RT0402FRE0742R2L Equivalent & Substitute Parts

Part Overview

The RT0402FRE0742R2L is a 42.2 Ohm thin film chip resistor manufactured by YAGEO in the 0402 (1005 Metric) package format. This component is rated at 1/16W (0.063W) with ±1% tolerance and is designed for surface mount applications requiring precision resistive elements. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package class and operating parameters.

Substiute Parts

RT0402FRE0742R2L

YAGEOIn Stock: 1158RT0402FRE0742R2L Datasheet

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CPF0402B42R2E1

TE Connectivity Passive ProductIn Stock: 3734CPF0402B42R2E1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT0402FRE0742R2L is determined by the following critical parameters:

• Resistance value must equal 42.2 Ohms
• Package format must be 0402 (1005 Metric)
• Composition must be thin film
• Operating temperature range must encompass -55°C ~ 155°C
• Power rating must be 0.063W (1/16W) or greater
• RoHS3 compliance is required
• Tolerance may be equal to or tighter than ±1%

The CPF0402B42R2E1 meets all substitution criteria with improved tolerance specification (±0.1% versus ±1%) and enhanced temperature coefficient performance (±25ppm/°C versus ±50ppm/°C), while maintaining identical package geometry, resistance value, and power rating.

Parameter Comparison

Engineering Selection Recommendations

Both the RT0402FRE0742R2L and CPF0402B42R2E1 maintain Active product status with full RoHS3 compliance and identical moisture sensitivity ratings. The CPF0402B42R2E1 offers tighter tolerance (±0.1% versus ±1%) and superior temperature coefficient stability (±25ppm/°C versus ±50ppm/°C) while maintaining mechanical and electrical compatibility. Selection between these parts should be based on application-specific tolerance and temperature stability requirements within the specified operating range of -55°C ~ 155°C.

Frequently Asked Questions (FAQ)

Q: Can CPF0402B42R2E1 be used as a direct replacement for RT0402FRE0742R2L?

A: Yes. Both parts share identical resistance value (42.2 Ohms), power rating (0.063W), package format (0402), and operating temperature range (-55°C ~ 155°C). Physical dimensions and termination count are identical, enabling direct PCB substitution.

Q: What are the key differences between these parts?

A: The primary differences are tolerance specification (±0.1% versus ±1%) and temperature coefficient (±25ppm/°C versus ±50ppm/°C). The CPF0402B42R2E1 provides enhanced precision and thermal stability.

Q: Are there any compliance or certification differences?

A: Both parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Both maintain Active product status.

Q: Will the substitute part fit the same PCB footprint?

A: Yes. Both parts use the 0402 (1005 Metric) package with identical dimensions: 0.039" L x 0.020" W (1.00mm x 0.50mm) and maximum seated height of 0.014" (0.35mm).

Q: Can the substitute part handle the same power dissipation?

A: Yes. Both parts are rated at 0.063W (1/16W) power dissipation and operate across the identical temperature range of -55°C ~ 155°C.