OX271KE Equivalent & Substitute Parts

Part Overview

The OX271KE is a 270 Ohms ±10% 1W through-hole resistor in axial configuration manufactured by Ohmite. This ceramic composition resistor features moisture resistance and pulse withstanding capability, designed for applications requiring reliable performance across a wide operating temperature range from -40°C to 220°C. The part is currently active in production with ROHS3 compliance and is available in bulk packaging with 933 pieces in stock.

Identifying equivalent and substitute parts is necessary when the OX271KE becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when enhanced performance specifications are needed for specific application requirements.

Substiute Parts

OX271KE

OhmiteIn Stock: 1028OX271KE Datasheet

Current PartRFQ

OC1K271E-TR

OhmiteIn Stock: 1941OC1K271E-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OX271KE is permissible with parts meeting the following criteria:

• Resistance value: 270 Ohms
• Tolerance: ±10%
• Composition: Ceramic
• Package configuration: Axial through-hole
• Power rating: Equal to or greater than 1W
• Operating temperature range: Must encompass or exceed -40°C ~ 220°C
• Compliance: ROHS3 Compliant

The OC1K271E-TR qualifies as a direct substitute based on these parameters. While it offers enhanced specifications including higher power rating (1.2W), improved temperature coefficient performance, and extended operating temperature range (-55°C ~ 230°C), it maintains electrical and mechanical compatibility with the OX271KE.

Parameter Comparison

Engineering Selection Recommendations

The OC1K271E-TR is the manufacturer-recommended substitute for the OX271KE. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment across applications.

Selection between these parts should be based on:

• Packaging format requirements: OX271KE is supplied in bulk packaging; OC1K271E-TR is supplied in cut tape format
• Physical space constraints: OC1K271E-TR has a larger diameter (0.311" vs 0.217"), which may affect board layout in space-constrained applications
• Thermal performance requirements: OC1K271E-TR offers extended operating temperature range (-55°C to 230°C) and improved temperature coefficient stability
• Power dissipation margin: OC1K271E-TR provides 1.2W rating versus 1W, offering additional thermal headroom

Both parts are active products with confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: Can OC1K271E-TR be used as a direct replacement for OX271KE in existing designs?

A: Yes. Both parts share identical resistance (270 Ohms), tolerance (±10%), composition (ceramic), and axial package configuration. The OC1K271E-TR meets or exceeds all electrical specifications of the OX271KE.

Q: What is the primary difference between these two parts?

A: The OC1K271E-TR offers higher power rating (1.2W vs 1W), extended operating temperature range (-55°C to 230°C vs -40°C to 220°C), improved temperature coefficient performance, and larger physical diameter (0.311" vs 0.217").

Q: Will the larger diameter of OC1K271E-TR affect PCB assembly?

A: The increased diameter (0.311" vs 0.217") may require verification of board layout clearances and component spacing. Axial length remains identical at 0.650", so through-hole mounting compatibility is maintained.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both OX271KE and OC1K271E-TR are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What packaging formats are available?

A: OX271KE is supplied in bulk packaging. OC1K271E-TR is supplied in cut tape format. Packaging selection should align with manufacturing process requirements and inventory management practices.