Ohmite AY470K Equivalent & Substitute Parts

Part Overview

The Ohmite AY470K is a 47 Ohm, 4.5W radial through-hole resistor with ceramic composition, designed for applications requiring flame retardant, moisture-resistant, and pulse-withstanding performance. This component is classified as obsolete, making identification of suitable substitutes essential for ongoing production and maintenance applications. The PulsEater® A series construction provides non-inductive characteristics suitable for demanding electrical environments.

Substiute Parts

AY470K

OhmiteIn Stock: 954AY470K Datasheet

Current PartRFQ

AY470KE

OhmiteIn Stock: 1344AY470KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AY470K is determined by strict equivalence across the following electrical and mechanical parameters:

• Resistance value: 47 Ohms
• Tolerance: ±10%
• Power dissipation capability: 4.5W
• Ceramic composition with identical feature set
• Radial package configuration
• Operating temperature range: -55°C ~ 150°C
• Physical dimensions and termination count

The AY470KE qualifies as a direct substitute based on complete alignment with all specified parameters. The primary distinction is product status and compliance certification, not electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

The AY470KE is the direct equivalent for the obsolete AY470K. Both components share identical electrical specifications, ceramic composition, and mechanical dimensions. The AY470KE maintains active product status with current manufacturing support and availability.

For applications subject to RoHS3 compliance requirements, the AY470KE is the appropriate selection. The AY470K, classified as RoHS non-compliant, is suitable only for legacy systems or applications where RoHS compliance is not mandated.

Both components are REACH Unaffected and classified under ECCN EAR99, with identical HTSUS coding (8533.21.0090).

Frequently Asked Questions (FAQ)

Q: Can the AY470KE directly replace the AY470K in existing designs?

A: Yes. The AY470KE is electrically and mechanically identical to the AY470K. All electrical parameters, physical dimensions, and functional characteristics are equivalent. Direct substitution is possible without circuit modification.

Q: What is the primary reason to transition from AY470K to AY470KE?

A: The AY470K is obsolete with no active manufacturing. The AY470KE is an active product with current availability. Additionally, the AY470KE meets ROHS3 compliance, whereas the AY470K does not.

Q: Are there any packaging differences between these parts?

A: The AY470K is supplied in standard packaging, while the AY470KE is supplied in bulk packaging. Both maintain identical component specifications and radial lead configuration.

Q: Do both parts meet the same environmental and safety standards?

A: Both components feature identical flame retardant coating, moisture resistance, non-inductive construction, and pulse-withstanding capability. Both are REACH Unaffected. The AY470KE additionally meets ROHS3 compliance requirements.

Q: What is the inventory status for these parts?

A: The AY470K has 924 pieces in stock (obsolete status). The AY470KE has 1287 pieces in stock (active status), providing greater availability for new orders and ongoing supply.