OF222JE Equivalent & Substitute Parts

Part Overview

The OF222JE is a 2.2 kOhms ±5% 0.5W through-hole resistor in axial configuration, manufactured by Ohmite as part of the Little Demon® OF series. This carbon composition resistor features pulse withstanding capability and is designed for applications requiring reliable performance in harsh environments. The product is classified as obsolete, making equivalent and substitute parts necessary for ongoing maintenance, repair, and legacy system support.

Substiute Parts

OF222JE

OhmiteIn Stock: 4800OF222JE Datasheet

Current PartRFQ

OF222KE

OhmiteIn Stock: 1096OF222KE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the OF222JE is determined by the following critical parameters:

• Resistance Value: Must be 2.2 kOhms
• Power Rating: Must be 0.5W (1/2W) minimum
• Package Configuration: Must be axial through-hole
• Physical Dimensions: Must match 0.150" Dia x 0.406" L (3.80mm x 10.30mm)
• Composition: Carbon composition construction
• Pulse Withstanding Capability: Required for equivalent performance
• Compliance: ROHS3 compliance maintained

The OF222KE qualifies as a manufacturer-recommended substitute. While tolerance differs (±10% versus ±5%), all other critical electrical and mechanical parameters remain identical, including resistance value, power rating, package type, physical dimensions, and composition. Both parts share the same series designation and feature set.

Parameter Comparison

Engineering Selection Recommendations

The OF222KE serves as the manufacturer-recommended substitute for the OF222JE. Both components are obsolete products from the same Little Demon® OF series, manufactured by Ohmite with identical physical dimensions, power ratings, and composition specifications. The primary difference is tolerance specification: the OF222JE provides ±5% tolerance while the OF222KE provides ±10% tolerance.

Selection between these parts depends on circuit tolerance requirements. Applications requiring ±5% tolerance precision must use the OF222JE. Applications where ±10% tolerance is acceptable can utilize the OF222KE. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating, ensuring regulatory and environmental compatibility in legacy system applications.

Frequently Asked Questions (FAQ)

Q: Can OF222KE replace OF222JE in all applications?

A: The OF222KE can replace the OF222JE in applications where ±10% tolerance is acceptable. If the circuit design requires ±5% tolerance, the OF222JE must be used. All other electrical and mechanical specifications are identical.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both OF222JE and OF222KE share identical axial package dimensions of 0.150" Dia x 0.406" L (3.80mm x 10.30mm), ensuring direct mechanical compatibility in PCB layouts and through-hole applications.

Q: Do both parts meet current compliance standards?

A: Both OF222JE and OF222KE are ROHS3 compliant with MSL rating 1 (unlimited), meeting current environmental and regulatory requirements for legacy system repairs and replacements.

Q: Why are both parts classified as obsolete?

A: Both the OF222JE and OF222KE are obsolete products from the Little Demon® OF series. For new designs, modern thin-film or metal-film resistor alternatives should be evaluated. For legacy system maintenance, these parts remain available through authorized distributors.

Q: What is the significance of pulse withstanding capability?

A: Pulse withstanding is a feature of carbon composition resistors that allows them to tolerate transient overvoltage conditions. Both OF222JE and OF222KE retain this capability, making them suitable for applications subject to electrical transients or surge conditions.