OY151K Equivalent & Substitute Parts

Part Overview

The OY151K is a 150 Ohm, 2W axial through-hole resistor manufactured by Ohmite with ceramic composition. This component 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 OY151K is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and procurement planning.

Substiute Parts

OY151K

OhmiteIn Stock: 1125OY151K Datasheet

Current PartRFQ

OY151KE

OhmiteIn Stock: 1780OY151KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the OY151K is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must match the following criteria:

• Resistance value: 150 Ohms
• Tolerance: ±10%
• Power rating: 2W
• Composition: Ceramic
• Package configuration: Axial
• Physical dimensions: 0.276" Dia x 0.748" L (7.00mm x 19.00mm)
• Operating temperature range: -40°C to 220°C
• Temperature coefficient: -1000/-1600 ppm/°C
• Features: Moisture Resistant, Pulse Withstanding
• Termination count: 2

The OY151KE meets all specified parameters and is classified as a direct equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

The OY151KE is the direct equivalent substitute for the obsolete OY151K. Both components are manufactured by Ohmite and share identical electrical specifications, ceramic composition, axial package configuration, and physical dimensions. The primary distinction is product status and regulatory compliance: the OY151KE is currently active in production and meets ROHS3 compliance requirements, whereas the OY151K is obsolete and RoHS non-compliant.

For new designs or system updates, the OY151KE is the appropriate selection. For legacy system maintenance where RoHS compliance is not a constraint, the OY151K remains functionally equivalent if inventory is available. Both components are suitable for applications requiring 150 Ohm, 2W ceramic resistors with moisture resistance and pulse withstanding characteristics across the -40°C to 220°C operating range.

Frequently Asked Questions (FAQ)

Q: Can the OY151KE be used as a direct replacement for the OY151K in existing assemblies?

A: Yes. The OY151KE is electrically and mechanically identical to the OY151K. Both components have the same resistance value, tolerance, power rating, physical dimensions, and operating characteristics. The axial package configuration ensures identical PCB footprint compatibility.

Q: What is the primary reason to substitute the OY151K with the OY151KE?

A: The OY151K is obsolete, making procurement difficult. The OY151KE is an active product from the same manufacturer with identical specifications and superior regulatory compliance (ROHS3).

Q: Are there any differences in performance between the OY151K and OY151KE?

A: No. Both components share identical electrical performance parameters, including resistance value, tolerance, power rating, temperature coefficient, and operating temperature range.

Q: Does the OY151KE maintain the same physical dimensions as the OY151K?

A: Yes. Both components have identical axial package dimensions of 0.276" diameter by 0.748" length (7.00mm x 19.00mm), ensuring compatibility with existing PCB layouts and mechanical assemblies.

Q: What is the significance of the ROHS3 compliance on the OY151KE?

A: ROHS3 compliance indicates the OY151KE meets current environmental and regulatory standards for electronic components. This is relevant for applications subject to RoHS directives or customer requirements for compliant components.