AW101K Equivalent & Substitute Parts

Part Overview

The AW101K is a 100 Ohm, 2.5W radial through-hole resistor manufactured by Ohmite, part of the PulsEater® A series. This ceramic composition resistor features flame retardant coating, moisture resistance, non-inductive design, and pulse withstanding capability. The AW101K is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and component procurement.

Substiute Parts

AW101K

OhmiteIn Stock: 1069AW101K Datasheet

Current PartRFQ

AW101KE

OhmiteIn Stock: 1099AW101KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AW101K is determined by strict equivalence across the following critical parameters:

• Resistance value: 100 Ohms
• Tolerance: ±10%
• Power rating: 2.5W
• Composition: Ceramic
• Package configuration: Radial lead
• Operating temperature range: -55°C to 150°C
• Physical dimensions and termination count: 2-pin radial configuration

The AW101KE qualifies as a direct substitute based on complete alignment with all electrical and mechanical parameters. Both parts maintain identical resistance, tolerance, power dissipation capability, and thermal operating range. Physical dimensions and radial lead configuration are equivalent, ensuring mechanical compatibility in existing circuit board layouts.

Parameter Comparison

Engineering Selection Recommendations

The AW101KE is the direct equivalent substitute for the obsolete AW101K. Both parts are manufactured by Ohmite and share identical electrical specifications and mechanical dimensions, ensuring drop-in compatibility.

The AW101KE offers two significant advantages over the original part:

1. Product Status: The AW101KE maintains active production status, ensuring long-term availability and supply chain continuity.

2. Regulatory Compliance: The AW101KE is RoHS compliant, whereas the AW101K is non-compliant. For applications subject to RoHS requirements, the AW101KE satisfies regulatory mandates while maintaining full electrical and mechanical equivalence.

Selection of the AW101KE is appropriate for new designs, redesigns, and component replacement in existing applications where the AW101K is no longer procurable.

Frequently Asked Questions (FAQ)

Q: Can the AW101KE be used as a direct replacement for the AW101K?

A: Yes. The AW101KE is electrically and mechanically equivalent to the AW101K. Both parts feature 100 Ohm resistance, ±10% tolerance, 2.5W power rating, ceramic composition, and radial lead configuration. Physical dimensions and operating temperature ranges are identical, enabling direct substitution in circuit board layouts.

Q: What is the primary reason to transition from AW101K to AW101KE?

A: The AW101K is obsolete and no longer in production. The AW101KE is the active equivalent from the same manufacturer, ensuring continued component availability. Additionally, the AW101KE is RoHS compliant, meeting regulatory requirements for applications subject to RoHS directives.

Q: Are there any packaging differences between these parts?

A: The AW101K is supplied in standard packaging, while the AW101KE is supplied in bulk packaging. Both parts maintain identical radial lead configuration and physical dimensions suitable for through-hole PCB assembly.

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

A: Yes. Both the AW101K and AW101KE operate across the identical temperature range of -55°C to 150°C, ensuring thermal compatibility in all applications.

Q: What compliance certifications differ between these parts?

A: The AW101KE is RoHS compliant with MSL rating of 1 (Unlimited), while the AW101K is RoHS non-compliant. For applications requiring RoHS compliance, the AW101KE satisfies regulatory requirements.