Bourns 9210-82 Fixed Inductor: Equivalent & Substitute Parts

Part Overview

The Bourns 9210-82 is a 130 µH unshielded molded inductor rated for 121 mA maximum current with 5.45Ohm DC resistance. This through-hole axial component operates across -55°C to 105°C and is designed for general-purpose filtering and energy storage applications in electronic circuits.

The 9210-82 carries an obsolete product status. Identifying compatible substitute parts is essential for ongoing design support, procurement continuity, and system maintenance where this component remains in active use.

Key Parameters

Parameter	Value
Inductance	130 µH
Inductance Tolerance	±5%
Current Rating	121 mA
DC Resistance (DCR)	5.45Ohm Max
Q Factor @ 790 kHz	65
Self Resonant Frequency	8.5 MHz
Operating Temperature Range	-55°C to 105°C
Mounting Type	Through Hole
Package / Case	Axial
Physical Dimensions	0.156" Dia x 0.375" L (3.96mm x 9.53mm)
Core Material	Ferrite
Shielding	Unshielded

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 9210-82 is determined by strict equivalence across the following critical parameters:

Inductance value: 130 µH (±5% tolerance maintained)
DC resistance: 5.45Ohm maximum
Current rating: minimum 121 mA
Operating temperature range: -55°C to 105°C minimum
Mounting type: Through hole axial configuration
Physical dimensions: 0.156" diameter x 0.375" length
Q factor and self-resonant frequency characteristics

The API Delevan 1537-82J meets all substitution criteria. While the core material differs (iron vs. ferrite), both materials deliver the specified electrical performance within the defined parameter envelope. The substitute part exceeds the current rating requirement at 137 mA, providing additional design margin.

Parameter Comparison

Parameter	Bourns 9210-82	API Delevan 1537-82J	Match Status
Inductance	130 µH	130 µH	Equivalent
Inductance Tolerance	±5%	±5%	Equivalent
Current Rating (Amps)	121 mA	137 mA	Substitute Exceeds
DC Resistance (DCR)	5.45Ohm Max	5.45Ohm Max	Equivalent
Q @ 790 kHz	65	65	Equivalent
Self Resonant Frequency	8.5 MHz	8.5 MHz	Equivalent
Operating Temperature Range	-55°C to 105°C	-55°C to 105°C	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	Axial	Axial	Equivalent
Physical Dimensions	0.156" Dia x 0.375" L	0.156" Dia x 0.375" L	Equivalent
Core Material	Ferrite	Iron	Different Material
Shielding	Unshielded	Unshielded	Equivalent
Product Status	Obsolete	Active	Substitute Active

Engineering Selection Recommendations

The API Delevan 1537-82J is a direct functional substitute for the Bourns 9210-82 based on electrical and mechanical parameter equivalence. The substitute part carries active product status, ensuring ongoing availability and supply chain continuity.

Both parts are RoHS non-compliant and REACH unaffected. Selection between these components should be based on procurement availability, lead time requirements, and packaging format preference. The 9210-82 is supplied in standard packaging, while the 1537-82J is available in Tape & Reel format, which may influence high-volume manufacturing workflows.

The higher current rating of the 1537-82J (137 mA vs. 121 mA) provides additional thermal and electrical margin without affecting circuit performance in applications designed for the original 9210-82 specification.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 1537-82J replace the Bourns 9210-82 in existing designs?

A: Yes. The 1537-82J meets all electrical and mechanical specifications of the 9210-82. Inductance, DC resistance, Q factor, self-resonant frequency, operating temperature range, and physical dimensions are equivalent. The substitute part's higher current rating provides additional design margin.

Q: Why do the core materials differ between these parts?

A: The Bourns 9210-82 uses ferrite core material, while the API Delevan 1537-82J uses iron core material. Both materials deliver the specified inductance, Q factor, and frequency characteristics within the defined parameter envelope. Core material selection does not affect substitution eligibility when electrical performance is equivalent.

Q: What is the impact of the different packaging formats?

A: The 9210-82 uses standard packaging, while the 1537-82J is supplied in Tape & Reel format. Both are through-hole axial components with identical physical dimensions. Packaging format affects manufacturing automation and handling but does not impact electrical or mechanical compatibility.

Q: Is the higher current rating of the 1537-82J a concern?

A: No. A higher current rating indicates the substitute part can safely handle greater current without saturation or thermal stress. This provides additional design margin and does not create compatibility issues in circuits designed for the original 121 mA specification.

Q: Are there compliance or certification differences?

A: Both parts are RoHS non-compliant and REACH unaffected. No compliance or certification advantages exist between these components. Selection should be based on procurement availability and supply chain requirements.

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