RT1206FRE07549RL Equivalent & Substitute Parts

Part Overview

The RT1206FRE07549RL is a 549 Ohms ±1% thin film chip resistor manufactured by YAGEO in the 1206 (3216 Metric) package format. This surface mount device is rated for 0.25W (1/4W) power dissipation and operates across the temperature range of -55°C to 155°C. The component is ROHS3 compliant and carries an MSL rating of 1 (Unlimited), making it suitable for standard industrial and commercial applications. Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and optimize component selection based on specific performance requirements and availability.

Substiute Parts

RT1206FRE07549RL

YAGEOIn Stock: 830RT1206FRE07549RL Datasheet

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ERA-8AEB5490V

Panasonic Electronic ComponentsIn Stock: 6120ERA-8AEB5490V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RT1206FRE07549RL is determined by the following critical parameters:

• Resistance Value: Must be 549 Ohms
• Package Format: Must be 1206 (3216 Metric) to ensure mechanical and electrical compatibility with existing PCB layouts
• Power Rating: Must be 0.25W (1/4W) or higher
• Composition: Thin film construction maintains performance characteristics
• Operating Temperature Range: Must support -55°C to 155°C minimum
• Compliance: RoHS3 compliance and MSL 1 rating required

The ERA-8AEB5490V qualifies as a direct substitute based on these parameters. While it offers enhanced tolerance (±0.1% versus ±1%) and improved temperature coefficient (±25ppm/°C versus ±50ppm/°C), these represent performance upgrades rather than deviations from the core substitution criteria.

Parameter Comparison

Engineering Selection Recommendations

Both the RT1206FRE07549RL and ERA-8AEB5490V are active products with full RoHS3 compliance and unlimited moisture sensitivity ratings. The ERA-8AEB5490V carries AEC-Q200 automotive qualification, which indicates enhanced reliability screening and stricter manufacturing controls. Selection between these components should be based on application requirements: the RT1206FRE07549RL is suitable for general industrial applications, while the ERA-8AEB5490V is appropriate for automotive and high-reliability applications where tighter tolerance and lower temperature coefficient are beneficial.

Frequently Asked Questions (FAQ)

Q: Can the ERA-8AEB5490V replace the RT1206FRE07549RL in existing designs?

A: Yes. Both components share identical resistance values, power ratings, package formats, and operating temperature ranges. The ERA-8AEB5490V offers superior tolerance and temperature coefficient performance, making it a direct mechanical and electrical substitute.

Q: What is the significance of the ±0.1% tolerance in the ERA-8AEB5490V compared to ±1% in the RT1206FRE07549RL?

A: The ERA-8AEB5490V maintains tighter resistance tolerance, resulting in more precise resistance values across production batches. This is advantageous in precision analog circuits, measurement equipment, and applications where component matching is critical.

Q: Are there physical dimension differences between these parts?

A: Minor dimensional variations exist. The RT1206FRE07549RL measures 0.122" L × 0.063" W (3.10mm × 1.60mm) with a maximum seated height of 0.026" (0.65mm). The ERA-8AEB5490V measures 0.126" L × 0.063" W (3.20mm × 1.60mm) with a maximum seated height of 0.028" (0.70mm). Both fit the 1206 (3216 Metric) package specification and are compatible with standard PCB layouts.

Q: What does AEC-Q200 qualification mean for the ERA-8AEB5490V?

A: AEC-Q200 is an automotive industry standard that specifies reliability and quality requirements for passive components. Components meeting this standard undergo enhanced testing and screening, making them suitable for automotive and mission-critical applications.

Q: Are both components RoHS3 compliant?

A: Yes. Both the RT1206FRE07549RL and ERA-8AEB5490V are ROHS3 compliant and carry MSL 1 (Unlimited) ratings, meeting environmental and regulatory requirements for industrial and commercial use.