OY331K Equivalent & Substitute Parts

Part Overview

The OY331K is a 330 Ohms ±10% 2W 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 OY331K is classified as obsolete, making identification of suitable substitutes essential for ongoing component procurement and system maintenance.

Substiute Parts

OY331K

OhmiteIn Stock: 816OY331K Datasheet

Current PartRFQ

OY331KE

OhmiteIn Stock: 6191OY331KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OY331K 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: 2W
• Composition: Ceramic
• Package configuration: Axial with 2 terminations
• Physical dimensions: 0.276" Dia x 0.748" L (7.00mm x 19.00mm)
• Operating temperature range: -40°C ~ 220°C
• Temperature coefficient: -1000 / -1600 ppm/°C
• Features: Moisture Resistant, Pulse Withstanding

The OY331KE meets all these parameters and is classified as an active product, providing continuity for applications currently using the obsolete OY331K.

Parameter Comparison

Engineering Selection Recommendations

The OY331KE is the direct substitute for the obsolete OY331K. Both components are manufactured by Ohmite and share identical electrical specifications and physical dimensions. The primary distinction is product status and regulatory compliance: the OY331K is obsolete, while the OY331KE is an active product with ROHS3 compliance. For new designs and ongoing procurement, the OY331KE is the appropriate selection. The OY331KE maintains full electrical and mechanical compatibility with applications originally specified for the OY331K.

Frequently Asked Questions (FAQ)

Q: Can the OY331KE be used as a direct replacement for the OY331K?

A: Yes. The OY331KE is electrically and mechanically identical to the OY331K across all specified parameters, including resistance, tolerance, power rating, package type, and operating temperature range.

Q: What is the difference between OY331K and OY331KE?

A: The OY331K is classified as obsolete, while the OY331KE is an active product. The OY331KE also carries ROHS3 compliance, whereas the OY331K is RoHS non-compliant. All electrical and mechanical specifications are identical.

Q: Are there any physical dimension differences between these parts?

A: No. Both the OY331K and OY331KE have identical physical dimensions of 0.276" Dia x 0.748" L (7.00mm x 19.00mm) and use the same axial package configuration.

Q: Does the OY331KE meet the same temperature specifications as the OY331K?

A: Yes. Both parts operate across the same temperature range of -40°C to 220°C with identical temperature coefficients of -1000 / -1600 ppm/°C.

Q: Is the OY331KE available in the same packaging options?

A: The OY331KE is supplied in bulk packaging, whereas the OY331K was supplied with standard packaging. Both are axial through-hole resistors with identical electrical and mechanical specifications.