OY271K Equivalent & Substitute Parts

Part Overview

The OY271K is a 270 Ohms ±10% 2W 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 OY271K is classified as obsolete, making identification of active equivalent parts essential for ongoing procurement and design continuity.

Substiute Parts

OY271K

OhmiteIn Stock: 1166OY271K Datasheet

Current PartRFQ

OY271KE

OhmiteIn Stock: 7572OY271KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OY271K is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must match the following criteria:

• Resistance value: 270 Ohms
• 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 to 220°C
• Temperature coefficient: -1000/-1600 ppm/°C
• Features: Moisture Resistant, Pulse Withstanding

The OY271KE meets all these parameters and is classified as an active product, providing a direct functional and mechanical equivalent to the obsolete OY271K.

Parameter Comparison

Engineering Selection Recommendations

The OY271KE is the direct equivalent for the obsolete OY271K. Both parts are manufactured by Ohmite and share identical electrical specifications, tolerance, power rating, and physical dimensions. The primary distinction is product status and regulatory compliance: the OY271KE is an active product with ROHS3 compliance, whereas the OY271K is obsolete and RoHS non-compliant.

For new designs or component replacement in existing applications, the OY271KE provides full functional and mechanical compatibility with the OY271K. The transition to the OY271KE ensures access to current inventory and compliance with modern regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the OY271KE be used as a direct replacement for the OY271K?

A: Yes. The OY271KE is electrically and mechanically identical to the OY271K. Both parts have the same resistance value (270 Ohms), tolerance (±10%), power rating (2W), physical dimensions (0.276" Dia x 0.748" L), and operating temperature range (-40°C to 220°C). The OY271KE is the active equivalent.

Q: What is the difference between the OY271K and OY271KE?

A: The OY271K is obsolete, while the OY271KE is an active product. The OY271KE also carries ROHS3 compliance, whereas the OY271K is RoHS non-compliant. All electrical and mechanical specifications are identical.

Q: Are there any packaging differences between these parts?

A: The OY271K was supplied in standard packaging, while the OY271KE is supplied in bulk packaging. Both maintain identical axial lead configuration and physical dimensions, ensuring compatibility in PCB layouts and through-hole applications.

Q: Will the OY271KE work in circuits designed for the OY271K?

A: Yes. The OY271KE is a complete functional equivalent. It can be used in any application where the OY271K was specified, with no circuit modifications required.

Q: Why should I transition from OY271K to OY271KE?

A: The OY271K is obsolete and no longer in production. The OY271KE ensures continued availability, regulatory compliance (ROHS3), and access to current inventory. Transitioning to the OY271KE eliminates supply chain risk.