RL0809-222-R Equivalent & Substitute Parts

Part Overview

The RL0809-222-R is a 2.2 mH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This through-hole radial component is rated for 207 mA continuous current with a maximum DC resistance of 6.06 Ohm and operates across the temperature range of -40°C to 125°C. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

RL0809-222-R

Eaton - Electronics DivisionIn Stock: 1242RL0809-222-R Datasheet

Current PartRFQ

RLB0913-222K

Bourns Inc.In Stock: 1965RLB0913-222K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RL0809-222-R is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 2.2 mH with ±10% tolerance
• Core type: Ferrite drum core, unshielded
• Mounting configuration: Through-hole radial, vertical cylinder orientation
• Current rating: Minimum 207 mA continuous current capability
• DC resistance: Within acceptable operating limits for the application

Secondary Compatibility Factors:

• Operating temperature range must encompass or exceed -40°C to 125°C
• Package footprint and height must accommodate existing PCB layouts
• Saturation current characteristics must support circuit performance

The RLB0913-222K from Bourns Inc. meets these substitution criteria as an active product with matching inductance, core type, and mounting configuration.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: RLB0913-222K

The RLB0913-222K from Bourns Inc. is the qualified substitute for the obsolete RL0809-222-R. This selection is based on:

• Electrical Equivalence: Identical inductance value (2.2 mH) and tolerance (±10%), matching core material (ferrite), and identical shielding configuration (unshielded)
• Current Capability: The substitute is rated for 245 mA, exceeding the original 207 mA requirement, providing design margin
• DC Resistance: The substitute DCR of 6.8 Ohm represents a 12% increase from the original 6.06 Ohm maximum, remaining within acceptable operating parameters for most applications
• Temperature Performance: The substitute operating range of -55°C to 125°C exceeds the original -40°C to 125°C specification
• Product Status: The RLB0913-222K is an active product with current manufacturing support and availability, addressing the obsolescence of the original component
• Compliance: The substitute is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements

Physical Footprint Consideration: The substitute exhibits increased physical dimensions (0.335" diameter vs. 0.311", and 0.492" height vs. 0.354"). PCB layout verification is required to confirm accommodation of these dimensional changes within existing designs.

Frequently Asked Questions (FAQ)

Q: Can the RLB0913-222K directly replace the RL0809-222-R without circuit modification?

A: The RLB0913-222K provides electrical equivalence in inductance, tolerance, core type, and shielding configuration. However, the increased physical dimensions (diameter and height) require verification that the PCB layout and component clearances accommodate the substitute. No circuit modifications are necessary if physical space permits installation.

Q: What is the significance of the DC resistance difference between the two parts?

A: The RL0809-222-R specifies 6.06 Ohm maximum DCR, while the RLB0913-222K is rated at 6.8 Ohm. This 12% increase results in proportionally higher resistive losses in the inductor. For applications sensitive to power dissipation or voltage drop across the inductor, this difference must be evaluated against circuit performance requirements.

Q: Why is the substitute rated for higher current (245 mA vs. 207 mA)?

A: The RLB0913-222K's higher current rating provides additional design margin and thermal headroom. This does not require circuit modification; the substitute can safely operate at the original 207 mA specification with reduced thermal stress.

Q: Are there any compliance or certification differences between the original and substitute?

A: The RLB0913-222K is RoHS3 compliant and REACH unaffected. The original RL0809-222-R specifications do not include these compliance statements. Both components carry EAR99 ECCN classification. The substitute meets current regulatory requirements for new designs and production.

Q: What is the impact of the different saturation current specifications?

A: The RL0809-222-R specifies saturation current (Isat) of 164 mA, while the RLB0913-222K specifies 80 mA. Saturation current represents the point at which inductor performance degrades due to core saturation. The substitute's lower saturation current indicates it will saturate at a lower current level. Applications operating near or above 80 mA must evaluate whether this characteristic affects circuit performance.

Q: Can the substitute be used in existing inventory or must all components be replaced?

A: The RLB0913-222K is suitable for new production and design revisions. Existing assemblies using the RL0809-222-R can continue operation with the original component. Substitution decisions should be based on component availability, production scheduling, and the physical space constraints identified above.