Bourns 9210-90 Fixed Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 9210-90 is a 200 µH unshielded molded inductor rated for 106 mA with a maximum DC resistance of 7.1 Ohm, designed for through-hole axial mounting. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity. The part operates across a temperature range of -55°C to 105°C and is suitable for applications requiring fixed inductance values in the 200 µH range with moderate current handling capabilities.

Key Parameters

Parameter	Value
Inductance	200 µH
Tolerance	±5%
Current Rating	106 mA
DC Resistance (Max)	7.1 Ohm
Shielding	Unshielded
Mounting Type	Through Hole
Package / Case	Axial
Operating Temperature	-55°C ~ 105°C
Q @ Frequency	65 @ 790 kHz
Self Resonant Frequency	6.5 MHz
Size / Dimension	0.156" Dia x 0.375" L (3.96mm x 9.53mm)

Substitute Part Grouping Explanation

Substitution of the Bourns 9210-90 is determined by strict equivalence across the following critical parameters:

Inductance Value: 200 µH (exact match required)
Inductance Tolerance: ±5% (matching tolerance specification)
DC Resistance: 7.1 Ohm maximum (electrical performance requirement)
Current Rating: Minimum 106 mA (must meet or exceed original specification)
Shielding Configuration: Unshielded (electromagnetic environment compatibility)
Mounting Type: Through Hole (PCB assembly compatibility)
Package / Case: Axial (physical form factor and board layout compatibility)
Operating Temperature Range: -55°C ~ 105°C (thermal environment compatibility)
Physical Dimensions: 0.156" Dia x 0.375" L (mechanical fit and spacing requirements)

The API Delevan 1537-90J meets all substitution criteria with equivalent electrical specifications and identical physical dimensions, with the exception of an increased current rating of 120 mA, which provides additional design margin.

Parameter Comparison

Parameter	Bourns 9210-90	API Delevan 1537-90J	Match Status
Inductance	200 µH	200 µH	Equivalent
Tolerance	±5%	±5%	Equivalent
Current Rating (Amps)	106 mA	120 mA	Substitute Exceeds
DC Resistance (Max)	7.1 Ohm	7.1 Ohm	Equivalent
Shielding	Unshielded	Unshielded	Equivalent
Q @ Frequency	65 @ 790 kHz	65 @ 790 kHz	Equivalent
Self Resonant Frequency	6.5 MHz	6.5 MHz	Equivalent
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	Axial	Axial	Equivalent
Size / Dimension	0.156" Dia x 0.375" L	0.156" Dia x 0.375" L	Equivalent

Engineering Selection Recommendations

The Bourns 9210-90 is classified as obsolete, necessitating transition to an active product for new designs and ongoing production support. The API Delevan 1537-90J is an active product that satisfies all electrical and mechanical requirements for direct substitution. The 1537-90J provides a 14 mA increase in current rating (120 mA versus 106 mA), which represents improved design margin without introducing incompatibility. Both components share identical inductance, tolerance, DC resistance, frequency characteristics, operating temperature range, and physical dimensions. The 1537-90J is available in Cut Tape packaging, suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 1537-90J be used as a direct replacement for the Bourns 9210-90?

A: Yes. The 1537-90J meets all critical electrical and mechanical specifications. Inductance, tolerance, DC resistance, frequency response, operating temperature, and physical dimensions are identical. The higher current rating of the 1537-90J (120 mA versus 106 mA) provides additional design margin and does not introduce incompatibility.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by inductance value (200 µH), inductance tolerance (±5%), DC resistance (7.1 Ohm maximum), current rating (minimum 106 mA), shielding configuration (unshielded), mounting type (through hole), package form (axial), operating temperature range (-55°C to 105°C), and physical dimensions (0.156" Dia x 0.375" L).

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

A: Yes. The Bourns 9210-90 uses a ferrite core, while the API Delevan 1537-90J uses an iron core. Both materials deliver the specified electrical performance across the operating frequency and temperature ranges.

Q: Does packaging format affect electrical performance?

A: No. The Cut Tape packaging of the 1537-90J is a supply format that does not affect electrical characteristics or performance. It is compatible with automated assembly equipment.

Q: Are both components RoHS compliant?

A: Neither component is RoHS compliant. Both are classified as RoHS non-compliant and are REACH unaffected.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message