ERA-2HRB3740X Equivalent & Substitute Parts

Part Overview

The ERA-2HRB3740X is a 374 Ohm ±0.1% thin film chip resistor in 0402 (1005 Metric) package rated at 0.063W (1/16W) with a temperature coefficient of ±10ppm/°C. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design requirements and production continuity. The substitute part ERA-2ARB3740X provides functional equivalence with enhanced automotive qualification.

Substiute Parts

ERA-2HRB3740X

Panasonic Electronic ComponentsIn Stock: 794ERA-2HRB3740X Datasheet

Current PartRFQ

ERA-2ARB3740X

Panasonic Electronic ComponentsIn Stock: 10144ERA-2ARB3740X Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The ERA-2ARB3740X qualifies as a direct substitute based on the following critical parameters:

• Identical resistance value: 374 Ohms
• Identical tolerance: ±0.1%
• Identical power rating: 0.063W (1/16W)
• Identical composition: Thin Film
• Identical package: 0402 (1005 Metric)
• Identical temperature coefficient: ±10ppm/°C
• Identical termination count: 2
• Identical RoHS3 compliance and MSL rating

The ERA-2ARB3740X operates across an extended temperature range (-55°C to 155°C) compared to the main part (-55°C to 125°C) and includes AEC-Q200 automotive qualification. These enhancements do not restrict substitution; they represent functional improvements suitable for applications requiring the original specifications.

Parameter Comparison

Engineering Selection Recommendations

The ERA-2ARB3740X is the appropriate substitute for the obsolete ERA-2HRB3740X. Both components share identical electrical and mechanical specifications across all critical parameters: resistance, tolerance, power rating, composition, package dimensions, and temperature coefficient.

The ERA-2ARB3740X is currently in active production status, ensuring supply chain continuity. The component carries ROHS3 compliance and AEC-Q200 automotive qualification, meeting stringent reliability and environmental standards. The extended operating temperature range (-55°C to 155°C versus -55°C to 125°C) provides additional thermal margin without introducing incompatibility.

Selection of the ERA-2ARB3740X eliminates obsolescence risk while maintaining full functional equivalence with the original specification.

Frequently Asked Questions (FAQ)

Q: Can ERA-2ARB3740X directly replace ERA-2HRB3740X in existing designs?

A: Yes. Both components are identical in resistance (374 Ohms), tolerance (±0.1%), power rating (0.063W), composition (thin film), package (0402), and temperature coefficient (±10ppm/°C). Footprint and electrical performance are fully compatible.

Q: What is the difference between ERA-2HRB and ERA-2ARB series?

A: The ERA-2ARB series includes AEC-Q200 automotive qualification and operates across an extended temperature range (-55°C to 155°C). The ERA-2HRB series is standard industrial grade with a -55°C to 125°C operating range. Both series maintain identical core electrical specifications.

Q: Are there packaging differences between these parts?

A: Both components use 0402 (1005 Metric) package with identical dimensions (0.039" L x 0.020" W, 1.00mm x 0.50mm) and height (0.016" maximum, 0.40mm). Tape & Reel packaging is available for the ERA-2ARB3740X, supporting high-volume production requirements.

Q: Is the ERA-2ARB3740X suitable for automotive applications?

A: The ERA-2ARB3740X carries AEC-Q200 qualification, meeting automotive industry reliability standards. The ERA-2HRB3740X does not include this certification.

Q: What is the MSL rating for these components?

A: Both components carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.