RT1206FRE074K42L Equivalent & Substitute Parts

Part Overview

The RT1206FRE074K42L is a 4.42 kOhms ±1% thin film chip resistor in 1206 (3216 Metric) package format, rated for 0.25W (1/4W) power dissipation. Manufactured by YAGEO under the RT series, this component is actively produced and widely used in general-purpose electronic applications requiring standard tolerance resistive elements. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained, enabling design flexibility and supply chain optimization.

Substiute Parts

RT1206FRE074K42L

YAGEOIn Stock: 1021RT1206FRE074K42L Datasheet

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ERA-8AEB4421V

Panasonic Electronic ComponentsIn Stock: 4096ERA-8AEB4421V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT1206FRE074K42L is determined by the following criteria:

• Resistance Value: Must be 4.42 kOhms
• Package Format: Must be 1206 (3216 Metric) to ensure PCB footprint compatibility
• Power Rating: Must be ≥0.25W (1/4W)
• Composition: Thin film construction
• Operating Temperature Range: Must cover or exceed -55°C ~ 155°C
• Regulatory Compliance: RoHS3 compliance required

The ERA-8AEB4421V qualifies as a direct substitute based on these parameters. While it features improved tolerance (±0.1% versus ±1%) and lower temperature coefficient (±25ppm/°C versus ±50ppm/°C), these represent performance enhancements rather than deviations from the core electrical and mechanical requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the RT1206FRE074K42L and ERA-8AEB4421V are active production components with full RoHS3 compliance and unlimited moisture sensitivity rating. The ERA-8AEB4421V carries AEC-Q200 automotive qualification, making it suitable for applications requiring automotive-grade reliability. Selection between these parts should be based on application requirements: the RT1206FRE074K42L for general-purpose applications, and the ERA-8AEB4421V for designs requiring tighter tolerance control, lower temperature coefficient stability, or automotive compliance.

Frequently Asked Questions (FAQ)

Q: Can ERA-8AEB4421V replace RT1206FRE074K42L in existing designs?

A: Yes. Both components share identical resistance value (4.42 kOhms), power rating (0.25W), package format (1206), and operating temperature range (-55°C ~ 155°C). The ERA-8AEB4421V's improved tolerance and temperature coefficient represent performance enhancements compatible with the original specification.

Q: Are there physical footprint differences between these parts?

A: Both use the 1206 (3216 Metric) package. Dimensional variations exist (RT1206FRE074K42L: 3.10mm L × 1.60mm W; ERA-8AEB4421V: 3.20mm L × 1.60mm W), but these fall within standard 1206 PCB footprint tolerances and do not require layout modifications.

Q: What is the significance of the ±0.1% tolerance on the ERA-8AEB4421V?

A: The tighter tolerance reduces resistive value variation across the production batch. For applications sensitive to resistance accuracy, the ERA-8AEB4421V provides superior performance compared to the ±1% specification of the RT1206FRE074K42L.

Q: Does AEC-Q200 qualification on the ERA-8AEB4421V affect general-purpose applications?

A: No. AEC-Q200 qualification indicates automotive-grade reliability testing and is not restrictive for non-automotive use. The component remains fully compatible with general-purpose applications.

Q: Are both parts RoHS3 compliant?

A: Yes. Both RT1206FRE074K42L and ERA-8AEB4421V carry ROHS3 compliance certification and are suitable for applications requiring RoHS compliance.