OA56GKE Equivalent & Substitute Parts

Part Overview

The OA56GKE is a 5.6 Ohms ±10% 1W through-hole resistor in axial package configuration, manufactured by Ohmite as part of the Little Demon® OA series. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The carbon composition construction with pulse withstanding capability defines its operational characteristics and determines compatibility with alternative components.

Substiute Parts

OA56GKE

OhmiteIn Stock: 1127OA56GKE Datasheet

Current PartRFQ

OX56GKE

OhmiteIn Stock: 971OX56GKE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OA56GKE is determined by the following critical parameters:

• Resistance value: 5.6 Ohms (exact match required)
• Tolerance: ±10% (defines acceptable resistance range)
• Power rating: 1W (minimum thermal dissipation capability)
• Package configuration: Axial (mechanical and electrical interface requirement)
• Pulse withstanding capability: Required feature for circuit protection applications
• Terminal count: 2 (standard through-hole configuration)

The OX56GKE qualifies as a direct substitute based on matching all critical electrical and mechanical parameters. While composition differs (ceramic versus carbon composition), both materials satisfy the specified resistance, tolerance, power, and pulse withstanding requirements within the axial package format.

Parameter Comparison

Engineering Selection Recommendations

The OX56GKE is the designated manufacturer-recommended substitute for the obsolete OA56GKE. Selection of the OX56GKE is supported by:

• Active product status ensuring continued availability and supply chain reliability
• Identical electrical specifications (5.6 Ohms, ±10%, 1W)
• Matching axial package configuration for direct mechanical compatibility
• Pulse withstanding capability maintained for circuit protection applications
• REACH Unaffected compliance status matching the original component
• Enhanced moisture resistance feature in ceramic composition construction

The transition from carbon composition to ceramic composition does not compromise functional performance within the specified electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can the OX56GKE be used as a direct replacement for the OA56GKE in existing designs?

A: Yes. Both components share identical resistance (5.6 Ohms), tolerance (±10%), power rating (1W), and axial package configuration. The OX56GKE is the manufacturer-recommended substitute.

Q: What is the primary difference between the OA56GKE and OX56GKE?

A: The OA56GKE uses carbon composition construction, while the OX56GKE uses ceramic composition. Both compositions satisfy the specified electrical and mechanical requirements. The OX56GKE adds moisture resistance as an additional feature.

Q: Are there physical dimension differences between these components?

A: Minor dimensional variations exist. The OA56GKE measures 0.236" Dia x 0.591" L (6.00mm x 15.00mm), while the OX56GKE measures 0.217" Dia x 0.650" L (5.50mm x 16.50mm). Both fit standard axial package footprints used in through-hole designs.

Q: Does the OX56GKE meet the same compliance requirements as the OA56GKE?

A: Yes. Both components maintain REACH Unaffected status. The OX56GKE additionally carries RoHS3 compliance certification.

Q: Why is the OA56GKE classified as obsolete?

A: Obsolete status indicates the component is no longer in active production. The OX56GKE represents the active alternative within Ohmite's current product portfolio.