AY150K Equivalent & Substitute Parts Reference

Part Overview

The AY150K is a 15 Ohm, 4.5W through-hole radial resistor manufactured by Ohmite as part of the PulsEater® A series. This ceramic composition resistor features flame retardant coating, moisture resistance, non-inductive design, and pulse withstanding capability. The AY150K is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and component procurement.

Substiute Parts

AY150K

OhmiteIn Stock: 1051AY150K Datasheet

Current PartRFQ

AY150KE

OhmiteIn Stock: 1060AY150KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete AY150K is determined by strict equivalence across the following electrical and mechanical parameters:

• Resistance Value: 15 Ohms (exact match required)
• Tolerance: ±10% (exact match required)
• Power Rating: 4.5W (exact match required)
• Composition: Ceramic (exact match required)
• Package Configuration: Radial Lead (exact match required)
• Operating Temperature Range: -55°C to 150°C (exact match required)
• Physical Dimensions: 0.984" L x 0.827" W, Height 1.102" max (exact match required)
• Feature Set: Flame Retardant Coating, Moisture Resistant, Non-Inductive, Pulse Withstanding, Safety (exact match required)

The AY150KE qualifies as a direct substitute based on complete alignment with all specified electrical and mechanical parameters within the PulsEater® A series.

Parameter Comparison

Engineering Selection Recommendations

The AY150KE is the direct equivalent substitute for the obsolete AY150K. Both components are manufactured by Ohmite within the PulsEater® A series and maintain identical electrical specifications, tolerance, power rating, and physical dimensions.

The primary distinction between the two parts is product status and regulatory compliance. The AY150K is obsolete, while the AY150KE maintains active product status with current manufacturing support. Additionally, the AY150KE achieves ROHS3 compliance, whereas the AY150K is RoHS non-compliant. This compliance improvement in the substitute part aligns with modern regulatory requirements for electronic component procurement.

For applications requiring the AY150K specification, the AY150KE provides functional and mechanical equivalence with the added benefit of active availability and improved regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the AY150KE be used as a direct replacement for the AY150K?

A: Yes. The AY150KE is electrically and mechanically identical to the AY150K across all specified parameters, including resistance value, tolerance, power rating, composition, package configuration, operating temperature range, and physical dimensions.

Q: What is the primary reason to substitute the AY150K?

A: The AY150K is classified as obsolete. The AY150KE is the active equivalent part from the same manufacturer and series, ensuring continued component availability and supply chain continuity.

Q: Are there any differences in physical dimensions between the AY150K and AY150KE?

A: No. Both parts share identical physical dimensions of 0.984" L x 0.827" W (25.00mm x 21.00mm) with a maximum seated height of 1.102" (28.00mm), ensuring direct board-level compatibility.

Q: Does the AY150KE meet modern regulatory requirements?

A: Yes. The AY150KE is ROHS3 compliant, whereas the AY150K is RoHS non-compliant. This improvement supports compliance with current regulatory standards for electronic component procurement.

Q: Are both parts available in the same packaging options?

A: The AY150K is supplied in standard packaging, while the AY150KE is supplied in bulk packaging. Both maintain identical component specifications and radial lead configuration.

Q: What is the operating temperature range for both parts?

A: Both the AY150K and AY150KE operate across the identical temperature range of -55°C to 150°C.