15M561K Equivalent & Substitute Parts

Part Overview

The 15M561K is a 5.6 µH unshielded molded inductor manufactured by Gowanda Electronics, designed for RF applications requiring axial through-hole mounting. This component operates across a temperature range of -55°C to 105°C with a maximum DC resistance of 320mOhm and supports a current rating of 495 mA. The part maintains active product status with 658 units currently in stock.

Equivalent and substitute parts are identified when they maintain identical or compatible electrical and mechanical specifications, enabling direct replacement in circuit designs without performance degradation.

Substiute Parts

15M561K

Gowanda ElectronicsIn Stock: 70415M561K Datasheet

Current PartRFQ

1537-30K

DelevanIn Stock: 18661537-30K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 15M561K is determined by the following critical parameters:

• Inductance value: 5.6 µH with ±10% tolerance
• DC resistance: 320mOhm maximum
• Current rating: minimum 495 mA
• Shielding configuration: unshielded
• Core material: iron-based construction
• Operating temperature range: -55°C to 105°C
• Mounting configuration: through-hole axial package
• Physical dimensions: 0.156" diameter × 0.375" length

The substitute part 1537-30K meets all specified electrical and mechanical parameters, maintaining compatibility with the original design requirements.

Parameter Comparison

Engineering Selection Recommendations

The 1537-30K from Delevan qualifies as a direct substitute for the 15M561K based on electrical and mechanical parameter alignment. The substitute part provides a higher current rating of 565 mA compared to the original 495 mA specification, offering additional design margin without compromising other electrical characteristics.

The 15M561K maintains active product status with RoHS status listed as not applicable. The 1537-30K is RoHS non-compliant and carries military series designation (MIL-PRF-M15305, MS14046). Selection between these parts should account for compliance requirements specific to the application and end-use environment.

Both parts share identical inductance, tolerance, DC resistance, Q factor, self-resonant frequency, operating temperature range, and physical dimensions, ensuring mechanical and electrical interchangeability within the specified parameter constraints.

Frequently Asked Questions (FAQ)

Q: Can the 1537-30K replace the 15M561K in existing designs?

A: Yes. Both inductors maintain identical inductance (5.6 µH), tolerance (±10%), DC resistance (320mOhm max), Q factor (45 @ 7.9MHz), self-resonant frequency (60MHz), operating temperature range (-55°C to 105°C), and physical dimensions (0.156" Dia × 0.375" L). The 1537-30K provides higher current rating (565 mA vs. 495 mA), making it suitable for direct substitution.

Q: What are the key differences between these parts?

A: The primary differences are manufacturer (Gowanda vs. Delevan), current rating (495 mA vs. 565 mA), core material designation (iron powder vs. iron), RoHS compliance status (not applicable vs. non-compliant), and military series classification (1537-30K only). All critical RF and thermal parameters remain identical.

Q: Are the physical packages identical?

A: Yes. Both parts use axial through-hole mounting with identical dimensions of 0.156" diameter × 0.375" length (3.96mm × 9.53mm), ensuring compatibility with existing PCB layouts and component placement.

Q: What compliance considerations apply to substitution?

A: The 15M561K has RoHS status listed as not applicable, while the 1537-30K is RoHS non-compliant. Applications requiring RoHS compliance should retain the original 15M561K. The 1537-30K carries military series designation (MIL-PRF-M15305, MS14046), making it suitable for military and aerospace applications where such certification is required.

Q: Does the higher current rating of the 1537-30K affect circuit performance?

A: No. A higher current rating indicates greater saturation margin and does not alter the inductor's electrical performance at the design operating point. The identical DC resistance, inductance, and Q factor ensure equivalent circuit behavior.