ERA-1ARW6491C Equivalent & Substitute Parts

Part Overview

The ERA-1ARW6491C is a 6.49 kOhms thin film chip resistor manufactured by Panasonic Electronic Components in the 0201 (0603 Metric) package format. This component is rated at 0.05W (1/20W) with ±0.05% tolerance and operates across the temperature range of -55°C to 155°C. The part is currently classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning.

Substiute Parts

ERA-1ARW6491C

Panasonic Electronic ComponentsIn Stock: 1966ERA-1ARW6491C Datasheet

Current PartRFQ

ERA-1AEB6491C

Panasonic Electronic ComponentsIn Stock: 697ERA-1AEB6491C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERA-1ARW6491C is determined by the following critical parameters:

• Resistance value: 6.49 kOhms (exact match required)
• Package format: 0201 (0603 Metric) (exact match required)
• Power rating: 0.05W minimum (equal or greater acceptable)
• Composition: Thin film technology (maintains performance characteristics)
• Operating temperature range: -55°C to 155°C minimum (equal or wider range acceptable)
• RoHS compliance: ROHS3 Compliant (regulatory requirement)

The ERA-1AEB6491C meets all substitution criteria. While tolerance specification differs (±0.1% versus ±0.05%), the substitute maintains the same resistance value, package, power rating, composition, temperature range, and regulatory compliance. The substitute is currently in active production status, addressing the obsolescence of the original part.

Parameter Comparison

Engineering Selection Recommendations

The ERA-1AEB6491C is the qualified substitute for the obsolete ERA-1ARW6491C. Both components are manufactured by Panasonic Electronic Components and maintain identical electrical specifications for resistance value, power rating, and operating temperature range. Both achieve ROHS3 compliance and MSL 1 rating.

The substitute part is currently in active production, ensuring long-term availability and supply chain continuity. The tolerance specification of ±0.1% on the substitute remains within acceptable precision for most circuit applications requiring 6.49 kOhms thin film resistors in 0201 package format. The temperature coefficient difference (±25ppm/°C versus ±10ppm/°C) reflects the active product line specification and does not compromise thermal performance across the specified operating range.

Frequently Asked Questions (FAQ)

Q: Can ERA-1AEB6491C be used as a direct replacement for ERA-1ARW6491C?

A: Yes. Both parts share identical resistance value (6.49 kOhms), package format (0201), power rating (0.05W), composition (thin film), and operating temperature range (-55°C to 155°C). Both are ROHS3 compliant with MSL 1 rating.

Q: What is the difference in tolerance between these parts?

A: The main part specifies ±0.05% tolerance, while the substitute specifies ±0.1% tolerance. The substitute tolerance is wider but remains within the thin film resistor precision category.

Q: Does the temperature coefficient difference affect circuit performance?

A: The main part specifies ±10ppm/°C while the substitute specifies ±25ppm/°C. Both maintain stable performance across the -55°C to 155°C operating range. The difference reflects active product line specifications and does not compromise thermal stability for standard applications.

Q: Why is the original part obsolete?

A: The ERA-1ARW6491C is classified as obsolete by the manufacturer. The ERA-1AEB6491C represents the current active product offering for this resistance value and package combination.

Q: Are there packaging differences between these parts?

A: The main part is supplied in Cut Tape (CT) & Digi-Reel® packaging. The substitute is supplied in Tape & Reel (TR) packaging. Both formats are standard for 0201 package components and are compatible with automated assembly equipment.