Bourns 9210-62 Equivalent & Substitute Parts

Part Overview

The Bourns 9210-62 is a 51 µH unshielded molded inductor rated for 167 mA with a maximum DC resistance of 2.85 Ohm, designed for through-hole axial mounting. This component operates across a temperature range of -55°C to 105°C and is part of the discontinued 9210 series. Due to its obsolete product status, identifying equivalent substitute parts with matching electrical and mechanical specifications is essential for design continuity and procurement planning.

Key Parameters

Parameter	Value
Inductance	51 µH
Tolerance	±5%
Current Rating	167 mA
DC Resistance (Max)	2.85 Ohm
Q @ Frequency	55 @ 2.5 MHz
Self Resonant Frequency	12.7 MHz
Operating Temperature Range	-55°C to 105°C
Mounting Type	Through Hole
Package / Case	Axial
Size / Dimension	0.156" Dia x 0.375" L (3.96mm x 9.53mm)
Shielding	Unshielded
Type	Molded

Substitute Part Grouping Explanation

Substitute parts for the Bourns 9210-62 are qualified based on the following critical parameters:

Inductance Value: 51 µH (exact match required)
Inductance Tolerance: ±5% (matching tolerance band)
DC Resistance: 2.85 Ohm Max (identical maximum specification)
Current Rating: Equal to or greater than 167 mA
Q Factor: 55 @ 2.5 MHz (matching performance characteristic)
Self Resonant Frequency: 12.7 MHz (matching frequency response)
Operating Temperature Range: -55°C to 105°C (identical thermal specification)
Mounting Type: Through Hole (mechanical compatibility)
Package / Case: Axial (form factor compatibility)
Physical Dimensions: 0.156" Dia x 0.375" L (3.96mm x 9.53mm) (board layout compatibility)
Shielding: Unshielded (electromagnetic environment match)

The API Delevan 1537-62J meets all substitution criteria with an enhanced current rating of 189 mA, providing additional design margin while maintaining electrical and mechanical compatibility.

Parameter Comparison

Parameter	Bourns 9210-62	API Delevan 1537-62J	Match Status
Manufacturer Part Number	9210-62	1537-62J	Different
Inductance	51 µH	51 µH	Match
Tolerance	±5%	±5%	Match
Current Rating (Amps)	167 mA	189 mA	Compatible (Higher)
DC Resistance (Max)	2.85 Ohm	2.85 Ohm	Match
Q @ Frequency	55 @ 2.5 MHz	55 @ 2.5 MHz	Match
Self Resonant Frequency	12.7 MHz	12.7 MHz	Match
Operating Temperature Range	-55°C to 105°C	-55°C to 105°C	Match
Mounting Type	Through Hole	Through Hole	Match
Package / Case	Axial	Axial	Match
Size / Dimension	0.156" Dia x 0.375" L (3.96mm x 9.53mm)	0.156" Dia x 0.375" L (3.96mm x 9.53mm)	Match
Shielding	Unshielded	Unshielded	Match
Type	Molded	Molded	Match
Product Status	Obsolete	Active	Substitute is Active
Packaging	Bulk	Tape & Reel (TR)	Different Format

Engineering Selection Recommendations

The API Delevan 1537-62J is a direct functional substitute for the obsolete Bourns 9210-62. All critical electrical parameters—inductance, tolerance, DC resistance, Q factor, and self-resonant frequency—are identical. The substitute maintains the same operating temperature range and physical dimensions, ensuring mechanical and thermal compatibility in existing designs.

The API Delevan 1537-62J offers an increased current rating of 189 mA compared to the original 167 mA specification, providing additional design margin without compromising any electrical characteristics. Both components are unshielded molded inductors with axial through-hole mounting, making them interchangeable at the board level.

The primary distinction is product status: the Bourns 9210-62 is obsolete, while the API Delevan 1537-62J maintains active production status, ensuring long-term availability and supply chain reliability. Packaging differs between bulk and tape & reel formats; procurement requirements should be evaluated based on assembly volume and handling specifications.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 1537-62J be used as a direct replacement for the Bourns 9210-62?

A: Yes. The 1537-62J matches all critical electrical specifications: 51 µH inductance, ±5% tolerance, 2.85 Ohm maximum DC resistance, 55 Q @ 2.5 MHz, and 12.7 MHz self-resonant frequency. Physical dimensions and mounting type are identical, enabling direct board-level substitution.

Q: What is the significance of the higher current rating on the substitute part?

A: The API Delevan 1537-62J is rated for 189 mA versus the original 167 mA. This higher rating provides additional thermal and electrical margin in the design without altering any other performance characteristics. The substitute remains fully compatible with circuits designed for the original 167 mA specification.

Q: Are there any differences in core material between these inductors?

A: Yes. The Bourns 9210-62 uses a ferrite core, while the API Delevan 1537-62J uses an iron core. Despite this material difference, both components deliver identical electrical performance at the specified test frequency of 2.5 MHz and maintain the same Q factor and self-resonant frequency.

Q: How do packaging differences affect component selection?

A: The Bourns 9210-62 is supplied in bulk packaging, while the API Delevan 1537-62J is available in tape & reel format. Tape & reel packaging is standard for automated assembly processes and offers better handling and traceability. Bulk packaging may be preferred for manual assembly or lower-volume applications. Both formats contain the same electrical component.

Q: Is the API Delevan 1537-62J suitable for the same temperature range applications?

A: Yes. Both inductors operate across the identical temperature range of -55°C to 105°C, ensuring thermal compatibility in all environmental conditions specified for the original design.

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