Bourns 9210-72 Equivalent & Substitute Parts

Part Overview

The Bourns 9210-72 is a 82 µH unshielded molded inductor rated for 143 mA with a maximum DC resistance of 3.9Ohm, designed for through-hole axial mounting. This component operates across a temperature range of -55°C to 105°C and is characterized as obsolete. Due to its obsolete status, identifying functionally equivalent substitute parts is essential for ongoing design support, production continuity, and component sourcing.

Substiute Parts

9210-72

Bourns Inc.In Stock: 10899210-72 Datasheet

Current PartRFQ

1537-72J

API Delevan Inc.In Stock: 10141537-72J Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the Bourns 9210-72 is determined by strict alignment of the following electrical and mechanical parameters:

• Inductance Value: 82 µH (exact match required)
• Inductance Tolerance: ±5% (matching tolerance specification)
• DC Resistance: 3.9Ohm Max (maximum allowable DCR)
• Current Rating: Minimum 143 mA (substitute must meet or exceed this requirement)
• Q Factor @ 2.5MHz: 50 (performance characteristic at test frequency)
• Self Resonant Frequency: 10.3MHz (frequency stability requirement)
• Operating Temperature Range: -55°C ~ 105°C (thermal operating envelope)
• Mounting Type: Through Hole (circuit board integration requirement)
• Package / Case: Axial (physical form factor)
• Physical Dimensions: 0.156" Dia x 0.375" L (3.96mm x 9.53mm) (board layout compatibility)

The API Delevan 1537-72J meets all substitution criteria with an enhanced current rating of 162 mA, providing improved headroom over the original 143 mA specification.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 1537-72J is a direct functional equivalent to the Bourns 9210-72. Both components share identical electrical specifications for inductance, tolerance, DC resistance, Q factor, and self-resonant frequency. The substitute part offers a higher current rating of 162 mA compared to the original 143 mA, providing additional design margin without compromising any electrical or thermal characteristics.

Both parts maintain identical physical dimensions and axial through-hole mounting compatibility, ensuring seamless integration into existing PCB layouts. The operating temperature range remains consistent at -55°C to 105°C.

Both the original and substitute parts carry identical RoHS non-compliance and REACH unaffected certifications. The API Delevan 1537-72J is currently in active production status, whereas the Bourns 9210-72 is obsolete, making the substitute the preferred choice for new designs and ongoing production support.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 1537-72J be used as a direct replacement for the Bourns 9210-72?

A: Yes. Both inductors share identical inductance values (82 µH), tolerance (±5%), DC resistance (3.9Ohm Max), Q factor (50 @ 2.5MHz), self-resonant frequency (10.3MHz), operating temperature range (-55°C ~ 105°C), and physical dimensions (0.156" Dia x 0.375" L). The substitute offers an enhanced current rating of 162 mA versus 143 mA, providing additional operational headroom.

Q: Are there any physical compatibility concerns with the substitute part?

A: No. Both components are axial through-hole inductors with identical physical dimensions of 0.156" diameter by 0.375" length (3.96mm x 9.53mm). PCB layouts and mechanical mounting requirements remain unchanged.

Q: What is the difference in core material between these parts?

A: The Bourns 9210-72 uses a ferrite core, while the API Delevan 1537-72J uses an iron core. Despite this material difference, both achieve identical electrical performance specifications at the test frequency of 2.5MHz.

Q: Does the substitute part have different packaging options?

A: The API Delevan 1537-72J is supplied in Tape & Reel (TR) packaging, whereas the Bourns 9210-72 packaging specification was not provided. For component procurement, confirm packaging requirements with your supplier.

Q: Are compliance certifications identical between the two parts?

A: Both parts share identical RoHS non-compliance and REACH unaffected certifications. No compliance differences exist between the original and substitute components.