ERA-1ARB3740C Equivalent & Substitute Parts

Part Overview

The ERA-1ARB3740C is a 374 Ohm ±0.1% thin film chip resistor in 0201 package format, rated at 0.05W (1/20W) power dissipation. Manufactured by Panasonic Electronic Components as part of the ERA-1A series, this component is classified as obsolete. Due to its obsolete status, identifying equivalent substitute parts with matching electrical and mechanical specifications is essential for design continuity and procurement planning.

Substiute Parts

ERA-1ARB3740C

Panasonic Electronic ComponentsIn Stock: 789ERA-1ARB3740C Datasheet

Current PartRFQ

ERA-1AEB3740C

Panasonic Electronic ComponentsIn Stock: 801ERA-1AEB3740C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ERA-1ARB3740C is determined by strict equivalence across the following critical parameters:

• Resistance value: 374 Ohms (exact match required)
• Tolerance: ±0.1% (precision specification)
• Power rating: 0.05W minimum
• Package format: 0201 (0603 Metric)
• Composition: Thin film construction
• Operating temperature range: -55°C to 155°C minimum
• RoHS3 compliance

The ERA-1AEB3740C meets all substitution criteria. Both parts share identical resistance, tolerance, power rating, package, and operating temperature specifications. The primary difference is the temperature coefficient (±10ppm/°C vs. ±25ppm/°C) and product status (obsolete vs. active).

Parameter Comparison

Engineering Selection Recommendations

The ERA-1AEB3740C is a direct functional equivalent to the ERA-1ARB3740C. Both components satisfy identical electrical specifications: 374 Ohm resistance at ±0.1% tolerance, 0.05W power rating, and thin film construction in 0201 package format. Both maintain full compliance with ROHS3 standards and operate across the -55°C to 155°C temperature range.

The ERA-1AEB3740C is preferred for new designs and procurement due to its active product status. The obsolete ERA-1ARB3740C should be replaced with the ERA-1AEB3740C in existing designs where component refresh or restocking is required. The temperature coefficient difference (±10ppm/°C vs. ±25ppm/°C) is the only electrical distinction; applications requiring the tighter ±10ppm/°C specification should evaluate circuit-level impact before substitution.

Frequently Asked Questions (FAQ)

Q: Can ERA-1AEB3740C replace ERA-1ARB3740C in existing designs?

A: Yes. Both components share identical resistance (374 Ohms), tolerance (±0.1%), power rating (0.05W), package format (0201), and operating temperature range (-55°C to 155°C). The ERA-1AEB3740C is the active equivalent.

Q: What is the difference between these two parts?

A: The primary differences are product status (obsolete vs. active) and temperature coefficient (±10ppm/°C vs. ±25ppm/°C). All other electrical and mechanical parameters are identical.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.024" L x 0.012" W (0.60mm x 0.30mm) with a maximum seated height of 0.010" (0.26mm). They are mechanically interchangeable in 0201 footprints.

Q: Do both parts meet RoHS compliance?

A: Yes. Both ERA-1ARB3740C and ERA-1AEB3740C are ROHS3 compliant with Moisture Sensitivity Level 1 (unlimited shelf life).

Q: Which part should be specified for new designs?

A: The ERA-1AEB3740C should be specified for new designs due to its active product status and current availability.