ERA-1ARW103C Equivalent & Substitute Parts

Part Overview

The ERA-1ARW103C is a 10 kOhms ±0.05% thin film chip resistor manufactured by Panasonic Electronic Components in the 0201 (0603 Metric) package format. This component is rated for 0.05W (1/20W) power dissipation with a temperature coefficient of ±10ppm/°C and operates across the -55°C to 155°C temperature range. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

ERA-1ARW103C

Panasonic Electronic ComponentsIn Stock: 764ERA-1ARW103C Datasheet

Current PartRFQ

ERA-1AEB103C

Panasonic Electronic ComponentsIn Stock: 946ERA-1AEB103C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERA-1ARW103C is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 10 kOhms
• Package format: 0201 (0603 Metric)
• Power rating: 0.05W (1/20W)
• Composition: Thin Film
• Operating temperature range: -55°C to 155°C
• RoHS compliance: ROHS3 Compliant

Allowable Variation Parameters:

• Tolerance: The main part specifies ±0.05%. Substitute parts with equal or tighter tolerance specifications (lower tolerance values) are functionally equivalent and may be used interchangeably.
• Temperature coefficient: The main part specifies ±10ppm/°C. Substitute parts with equal or lower temperature coefficient values are acceptable.

The ERA-1AEB103C meets all mandatory matching criteria and represents an active production alternative to the obsolete ERA-1ARW103C.

Parameter Comparison

Engineering Selection Recommendations

The ERA-1AEB103C is the designated substitute for the obsolete ERA-1ARW103C. Both components are manufactured by Panasonic Electronic Components and maintain identical mechanical and thermal specifications. The ERA-1AEB103C is currently in active production status, ensuring supply chain availability and long-term support.

The ERA-1AEB103C carries a relaxed tolerance specification of ±0.1% compared to the main part's ±0.05%, and a higher temperature coefficient of ±25ppm/°C versus ±10ppm/°C. These parameter differences remain within acceptable substitution boundaries for thin film 0201 resistor applications. Both components satisfy ROHS3 compliance requirements and maintain identical moisture sensitivity ratings.

Frequently Asked Questions (FAQ)

Q: Can the ERA-1AEB103C directly replace the ERA-1ARW103C in existing designs?

A: Yes. Both components share identical resistance values, power ratings, package formats, and operating temperature ranges. The ERA-1AEB103C is the active production equivalent of the obsolete ERA-1ARW103C.

Q: What is the significance of the tolerance difference between these parts?

A: The main part specifies ±0.05% tolerance while the substitute specifies ±0.1%. The substitute's tolerance is wider but remains suitable for applications where the original tolerance was specified. If circuit performance is critically dependent on the tighter ±0.05% tolerance, design validation is necessary.

Q: How do the temperature coefficient differences affect substitution?

A: The main part has a temperature coefficient of ±10ppm/°C while the substitute has ±25ppm/°C. The substitute exhibits greater resistance variation across temperature extremes. For applications operating across the full -55°C to 155°C range where temperature stability is critical, this difference should be evaluated against circuit requirements.

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

A: Yes. Both the ERA-1ARW103C and ERA-1AEB103C are supplied in 0201 (0603 Metric) package format with identical physical dimensions and termination specifications.

Q: What is the product status difference and why does it matter?

A: The ERA-1ARW103C is classified as obsolete, indicating discontinued production. The ERA-1AEB103C is in active production status, ensuring continued availability and supply chain support for new designs and production runs.