ERA-2HRB2940X Equivalent & Substitute Parts

Part Overview

The ERA-2HRB2940X is a 294 Ohms ±0.1% thin film chip resistor in 0402 (1005 Metric) package rated at 0.063W (1/16W). Manufactured by Panasonic Electronic Components, this component is classified as obsolete. Due to its obsolete status, identifying equivalent substitute parts with matching electrical and mechanical specifications is essential for design continuity and procurement planning.

Substiute Parts

ERA-2HRB2940X

Panasonic Electronic ComponentsIn Stock: 949ERA-2HRB2940X Datasheet

Current PartRFQ

ERA-2ARB2940X

Panasonic Electronic ComponentsIn Stock: 1634ERA-2ARB2940X Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ERA-2HRB2940X is determined by the following critical parameters:

• Resistance value: 294 Ohms (exact match required)
• Tolerance: ±0.1% (precision requirement)
• Power rating: 0.063W minimum
• Package: 0402 (1005 Metric) form factor
• Composition: Thin film technology
• Temperature coefficient: ±10ppm/°C or better
• RoHS compliance: ROHS3 Compliant

The ERA-2ARB2940X meets all these criteria and qualifies as a direct substitute. Both parts share identical electrical specifications and physical dimensions, with the substitute offering an extended operating temperature range and automotive-grade qualification.

Parameter Comparison

Engineering Selection Recommendations

The ERA-2ARB2940X is the qualified substitute for the obsolete ERA-2HRB2940X. Selection is based on the following factors:

• Both parts are manufactured by Panasonic Electronic Components and share identical electrical and mechanical specifications
• The substitute maintains the same resistance value, tolerance, power rating, and package configuration
• The ERA-2ARB2940X offers an extended operating temperature range (-55°C ~ 155°C versus -55°C ~ 125°C), providing additional thermal margin
• The substitute carries AEC-Q200 automotive qualification, indicating enhanced reliability screening and quality assurance
• Both parts maintain ROHS3 compliance and MSL 1 rating
• The substitute is currently in active production status, ensuring long-term availability

Frequently Asked Questions (FAQ)

Q: Can ERA-2ARB2940X be used as a direct replacement for ERA-2HRB2940X?

A: Yes. Both parts have identical resistance values (294 Ohms), tolerance (±0.1%), power rating (0.063W), package (0402), and temperature coefficient (±10ppm/°C). The substitute is physically and electrically interchangeable.

Q: What is the difference between the ERA-2H and ERA-2A series?

A: The ERA-2A series incorporates AEC-Q200 automotive qualification and extends the operating temperature range to 155°C, compared to 125°C for the ERA-2H series. Both series use identical thin film technology and meet the same precision and RoHS requirements.

Q: Are there any package or footprint differences?

A: No. Both parts use the 0402 (1005 Metric) package with identical dimensions (0.039" L x 0.020" W) and maximum seated height (0.016"). PCB footprints are identical.

Q: Does the extended temperature range of ERA-2ARB2940X affect circuit performance?

A: The extended range does not affect performance within the original operating window (-55°C ~ 125°C). The substitute maintains the same temperature coefficient (±10ppm/°C) and tolerance specifications across its full operating range.

Q: What is the availability status of these parts?

A: ERA-2HRB2940X is obsolete with 933 pieces in stock. ERA-2ARB2940X is active in production with 1611 pieces available, ensuring continued supply for new designs and replacements.