OX473K Equivalent & Substitute Parts

Part Overview

The OX473K is a 47 kOhms ±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 OX473K is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement.

Substiute Parts

OX473K

OhmiteIn Stock: 706OX473K Datasheet

Current PartRFQ

OX473KE

OhmiteIn Stock: 40905OX473KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OX473K is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute component must match the following specifications:

• Resistance value: 47 kOhms
• 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 OX473KE meets all these criteria and is identified as a direct substitute for the obsolete OX473K.

Parameter Comparison

Engineering Selection Recommendations

The OX473KE is the direct equivalent substitute for the obsolete OX473K. Both components are manufactured by Ohmite within the OX series and maintain identical electrical and mechanical specifications across all critical parameters including resistance, tolerance, power rating, package dimensions, and operating temperature range.

The primary distinction between the two components is product status and regulatory compliance. The OX473K is obsolete and RoHS non-compliant, while the OX473KE is an active product with ROHS3 compliance. For new designs and ongoing procurement, the OX473KE is the appropriate selection. The OX473KE provides equivalent functional performance with the added benefit of current manufacturing status and enhanced regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the OX473KE be used as a direct replacement for the OX473K in existing designs?

A: Yes. The OX473KE is electrically and mechanically identical to the OX473K across all specified parameters. Both components share the same resistance value, tolerance, power rating, package type, dimensions, and operating temperature range. Direct substitution is supported without circuit modification.

Q: What is the significance of the product status difference between OX473K and OX473KE?

A: The OX473K is classified as obsolete, indicating it is no longer in active production. The OX473KE is an active product currently manufactured by Ohmite. For procurement and long-term design support, the OX473KE is the appropriate choice.

Q: How does RoHS compliance affect component selection?

A: The OX473K is RoHS non-compliant, while the OX473KE is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements mandating RoHS compliance, the OX473KE is the required selection. Both components are otherwise functionally equivalent.

Q: Are the physical dimensions identical between OX473K and OX473KE?

A: Yes. Both components share identical physical dimensions of 0.217" Dia x 0.650" L (5.50mm x 16.50mm) in axial package configuration. PCB layout and mechanical fit are identical.

Q: What packaging options are available for the OX473KE?

A: The OX473KE is supplied in bulk packaging. The OX473K was supplied with standard packaging. Both maintain the same component specifications regardless of packaging format.