AY220K Equivalent & Substitute Parts Reference

Part Overview

The AY220K is a 22 Ohm, 4.5W radial ceramic resistor manufactured by Ohmite as part of the PulsEater® A series. This component is designed for through-hole applications requiring flame retardant coating, moisture resistance, and pulse withstanding capability. The AY220K is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

AY220K

OhmiteIn Stock: 1069AY220K Datasheet

Current PartRFQ

AY220KE

OhmiteIn Stock: 1480AY220KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AY220K is determined by strict equivalence across the following critical parameters:

• Resistance value: 22 Ohms
• Tolerance: ±10%
• Power dissipation capability: 4.5W minimum
• Package configuration: Radial through-hole
• Composition: Ceramic
• Feature set: Flame retardant coating, moisture resistance, non-inductive, pulse withstanding capability
• Operating temperature range: -55°C to 150°C minimum

The AY220KE qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility within the radial package format.

Parameter Comparison

Engineering Selection Recommendations

The AY220KE is the direct equivalent substitute for the obsolete AY220K. Both components share identical electrical and mechanical specifications within the PulsEater® A series. The primary distinction is product status: the AY220K is obsolete while the AY220KE remains in active production.

For new designs and ongoing system support, the AY220KE is the appropriate selection. The AY220KE additionally provides RoHS compliance, which may be required for applications subject to regulatory restrictions on hazardous substances. Both components maintain equivalent performance across all specified electrical parameters and operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the AY220KE directly replace the AY220K in existing assemblies?

A: Yes. The AY220KE is electrically and mechanically equivalent to the AY220K. Both components have identical resistance values, tolerance, power ratings, and radial package dimensions. Direct substitution is supported without circuit modification.

Q: What is the significance of the product status difference?

A: The AY220K is classified as obsolete, indicating it is no longer manufactured. The AY220KE is in active production status, ensuring continued availability for procurement and supply chain continuity.

Q: Are there dimensional differences between these components?

A: Both components share the same radial package configuration with identical maximum seated height of 1.102" (28.00mm) and equivalent body dimensions. No mechanical redesign is required for substitution.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS compliance status reflects manufacturing process and material composition restrictions but does not alter the electrical characteristics or performance of the component. The AY220KE maintains all specified electrical parameters identical to the AY220K.

Q: What packaging options are available for the AY220KE?

A: The AY220KE is supplied in bulk packaging, whereas the AY220K packaging specification was not defined in the original documentation. Verify packaging requirements for your procurement process.