Ohmite 91J22R Equivalent & Substitute Parts

Part Overview

The Ohmite 91J22R is a 22 Ohm, 1.5W through-hole axial wirewound resistor with ±5% tolerance and flame retardant coating. This component is classified as Active product status and is designed for applications requiring reliable power dissipation in compact axial form factors. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product series, enabling seamless integration into existing designs while accommodating supply chain variations or compliance requirements.

Substiute Parts

91J22R

OhmiteIn Stock: 100891J22R Datasheet

Current PartRFQ

91J22RE

OhmiteIn Stock: 78091J22RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Ohmite 91J22RE qualifies as a parametric equivalent to the 91J22R based on the following criteria:

• Identical resistance value: 22 Ohms
• Matching tolerance: ±5%
• Equivalent power rating: 1.5W
• Same composition: Wirewound
• Identical package configuration: Axial
• Matching temperature coefficient: ±30ppm/°C
• Identical physical dimensions: 0.142" Dia x 0.453" L (3.60mm x 11.50mm)
• Same series designation: 90
• Identical termination count: 2

Both parts maintain the same electrical performance envelope and mechanical compatibility, differing only in packaging format (Bulk vs. standard) and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the 91J22R and 91J22RE maintain identical electrical and mechanical specifications within the Ohmite 90 series. Selection between these parts should be based on the following factors:

• RoHS Compliance: The 91J22RE is ROHS3 compliant, while the 91J22R is RoHS non-compliant. Applications subject to RoHS regulations require the 91J22RE.
• Packaging Requirements: The 91J22RE is supplied in Bulk packaging, whereas the 91J22R uses standard packaging. Procurement volume and handling procedures may influence selection.
• Moisture Sensitivity: The 91J22RE specifies MSL 1 (Unlimited), providing broader storage and handling flexibility compared to the 91J22R (Not Applicable designation).
• Inventory Availability: Current stock levels are 939 Pcs for 91J22R and 738 Pcs for 91J22RE, which may impact lead time considerations.

Both parts are Active status components suitable for direct substitution in circuit designs requiring 22 Ohm, 1.5W axial wirewound resistors.

Frequently Asked Questions (FAQ)

Q: Can the 91J22RE replace the 91J22R in all applications?

A: Yes, from an electrical and mechanical standpoint. The 91J22RE is electrically and dimensionally identical. However, RoHS compliance requirements must be evaluated for your specific application. If RoHS3 compliance is mandated, the 91J22RE is the required choice.

Q: What is the difference between the two part numbers?

A: The primary differences are packaging format (Bulk vs. standard), RoHS compliance status (ROHS3 Compliant vs. non-compliant), and moisture sensitivity level designation. All electrical parameters and physical dimensions are identical.

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts share identical temperature coefficient (±30ppm/°C), power rating (1.5W), and resistance value (22 Ohms ±5%). Thermal performance and electrical behavior are equivalent.

Q: What does MSL 1 (Unlimited) mean for the 91J22RE?

A: MSL 1 indicates the component has unlimited shelf life under standard storage conditions. This provides greater flexibility in inventory management and storage compared to components with restricted moisture sensitivity levels.

Q: Can I use these resistors in high-frequency applications?

A: These are wirewound resistors with ±30ppm/°C temperature coefficient. Suitability for high-frequency applications depends on your specific frequency range and circuit requirements. Consult application-specific design guidelines.

Q: Are both parts suitable for safety-critical applications?

A: Both parts feature flame retardant coating and safety designation. However, application-specific safety certifications and compliance requirements must be verified against your end-use requirements.