AX101K Equivalent & Substitute Parts

Part Overview

The AX101K is a 100 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 AX101K is currently classified as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications.

Substiute Parts

AX101K

OhmiteIn Stock: 1202AX101K Datasheet

Current PartRFQ

AX101KE

OhmiteIn Stock: 868AX101KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete AX101K is based on strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications for resistance value, tolerance, power rating, ceramic composition, radial package configuration, physical dimensions, and operating temperature range. The AX101K is directly substituted by the AX101KE, which is manufactured by Ohmite within the same PulsEater® A series and maintains 100% parameter compatibility while offering active product status and improved compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The AX101KE is the direct equivalent for the obsolete AX101K. Both parts are manufactured by Ohmite within the identical PulsEater® A series and share complete electrical and mechanical parameter equivalence. The AX101KE offers the advantage of active product status, ensuring continued availability and supply chain reliability. Additionally, the AX101KE achieves ROHS3 compliance, whereas the AX101K is non-compliant, making the AX101KE the preferred selection for applications subject to RoHS regulatory requirements. No performance or functional differences exist between these parts; selection should be based on compliance requirements and supply availability.

Frequently Asked Questions (FAQ)

Q: Can the AX101KE be used as a direct replacement for the AX101K in existing designs?

A: Yes. The AX101KE is electrically and mechanically identical to the AX101K. All parameters including resistance, tolerance, power rating, package dimensions, and operating temperature range are equivalent. Direct substitution is possible without circuit modification.

Q: What is the primary reason to transition from AX101K to AX101KE?

A: The AX101K is obsolete, while the AX101KE maintains active product status. The AX101KE also provides ROHS3 compliance, addressing regulatory requirements that the AX101K does not meet.

Q: Are the physical dimensions identical between AX101K and AX101KE?

A: Yes. Both parts measure 0.591" L x 0.827" W (15.00mm x 21.00mm) with a maximum seated height of 1.102" (28.00mm). PCB layout and mechanical fit are identical.

Q: Do both parts operate within the same temperature range?

A: Yes. Both the AX101K and AX101KE operate across the identical temperature range of -55°C to 150°C.

Q: What packaging options are available for the AX101KE?

A: The AX101KE is supplied in bulk packaging, whereas the AX101K packaging specification was not defined. Confirm packaging requirements with your procurement process.