RT1206FRE0718RL Equivalent & Substitute Parts

Part Overview

The RT1206FRE0718RL is an 18 Ohms ±1% thin film chip resistor in 1206 (3216 Metric) package format, rated for 0.25W power dissipation. This component is actively manufactured by YAGEO and maintains ROHS3 compliance with unlimited moisture sensitivity rating. Substitute parts are identified when electrical parameters remain within acceptable tolerance ranges while maintaining identical mechanical compatibility and environmental specifications.

Substiute Parts

RT1206FRE0718RL

YAGEOIn Stock: 1039RT1206FRE0718RL Datasheet

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RT1206BRD0718RL

YAGEOIn Stock: 5815RT1206BRD0718RL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The RT1206BRD0718RL qualifies as a direct substitute based on the following criteria:

Matching Parameters:

• Resistance value: 18 Ohms (identical)
• Package format: 1206 (3216 Metric) (identical)
• Physical dimensions: 0.122" L x 0.063" W, 0.026" max height (identical)
• Power rating: 0.25W (identical)
• Composition: Thin Film (identical)
• Operating temperature range: -55°C to 155°C (identical)
• RoHS compliance: ROHS3 Compliant (identical)
• Moisture sensitivity: MSL 1 (Unlimited) (identical)
• Termination count: 2 (identical)

Tolerance Enhancement: The substitute part features ±0.1% tolerance compared to the main part's ±1% tolerance, representing improved precision without compromising compatibility. The tighter tolerance is a functional upgrade that does not restrict substitution in applications requiring the original specification.

Temperature Coefficient Improvement: The substitute exhibits ±25ppm/°C versus the main part's ±50ppm/°C, providing superior temperature stability while maintaining full electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both RT1206FRE0718RL and RT1206BRD0718RL maintain active product status with full ROHS3 compliance and identical environmental certifications. Selection between these parts depends on application tolerance requirements. The RT1206FRE0718RL serves applications where ±1% tolerance meets circuit specifications. The RT1206BRD0718RL provides enhanced precision for circuits requiring tighter tolerance control, with improved temperature coefficient performance. Both components are suitable for direct PCB placement without design modification due to identical package geometry and electrical ratings.

Frequently Asked Questions (FAQ)

Q: Can RT1206BRD0718RL replace RT1206FRE0718RL in existing designs?

A: Yes. Both components share identical package dimensions (1206), power rating (0.25W), resistance value (18 Ohms), and operating temperature range (-55°C to 155°C). The substitute part's improved tolerance (±0.1% versus ±1%) and temperature coefficient (±25ppm/°C versus ±50ppm/°C) do not create incompatibility.

Q: Are there mechanical compatibility concerns?

A: No. Both parts conform to 1206 (3216 Metric) package specifications with identical physical dimensions: 0.122" length, 0.063" width, and 0.026" maximum seated height. PCB footprints and assembly processes remain unchanged.

Q: Do compliance certifications differ between these parts?

A: No. Both components carry identical ROHS3 compliance status, MSL 1 (Unlimited) moisture sensitivity rating, and REACH unaffected designation.

Q: What determines substitution eligibility for 18 Ohm 1206 resistors?

A: Substitution requires matching resistance value (18 Ohms), identical package format (1206), equivalent or superior tolerance specification, compatible power rating (0.25W minimum), and matching operating temperature range (-55°C to 155°C). Composition type (Thin Film) must remain consistent.

Q: Is tolerance improvement a limiting factor for substitution?

A: No. Tighter tolerance specifications represent functional enhancement and do not restrict use in applications designed for the original part's tolerance range.