RL0809-103-R Equivalent & Substitute Parts

Part Overview

The RL0809-103-R is a 10 mH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This through-hole component is rated for 99 mA continuous current with a maximum DC resistance of 26.4 Ohm and operates across the temperature range of -40°C to 125°C. The part is classified as obsolete, making identification of suitable equivalent components essential for ongoing system support, design updates, and procurement continuity.

Substiute Parts

RL0809-103-R

Eaton - Electronics DivisionIn Stock: 793RL0809-103-R Datasheet

Current PartRFQ

AIUR-10-103K

Abracon LLCIn Stock: 931AIUR-10-103K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RL0809-103-R is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

• Inductance value: 10 mH with ±10% tolerance
• Core type: Ferrite drum core, unshielded
• Mounting configuration: Through-hole radial vertical cylinder
• Current rating: Minimum 99 mA continuous
• DC resistance: Not exceeding 26.4 Ohm maximum

Secondary Compatibility Factors:

• Operating temperature range must encompass or exceed the application requirements
• Package dimensions must be mechanically compatible with PCB layout
• Moisture sensitivity level (MSL 1) ensures unlimited shelf life compatibility

The AIUR-10-103K from Abracon LLC meets these substitution criteria with equivalent inductance, core material, mounting type, and package configuration. Both parts share ferrite drum core construction, unshielded design, and radial through-hole mounting in vertical cylinder form factor.

Parameter Comparison

Engineering Selection Recommendations

The AIUR-10-103K from Abracon LLC is a direct functional substitute for the obsolete RL0809-103-R. Both components share identical inductance specifications, ferrite core construction, and through-hole radial mounting configuration. The Abracon part offers improved electrical performance with lower DC resistance (25 Ohm vs. 26.4 Ohm maximum) and higher current rating (100 mA vs. 99 mA), providing design margin in both parameters.

Status Consideration: The RL0809-103-R is classified as obsolete, while the AIUR-10-103K maintains active product status with 902 pieces in current inventory. This availability difference supports transition to the Abracon equivalent for new designs and ongoing production support.

Temperature Range Limitation: The AIUR-10-103K operates to 85°C maximum, compared to 125°C for the original part. Applications requiring sustained operation above 85°C require thermal analysis or alternative component selection.

Compliance: Both parts carry MSL 1 rating (unlimited moisture sensitivity), EAR99 export classification, and HTSUS code 8504.50.4000. The AIUR-10-103K includes RoHS3 compliance and REACH unaffected status, meeting modern regulatory requirements.

Mechanical Compatibility: Dimensional differences are minimal. The AIUR-10-103K diameter is 0.004" larger (8.00 mm vs. 7.90 mm) and height is 0.039" shorter (8.00 mm vs. 9.00 mm), presenting no PCB layout conflicts for standard through-hole applications.

Frequently Asked Questions (FAQ)

Q: Can the AIUR-10-103K replace the RL0809-103-R in all applications?

A: The AIUR-10-103K is electrically and mechanically compatible for applications operating at or below 85°C. Applications requiring the full -40°C to 125°C temperature range of the original part require verification that sustained operation does not exceed 85°C, or alternative components must be evaluated.

Q: What are the key differences between these two inductors?

A: Both parts are 10 mH ferrite drum core wirewound inductors with identical inductance tolerance (±10%), unshielded design, and through-hole radial mounting. The AIUR-10-103K provides lower DC resistance (25 Ohm vs. 26.4 Ohm), higher current rating (100 mA vs. 99 mA), and slightly different physical dimensions. The primary limitation is the reduced maximum operating temperature (85°C vs. 125°C).

Q: Are there any PCB layout considerations when switching from RL0809-103-R to AIUR-10-103K?

A: The AIUR-10-103K has a slightly larger diameter (0.315" vs. 0.311") and shorter height (0.315" vs. 0.354"). These minimal differences are compatible with standard through-hole PCB designs. Verify pad spacing and clearance in your specific layout, but no redesign is typically required.

Q: What is the saturation current difference, and does it matter?

A: The RL0809-103-R specifies saturation current (Isat) at 77 mA. The AIUR-10-103K does not provide this specification in the available data. Both parts are rated for continuous current operation at 99-100 mA, which exceeds the saturation specification of the original part. Confirm saturation performance requirements with the Abracon datasheet if saturation current is critical to your application.

Q: Why is the RL0809-103-R obsolete, and what does this mean for my design?

A: Obsolete status indicates the RL0809-103-R is no longer manufactured by Eaton. Existing inventory may be available through authorized distributors, but long-term supply is not guaranteed. Transition to the active AIUR-10-103K ensures design continuity and production support for current and future builds.

Q: Are both parts RoHS compliant?

A: The AIUR-10-103K is explicitly RoHS3 compliant. RoHS compliance status for the RL0809-103-R is not specified in the provided data. For applications requiring RoHS certification, the AIUR-10-103K provides documented compliance.