RT0402FRE0730R9L Equivalent & Substitute Parts

Part Overview

The RT0402FRE0730R9L is a 30.9 Ohm ±1% thin film chip resistor in 0402 (1005 Metric) package manufactured by YAGEO. This component is actively produced and widely used in precision analog circuits, signal conditioning, and measurement applications where stable resistance values are required. Finding equivalent or substitute parts may be necessary due to supply chain constraints, inventory availability, or specific performance requirements in production environments.

Substiute Parts

RT0402FRE0730R9L

YAGEOIn Stock: 892RT0402FRE0730R9L Datasheet

Current PartRFQ

CPF0402B30R9E1

TE Connectivity Passive ProductIn Stock: 2677CPF0402B30R9E1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the RT0402FRE0730R9L is determined by the following critical parameters:

• Resistance Value: Must be 30.9 Ohms
• Package Type: Must be 0402 (1005 Metric)
• Composition: Thin film construction
• Power Rating: 0.063W (1/16W) minimum
• Operating Temperature Range: Must cover -55°C to 155°C
• Compliance: ROHS3 compliance required

The CPF0402B30R9E1 from TE Connectivity Passive Product meets all these criteria and qualifies as a direct substitute. This part maintains identical resistance, package, power rating, and temperature range specifications while offering improved tolerance performance.

Parameter Comparison

Engineering Selection Recommendations

Both the RT0402FRE0730R9L and CPF0402B30R9E1 are active production components with full ROHS3 compliance and EAR99 export classification. The CPF0402B30R9E1 offers enhanced performance characteristics with ±0.1% tolerance and ±25ppm/°C temperature coefficient compared to the ±1% tolerance and ±50ppm/°C of the original part. Selection between these parts should be based on application-specific tolerance and temperature stability requirements. Both components maintain identical mechanical compatibility and thermal operating range, ensuring direct substitution in PCB layouts without design modification.

Frequently Asked Questions (FAQ)

Q: Can the CPF0402B30R9E1 be used as a direct replacement for the RT0402FRE0730R9L?

A: Yes. Both parts share identical resistance value (30.9 Ohms), package type (0402), power rating (0.063W), and operating temperature range (-55°C to 155°C). The CPF0402B30R9E1 provides superior tolerance and temperature coefficient specifications.

Q: Are there any PCB layout considerations when substituting these parts?

A: No. Both components use the same 0402 (1005 Metric) package with identical dimensions (1.00mm x 0.50mm) and maximum seated height (0.35mm). No PCB modifications are required.

Q: What is the difference in tolerance between these two parts?

A: The RT0402FRE0730R9L has ±1% tolerance, while the CPF0402B30R9E1 has ±0.1% tolerance. The substitute part provides tighter tolerance control for applications requiring higher precision.

Q: Do both parts have the same moisture sensitivity rating?

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

Q: Are both parts RoHS compliant?

A: Yes. Both the RT0402FRE0730R9L and CPF0402B30R9E1 are ROHS3 compliant and suitable for applications requiring environmental compliance.