ERA-2HEC3091P Equivalent & Substitute Parts

Part Overview

The ERA-2HEC3091P is a 3.09 kOhms ±0.25% thin film chip resistor in 0402 (1005 Metric) package rated at 1/16W (0.063W). Manufactured by Panasonic Electronic Components, this part is classified as obsolete. Due to its obsolete status and limited availability relative to active production alternatives, identifying equivalent substitute parts is essential for design continuity and procurement planning.

Substiute Parts

ERA-2HEC3091P

Panasonic Electronic ComponentsIn Stock: 1183ERA-2HEC3091P Datasheet

Current PartRFQ

ERA-2AEC3091X

Panasonic Electronic ComponentsIn Stock: 1033ERA-2AEC3091X Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERA-2HEC3091P is determined by the following critical parameters:

• Resistance Value: Must be 3.09 kOhms
• Tolerance: Must be ±0.25%
• Power Rating: Must be 0.063W (1/16W) minimum
• Package: Must be 0402 (1005 Metric)
• Composition: Must be Thin Film
• Temperature Coefficient: Must be ±25ppm/°C
• Physical Dimensions: Must match 0.039" L x 0.020" W (1.00mm x 0.50mm) with maximum seated height of 0.016" (0.40mm)
• Terminations: Must have 2 terminations
• RoHS Compliance: Must maintain ROHS3 Compliant status

The ERA-2AEC3091X meets all substitution criteria and is qualified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The ERA-2AEC3091X is the qualified substitute for the obsolete ERA-2HEC3091P. Both parts are manufactured by Panasonic Electronic Components and share identical electrical specifications, physical dimensions, and package configuration.

The ERA-2AEC3091X offers the following advantages:

• Active Product Status: Currently in production with established supply chain availability (944 Pcs in stock)
• Extended Operating Temperature Range: Rated to -55°C ~ 155°C versus -55°C ~ 125°C, providing additional thermal margin
• Automotive AEC-Q200 Qualification: Meets automotive-grade reliability standards, ensuring consistent quality and traceability
• ROHS3 Compliance: Maintains regulatory compliance equivalent to the original part
• Identical Electrical Performance: Resistance, tolerance, temperature coefficient, and power rating are unchanged

Selection of the ERA-2AEC3091X ensures design continuity while transitioning from an obsolete part to an active, qualified alternative with superior availability and extended thermal specifications.

Frequently Asked Questions (FAQ)

Q: Can the ERA-2AEC3091X be used as a direct replacement for the ERA-2HEC3091P?

A: Yes. Both parts share identical resistance (3.09 kOhms), tolerance (±0.25%), power rating (0.063W), package (0402), composition (thin film), temperature coefficient (±25ppm/°C), physical dimensions, and termination count. The ERA-2AEC3091X is electrically and mechanically interchangeable.

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

A: The ERA-2H series represents the standard thin film resistor line, while the ERA-2A series is the automotive-grade variant qualified to AEC-Q200 standards. Both series maintain identical electrical and physical specifications for equivalent part numbers.

Q: Does the extended operating temperature range of the ERA-2AEC3091X affect compatibility?

A: No. The extended range (-55°C ~ 155°C versus -55°C ~ 125°C) is a superset of the original specification. Applications designed for the ERA-2HEC3091P will operate within the qualified range of the ERA-2AEC3091X without modification.

Q: Are there any package or footprint differences?

A: No. Both parts use the 0402 (1005 Metric) package with identical dimensions of 0.039" L x 0.020" W (1.00mm x 0.50mm) and maximum seated height of 0.016" (0.40mm). PCB footprints are identical.

Q: What is the significance of AEC-Q200 qualification?

A: AEC-Q200 is an automotive industry standard for passive components. It ensures the part meets stringent reliability, quality, and traceability requirements. This qualification is beneficial for all applications requiring high reliability, not limited to automotive use.

Q: Are both parts RoHS compliant?

A: Yes. Both the ERA-2HEC3091P and ERA-2AEC3091X are ROHS3 Compliant, meeting current regulatory requirements for hazardous substance restrictions.