AX330K Equivalent & Substitute Parts

Part Overview

The AX330K is a 33 Ohm, 4.6W radial through-hole 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 AX330K is currently classified as obsolete, making identification of suitable substitute components essential for ongoing maintenance, repair, and legacy system support.

Substiute Parts

AX330K

OhmiteIn Stock: 968AX330K Datasheet

Current PartRFQ

AX330KE

OhmiteIn Stock: 1144AX330KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AX330K is determined by strict equivalence across the following critical parameters:

• Resistance value: 33 Ohms
• Tolerance: ±10%
• Power rating: 4.6W
• Composition: Ceramic
• Package configuration: Radial Lead
• Operating temperature range: -55°C ~ 150°C
• Physical dimensions and height specifications
• Feature set: Flame Retardant Coating, Moisture Resistant, Non-Inductive, Pulse Withstanding, Safety

The AX330KE meets all these criteria and is classified as a direct manufacturer equivalent within the same PulsEater® A series.

Parameter Comparison

Engineering Selection Recommendations

The AX330KE is the direct equivalent substitute for the obsolete AX330K. Both components are manufactured by Ohmite within the same PulsEater® A series and share identical electrical specifications, mechanical dimensions, and functional features.

The primary distinction between the two parts is product status and regulatory compliance. The AX330K is obsolete and RoHS non-compliant, while the AX330KE is an active product with ROHS3 compliance. For new designs, maintenance applications, or systems requiring regulatory compliance, the AX330KE is the appropriate selection.

Both parts are REACH Unaffected and classified under ECCN EAR99 and HTSUS 8533.21.0090.

Frequently Asked Questions (FAQ)

Q: Can the AX330KE be used as a direct replacement for the AX330K?

A: Yes. The AX330KE is a direct manufacturer equivalent. Both components have identical resistance values (33 Ohms), tolerance (±10%), power rating (4.6W), composition (ceramic), package configuration (radial lead), operating temperature range (-55°C ~ 150°C), and physical dimensions. They are functionally and mechanically interchangeable.

Q: What is the primary reason to substitute the AX330K?

A: The AX330K is classified as obsolete. The AX330KE is the active equivalent from the same manufacturer and series, ensuring continued availability and supply chain reliability.

Q: Are there any compliance differences between these parts?

A: Yes. The AX330K is RoHS non-compliant, while the AX330KE is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the AX330KE is the required selection.

Q: Do these parts have identical physical dimensions?

A: Yes. Both the AX330K and AX330KE have identical dimensions: 0.591" L x 0.827" W (15.00mm x 21.00mm) with a maximum seated height of 1.102" (28.00mm). They are pin-compatible and require no PCB layout modifications.

Q: Are both parts suitable for high-temperature applications?

A: Yes. Both components operate across the temperature range of -55°C ~ 150°C and are suitable for applications within this specification.