Equivalent & Substitute Parts for RT0805FRE0778R7L

Part Overview

The RT0805FRE0778R7L is a 78.7 Ohm ±1% thin film chip resistor in 0805 (2012 Metric) package manufactured by YAGEO. This component is actively produced and widely used in precision analog circuits requiring stable resistance values across the operating temperature range of -55°C to 155°C. Substitute parts are identified based on matching resistance value, package form factor, and electrical performance within acceptable tolerance and power rating parameters.

Substiute Parts

RT0805FRE0778R7L

YAGEOIn Stock: 952RT0805FRE0778R7L Datasheet

Current PartRFQ

1-2176091-4

TE Connectivity Passive ProductIn Stock: 22371-2176091-4 Datasheet

DirectRFQ

ERA-6AEB78R7V

Panasonic Electronic ComponentsIn Stock: 8094ERA-6AEB78R7V Datasheet

UpgradeRFQ

ERA-6AED78R7V

Panasonic Electronic ComponentsIn Stock: 1879ERA-6AED78R7V Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT0805FRE0778R7L is determined by the following criteria:

Critical Parameters (Must Match):

• Resistance value: 78.7 Ohms
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Operating temperature range: -55°C to 155°C minimum

Allowable Variations:

• Tolerance: Equal to or tighter than ±1%
• Power rating: Equal to or greater than 0.125W
• Temperature coefficient: Equal to or lower absolute value
• RoHS and MSL compliance: Must maintain ROHS3 and MSL 1 status

Three substitute parts meet these criteria:

1. 1-2176091-4 (TE Connectivity) – Direct substitute with improved tolerance (±0.1%) and higher power rating (0.25W)
2. ERA-6AEB78R7V (Panasonic) – Upgrade substitute with tighter tolerance (±0.1%), automotive AEC-Q200 qualification, and lower temperature coefficient (±25ppm/°C)
3. ERA-6AED78R7V (Panasonic) – Upgrade substitute with automotive AEC-Q200 qualification and lower temperature coefficient (±25ppm/°C), tolerance ±0.5%

Parameter Comparison

Engineering Selection Recommendations

RT0805FRE0778R7L (YAGEO) – Standard industrial-grade thin film resistor. Suitable for general-purpose applications where ±1% tolerance and ±50ppm/°C temperature coefficient are acceptable. ROHS3 compliant with unlimited moisture sensitivity rating.

1-2176091-4 (TE Connectivity) – Direct substitute offering improved tolerance (±0.1%) and higher power dissipation capability (0.25W vs. 0.125W). Lower temperature coefficient (±25ppm/°C) provides better stability. Recommended for applications requiring enhanced precision without automotive qualification requirements. ROHS3 compliant.

ERA-6AEB78R7V (Panasonic) – Upgrade substitute with tightest tolerance specification (±0.1%) and automotive AEC-Q200 qualification. Maintains original 0.125W power rating with improved temperature coefficient (±25ppm/°C). Recommended for automotive and high-reliability applications where precision and qualification status are required. ROHS3 compliant.

ERA-6AED78R7V (Panasonic) – Upgrade substitute with automotive AEC-Q200 qualification and improved temperature coefficient (±25ppm/°C). Tolerance of ±0.5% is tighter than the original ±1%. Recommended for automotive applications where AEC-Q200 qualification is mandatory but ±0.1% tolerance is not required. ROHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can I use 1-2176091-4 as a direct replacement for RT0805FRE0778R7L?

A: Yes. The 1-2176091-4 meets all critical substitution criteria: identical 78.7 Ohm resistance, 0805 package, thin film composition, and -55°C to 155°C operating range. The ±0.1% tolerance is tighter than the original ±1%, and the 0.25W power rating exceeds the 0.125W requirement. The lower temperature coefficient (±25ppm/°C) provides improved stability.

Q: What is the difference between ERA-6AEB78R7V and ERA-6AED78R7V?

A: Both are Panasonic ERA-6A series resistors with AEC-Q200 automotive qualification. The primary difference is tolerance: ERA-6AEB78R7V offers ±0.1% tolerance, while ERA-6AED78R7V offers ±0.5% tolerance. Both share the same ±25ppm/°C temperature coefficient and 0.125W power rating. Select ERA-6AEB78R7V for applications requiring tighter tolerance control.

Q: Are the Panasonic ERA-6A parts suitable for automotive applications?

A: Yes. Both ERA-6AEB78R7V and ERA-6AED78R7V carry AEC-Q200 automotive qualification, making them suitable for automotive-grade applications. The original RT0805FRE0778R7L does not have automotive qualification.

Q: Will the higher power rating of 1-2176091-4 affect circuit performance?

A: No. The 0.25W power rating of 1-2176091-4 is a capability specification. It does not change the resistor's electrical behavior in the circuit. The actual power dissipation is determined by the circuit current and voltage, not the component's rated capacity.

Q: Can I use these substitutes interchangeably on the same PCB?

A: Yes. All substitute parts share the identical 0805 (2012 Metric) package dimensions and footprint. Physical PCB layout compatibility is maintained across all listed parts.

Q: What does the ±50ppm/°C temperature coefficient mean compared to ±25ppm/°C?

A: Temperature coefficient specifies resistance change per degree Celsius. The original RT0805FRE0778R7L exhibits ±50ppm/°C, meaning resistance can drift up to 50 parts per million per degree. The substitute parts with ±25ppm/°C offer half this drift rate, providing better stability across the -55°C to 155°C operating range.

Q: Are all parts ROHS3 compliant?

A: Yes. All listed parts—RT0805FRE0778R7L, 1-2176091-4, ERA-6AEB78R7V, and ERA-6AED78R7V—are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).