RT1206FRE0737K4L Equivalent & Substitute Parts

Part Overview

The RT1206FRE0737K4L is a 37.4 kOhms ±1% thin film chip resistor in 1206 (3216 Metric) package format, rated for 0.25W power dissipation. Manufactured by YAGEO under the RT series, this component is actively produced and ROHS3 compliant. Finding equivalent and substitute parts becomes necessary when addressing inventory constraints, upgrading tolerance specifications, or requiring automotive-grade certifications for enhanced reliability in demanding applications.

Substiute Parts

RT1206FRE0737K4L

YAGEOIn Stock: 1061RT1206FRE0737K4L Datasheet

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RT1206DRE0737K4L

YAGEOIn Stock: 4591RT1206DRE0737K4L Datasheet

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ERA-8AEB3742V

Panasonic Electronic ComponentsIn Stock: 16816ERA-8AEB3742V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RT1206FRE0737K4L are qualified based on the following critical parameters that must remain constant or improve:

• Resistance Value: Must be exactly 37.4 kOhms
• Package / Case: Must be 1206 (3216 Metric) for PCB footprint compatibility
• Power Rating: Must be ≥0.25W
• Composition: Thin film technology for performance consistency
• Operating Temperature Range: Must cover -55°C ~ 155°C minimum
• RoHS Compliance: ROHS3 Compliant status required

Substitutes may improve tolerance specifications (lower tolerance values), temperature coefficient performance, or add automotive certifications without compromising the core electrical and mechanical requirements.

Parameter Comparison

Engineering Selection Recommendations

RT1206DRE0737K4L serves as a direct upgrade within the YAGEO RT series, offering improved tolerance specification (±0.5% versus ±1%) while maintaining identical package, power rating, and temperature range. Both components are active products with ROHS3 compliance and unlimited moisture sensitivity rating. Selection of this variant is appropriate when tighter tolerance requirements are specified in circuit design without requiring automotive qualification.

ERA-8AEB3742V from Panasonic Electronic Components provides the highest tolerance specification (±0.1%) and superior temperature coefficient performance (±25ppm/°C versus ±50ppm/°C). This component carries AEC-Q200 automotive qualification, making it suitable for applications requiring automotive-grade reliability and precision. Physical dimensions show minor variation (0.126" L x 0.063" W versus 0.122" L x 0.063" W), with maximum seated height of 0.028" compared to 0.026", which must be verified against PCB layout constraints. All three components maintain ROHS3 compliance and unlimited moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can RT1206DRE0737K4L be used as a direct replacement for RT1206FRE0737K4L?

A: Yes. Both components share identical resistance value (37.4 kOhms), package format (1206), power rating (0.25W), and operating temperature range (-55°C ~ 155°C). The RT1206DRE0737K4L offers improved tolerance (±0.5% versus ±1%), making it a compatible upgrade with no circuit redesign required.

Q: Is ERA-8AEB3742V compatible with the original RT1206FRE0737K4L footprint?

A: ERA-8AEB3742V uses the same 1206 (3216 Metric) package and will fit the same PCB footprint. However, verify maximum seated height (0.028" for ERA-8AEB3742V versus 0.026" for RT1206FRE0737K4L) against your PCB clearance specifications to ensure no mechanical interference with adjacent components or solder mask openings.

Q: What is the primary advantage of ERA-8AEB3742V over the YAGEO alternatives?

A: ERA-8AEB3742V combines the tightest tolerance specification (±0.1%), lowest temperature coefficient (±25ppm/°C), and AEC-Q200 automotive certification. These characteristics make it suitable for precision analog circuits and automotive applications requiring enhanced reliability and temperature stability.

Q: Are all three parts ROHS3 compliant?

A: Yes. RT1206FRE0737K4L, RT1206DRE0737K4L, and ERA-8AEB3742V are all ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), meeting environmental and regulatory requirements for commercial and industrial applications.

Q: Can these parts be used interchangeably in high-precision applications?

A: Interchangeability depends on tolerance requirements. For applications requiring ±1% tolerance, all three parts are suitable. For circuits requiring ±0.5% or better tolerance, use RT1206DRE0737K4L or ERA-8AEB3742V. For precision analog circuits with stringent temperature stability requirements, ERA-8AEB3742V is the preferred selection due to its ±0.1% tolerance and ±25ppm/°C temperature coefficient.