OY473K Equivalent & Substitute Parts

Part Overview

The OY473K is a 47 kOhms ±10% 2W 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 OY473K is classified as obsolete, making identification of suitable substitutes essential for ongoing component procurement and system maintenance.

Substiute Parts

OY473K

OhmiteIn Stock: 1166OY473K Datasheet

Current PartRFQ

OY473KE

OhmiteIn Stock: 600197OY473KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OY473K is determined by strict equivalence across the following critical parameters:

• Resistance value: 47 kOhms
• 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 OY473KE meets all specified parameters and serves as a direct substitute for the obsolete OY473K.

Parameter Comparison

Engineering Selection Recommendations

The OY473KE is the appropriate substitute for the obsolete OY473K. Both components are manufactured by Ohmite and maintain identical electrical and mechanical specifications across all critical parameters. The OY473KE offers the additional advantage of active product status, ensuring continued availability and supply chain reliability. The OY473KE also provides ROHS3 compliance, addressing regulatory requirements for new designs and procurement initiatives where RoHS compliance is mandated.

Frequently Asked Questions (FAQ)

Q: Can the OY473KE be used as a direct replacement for the OY473K?

A: Yes. The OY473KE is electrically and mechanically equivalent to the OY473K. Both components share identical resistance values, tolerance, power rating, physical dimensions, operating temperature range, and ceramic composition with moisture resistance and pulse withstanding features.

Q: What is the primary difference between the OY473K and OY473KE?

A: The OY473K is classified as obsolete, while the OY473KE maintains active product status. Additionally, the OY473KE is ROHS3 compliant, whereas the OY473K is RoHS non-compliant.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both the OY473K and OY473KE have identical axial package dimensions of 0.276" Dia x 0.748" L (7.00mm x 19.00mm), ensuring compatibility with existing PCB layouts and mechanical assemblies.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by equivalence in resistance value (47 kOhms), tolerance (±10%), power rating (2W), ceramic composition, axial package configuration, physical dimensions, operating temperature range (-40°C ~ 220°C), temperature coefficient (-1000 / -1600 ppm/°C), and features (moisture resistant, pulse withstanding).

Q: Is the OY473KE suitable for applications requiring RoHS compliance?

A: Yes. The OY473KE is ROHS3 compliant and is appropriate for applications and procurement requirements mandating RoHS compliance.