Bourns 9310-06-RC Equivalent & Substitute Parts

Part Overview

The Bourns 9310-06-RC 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 classified as obsolete, making equivalent substitutes necessary for new designs and production continuity. The part operates across a temperature range of -55°C to 105°C and is ROHS3 compliant.

Key Parameters

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

Substitute Part Grouping Explanation

Substitute parts for the Bourns 9310-06-RC are qualified based on the following electrical and mechanical parameters:

Inductance Value: 470 nH (exact match required)
Inductance Tolerance: ±20% (matching tolerance band)
Current Rating: Minimum 1.225 A (equal or higher acceptable)
DC Resistance: 120 mOhm maximum (equal or lower acceptable)
Shielding Configuration: Unshielded (must match)
Q Factor @ 25 MHz: 45 (matching performance characteristic)
Self Resonant Frequency: 310 MHz (matching frequency response)
Operating Temperature Range: -55°C minimum, 105°C minimum upper limit
Package Type: Axial Through Hole (mechanical compatibility)
Physical Dimensions: 0.156" Dia x 0.375" L (form factor compatibility)

The API Delevan 1537R-06M and 1537-06M meet these substitution criteria. Both parts feature identical inductance, tolerance, DC resistance, Q factor, and self-resonant frequency specifications. The primary differences are core material composition (phenolic vs. ferrite), current rating (1.37 A vs. 1.225 A), and operating temperature upper limit (125°C vs. 105°C).

Parameter Comparison

Parameter	Bourns 9310-06-RC	API Delevan 1537R-06M	API Delevan 1537-06M
Inductance	470 nH	470 nH	470 nH
Tolerance	±20%	±20%	±20%
Current Rating (A)	1.225	1.37	1.37
DC Resistance (Max)	120 mOhm	120 mOhm	120 mOhm
Shielding	Unshielded	Unshielded	Unshielded
Q @ 25 MHz	45	45	45
Self Resonant Frequency	310 MHz	310 MHz	310 MHz
Operating Temperature Range	-55°C to 105°C	-55°C to 125°C	-55°C to 125°C
Package Type	Axial Through Hole	Axial Through Hole	Axial Through Hole
Physical Dimensions	0.156" Dia x 0.375" L	0.156" Dia x 0.375" L	0.156" Dia x 0.375" L
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Non-Compliant
Product Status	Obsolete	Active	Active
Packaging Format	Bulk	Tape & Reel (TR)	Cut Tape (CT)

Engineering Selection Recommendations

API Delevan 1537R-06M is the primary substitute for the Bourns 9310-06-RC. This part maintains ROHS3 compliance, matches all critical electrical parameters, and is available in active production status with Tape & Reel packaging suitable for automated assembly. The higher current rating (1.37 A vs. 1.225 A) and extended operating temperature range (-55°C to 125°C) provide additional design margin.

API Delevan 1537-06M is a secondary substitute available in Cut Tape packaging. This part is electrically equivalent but carries RoHS non-compliance status, which may restrict use in applications subject to RoHS regulations. Selection of this variant should be limited to applications where RoHS compliance is not a requirement.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 1537R-06M directly replace the Bourns 9310-06-RC in existing designs?

A: Yes. Both parts share identical inductance (470 nH), tolerance (±20%), DC resistance (120 mOhm maximum), Q factor (45 @ 25 MHz), and self-resonant frequency (310 MHz). Physical dimensions and axial through-hole package type are identical, enabling direct PCB compatibility.

Q: What is the significance of the higher current rating on the API Delevan parts?

A: The API Delevan 1537R-06M and 1537-06M are rated for 1.37 A compared to the Bourns part's 1.225 A rating. This higher rating does not affect substitution compatibility; it indicates the substitute can handle greater current without saturation, providing additional operational margin in the circuit.

Q: How do the core materials differ between the Bourns and API Delevan parts?

A: The Bourns 9310-06-RC uses a ferrite core, while the API Delevan 1537R-06M and 1537-06M use phenolic cores. Despite this material difference, both achieve identical electrical performance at the specified test frequency (25 MHz) and operating conditions.

Q: What is the difference between the 1537R-06M and 1537-06M?

A: The primary differences are packaging format and RoHS compliance. The 1537R-06M is supplied in Tape & Reel format and is ROHS3 compliant. The 1537-06M is supplied in Cut Tape format and is RoHS non-compliant. Electrical specifications are identical.

Q: Are there temperature range considerations when substituting?

A: The API Delevan substitutes operate to 125°C maximum, exceeding the Bourns part's 105°C limit. For applications operating near or above 105°C, the extended range of the substitutes provides additional thermal margin. For applications below 105°C, both parts are functionally equivalent.

Q: Which substitute should be selected for new production designs?

A: The API Delevan 1537R-06M is recommended for new designs. It maintains ROHS3 compliance, is in active production status, and is available in Tape & Reel packaging optimized for high-volume manufacturing.

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