ERA-2HEC5231P Equivalent & Substitute Parts

Part Overview

The ERA-2HEC5231P is a 5.23 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 operates across -55°C to 125°C with a temperature coefficient of ±25ppm/°C. The product is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

ERA-2HEC5231P

Panasonic Electronic ComponentsIn Stock: 912ERA-2HEC5231P Datasheet

Current PartRFQ

ERA-2AEC5231X

Panasonic Electronic ComponentsIn Stock: 1126ERA-2AEC5231X Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

• Resistance value: 5.23 kOhms (exact match required)
• Tolerance: ±0.25% (exact match required)
• Power rating: 0.063W, 1/16W (exact match required)
• Package: 0402 (1005 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Temperature coefficient: ±25ppm/°C (exact match required)
• RoHS compliance: ROHS3 Compliant (minimum requirement)
• Moisture sensitivity: MSL 1 or better (exact match required)

The ERA-2AEC5231X meets all substitution criteria. This part maintains identical electrical specifications and physical dimensions while offering active product status and extended operating temperature range (-55°C to 155°C). The ERA-2AEC5231X includes AEC-Q200 automotive qualification, providing additional reliability assurance.

Parameter Comparison

Engineering Selection Recommendations

The ERA-2AEC5231X is the direct substitute for ERA-2HEC5231P. Both parts are manufactured by Panasonic and share identical electrical and mechanical specifications. The ERA-2AEC5231X offers the advantage of active product status, ensuring long-term availability and supply chain continuity. The extended operating temperature range (-55°C to 155°C versus -55°C to 125°C) provides additional thermal margin for applications requiring higher temperature operation. AEC-Q200 automotive qualification on the ERA-2AEC5231X indicates compliance with automotive reliability standards, beneficial for applications in automotive or high-reliability environments. Both parts maintain ROHS3 compliance and MSL 1 rating, supporting lead-free manufacturing and unlimited moisture exposure handling.

Frequently Asked Questions (FAQ)

Q: Can ERA-2AEC5231X be used as a direct replacement for ERA-2HEC5231P?

A: Yes. Both parts share identical resistance (5.23 kOhms), tolerance (±0.25%), power rating (0.063W), package (0402), composition (thin film), temperature coefficient (±25ppm/°C), and physical dimensions. Electrical and mechanical compatibility is complete.

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 to 155°C. The ERA-2H series operates to 125°C without automotive qualification. Both series maintain identical electrical specifications and package dimensions.

Q: Does the extended temperature range of ERA-2AEC5231X affect circuit performance?

A: No. The extended range (-55°C to 155°C) represents expanded operational capability. The temperature coefficient (±25ppm/°C) remains identical, ensuring equivalent performance within the original operating range of -55°C to 125°C.

Q: Are there any PCB layout or assembly considerations when substituting ERA-2AEC5231X for ERA-2HEC5231P?

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

Q: What is the inventory status for these parts?

A: ERA-2HEC5231P is obsolete with 817 pieces in stock. ERA-2AEC5231X is active with 1081 pieces in stock, providing superior long-term availability.