OF561JE Equivalent & Substitute Parts

Part Overview

The OF561JE is a 560 Ohms ±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. The product is classified as obsolete, making identification of suitable substitute components essential for ongoing maintenance, repair, and legacy system support.

Substiute Parts

OF561JE

OhmiteIn Stock: 855OF561JE Datasheet

Current PartRFQ

OF561KE

OhmiteIn Stock: 2027OF561KE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the OF561JE is determined by the following critical parameters that must remain constant or within acceptable engineering tolerances:

• Resistance value: 560 Ohms (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Package configuration: Axial through-hole (exact match required)
• Physical dimensions: 0.150" Dia x 0.406" L (exact match required)
• Composition: Carbon Composition (exact match required)
• Number of terminations: 2 (exact match required)

The tolerance specification (±5% vs. ±10%) represents the primary allowable variation between the main part and its substitute. A substitute with ±10% tolerance remains functionally equivalent when the circuit design accommodates this wider tolerance band. Both parts maintain identical resistance value, power dissipation capability, physical form factor, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The OF561KE serves as the manufacturer-recommended substitute for the OF561JE. Both components are obsolete products from the Ohmite Little Demon® OF series, maintaining identical physical dimensions, power ratings, and compliance certifications. The substitution is valid based on the following factors:

• Both parts are ROHS3 compliant
• Both maintain MSL rating of 1 (Unlimited)
• Both are carbon composition axial resistors with identical form factors
• Both are manufactured by Ohmite within the same product series
• The tolerance difference (±5% to ±10%) represents the only electrical parameter variation

Selection of OF561KE over OF561JE is appropriate when the circuit design specifications permit the wider ±10% tolerance band. Circuits requiring strict ±5% tolerance control should evaluate alternative current-production resistor families with equivalent specifications.

Frequently Asked Questions (FAQ)

Q: Can OF561KE directly replace OF561JE in all applications?

A: Direct replacement is valid when circuit design tolerances accommodate ±10% resistance variation. The OF561KE maintains identical power rating, physical dimensions, and package configuration. Applications requiring ±5% tolerance control require evaluation of alternative components.

Q: Are there physical compatibility concerns when substituting OF561KE for OF561JE?

A: No. Both components share identical physical dimensions (0.150" Dia x 0.406" L), axial package configuration, and two-termination design. PCB footprints and mechanical mounting are fully compatible.

Q: What is the significance of the tolerance difference between these parts?

A: The OF561JE specifies ±5% tolerance, while OF561KE specifies ±10% tolerance. This means the OF561KE resistance value may deviate up to ±10% from the nominal 560 Ohm specification. Circuit designs must accommodate this wider tolerance band for successful substitution.

Q: Are both parts RoHS compliant?

A: Yes. Both OF561JE and OF561KE are ROHS3 compliant with MSL rating of 1 (Unlimited), meeting current environmental and regulatory requirements.

Q: Why are both parts classified as obsolete?

A: Both components are legacy products from the Ohmite Little Demon® OF series. Obsolete status indicates these parts are no longer in active production. Current-production alternatives should be evaluated for new designs.