Bourns 9310-06 Fixed Inductor: Equivalent & Substitute Parts

Part Overview

The Bourns 9310-06 is a 470 nH unshielded drum core wirewound inductor rated for 1.225 A with a maximum DC resistance of 120 mOhm. This component is designed for through-hole axial mounting in RF and general-purpose filtering applications. The part is currently obsolete, making identification of compatible substitute components essential for ongoing production support and design continuity.

Key Parameters

Parameter	Value
Inductance	470 nH
Tolerance	±20%
Current Rating	1.225 A
DC Resistance (Max)	120 mOhm
Shielding	Unshielded
Q @ 25 MHz	45
Self Resonant Frequency	310 MHz
Operating Temperature Range	-55°C to 105°C
Mounting Type	Through Hole Axial
Package Dimensions	0.156" Dia × 0.375" L (3.96 mm × 9.53 mm)

Substitute Part Grouping Explanation

Substitution of the Bourns 9310-06 is determined by the following critical parameters:

Inductance Value: 470 nH with ±20% tolerance
Current Rating: Minimum 1.225 A
DC Resistance: Maximum 120 mOhm
Frequency Characteristics: Q factor of 45 @ 25 MHz and self-resonant frequency of 310 MHz
Mounting Configuration: Through-hole axial package with identical physical dimensions (0.156" Dia × 0.375" L)
Shielding Type: Unshielded construction
Operating Temperature: Functional across -55°C to 105°C minimum

The API Delevan 1537-06M meets all substitution criteria. While it employs molded construction rather than drum core design, it maintains electrical equivalence across all specified parameters and physical compatibility with the original footprint.

Parameter Comparison

Parameter	Bourns 9310-06	API Delevan 1537-06M	Match Status
Inductance	470 nH	470 nH	Equivalent
Tolerance	±20%	±20%	Equivalent
Current Rating (A)	1.225	1.37	Substitute Exceeds
DC Resistance (Max)	120 mOhm	120 mOhm	Equivalent
Shielding	Unshielded	Unshielded	Equivalent
Q @ 25 MHz	45	45	Equivalent
Self Resonant Frequency	310 MHz	310 MHz	Equivalent
Operating Temperature Range	-55°C to 105°C	-55°C to 125°C	Substitute Exceeds
Mounting Type	Through Hole Axial	Through Hole Axial	Equivalent
Package Dimensions	0.156" Dia × 0.375" L	0.156" Dia × 0.375" L	Equivalent
Product Status	Obsolete	Active	Substitute Active

Engineering Selection Recommendations

The API Delevan 1537-06M is a direct functional substitute for the Bourns 9310-06. The substitute part maintains electrical performance across all critical parameters: inductance value, tolerance, current rating, DC resistance, and frequency characteristics. The API Delevan component exceeds the original specification in current rating (1.37 A vs. 1.225 A) and operating temperature range (-55°C to 125°C vs. -55°C to 105°C), providing enhanced performance margins.

Both components are RoHS non-compliant and REACH unaffected. The substitute part is currently in active production status with confirmed inventory availability, whereas the original Bourns component is obsolete. Physical compatibility is maintained through identical axial package dimensions and through-hole mounting configuration.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 1537-06M be used as a direct replacement for the Bourns 9310-06?

A: Yes. The API Delevan 1537-06M meets all electrical and mechanical specifications of the Bourns 9310-06. Both components share identical inductance values, tolerances, DC resistance, frequency characteristics, and physical dimensions. The substitute part is pin-compatible and footprint-compatible for through-hole axial mounting.

Q: What is the difference between drum core and molded construction?

A: The Bourns 9310-06 uses drum core wirewound construction, while the API Delevan 1537-06M uses molded construction. Both achieve the same electrical performance specifications. Molded construction provides improved mechanical robustness and environmental protection.

Q: Does the higher current rating of the substitute part affect circuit operation?

A: No. A higher current rating indicates the substitute part can safely handle greater current levels without saturation or thermal stress. This provides additional design margin without altering electrical behavior at the original operating current of 1.225 A.

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

A: Both components share identical RoHS and REACH compliance status. The substitute part operates across a wider temperature range (-55°C to 125°C vs. -55°C to 105°C), which may be advantageous in temperature-sensitive applications.

Q: What packaging formats are available for the API Delevan 1537-06M?

A: The API Delevan 1537-06M is supplied in cut tape (CT) packaging format, suitable for automated assembly processes and manual component selection.

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