ERA-2HEC1271P Equivalent & Substitute Parts

Part Overview

The ERA-2HEC1271P is a 1.27 kOhms ±0.25% thin film chip resistor in 0402 (1005 Metric) package rated for 0.063W (1/16W) power dissipation. Manufactured by Panasonic Electronic Components, this part operates across -55°C to 125°C with a temperature coefficient of ±25ppm/°C and is ROHS3 compliant with MSL 1 rating.

The ERA-2HEC1271P is currently listed as obsolete. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications requiring this specific resistance value and package configuration.

Substiute Parts

ERA-2HEC1271P

Panasonic Electronic ComponentsIn Stock: 862ERA-2HEC1271P Datasheet

Current PartRFQ

ERA-2AEC1271X

Panasonic Electronic ComponentsIn Stock: 878ERA-2AEC1271X Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERA-2HEC1271P is determined by the following critical parameters:

• Resistance value: 1.27 kOhms
• Tolerance: ±0.25%
• Power rating: 0.063W (1/16W) minimum
• Package: 0402 (1005 Metric)
• Composition: Thin Film
• Temperature coefficient: ±25ppm/°C
• Physical dimensions: 0.039" L x 0.020" W (1.00mm x 0.50mm), height 0.016" (0.40mm) maximum
• Terminations: 2
• RoHS compliance: ROHS3

The ERA-2AEC1271X qualifies as a direct substitute, meeting all electrical and mechanical parameters while offering extended operating temperature range and automotive-grade qualification.

Parameter Comparison

Engineering Selection Recommendations

The ERA-2AEC1271X is the qualified substitute for the obsolete ERA-2HEC1271P. Both parts share identical electrical specifications (1.27 kOhms ±0.25%, 0.063W, ±25ppm/°C) and mechanical compatibility (0402 package, identical dimensions and terminations).

The ERA-2AEC1271X offers two advantages over the original part:

1. Active product status ensures ongoing availability and supply chain support
2. Extended operating temperature range (-55°C to 155°C versus -55°C to 125°C) provides additional thermal margin
3. AEC-Q200 automotive qualification provides additional reliability assurance for applications requiring automotive-grade components

Both parts maintain ROHS3 compliance and MSL 1 rating. Direct PCB layout and schematic substitution is supported without design modification.

Frequently Asked Questions (FAQ)

Q: Can ERA-2AEC1271X be used as a direct replacement for ERA-2HEC1271P?

A: Yes. Both parts are identical in resistance value (1.27 kOhms), tolerance (±0.25%), power rating (0.063W), package (0402), composition (thin film), temperature coefficient (±25ppm/°C), and physical dimensions. No circuit redesign or PCB layout modification is required.

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

A: The ERA-2A series includes AEC-Q200 automotive qualification and extended operating temperature range (-55°C to 155°C) compared to the ERA-2H series (-55°C to 125°C). Both series use identical thin film technology and package configurations.

Q: Are there any compliance differences between these parts?

A: Both parts are ROHS3 compliant with MSL 1 rating. The ERA-2AEC1271X includes REACH Unaffected status. No compliance barriers exist for substitution.

Q: Does the extended temperature range of ERA-2AEC1271X affect circuit performance?

A: No. The extended range represents additional capability. If your application operates within -55°C to 125°C, both parts perform identically. The ERA-2AEC1271X simply provides additional thermal margin.

Q: Are the physical footprints identical?

A: Yes. Both parts use 0402 (1005 Metric) package with identical dimensions: 0.039" L x 0.020" W (1.00mm x 0.50mm) and maximum seated height of 0.016" (0.40mm). PCB footprints are interchangeable.