OA153KE Equivalent & Substitute Parts

Part Overview

The OA153KE is a 15 kOhms ±10% 1W axial through-hole resistor manufactured by Ohmite as part of the Little Demon® OA series. This carbon composition resistor features pulse withstanding capability and is designed for through-hole applications. The product is currently obsolete, making identification of suitable equivalent parts essential for maintenance, repair, and legacy system support.

Substiute Parts

OA153KE

OhmiteIn Stock: 933OA153KE Datasheet

Current PartRFQ

OX153KE

OhmiteIn Stock: 1750OX153KE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OA153KE is determined by strict equivalence across the following critical parameters:

• Resistance value: 15 kOhms (exact match required)
• Tolerance: ±10% (exact match required)
• Power rating: 1W (exact match required)
• Package configuration: Axial through-hole (exact match required)
• Number of terminations: 2 (exact match required)
• Pulse withstanding capability: Required feature

The OX153KE qualifies as a direct substitute because it maintains all critical electrical specifications and package requirements. While the OX153KE uses ceramic composition instead of carbon composition and includes moisture resistance as an additional feature, these differences represent functional improvements that do not compromise compatibility in applications designed for the OA153KE.

Parameter Comparison

Engineering Selection Recommendations

The OX153KE is the manufacturer-recommended substitute for the obsolete OA153KE. Selection of the OX153KE is supported by the following factors:

• Both parts are manufactured by Ohmite, ensuring design continuity and reliability
• The OX153KE maintains all critical electrical and mechanical specifications required for direct substitution
• The OX153KE is in active production status, ensuring long-term availability and supply chain stability
• The OX153KE achieves ROHS3 compliance, meeting current regulatory requirements
• The OX153KE provides enhanced environmental performance through moisture resistance, representing a functional upgrade without compromising backward compatibility
• Both parts carry identical REACH and ECCN classifications, confirming regulatory equivalence

Frequently Asked Questions (FAQ)

Q: Can the OX153KE be used as a direct replacement for the OA153KE in existing designs?

A: Yes. The OX153KE maintains identical resistance, tolerance, power rating, and axial package configuration. Both parts feature pulse withstanding capability and are manufactured by Ohmite. The OX153KE is the manufacturer-recommended substitute.

Q: What is the difference between carbon composition and ceramic composition in these resistors?

A: Both compositions meet the specified electrical parameters for this application. The ceramic composition of the OX153KE provides moisture resistance as an additional feature and operates across a wider temperature range (-40°C ~ 220°C). The carbon composition of the OA153KE is obsolete.

Q: Are there any physical dimension differences between the OA153KE and OX153KE?

A: Minor dimensional variations exist. The OA153KE measures 0.236" diameter × 0.591" length (6.00mm × 15.00mm), while the OX153KE measures 0.217" diameter × 0.650" length (5.50mm × 16.50mm). Both are axial through-hole packages suitable for standard PCB mounting.

Q: Does the OX153KE meet current regulatory requirements?

A: Yes. The OX153KE is ROHS3 compliant and carries REACH Unaffected status, meeting current environmental and regulatory standards. The OA153KE regulatory status is not specified.

Q: What is the availability status of these parts?

A: The OA153KE is obsolete with limited inventory (880 pcs). The OX153KE is in active production with higher inventory availability (1653 pcs), ensuring reliable supply for new designs and replacements.