RT1206FRE0742K2L Equivalent & Substitute Parts

Part Overview

The RT1206FRE0742K2L is a 42.2 kOhms ±1% thin film chip resistor manufactured by YAGEO in 1206 (3216 Metric) package format. This surface mount device is rated for 0.25W (1/4W) power dissipation and operates across the industrial temperature range of -55°C to 155°C. The component is ROHS3 compliant with MSL Level 1 rating, indicating unlimited moisture sensitivity protection. As an active product with 1035 units in stock, substitute parts may be required for design optimization, supply chain diversification, or performance enhancement in specific applications.

Substiute Parts

RT1206FRE0742K2L

YAGEOIn Stock: 1048RT1206FRE0742K2L Datasheet

Current PartRFQ

ERA-8AEB4222V

Panasonic Electronic ComponentsIn Stock: 5898ERA-8AEB4222V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT1206FRE0742K2L is determined by the following critical parameters:

• Resistance Value: Must be 42.2 kOhms
• Package Format: Must be 1206 (3216 Metric) for PCB footprint compatibility
• Power Rating: Must be 0.25W (1/4W) or higher
• Composition: Thin film construction required for performance consistency
• Operating Temperature Range: Must support -55°C to 155°C minimum
• Termination Count: Must have 2 terminations for standard SMD application

The ERA-8AEB4222V from Panasonic Electronic Components qualifies as a direct substitute. While it features improved tolerance (±0.1% versus ±1%) and lower temperature coefficient (±25ppm/°C versus ±50ppm/°C), it maintains identical resistance value, package format, power rating, and operating temperature range. The substitute meets all mandatory substitution criteria and adds automotive AEC-Q200 qualification.

Parameter Comparison

Engineering Selection Recommendations

Both the RT1206FRE0742K2L and ERA-8AEB4222V are active products with ROHS3 compliance and Level 1 MSL rating. The RT1206FRE0742K2L remains suitable for general industrial applications requiring standard tolerance specifications. The ERA-8AEB4222V provides enhanced performance characteristics through tighter tolerance (±0.1%) and reduced temperature coefficient (±25ppm/°C), with the addition of AEC-Q200 automotive qualification. Selection between these components should be based on application-specific requirements for tolerance precision and environmental qualification status.

Frequently Asked Questions (FAQ)

Q: Can ERA-8AEB4222V replace RT1206FRE0742K2L in existing designs?

A: Yes. Both components share identical resistance value (42.2 kOhms), package format (1206), power rating (0.25W), and operating temperature range (-55°C to 155°C). The ERA-8AEB4222V offers improved tolerance and temperature coefficient specifications.

Q: What are the physical dimension differences between these parts?

A: RT1206FRE0742K2L dimensions are 0.122" L × 0.063" W (3.10mm × 1.60mm) with 0.026" maximum seated height. ERA-8AEB4222V dimensions are 0.126" L × 0.063" W (3.20mm × 1.60mm) with 0.028" maximum seated height. Both fit standard 1206 footprints with minimal variation.

Q: Are both components suitable for automotive applications?

A: The RT1206FRE0742K2L is suitable for general industrial use. The ERA-8AEB4222V carries AEC-Q200 automotive qualification, making it the specified choice for automotive-grade designs.

Q: What is the significance of the tolerance difference?

A: The RT1206FRE0742K2L has ±1% tolerance, while ERA-8AEB4222V has ±0.1% tolerance. The tighter tolerance of the substitute provides greater precision in resistance value, beneficial for applications requiring strict circuit parameter control.

Q: Do both components have identical moisture sensitivity ratings?

A: Yes. Both components are rated MSL Level 1 (Unlimited), indicating no moisture sensitivity limitations during storage and handling.