OX561K Equivalent & Substitute Parts

Part Overview

The OX561K is a 560 Ohms ±10% 1W through-hole resistor with axial leads, manufactured by Ohmite. This ceramic composition resistor features moisture-resistant and pulse-withstanding characteristics, designed for applications requiring reliable performance across a wide operating temperature range of -40°C to 220°C. The OX561K is currently classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and component procurement.

Substiute Parts

OX561K

OhmiteIn Stock: 1082OX561K Datasheet

Current PartRFQ

OX561KE

OhmiteIn Stock: 975OX561KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OX561K is determined by strict equivalence across the following critical parameters:

• Resistance Value: 560 Ohms (exact match required)
• Tolerance: ±10% (exact match required)
• Power Rating: 1W (exact match required)
• Composition: Ceramic (exact match required)
• Package Type: Axial (exact match required)
• Physical Dimensions: 0.217" Dia x 0.650" L / 5.50mm x 16.50mm (exact match required)
• Operating Temperature Range: -40°C ~ 220°C (exact match required)
• Temperature Coefficient: -1000 / -1600 ppm/°C (exact match required)
• Features: Moisture Resistant, Pulse Withstanding (exact match required)

The OX561KE meets all substitution criteria as a direct equivalent to the OX561K, with identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The OX561KE is the direct functional equivalent to the OX561K. Both components share identical electrical specifications, mechanical dimensions, and performance characteristics across all operating parameters. The primary distinction between these parts is product status and regulatory compliance.

The OX561K is classified as obsolete, whereas the OX561KE maintains active product status. Additionally, the OX561KE achieves ROHS3 compliance, whereas the OX561K is RoHS non-compliant. For new designs or ongoing production requiring regulatory compliance with modern environmental standards, the OX561KE is the appropriate selection. For legacy system maintenance where RoHS compliance is not a requirement, the OX561K remains functionally interchangeable where inventory permits.

Frequently Asked Questions (FAQ)

Q: Can the OX561KE be used as a direct replacement for the OX561K in existing designs?

A: Yes. The OX561KE is electrically and mechanically identical to the OX561K. Both components have the same resistance value (560 Ohms), tolerance (±10%), power rating (1W), physical dimensions (0.217" Dia x 0.650" L), operating temperature range (-40°C ~ 220°C), and ceramic composition with moisture-resistant and pulse-withstanding features. Direct substitution is supported without circuit modification.

Q: What is the primary reason to transition from OX561K to OX561KE?

A: The OX561K is obsolete, while the OX561KE maintains active product status. Additionally, the OX561KE is ROHS3 compliant, whereas the OX561K is RoHS non-compliant. For applications requiring regulatory compliance or long-term component availability, the OX561KE is the recommended selection.

Q: Are there any packaging differences between OX561K and OX561KE?

A: Both components use identical axial package types and physical dimensions. The OX561KE is supplied in bulk packaging, while the OX561K packaging specification is not defined in available documentation. This distinction does not affect functional compatibility or circuit performance.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by exact equivalence across resistance value (560 Ohms), tolerance (±10%), power rating (1W), ceramic composition, axial package type, physical dimensions (0.217" Dia x 0.650" L), operating temperature range (-40°C ~ 220°C), temperature coefficient (-1000 / -1600 ppm/°C), and moisture-resistant, pulse-withstanding features. All parameters must match exactly for direct substitution.