OF151JE Equivalent & Substitute Parts Reference

Part Overview

The OF151JE is a 150 Ohm ±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 designed for axial lead configuration applications. The product is classified as obsolete, making equivalent and substitute parts necessary for ongoing maintenance, repair, and legacy system support.

Substiute Parts

OF151JE

OhmiteIn Stock: 894OF151JE Datasheet

Current PartRFQ

OF151KE

OhmiteIn Stock: 1544OF151KE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the OF151JE is determined by the following critical parameters:

• Resistance Value: 150 Ohms (exact match required)
• Power Rating: 0.5W / 1/2W (exact match required)
• Package Configuration: Axial through-hole (exact match required)
• Composition: Carbon Composition (exact match required)
• Physical Dimensions: 0.150" Dia x 0.406" L (exact match required)
• Compliance: ROHS3 Compliant (maintained)

The OF151KE qualifies as a manufacturer-recommended substitute. While the tolerance specification differs (±10% versus ±5%), all other critical electrical and mechanical parameters remain identical, including resistance value, power rating, package type, physical dimensions, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The OF151KE is the manufacturer-recommended substitute for the OF151JE. Both components maintain ROHS3 compliance and identical physical dimensions, enabling direct board-level replacement. The tolerance difference (±10% versus ±5%) represents the only electrical specification variance and must be evaluated against circuit requirements.

Both parts are classified as obsolete products. Component selection should prioritize availability and lead time considerations when sourcing replacements for legacy system support.

Frequently Asked Questions (FAQ)

Q: Can OF151KE replace OF151JE in all applications? A: The OF151KE is electrically and mechanically compatible with the OF151JE. The tolerance specification difference (±10% versus ±5%) must be evaluated against circuit design requirements. Both components share identical resistance values, power ratings, physical dimensions, and package configurations.

Q: Are the physical dimensions identical between these parts? A: Yes. Both OF151JE and OF151KE measure 0.150" diameter by 0.406" length (3.80mm x 10.30mm), enabling direct board-level substitution without layout modifications.

Q: Do both parts meet current compliance standards? A: Both OF151JE and OF151KE are ROHS3 compliant with MSL rating 1 (Unlimited), meeting current environmental and reliability standards.

Q: Why are both parts classified as obsolete? A: Both the OF151JE and OF151KE are obsolete products from the Little Demon® OF series. Current component sourcing should consider alternative modern resistor families for new designs, while these parts remain available for legacy system maintenance and repair applications.

Q: What is the primary difference between these substitute parts? A: The tolerance specification differs: OF151JE provides ±5% tolerance, while OF151KE provides ±10% tolerance. All other parameters, including resistance value (150 Ohms), power rating (0.5W), composition (carbon composition), and physical dimensions, are identical.