RT0402FRE0727R4L Equivalent & Substitute Parts

Part Overview

The RT0402FRE0727R4L is a 27.4 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 considerations, inventory availability, or specific performance requirements in production environments.

Substiute Parts

RT0402FRE0727R4L

YAGEOIn Stock: 787RT0402FRE0727R4L Datasheet

Current PartRFQ

CPF0402B27R4E1

TE Connectivity Passive ProductIn Stock: 1248CPF0402B27R4E1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RT0402FRE0727R4L is based on the following critical parameters that must remain constant or improve:

• Resistance Value: 27.4 Ohms (exact match required)
• Package Type: 0402 (1005 Metric) form factor (mechanical and electrical compatibility)
• Power Rating: 0.063W minimum (equal or higher acceptable)
• Composition: Thin film technology (ensures stability and temperature performance)
• Operating Temperature Range: -55°C to 155°C minimum (equal or wider range acceptable)
• Compliance: ROHS3 and EAR99 classification maintained

The CPF0402B27R4E1 qualifies as a direct substitute because it maintains all critical parameters while offering improved tolerance (±0.1% versus ±1%) and superior temperature coefficient (±25ppm/°C versus ±50ppm/°C).

Parameter Comparison

Engineering Selection Recommendations

Both the RT0402FRE0727R4L and CPF0402B27R4E1 are active production components with full ROHS3 compliance and EAR99 export classification. The CPF0402B27R4E1 represents an upgrade path, offering tighter tolerance (±0.1% versus ±1%) and improved temperature stability (±25ppm/°C versus ±50ppm/°C) while maintaining identical mechanical form factor, power rating, and operating temperature range. Selection between these parts should be based on application-specific tolerance and stability requirements rather than functional compatibility, as both components are electrically and mechanically interchangeable in the 0402 package footprint.

Frequently Asked Questions (FAQ)

Q: Can CPF0402B27R4E1 be used as a direct replacement for RT0402FRE0727R4L?

A: Yes. Both components have identical resistance values (27.4 Ohms), power ratings (0.063W), package dimensions (0402/1005 Metric), and operating temperature ranges (-55°C to 155°C). The CPF0402B27R4E1 offers improved tolerance and temperature coefficient specifications.

Q: What are the key differences between these two parts?

A: The primary differences are tolerance (±0.1% versus ±1%) and temperature coefficient (±25ppm/°C versus ±50ppm/°C). The CPF0402B27R4E1 provides superior precision and thermal stability. All other electrical and mechanical parameters are equivalent.

Q: Are the physical dimensions identical?

A: Yes. Both components use the 0402 (1005 Metric) package with identical dimensions: 0.039" L × 0.020" W (1.00mm × 0.50mm) and maximum seated height of 0.014" (0.35mm). PCB footprints are interchangeable.

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 RT0402FRE0727R4L and CPF0402B27R4E1 are ROHS3 compliant and carry EAR99 export classification.