OX330K Equivalent & Substitute Parts

Part Overview

The OX330K is a 33 Ohms ±10% 1W through-hole resistor with axial leads, manufactured by Ohmite. This ceramic composition resistor features moisture resistance and pulse withstanding capabilities, designed for applications requiring reliable performance across a wide operating temperature range of -40°C to 220°C. The OX330K is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

OX330K

OhmiteIn Stock: 823OX330K Datasheet

Current PartRFQ

OX330KE

OhmiteIn Stock: 2286OX330KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OX330K is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute component must match the following specifications without deviation:

• Resistance value: 33 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 OX330KE meets all these criteria and is classified as a direct equivalent substitute for the obsolete OX330K.

Parameter Comparison

Engineering Selection Recommendations

The OX330KE is the direct equivalent substitute for the obsolete OX330K. Both components are manufactured by Ohmite within the OX series and share identical electrical specifications, physical dimensions, and performance characteristics. The primary distinction is product status: the OX330K is obsolete while the OX330KE remains in active production.

For new designs or production continuity, the OX330KE is the appropriate selection. The OX330KE provides the additional advantage of ROHS3 compliance, whereas the OX330K is RoHS non-compliant. Both components maintain REACH Unaffected status and carry the same ECCN and HTSUS classifications.

Frequently Asked Questions (FAQ)

Q: Can the OX330KE be used as a direct replacement for the OX330K in existing designs?

A: Yes. The OX330KE is electrically and mechanically identical to the OX330K. All critical parameters—resistance, tolerance, power rating, package type, dimensions, and operating temperature range—are equivalent. Direct substitution is appropriate for both repair and production applications.

Q: What is the difference between the OX330K and OX330KE?

A: The OX330K is obsolete, while the OX330KE is in active production. The OX330KE also carries ROHS3 compliance certification, whereas the OX330K is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there any packaging differences between these parts?

A: The OX330K is supplied with standard packaging, while the OX330KE is supplied in bulk packaging. Both components use the same axial package configuration with identical physical dimensions of 0.217" Dia x 0.650" L (5.50mm x 16.50mm).

Q: What parameters must match for a valid substitute?

A: For the OX330K, valid substitutes must match: 33 Ohms resistance, ±10% tolerance, 1W power rating, ceramic composition, axial package type, 0.217" Dia x 0.650" L dimensions, -40°C to 220°C operating temperature range, and moisture resistant/pulse withstanding features.

Q: Is the OX330KE suitable for high-temperature applications?

A: Yes. The OX330KE operates across the full temperature range of -40°C to 220°C, identical to the OX330K, making it suitable for applications requiring extended temperature performance.