RT1206FRE0731R6L Equivalent & Substitute Parts

Part Overview

The RT1206FRE0731R6L is a 31.6 Ohm thin film chip resistor manufactured by YAGEO in the 1206 (3216 Metric) package format. This component is rated for 0.25W (1/4W) power dissipation 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 unlimited moisture sensitivity rating (MSL 1). Finding equivalent or substitute parts may be necessary due to inventory constraints, supply chain considerations, or application-specific performance requirements such as improved tolerance specifications.

Substiute Parts

RT1206FRE0731R6L

YAGEOIn Stock: 1111RT1206FRE0731R6L Datasheet

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RT1206BRD0731R6L

YAGEOIn Stock: 1069RT1206BRD0731R6L Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RT1206FRE0731R6L is determined by strict adherence to the following electrical and mechanical parameters:

• Resistance Value: Must be 31.6 Ohms (exact match required)
• Package Format: Must be 1206 (3216 Metric) for PCB footprint compatibility
• Power Rating: Must be 0.25W (1/4W) or higher
• Composition: Thin film construction maintains performance characteristics
• Operating Temperature Range: Must support -55°C to 155°C minimum
• Compliance: ROHS3 compliance and MSL 1 rating required

The RT1206BRD0731R6L qualifies as a direct substitute based on these parameters. While it offers improved tolerance (±0.1% versus ±1%) and lower temperature coefficient (±25ppm/°C versus ±50ppm/°C), these represent performance enhancements rather than deviations from the core substitution criteria.

Parameter Comparison

Engineering Selection Recommendations

Both the RT1206FRE0731R6L and RT1206BRD0731R6L are Active products from YAGEO with identical ROHS3 compliance and MSL 1 ratings. Selection between these parts should be based on application tolerance requirements. The RT1206BRD0731R6L provides superior tolerance specification (±0.1%) and improved temperature stability (±25ppm/°C), making it suitable for precision applications requiring tighter component matching. The RT1206FRE0731R6L remains appropriate for general-purpose applications where ±1% tolerance is acceptable. Both parts are suitable for direct substitution in 1206 package footprints without design modification.

Frequently Asked Questions (FAQ)

Q: Can RT1206BRD0731R6L replace RT1206FRE0731R6L in my circuit?

A: Yes. Both parts share identical resistance value (31.6 Ohms), power rating (0.25W), package format (1206), and operating temperature range (-55°C to 155°C). The substitute offers improved tolerance and temperature coefficient specifications.

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

A: No. Both parts use the identical 1206 (3216 Metric) package format with matching footprint dimensions (0.122" L x 0.063" W / 3.10mm x 1.60mm) and height (0.026" / 0.65mm maximum). Direct substitution requires no layout modifications.

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

A: Tolerance defines the acceptable resistance variation from the nominal 31.6 Ohm value. The ±1% specification allows variation of ±0.316 Ohms, while ±0.1% allows variation of ±0.0316 Ohms. Applications requiring precise resistance matching benefit from the tighter tolerance of the substitute part.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both RT1206FRE0731R6L and RT1206BRD0731R6L are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Both are REACH Unaffected and classified as EAR99 for export purposes.

Q: What does the temperature coefficient specification mean?

A: Temperature coefficient (±50ppm/°C for the main part, ±25ppm/°C for the substitute) indicates how much the resistance value changes per degree Celsius of temperature variation. Lower values indicate better stability across temperature extremes. The substitute provides superior thermal stability.