RL0809-123-R Equivalent & Substitute Parts

Part Overview

The RL0809-123-R is a 12 mH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This through-hole radial component is rated for 93 mA continuous current with a maximum DC resistance of 30 Ohm and operates across the temperature range of -40°C to 125°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

RL0809-123-R

Eaton - Electronics DivisionIn Stock: 1047RL0809-123-R Datasheet

Current PartRFQ

RLB1014-123KL

Bourns Inc.In Stock: 1016RLB1014-123KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RL0809-123-R is determined by the following critical parameters:

Primary Substitution Criteria:

• Inductance value: 12 mH (exact match required)
• Inductance tolerance: ±10% (matching tolerance specification)
• Core type: Ferrite drum core, unshielded (functional equivalence)
• Mounting configuration: Through-hole radial, vertical cylinder (mechanical compatibility)

Secondary Compatibility Parameters:

• Current rating: Substitute must equal or exceed 93 mA
• DC resistance: Substitute must not exceed 30 Ohm maximum
• Operating temperature range: Substitute must support minimum -40°C to 125°C
• Package dimensions: Physical form factor must accommodate radial through-hole mounting

The RLB1014-123KL meets these substitution criteria with enhanced electrical performance characteristics while maintaining mechanical and functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The RLB1014-123KL from Bourns Inc. is a direct functional substitute for the obsolete RL0809-123-R. Both components share identical inductance values, tolerance specifications, core materials, and mounting configurations. The substitute provides enhanced current handling capability (125 mA versus 93 mA) and maintains ferrite drum core construction with unshielded design.

Compliance Considerations:

The RLB1014-123KL carries active product status with ROHS3 compliance and REACH unaffected designation, ensuring long-term availability and regulatory alignment. The RL0809-123-R, classified as obsolete, presents procurement risk and supply discontinuation concerns.

Temperature Range Limitation:

The substitute component operates to 105°C maximum, compared to the original part's 125°C upper limit. Applications requiring sustained operation above 105°C require thermal performance verification against specific circuit requirements.

DC Resistance Variance:

The substitute exhibits 36 Ohm maximum DC resistance against the original 30 Ohm specification. This 6 Ohm differential must be evaluated within circuit power dissipation and impedance matching requirements.

Frequently Asked Questions (FAQ)

Q: Can the RLB1014-123KL directly replace the RL0809-123-R in existing designs?

A: The RLB1014-123KL provides functional equivalence for inductance, core type, and mounting configuration. Circuit validation is required to confirm compatibility with the 6 Ohm DCR increase and 20°C reduction in maximum operating temperature.

Q: What is the primary reason for substitution?

A: The RL0809-123-R is classified as obsolete. The RLB1014-123KL is an active product with confirmed long-term availability and regulatory compliance certifications.

Q: Are the physical dimensions compatible?

A: Both components use radial, vertical cylinder packaging for through-hole mounting. The RLB1014-123KL has slightly larger dimensions (0.343" diameter, 0.512" height versus 0.311" diameter, 0.354" height). PCB layout verification is necessary to confirm mechanical fit.

Q: Does the higher current rating of the substitute create any concerns?

A: The RLB1014-123KL's 125 mA rating exceeds the original 93 mA specification. This provides design margin and does not create compatibility issues when operated within the original circuit's current parameters.

Q: What compliance certifications apply to the substitute?

A: The RLB1014-123KL is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement and deployment.

Q: Is the inductance tolerance identical between parts?

A: Both components specify ±10% inductance tolerance at their respective test frequencies (10 kHz for RL0809-123-R, 79.6 kHz for RLB1014-123KL). Frequency-dependent inductance variation must be considered for applications sensitive to measurement frequency.