OX270K Equivalent & Substitute Parts

Part Overview

The OX270K is a 27 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 the -40°C to 220°C operating temperature range. The OX270K is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

OX270K

OhmiteIn Stock: 919OX270K Datasheet

Current PartRFQ

OX270KE

OhmiteIn Stock: 1298OX270KE Datasheet

DirectRFQ

OX270K

OhmiteIn Stock: 919OX270K Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the OX270K is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute component must match the following criteria:

• Resistance value: 27 Ohms
• Tolerance: ±10%
• Power rating: 1W
• Composition: Ceramic
• Package configuration: Axial with 2 terminations
• Physical dimensions: 0.217" Dia x 0.650" L (5.50mm x 16.50mm)
• Operating temperature range: -40°C ~ 220°C
• Temperature coefficient: -1000 / -1600 ppm/°C
• Features: Moisture Resistant, Pulse Withstanding

The OX270KE meets all these parameters and is classified as a direct manufacturer substitute with active product status.

Parameter Comparison

Engineering Selection Recommendations

The OX270KE is the direct substitute for the obsolete OX270K. Both components are manufactured by Ohmite and share identical electrical specifications and physical dimensions. The primary distinction is product status: the OX270K is obsolete while the OX270KE maintains active production status.

For new designs or production continuity, the OX270KE is the appropriate selection. The OX270KE offers improved compliance posture with ROHS3 certification, whereas the OX270K is RoHS non-compliant. Both components maintain equivalent performance across all specified electrical parameters, operating temperature ranges, and mechanical configurations.

Frequently Asked Questions (FAQ)

Q: Can the OX270KE be used as a direct replacement for the OX270K in existing designs?

A: Yes. The OX270KE is electrically and mechanically identical to the OX270K. Both components feature 27 Ohms resistance, ±10% tolerance, 1W power rating, ceramic composition, and axial package configuration with identical physical dimensions. The OX270KE is suitable for direct substitution in all applications where the OX270K was originally specified.

Q: What is the primary reason to transition from OX270K to OX270KE?

A: The OX270K is classified as obsolete, while the OX270KE maintains active production status. Transitioning to the OX270KE ensures long-term component availability and supply chain continuity. Additionally, the OX270KE offers ROHS3 compliance, providing improved regulatory alignment for new production.

Q: Are there any differences in packaging between these components?

A: The OX270K is supplied with unspecified packaging, while the OX270KE is available in bulk packaging. Both components are identical in physical dimensions and electrical performance. Packaging differences do not affect functional compatibility or circuit performance.

Q: Do these components have identical temperature performance characteristics?

A: Yes. Both the OX270K and OX270KE operate across the -40°C to 220°C temperature range with identical temperature coefficients of -1000 / -1600 ppm/°C. Thermal performance is equivalent across both components.

Q: Are moisture-resistant properties maintained in the substitute component?

A: Yes. The OX270KE retains all moisture-resistant and pulse-withstanding characteristics of the OX270K. Both components are specified with identical feature sets for environmental protection.