RT0402FRE07243RL Equivalent & Substitute Parts

Part Overview

The RT0402FRE07243RL is a 243 Ohm ±1% thin film chip resistor in 0402 (1005 Metric) package manufactured by YAGEO. This surface mount device is rated for 0.063W (1/16W) power dissipation and operates across -55°C to 155°C. The part is ROHS3 compliant and carries MSL 1 (Unlimited) moisture sensitivity rating, making it suitable for general industrial and commercial applications.

Substitute parts are identified when they maintain identical electrical specifications (resistance value, power rating, package size) while offering improved tolerance, temperature coefficient performance, or enhanced reliability certifications such as automotive AEC-Q200 qualification.

Substiute Parts

RT0402FRE07243RL

YAGEOIn Stock: 835RT0402FRE07243RL Datasheet

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CPF0402B243RE1

TE Connectivity Passive ProductIn Stock: 1924CPF0402B243RE1 Datasheet

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ERA-2AEB2430X

Panasonic Electronic ComponentsIn Stock: 38649ERA-2AEB2430X Datasheet

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RG1005P-2430-B-T5

SusumuIn Stock: 6092RG1005P-2430-B-T5 Datasheet

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RN73C1E243RBTDF

TE Connectivity Passive ProductIn Stock: 973RN73C1E243RBTDF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RT0402FRE07243RL are qualified based on the following criteria:

• Identical Resistance Value: 243 Ohms
• Identical Power Rating: 0.063W (1/16W)
• Identical Package: 0402 (1005 Metric)
• Identical Composition: Thin Film
• Compatible Operating Temperature Range: -55°C to 155°C minimum
• Equivalent or Better Tolerance: ±1% or tighter
• Equivalent or Better RoHS Compliance: ROHS3 or equivalent

All substitute parts listed maintain these core electrical and mechanical parameters, ensuring direct functional compatibility. Differences in tolerance, temperature coefficient, and certifications represent performance enhancements or application-specific qualifications rather than functional deviations.

Parameter Comparison

Engineering Selection Recommendations

For Standard Industrial Applications: CPF0402B243RE1 (TE Connectivity) provides improved tolerance (±0.1% vs ±1%) and lower temperature coefficient (±25 ppm/°C vs ±50 ppm/°C) while maintaining identical package dimensions and RoHS3 compliance. This part is suitable for applications requiring tighter resistance accuracy without automotive qualification requirements.

For Automotive Applications: ERA-2AEB2430X (Panasonic) and RG1005P-2430-B-T5 (Susumu) both carry AEC-Q200 automotive qualification. RG1005P-2430-B-T5 adds anti-sulfur protection, making it preferable for harsh automotive environments. Both maintain ±0.1% tolerance and ±25 ppm/°C temperature coefficient.

For High-Stability Applications: RN73C1E243RBTDF (TE Connectivity) offers the lowest temperature coefficient (±10 ppm/°C) among all options, combined with ±0.1% tolerance and compact 0.35mm height. This part is optimal for precision analog circuits and temperature-sensitive applications.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical electrical performance within the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can RT0402FRE07243RL be directly replaced with CPF0402B243RE1?

A: Yes. Both parts share identical resistance (243 Ω), power rating (0.063W), package (0402), and operating temperature range (-55°C to 155°C). CPF0402B243RE1 offers tighter tolerance (±0.1% vs ±1%) and improved temperature stability (±25 ppm/°C vs ±50 ppm/°C), making it a direct upgrade with no circuit modifications required.

Q: What is the difference between ERA-2AEB2430X and RG1005P-2430-B-T5?

A: Both parts are AEC-Q200 automotive qualified with identical electrical specifications (243 Ω, ±0.1%, 0.063W). RG1005P-2430-B-T5 includes anti-sulfur protection, providing enhanced reliability in corrosive environments. ERA-2AEB2430X is suitable for standard automotive applications without sulfur exposure concerns.

Q: Does package height variation affect PCB layout?

A: RT0402FRE07243RL, CPF0402B243RE1, and RN73C1E243RBTDF have maximum seated height of 0.35mm. ERA-2AEB2430X and RG1005P-2430-B-T5 have maximum seated height of 0.40mm. This 0.05mm difference is negligible for standard PCB assembly and does not require layout modifications.

Q: Which substitute part offers the best temperature stability?

A: RN73C1E243RBTDF provides the lowest temperature coefficient at ±10 ppm/°C, compared to ±25 ppm/°C for other substitutes and ±50 ppm/°C for the original RT0402FRE07243RL. This makes it the optimal choice for precision applications requiring minimal resistance drift across temperature variations.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (CPF0402B243RE1, ERA-2AEB2430X, RG1005P-2430-B-T5, RN73C1E243RBTDF) carry ROHS3 compliance status, matching the original RT0402FRE07243RL and meeting environmental regulatory requirements.