OX221K Equivalent & Substitute Parts

Part Overview

The OX221K is a 220 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 OX221K is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

OX221K

OhmiteIn Stock: 1090OX221K Datasheet

Current PartRFQ

OX221KE

OhmiteIn Stock: 3704OX221KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OX221K is determined by strict equivalence across the following critical parameters:

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

The OX221KE qualifies as a direct substitute based on complete alignment with all specified electrical and mechanical parameters. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The OX221KE serves as the direct equivalent for the obsolete OX221K. Both components share identical electrical specifications and physical dimensions, ensuring drop-in compatibility in circuit applications. The OX221KE is currently in active production status, providing assured supply availability for new designs and production continuity.

The OX221KE carries ROHS3 compliance certification, whereas the OX221K is RoHS non-compliant. For applications subject to RoHS regulatory requirements, the OX221KE is the appropriate selection. Both components maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can the OX221KE be used as a direct replacement for the OX221K?

A: Yes. The OX221KE is electrically and mechanically equivalent to the OX221K. Both components feature identical resistance values (220 Ohms ±10%), power ratings (1W), axial package configuration, physical dimensions (0.217" Dia x 0.650" L), operating temperature range (-40°C ~ 220°C), and ceramic composition with moisture-resistant and pulse-withstanding characteristics.

Q: What is the primary difference between these two part numbers?

A: The OX221K is classified as obsolete, while the OX221KE is in active production. Additionally, the OX221KE meets ROHS3 compliance requirements, whereas the OX221K is RoHS non-compliant. All functional and physical parameters remain identical.

Q: Are there any packaging differences between OX221K and OX221KE?

A: The OX221KE is supplied in bulk packaging. Both components are axial through-hole resistors with identical physical dimensions and termination configuration.

Q: Will the OX221KE function identically in existing circuit designs using the OX221K?

A: Yes. The OX221KE maintains all electrical characteristics, temperature coefficients, and operating ranges specified for the OX221K, ensuring functional equivalence in circuit applications.

Q: Is the OX221KE suitable for applications requiring RoHS compliance?

A: Yes. The OX221KE carries ROHS3 compliance certification, making it appropriate for applications subject to RoHS regulatory requirements.