ERA-2HEC73R2X Equivalent & Substitute Parts

Part Overview

The ERA-2HEC73R2X is a 73.2 Ohms ±0.25% 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 discontinued status, identifying equivalent substitute parts with matching electrical and mechanical specifications is essential for design continuity and procurement planning.

Substiute Parts

ERA-2HEC73R2X

Panasonic Electronic ComponentsIn Stock: 920ERA-2HEC73R2X Datasheet

Current PartRFQ

ERA-2AEC73R2X

Panasonic Electronic ComponentsIn Stock: 835ERA-2AEC73R2X Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERA-2HEC73R2X is determined by the following critical parameters:

• Resistance Value: 73.2 Ohms (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)

The ERA-2AEC73R2X qualifies as a direct substitute. It maintains identical electrical specifications (resistance, tolerance, power rating, temperature coefficient) and mechanical dimensions. The primary distinction is product status and operating temperature range extension, with the substitute rated to -55°C ~ 155°C compared to the original -55°C ~ 125°C.

Parameter Comparison

Engineering Selection Recommendations

The ERA-2AEC73R2X is a direct functional equivalent to the ERA-2HEC73R2X. Both components share identical electrical characteristics and mechanical footprints. The substitute part offers the advantage of active product status, ensuring continued availability and supply chain reliability. The extended operating temperature range (-55°C ~ 155°C versus -55°C ~ 125°C) provides additional thermal margin for applications requiring higher temperature performance. The AEC-Q200 automotive qualification of the substitute part does not restrict its use in non-automotive applications and represents an enhancement in component reliability standards.

Frequently Asked Questions (FAQ)

Q: Can ERA-2AEC73R2X be used as a direct replacement for ERA-2HEC73R2X?

A: Yes. Both parts are 73.2 Ohms ±0.25% thin film resistors in 0402 package with identical power ratings (0.063W), temperature coefficients (±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-2H series represents the standard thin film resistor line, while ERA-2A series incorporates automotive AEC-Q200 qualification. The ERA-2AEC73R2X extends the maximum operating temperature to 155°C compared to 125°C for the ERA-2HEC73R2X.

Q: Are there any PCB layout or assembly considerations when switching to ERA-2AEC73R2X?

A: No. Both components use identical 0402 (1005 Metric) packaging with matching footprints, dimensions, and termination specifications. No PCB redesign or assembly process modification is required.

Q: Does the AEC-Q200 rating on ERA-2AEC73R2X affect non-automotive applications?

A: No. AEC-Q200 certification indicates enhanced reliability testing and qualification standards. This certification does not restrict component use in non-automotive applications and represents a quality enhancement.

Q: What is the inventory status for these parts?

A: ERA-2HEC73R2X (obsolete) has 844 pieces in stock. ERA-2AEC73R2X (active) has 801 pieces in stock. The active status of ERA-2AEC73R2X ensures long-term availability.