OF473JE Equivalent & Substitute Parts Reference

Part Overview

The OF473JE is a 47 kOhm ±5% 0.5W through-hole axial resistor manufactured by Ohmite as part of the Little Demon® OF series. This carbon composition resistor features pulse withstanding capability and is classified as obsolete. Due to its obsolete status and limited availability relative to substitute options, identifying equivalent parts with compatible electrical and mechanical specifications is necessary for circuit maintenance and redesign applications.

Substiute Parts

OF473JE

OhmiteIn Stock: 953OF473JE Datasheet

Current PartRFQ

OF473KE

OhmiteIn Stock: 1489OF473KE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OF473JE is determined by the following critical parameters:

• Resistance Value: Must be 47 kOhms
• Power Rating: Must be 0.5W (1/2W) minimum
• Package Type: Must be Axial to maintain PCB layout compatibility
• Physical Dimensions: Must match 0.150" Dia x 0.406" L (3.80mm x 10.30mm)
• Composition: Carbon Composition type
• Compliance: ROHS3 Compliant status

The OF473KE qualifies as a direct substitute based on these parameters. While tolerance differs (±10% versus ±5%), the resistance value, power rating, package type, physical dimensions, composition, and compliance specifications are identical. The tolerance variance represents a relaxation of the original specification rather than a functional incompatibility, provided circuit design tolerances accommodate ±10% resistance variation.

Parameter Comparison

Engineering Selection Recommendations

The OF473KE serves as the manufacturer-recommended substitute for the OF473JE. Both parts maintain identical electrical ratings (47 kOhms, 0.5W), mechanical compatibility (axial package, matching dimensions), and regulatory compliance (ROHS3 Compliant, MSL 1). The tolerance specification difference (±10% versus ±5%) is the sole parameter variance. Selection between these parts depends on circuit tolerance requirements: applications requiring ±5% tolerance must use the OF473JE, while applications tolerating ±10% variation may use the OF473KE. Given the obsolete status of both parts, inventory availability should be evaluated against application timelines.

Frequently Asked Questions (FAQ)

Q: Can the OF473KE replace the OF473JE in any application?

A: The OF473KE can replace the OF473JE in applications where circuit design tolerates ±10% resistance variation. Applications requiring ±5% tolerance must use the OF473JE. All other electrical and mechanical specifications are identical.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both the OF473JE and OF473KE measure 0.150" diameter by 0.406" length (3.80mm x 10.30mm) and use identical axial packaging, ensuring direct PCB layout compatibility.

Q: Do both parts meet current RoHS compliance standards?

A: Yes. Both the OF473JE and OF473KE are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited), meeting current regulatory requirements.

Q: What is the significance of the tolerance difference?

A: The OF473JE specifies ±5% tolerance, while the OF473KE specifies ±10% tolerance. This means the OF473JE maintains tighter resistance accuracy. Circuit designs must verify whether the relaxed tolerance of the OF473KE is acceptable for their specific application requirements.

Q: Are both parts still in production?

A: No. Both the OF473JE and OF473KE are classified as obsolete. Component selection should account for available inventory and long-term availability considerations.