RT0603FRE0766R5L Equivalent & Substitute Parts

Part Overview

The RT0603FRE0766R5L is a 66.5 Ohm ±1% thin film chip resistor in 0603 (1608 Metric) package rated at 0.1W, manufactured by YAGEO. This component is actively produced and widely used in general-purpose electronic applications requiring precision resistive elements. Substitute parts may be required due to inventory constraints, design upgrades for improved tolerance specifications, or enhanced performance requirements in automotive or high-reliability applications.

Substiute Parts

RT0603FRE0766R5L

YAGEOIn Stock: 944RT0603FRE0766R5L Datasheet

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ERA-3AEB66R5V

Panasonic Electronic ComponentsIn Stock: 15970ERA-3AEB66R5V Datasheet

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RP73PF1J66R5BTDF

TE Connectivity Passive ProductIn Stock: 1375RP73PF1J66R5BTDF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RT0603FRE0766R5L are qualified based on the following criteria:

• Resistance Value: Exact match at 66.5 Ohms
• Package Type: Identical 0603 (1608 Metric) form factor
• Composition: Thin film construction
• Operating Temperature Range: Minimum -55°C to 155°C coverage
• Termination Count: 2 terminations
• RoHS Compliance: ROHS3 Compliant status

Tolerance and power rating may vary within acceptable substitution parameters. Tighter tolerance specifications (±0.1%) and higher power ratings (0.167W) represent upgrades that maintain full backward compatibility while offering enhanced performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

ERA-3AEB66R5V (Panasonic): This substitute offers improved tolerance specification (±0.1% versus ±1%) and lower temperature coefficient (±25ppm/°C versus ±50ppm/°C) while maintaining identical power rating and package dimensions. The component carries AEC-Q200 automotive qualification, making it suitable for applications requiring automotive-grade reliability. All compliance certifications match the main part.

RP73PF1J66R5BTDF (TE Connectivity): This substitute provides both tighter tolerance (±0.1%) and higher power rating (0.167W versus 0.1W) in the same 0603 package footprint. The elevated power rating offers additional thermal margin in applications approaching the original component's power dissipation limits. Temperature coefficient is equivalent to the Panasonic option at ±25ppm/°C. RoHS compliance is confirmed; REACH status is vendor-undefined.

Both substitutes are pin-compatible and footprint-compatible with the original RT0603FRE0766R5L, requiring no PCB layout modifications.

Frequently Asked Questions (FAQ)

Q: Can ERA-3AEB66R5V and RP73PF1J66R5BTDF be used interchangeably with RT0603FRE0766R5L?

A: Yes. All three components share identical resistance value (66.5 Ohms), package type (0603), composition (thin film), operating temperature range (-55°C to 155°C), and termination configuration (2 terminations). The substitutes are direct replacements from a mechanical and electrical standpoint.

Q: What is the primary difference between the two substitute parts?

A: ERA-3AEB66R5V maintains the original 0.1W power rating with AEC-Q200 automotive qualification. RP73PF1J66R5BTDF offers higher power rating at 0.167W without automotive qualification. Both provide superior tolerance (±0.1%) and lower temperature coefficient (±25ppm/°C) compared to the original ±1% tolerance and ±50ppm/°C coefficient.

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

A: No. All three components use identical 0603 (1608 Metric) package dimensions and footprints. Physical dimensions are equivalent: 0.063" L × 0.031" W (1.60mm × 0.80mm) with maximum seated height of 0.022" (0.55mm). Direct PCB footprint compatibility is confirmed.

Q: Which substitute should be selected for automotive applications?

A: ERA-3AEB66R5V carries AEC-Q200 automotive qualification and is the appropriate choice for automotive-grade designs. RP73PF1J66R5BTDF does not carry automotive qualification.

Q: Do all parts meet RoHS compliance requirements?

A: Yes. RT0603FRE0766R5L, ERA-3AEB66R5V, and RP73PF1J66R5BTDF are all ROHS3 Compliant. MSL rating is MSL 1 (Unlimited) for all three components.