Bourns 9230-48 Fixed Inductor: Equivalent & Substitute Parts

Part Overview

The Bourns 9230-48 is a 15 µH unshielded molded inductor rated for 205 mA with a maximum DC resistance of 2.8 Ohm, designed for through-hole axial mounting. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and procurement planning. The part operates across a temperature range of -55°C to 125°C and is RoHS non-compliant.

Substiute Parts

9230-48

Bourns Inc.In Stock: 7599230-48 Datasheet

Current PartRFQ

1025-48K

API Delevan Inc.In Stock: 22401025-48K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 9230-48 is determined by strict equivalence across the following critical parameters:

• Inductance Value: Must be 15 µH with ±10% tolerance
• DC Resistance: Maximum 2.8 Ohm
• Current Rating: Must support minimum 205 mA continuous operation
• Q Factor: 45 @ 2.5 MHz
• Self Resonant Frequency: 35 MHz
• Mounting Configuration: Through-hole axial package only
• Physical Dimensions: 0.095" Dia x 0.250" L (2.41mm x 6.35mm)
• Shielding: Unshielded construction

The API Delevan 1025-48K meets the core electrical specifications (inductance, tolerance, DC resistance, Q factor, and self-resonant frequency) and shares identical physical dimensions and axial through-hole mounting. However, the current rating differential and operating temperature range variance must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 1025-48K is an active product with current manufacturing support, addressing the obsolescence status of the Bourns 9230-48. Both components share identical electrical specifications for inductance, tolerance, DC resistance, Q factor, and self-resonant frequency. Both maintain RoHS non-compliant status and identical physical dimensions for direct board-level substitution.

The primary differentiation factors are:

• Current Rating: The 1025-48K is rated for 157 mA versus the original 205 mA specification. Applications operating at or above 157 mA but below 205 mA require circuit-level current analysis to confirm compatibility.
• Operating Temperature: The 1025-48K operates to 105°C maximum versus 125°C for the original part. Applications requiring operation above 105°C are not suitable for this substitute.
• Core Material: The 1025-48K uses iron core construction versus ferrite in the original design. This material difference does not affect the specified electrical parameters but may influence EMI characteristics in specific circuit topologies.
• Compliance Certifications: The 1025-48K carries military specification compliance (MIL-PRF-M15305, MS75084), providing additional qualification documentation for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 1025-48K directly replace the Bourns 9230-48 in all applications?

A: Direct substitution is valid only when circuit current requirements do not exceed 157 mA and operating temperature does not exceed 105°C. Applications operating within these constraints benefit from the active product status and military specification compliance of the 1025-48K.

Q: What is the significance of the current rating difference between 205 mA and 157 mA?

A: The current rating defines the maximum continuous current the inductor can carry without exceeding design thermal limits. Applications drawing 157 mA to 205 mA from the original part require thermal and circuit analysis to confirm the 1025-48K operates within acceptable margins.

Q: Why does the operating temperature range differ between these parts?

A: The Bourns 9230-48 operates to 125°C while the API Delevan 1025-48K operates to 105°C. This 20°C difference reflects design and material choices. Applications requiring operation above 105°C cannot use the 1025-48K as a substitute.

Q: Are the physical dimensions identical for PCB mounting?

A: Yes. Both components share identical axial through-hole dimensions of 0.095" Dia x 0.250" L (2.41mm x 6.35mm), enabling direct mechanical substitution without board redesign.

Q: What does the military specification designation on the 1025-48K indicate?

A: The MIL-PRF-M15305 and MS75084 designations indicate the 1025-48K meets military procurement specifications for inductors. This provides additional qualification documentation and traceability for applications requiring compliance verification.

Q: How do the ferrite and iron core materials affect circuit performance?

A: Both materials achieve the specified electrical parameters (15 µH inductance, 2.8 Ohm DCR, 45 Q @ 2.5 MHz). Core material selection influences EMI characteristics and frequency response behavior outside the specified test conditions. Circuit-specific EMI analysis may be necessary for noise-sensitive applications.