Equivalent & Substitute Parts for RT0805FRE0778K7L

Part Overview

The RT0805FRE0778K7L is a 78.7 kOhms ±1% thin film chip resistor in 0805 (2012 Metric) package rated at 0.125W (1/8W). Manufactured by YAGEO and compliant with ROHS3, this component is actively produced and suitable for general-purpose applications requiring standard tolerance resistive elements. Substitute parts are identified to address inventory availability, enhanced tolerance specifications, automotive-grade requirements, or alternative manufacturer sourcing.

Key Parameters

Parameter	Value
Resistance	78.7 kOhms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thin Film
Operating Temperature Range	-55°C to 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Mandatory Matching Parameters:

Resistance value: 78.7 kOhms
Package / Case: 0805 (2012 Metric)
Composition: Thin Film
Operating Temperature Range: -55°C to 155°C
RoHS3 Compliance

Allowable Variations:

Tolerance: May be equal to or tighter (lower) than ±1%
Power Rating: May be equal to or higher than 0.125W
Temperature Coefficient: May be equal to or lower than ±50ppm/°C
Manufacturer: Different manufacturers permitted if all mandatory parameters match

All substitute parts listed maintain identical resistance, package, and operating temperature specifications while meeting or exceeding the original part's tolerance and thermal performance characteristics.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power Rating	Temp Coeff	Package	RoHS Status	Special Features
RT0805FRE0778K7L	YAGEO	78.7 kOhms	±1%	0.125W	±50ppm/°C	0805	ROHS3	—
RT0805BRD0778K7L	YAGEO	78.7 kOhms	±0.1%	0.125W	±25ppm/°C	0805	ROHS3	Enhanced tolerance
RT0805DRD0778K7L	YAGEO	78.7 kOhms	±0.5%	0.125W	±25ppm/°C	0805	ROHS3	Intermediate tolerance
8-2176093-5	TE Connectivity	78.7 kOhms	±0.1%	0.25W	±25ppm/°C	0805	ROHS3	Higher power rating
ERA-6AEB7872V	Panasonic	78.7 kOhms	±0.1%	0.125W	±25ppm/°C	0805	ROHS3	AEC-Q200 Automotive
RG2012P-7872-B-T5	Susumu	78.7 kOhms	±0.1%	0.125W	±25ppm/°C	0805	ROHS3	Anti-Sulfur, AEC-Q200

Engineering Selection Recommendations

YAGEO RT0805BRD0778K7L — Direct upgrade within the same manufacturer series. Provides tighter tolerance (±0.1% vs ±1%) and improved temperature coefficient (±25ppm/°C vs ±50ppm/°C) while maintaining identical power rating and package. Recommended for applications requiring enhanced precision without changing supplier relationships.

YAGEO RT0805DRD0778K7L — Intermediate tolerance option (±0.5%) with improved temperature stability. Suitable for applications where standard ±1% tolerance is marginal but full ±0.1% specification is not required.

TE Connectivity 8-2176093-5 — Cross-manufacturer substitute with higher power dissipation capability (0.25W vs 0.125W). Maintains ±0.1% tolerance and ±25ppm/°C temperature coefficient. Appropriate for designs requiring thermal margin or where TE Connectivity is the preferred supplier.

Panasonic ERA-6AEB7872V — AEC-Q200 automotive-grade component with ±0.1% tolerance. Required for automotive applications or systems subject to automotive qualification standards. Maintains identical electrical specifications to the original part.

Susumu RG2012P-7872-B-T5 — AEC-Q200 automotive-grade with anti-sulfur coating. Specified for harsh environments or automotive applications where sulfur resistance is a design requirement. Provides both enhanced tolerance and environmental protection.

Frequently Asked Questions (FAQ)

Q: Can RT0805BRD0778K7L be used as a direct replacement for RT0805FRE0778K7L?

A: Yes. Both parts share identical resistance (78.7 kOhms), package (0805), power rating (0.125W), and operating temperature range (-55°C to 155°C). RT0805BRD0778K7L provides superior tolerance (±0.1% vs ±1%) and lower temperature coefficient (±25ppm/°C vs ±50ppm/°C), making it a compatible upgrade.

Q: What is the difference between the YAGEO variants (FRE, BRD, DRD)?

A: The three YAGEO parts differ in tolerance specification: FRE is ±1%, DRD is ±0.5%, and BRD is ±0.1%. All maintain the same 0805 package, 0.125W power rating, and -55°C to 155°C operating range. Selection depends on circuit tolerance requirements.

Q: Can the TE Connectivity 8-2176093-5 be substituted if the original design specifies 0.125W?

A: Yes, provided the PCB layout and thermal design accommodate the slightly higher maximum seated height (0.026" vs 0.024"). The 0.25W rating provides additional thermal margin and does not degrade performance in applications rated for 0.125W.

Q: When should ERA-6AEB7872V or RG2012P-7872-B-T5 be selected?

A: These parts are required for automotive applications subject to AEC-Q200 qualification or for systems operating in environments where automotive-grade reliability is mandated. RG2012P-7872-B-T5 is additionally specified when anti-sulfur protection is a design requirement.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), matching the original RT0805FRE0778K7L specifications.

Q: Can substitute parts be mixed within a single assembly?

A: Yes, provided the circuit design permits tolerance variation across the resistor network. For precision analog circuits, consistent tolerance across all resistors of the same value is recommended.

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