OX331K Equivalent & Substitute Parts

Part Overview

The OX331K is a 330 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 OX331K carries an obsolete product status, making identification of suitable substitutes essential for ongoing design support and component procurement.

Substiute Parts

OX331K

OhmiteIn Stock: 1160OX331K Datasheet

Current PartRFQ

OX331KE

OhmiteIn Stock: 1698OX331KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OX331K is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must match the following criteria:

• Resistance value: 330 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 OX331KE meets all substitution criteria as a direct equivalent from the same manufacturer series.

Parameter Comparison

Engineering Selection Recommendations

The OX331KE serves as the direct substitute for the obsolete OX331K. Both components are manufactured by Ohmite within the OX series and maintain identical electrical specifications and physical dimensions. The primary distinction lies in product status and regulatory compliance. The OX331K is obsolete, whereas the OX331KE maintains active production status, ensuring long-term component availability and supply chain continuity.

The OX331KE achieves ROHS3 compliance, addressing modern regulatory requirements that the original OX331K does not meet. For applications requiring RoHS compliance or long-term component sourcing, the OX331KE is the appropriate selection. Both components are REACH Unaffected and classified under ECCN EAR99.

Frequently Asked Questions (FAQ)

Q: Can the OX331KE be used as a direct replacement for the OX331K?

A: Yes. The OX331KE is electrically and mechanically equivalent to the OX331K. Both components share identical resistance values, tolerance, power rating, physical dimensions, operating temperature range, and ceramic composition with moisture-resistant and pulse-withstanding characteristics.

Q: What is the primary reason to substitute the OX331K?

A: The OX331K is obsolete. The OX331KE is the active equivalent from the same manufacturer series, ensuring continued component availability and supply chain support.

Q: Are there packaging differences between OX331K and OX331KE?

A: Both components use axial packaging with identical physical dimensions of 0.217" Dia x 0.650" L (5.50mm x 16.50mm). The OX331KE is supplied in bulk packaging, while the OX331K packaging specification is not detailed in available data.

Q: Does the OX331KE meet modern regulatory standards?

A: The OX331KE is ROHS3 compliant and REACH Unaffected. The original OX331K is RoHS non-compliant. For applications subject to RoHS requirements, the OX331KE is the appropriate selection.

Q: Are the temperature coefficients identical?

A: Yes. Both the OX331K and OX331KE maintain a temperature coefficient of -1000 / -1600 ppm/°C and operate across the same temperature range of -40°C to 220°C.