ERA-2HHD25R5X Equivalent & Substitute Parts

Part Overview

The ERA-2HHD25R5X is a 25.5 Ohm ±0.5% thin film chip resistor in 0402 (1005 Metric) package rated at 1/16W (0.063W). This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part is ROHS3 compliant with MSL 1 rating, indicating unlimited moisture sensitivity protection.

Substiute Parts

ERA-2HHD25R5X

Panasonic Electronic ComponentsIn Stock: 1223ERA-2HHD25R5X Datasheet

Current PartRFQ

ERA-2AED25R5X

Panasonic Electronic ComponentsIn Stock: 843ERA-2AED25R5X Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERA-2HHD25R5X is determined by the following critical parameters:

• Resistance value: 25.5 Ohms (exact match required)
• Tolerance: ±0.5% (exact match required)
• Power rating: 0.063W minimum (1/16W)
• Package: 0402 (1005 Metric) (exact match required)
• Composition: Thin film construction
• Termination count: 2 terminations

The ERA-2AED25R5X qualifies as a direct substitute based on matching all critical electrical and mechanical parameters. While the substitute exhibits improved specifications in temperature coefficient and extended operating temperature range, these enhancements do not compromise compatibility with designs specified for the original part.

Parameter Comparison

Engineering Selection Recommendations

The ERA-2AED25R5X is the qualified substitute for the obsolete ERA-2HHD25R5X. Both parts maintain identical electrical specifications (25.5 Ohms ±0.5%, 0.063W) and mechanical compatibility (0402 package). The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

The ERA-2AED25R5X incorporates AEC-Q200 automotive qualification, which does not restrict its use in non-automotive applications. The improved temperature coefficient (±25ppm/°C versus ±50ppm/°C) and extended operating temperature range (-55°C ~ 155°C versus -55°C ~ 125°C) represent performance enhancements that maintain backward compatibility with the original design specification.

Both parts carry ROHS3 compliance and MSL 1 rating, confirming equivalent environmental and handling requirements.

Frequently Asked Questions (FAQ)

Q: Can ERA-2AED25R5X be used as a direct replacement for ERA-2HHD25R5X in existing designs?

A: Yes. The substitute part matches all critical parameters: resistance value, tolerance, power rating, package type, and composition. Electrical and mechanical compatibility is confirmed.

Q: What is the significance of the AEC-Q200 rating on the substitute part?

A: AEC-Q200 is an automotive qualification standard. This certification does not restrict use in non-automotive applications and indicates enhanced reliability testing and quality assurance.

Q: Are there differences in temperature performance between the two parts?

A: The substitute part exhibits a lower temperature coefficient (±25ppm/°C versus ±50ppm/°C) and supports operation to 155°C versus 125°C. These represent performance improvements that do not affect compatibility with designs specified for the original part.

Q: Is the 0402 package footprint identical between both parts?

A: Yes. Both parts use the 0402 (1005 Metric) package with identical dimensions (0.039" L x 0.020" W, 1.00mm x 0.50mm) and maximum seated height (0.016", 0.40mm). PCB layout and assembly processes require no modification.

Q: What is the current availability status of these parts?

A: The ERA-2HHD25R5X is obsolete with 1117 pieces in stock. The ERA-2AED25R5X is in active production with 745 pieces currently available, providing assured long-term supply.