ERA-1ARB2940C Equivalent & Substitute Parts

Part Overview

The ERA-1ARB2940C is a 294 Ohms ±0.1% thin film chip resistor in 0201 package (0.60mm x 0.30mm) rated at 0.05W (1/20W) with a temperature coefficient of ±10ppm/°C. This part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The substitute part ERA-1AEB2940C provides electrical and mechanical compatibility while offering active product status.

Substiute Parts

ERA-1ARB2940C

Panasonic Electronic ComponentsIn Stock: 827ERA-1ARB2940C Datasheet

Current PartRFQ

ERA-1AEB2940C

Panasonic Electronic ComponentsIn Stock: 1066ERA-1AEB2940C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERA-1ARB2940C is determined by the following critical parameters:

• Resistance value: 294 Ohms (exact match required)
• Tolerance: ±0.1% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Package / Case: 0201 (0603 Metric) (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Composition: Thin Film (exact match required)

The ERA-1AEB2940C meets all substitution criteria. The primary difference is the temperature coefficient (±25ppm/°C versus ±10ppm/°C on the main part), which represents a relaxation of the thermal stability specification. This difference is acceptable for most applications where the tighter ±10ppm/°C specification is not explicitly required by circuit design constraints.

Parameter Comparison

Engineering Selection Recommendations

The ERA-1AEB2940C is the direct functional equivalent for the obsolete ERA-1ARB2940C. Both parts are manufactured by Panasonic Electronic Components within the ERA-1A series and share identical electrical specifications (294 Ohms ±0.1%, 0.05W) and mechanical dimensions (0201 package).

The ERA-1AEB2940C offers the advantage of active product status, ensuring continued availability and supply chain support. Both parts maintain ROHS3 compliance and MSL 1 rating, meeting environmental and moisture handling requirements.

The temperature coefficient difference (±25ppm/°C versus ±10ppm/°C) should be evaluated against circuit-level tolerance budgets. Applications requiring the tighter ±10ppm/°C specification must confirm that the relaxed specification of the substitute part does not exceed design margins.

Frequently Asked Questions (FAQ)

Q: Can ERA-1AEB2940C be used as a direct replacement for ERA-1ARB2940C?

A: Yes. Both parts share identical resistance (294 Ohms), tolerance (±0.1%), power rating (0.05W), package (0201), and operating temperature range (-55°C ~ 155°C). The temperature coefficient difference (±25ppm/°C versus ±10ppm/°C) must be evaluated against circuit design requirements.

Q: What is the primary difference between these two parts?

A: The ERA-1AEB2940C has a temperature coefficient of ±25ppm/°C compared to ±10ppm/°C for the ERA-1ARB2940C. Additionally, the ERA-1AEB2940C is active product status while the ERA-1ARB2940C is obsolete.

Q: Are the physical dimensions identical?

A: Yes. Both parts are 0.024" L x 0.012" W (0.60mm x 0.30mm) with a maximum seated height of 0.010" (0.26mm), ensuring identical PCB footprint compatibility.

Q: Do both parts meet RoHS compliance?

A: Yes. Both ERA-1ARB2940C and ERA-1AEB2940C are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What packaging options are available?

A: The ERA-1AEB2940C is supplied in Tape & Reel (TR) packaging. Packaging specification for ERA-1ARB2940C was not provided in the technical data.