of the target application. If circuit operation requires current levels between 191 mA and 255 mA, the original 9310-50-RC specifications cannot be met by the 1537R-50J substitute.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 1537R-50J directly replace the Bourns 9310-50-RC in all applications?

A: Direct replacement is possible only in applications where the circuit current does not exceed 191 mA. The substitute has a lower current rating than the original part. If your application requires the full 255 mA rating, the 1537R-50J is not suitable.

Q: What are the key electrical differences between these two inductors?

A: Both parts provide 30 µH inductance with 2.8 Ohm maximum DC resistance. The 1537R-50J has a tighter inductance tolerance (±5% versus ±10%) and a higher self-resonant frequency (21 MHz versus 19 MHz). The current rating differs: 191 mA for the substitute versus 255 mA for the original.

Q: Are the physical dimensions identical?

A: Yes. Both components share the same axial form factor with dimensions of 0.156" diameter by 0.375" length (3.96mm x 9.53mm), ensuring mechanical compatibility in through-hole PCB layouts.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the Bourns 9310-50-RC and API Delevan 1537R-50J are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: Why does the substitute have a different core material?

A: The 1537R-50J uses an iron core with molded construction, while the original uses a ferrite drum core. Both designs achieve the specified 30 µH inductance and 2.8 Ohm resistance within the operating temperature range. Core material differences do not affect substitution eligibility when electrical parameters are equivalent.

Q: What is the packaging difference between these parts?

A: The Bourns 9310-50-RC is supplied in standard packaging. The API Delevan 1537R-50J is supplied in Tape & Reel (TR) format, which is standard for active production components and may require reel handling during assembly.