10M103K Equivalent & Substitute Parts

Part Overview

The 10M103K is a molded unshielded RF coil manufactured by Gowanda Electronics, classified as a wirewound inductor with ferrite core construction. This component is designed for RF and general-purpose filtering applications requiring 100 µH inductance at controlled saturation and impedance characteristics. The part maintains active product status with 719 units in current inventory. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and application-specific requirements where electrical and mechanical parameters align with the original specification.

Substiute Parts

10M103K

Gowanda ElectronicsIn Stock: 74310M103K Datasheet

Current PartRFQ

1025-68K

API Delevan Inc.In Stock: 106081025-68K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 10M103K is determined by strict equivalence across the following critical parameters:

• Inductance Value: 100 µH with ±10% tolerance
• Current Rating: 84 mA minimum
• DC Resistance: 8 Ohm maximum
• Core Material: Ferrite
• Shielding Configuration: Unshielded
• Frequency Characteristics: Q factor of 50 @ 2.5 MHz; self-resonant frequency of 13 MHz
• Operating Temperature: -55°C to 105°C
• Mounting and Package: Through-hole axial configuration with 0.095" diameter × 0.250" length

The substitute part 1025-68K (API Delevan Inc.) meets all electrical and mechanical parameters specified for the 10M103K. Both components share identical inductance, current rating, DC resistance, core material, shielding type, frequency response, temperature range, and physical dimensions. The 1025-68K is qualified to military specification MIL-PRF-M15305 and carries MS75085 designation, providing additional certification for applications requiring military-grade component traceability.

Parameter Comparison

Engineering Selection Recommendations

Both the 10M103K and 1025-68K are active products suitable for direct substitution based on electrical and mechanical equivalence. The 10M103K (Gowanda Electronics) carries RoHS applicability status of "Not applicable," indicating the component predates or falls outside RoHS scope. The 1025-68K (API Delevan Inc.) is explicitly RoHS non-compliant, reflecting its military specification heritage under MIL-PRF-M15305.

Selection between these parts should be based on:

• Supply availability: The 10M103K has 719 units in stock; the 1025-68K has 10,516 units available.
• Regulatory compliance requirements: Applications requiring RoHS compliance should confirm applicability with the design authority, as both parts carry non-compliant or inapplicable designations.
• Military qualification: The 1025-68K carries military specification certification (MIL-PRF-M15305, MS75085) for applications requiring military-grade component traceability and qualification.
• Packaging format: The 10M103K is supplied in standard packaging; the 1025-68K is supplied in Tape & Reel (TR) format, which may affect procurement and assembly processes.

Both components are REACH Unaffected and classified as EAR99 for export control purposes, with identical HTSUS commodity codes.

Frequently Asked Questions (FAQ)

Q: Can the 1025-68K directly replace the 10M103K in existing designs?

A: Yes. Both components are electrically and mechanically equivalent across all specified parameters: 100 µH inductance, 84 mA current rating, 8 Ohm maximum DC resistance, ferrite core, unshielded configuration, identical frequency response, operating temperature range, and axial through-hole package dimensions. No circuit redesign or PCB modification is required.

Q: What is the difference in packaging between these two parts?

A: The 10M103K is supplied in standard packaging format. The 1025-68K is supplied in Tape & Reel (TR) format, which is optimized for automated assembly processes. TR packaging may require different handling and feeder compatibility on pick-and-place equipment.

Q: Are there compliance or certification differences between these parts?

A: The 1025-68K carries military specification qualification (MIL-PRF-M15305, MS75085), providing additional traceability and quality assurance for military or aerospace applications. Both parts are REACH Unaffected and EAR99 classified. Neither part carries RoHS compliance certification; the 10M103K status is "Not applicable" and the 1025-68K is explicitly "RoHS non-compliant."

Q: Which part should be selected for new designs?

A: Selection depends on application requirements. For military or aerospace applications requiring specification compliance, the 1025-68K is preferred. For commercial applications with high-volume automated assembly, the 1025-68K's TR packaging may be advantageous. For applications with no specific military or compliance requirements, either part is suitable based on availability and lead time.

Q: Are the physical dimensions identical?

A: Yes. Both components have identical axial dimensions of 0.095" diameter × 0.250" length (2.41 mm × 6.35 mm), ensuring identical PCB footprint and mounting compatibility.

Q: What is the inventory status for each part?

A: The 10M103K has 719 units in current stock. The 1025-68K has 10,516 units in current stock, providing significantly higher availability for high-volume procurement.