RT0402FRE0712R7L Equivalent & Substitute Parts

Part Overview

The RT0402FRE0712R7L is a 12.7 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 operates across the temperature range of -55°C to 155°C. The part maintains Active product status and is ROHS3 compliant with MSL Level 1 rating, making it suitable for high-reliability applications requiring stable resistive elements in compact form factors.

Identifying equivalent and substitute parts is necessary when the primary part experiences supply constraints, inventory limitations, or when design requirements call for enhanced performance characteristics such as improved tolerance specifications.

Substiute Parts

RT0402FRE0712R7L

YAGEOIn Stock: 906RT0402FRE0712R7L Datasheet

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CPF0402B12R7E1

TE Connectivity Passive ProductIn Stock: 2190CPF0402B12R7E1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT0402FRE0712R7L is determined by strict adherence to the following critical parameters:

• Resistance Value: Must be exactly 12.7 Ohms
• Package Format: Must be 0402 (1005 Metric) to ensure PCB footprint compatibility
• Power Rating: Must be rated at minimum 0.063W (1/16W)
• Composition: Must be thin film construction
• Operating Temperature Range: Must support -55°C to 155°C minimum
• Compliance: Must maintain ROHS3 compliance and MSL Level 1 rating

The CPF0402B12R7E1 qualifies as a direct substitute because it matches all mandatory parameters while offering enhanced tolerance (±0.1% versus ±1%) and improved temperature coefficient (±25ppm/°C versus ±50ppm/°C).

Parameter Comparison

Engineering Selection Recommendations

Both the RT0402FRE0712R7L and CPF0402B12R7E1 maintain Active product status and satisfy ROHS3 compliance requirements. The CPF0402B12R7E1 represents an upgrade path due to its superior tolerance specification (±0.1% versus ±1%) and lower temperature coefficient (±25ppm/°C versus ±50ppm/°C), which provides enhanced stability in precision circuit applications. Both components carry MSL Level 1 rating, indicating no moisture sensitivity constraints during storage and handling.

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 within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the CPF0402B12R7E1 be used as a direct replacement for the RT0402FRE0712R7L?

A: Yes. Both components share identical resistance values, package formats, power ratings, and operating temperature ranges. The CPF0402B12R7E1 offers improved tolerance and temperature coefficient specifications, making it suitable for direct substitution in all applications where the RT0402FRE0712R7L is specified.

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

A: No. Both components use the identical 0402 (1005 Metric) package with matching footprint dimensions (0.039" L x 0.020" W) and maximum seated height (0.014"). PCB layouts require no modification.

Q: What is the significance of the tolerance difference between ±1% and ±0.1%?

A: Tolerance defines the acceptable resistance deviation from the nominal 12.7 Ohm value. The ±0.1% specification of the CPF0402B12R7E1 provides tighter resistance accuracy, beneficial in precision analog circuits, signal conditioning, and measurement applications where component accuracy directly impacts circuit performance.

Q: Do both parts meet the same compliance and environmental standards?

A: Yes. Both components are ROHS3 compliant, carry MSL Level 1 rating, and operate across the identical temperature range of -55°C to 155°C. Compliance certifications and environmental ratings are equivalent.

Q: What does the temperature coefficient specification indicate?

A: Temperature coefficient (ppm/°C) quantifies how resistance changes with temperature variations. The CPF0402B12R7E1 at ±25ppm/°C exhibits half the temperature sensitivity of the RT0402FRE0712R7L at ±50ppm/°C, resulting in more stable resistance performance across the full operating temperature range.