OX272K Equivalent & Substitute Parts

Part Overview

The OX272K is a 2.7 kOhms ±10% 1W through-hole axial resistor manufactured by Ohmite, featuring ceramic composition with moisture-resistant and pulse-withstanding characteristics. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications. The OX272K operates across a temperature range of -40°C to 220°C and is suitable for applications requiring reliable ceramic resistor performance in demanding environments.

Substiute Parts

OX272K

OhmiteIn Stock: 919OX272K Datasheet

Current PartRFQ

OX272KE

OhmiteIn Stock: 42843OX272KE Datasheet

Parametric EquivalentRFQ

OX272KE

OhmiteIn Stock: 42843OX272KE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OX272K is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part OX272KE maintains identical specifications for resistance value, tolerance, power rating, ceramic composition, axial package configuration, physical dimensions, operating temperature range, and temperature coefficient. Both parts feature identical moisture-resistant and pulse-withstanding characteristics with two terminations. The primary distinction between OX272K and OX272KE is product status and packaging format: OX272K is obsolete with individual packaging, while OX272KE is active with bulk packaging. This substitution is valid based on complete parametric alignment across all provided electrical and mechanical criteria.

Parameter Comparison

Engineering Selection Recommendations

The OX272KE serves as the direct parametric equivalent for the obsolete OX272K. Selection of OX272KE is supported by complete electrical and mechanical parameter alignment, including identical resistance, tolerance, power rating, composition, package type, dimensions, and operating temperature specifications. The OX272KE offers the additional advantage of active product status, ensuring continued availability and supply chain reliability. The OX272KE achieves RoHS compliance, whereas the OX272K is RoHS non-compliant. For applications requiring RoHS-compliant components, OX272KE is the appropriate selection. Both parts are suitable for direct substitution in circuits designed for the OX272K specification.

Frequently Asked Questions (FAQ)

Q: Can OX272KE directly replace OX272K in existing designs? A: Yes. OX272KE is a parametric equivalent with identical electrical specifications (2.7 kOhms, ±10%, 1W), composition (ceramic), package type (axial), physical dimensions (0.217" Dia x 0.650" L), operating temperature range (-40°C to 220°C), and features (moisture resistant, pulse withstanding). Direct substitution is valid.

Q: What is the primary difference between OX272K and OX272KE? A: OX272K is obsolete with individual packaging, while OX272KE is active with bulk packaging. OX272KE also achieves RoHS compliance, whereas OX272K is RoHS non-compliant.

Q: Are the physical dimensions identical between OX272K and OX272KE? A: Yes. Both parts share identical dimensions of 0.217" diameter by 0.650" length (5.50mm x 16.50mm), ensuring mechanical compatibility in PCB layouts and through-hole applications.

Q: Does packaging format affect electrical performance? A: No. Packaging format (individual versus bulk) does not affect electrical performance. Both OX272K and OX272KE deliver identical electrical characteristics and performance in circuit applications.

Q: What is the operating temperature range for these resistors? A: Both OX272K and OX272KE operate across -40°C to 220°C with a temperature coefficient of -1000/-1600 ppm/°C.