RT0402FRE079K1L Equivalent & Substitute Parts

Part Overview

The RT0402FRE079K1L is a 9.1 kOhms ±1% thin film chip resistor in 0402 (1005 Metric) package manufactured by YAGEO. This surface-mount device is rated for 0.063W (1/16W) power dissipation with operating temperature range of -55°C to 155°C. The part is ROHS3 compliant and carries MSL 1 (Unlimited) moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category.

Key Parameters

Parameter	Value
Resistance	9.1 kOhms
Tolerance	±1%
Power Rating	0.063W (1/16W)
Package	0402 (1005 Metric)
Composition	Thin Film
Operating Temperature	-55°C to 155°C
Temperature Coefficient	±50ppm/°C
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RT0402FRE079K1L are qualified based on the following criteria:

Mandatory Matching Parameters:

Resistance value: 9.1 kOhms
Package type: 0402 (1005 Metric)
Composition: Thin Film
Power rating: 0.063W (1/16W)
Termination count: 2
RoHS compliance: ROHS3 Compliant
MSL rating: 1 (Unlimited)

Allowed Variation Parameters:

Tolerance: ±1% or tighter (±0.5%, ±0.1%)
Temperature coefficient: ±50ppm/°C or better (±25ppm/°C)
Operating temperature range: -55°C to 155°C or equivalent
Manufacturer: Different manufacturers permitted
Series designation: Different series permitted
Additional features: Automotive AEC-Q200, Anti-Sulfur certifications permitted

Substitutes are grouped by tolerance specification, as this directly impacts circuit performance and design margin requirements.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Op Temp Range	Features
RT0402FRE079K1L	YAGEO	9.1 kΩ	±1%	0.063	±50	-55 to 155°C	—
RT0402BRD079K1L	YAGEO	9.1 kΩ	±0.1%	0.063	±25	-55 to 155°C	—
RT0402DRE079K1L	YAGEO	9.1 kΩ	±0.5%	0.063	±50	-55 to 155°C	—
CPF0402B9K1E1	TE Connectivity	9.1 kΩ	±0.1%	0.063	±25	-55 to 155°C	—
ERA-2AEB912X	Panasonic	9.1 kΩ	±0.1%	0.063	±25	-55 to 155°C	Automotive AEC-Q200
ERA-2AED912X	Panasonic	9.1 kΩ	±0.5%	0.063	±25	-55 to 155°C	Automotive AEC-Q200
RG1005P-912-B-T5	Susumu	9.1 kΩ	±0.1%	0.063	±25	-55 to 155°C	Anti-Sulfur, AEC-Q200
RG1005P-912-D-T10	Susumu	9.1 kΩ	±0.5%	0.063	±25	-55 to 155°C	Anti-Sulfur, AEC-Q200
RR0510P-912-D	Susumu	9.1 kΩ	±0.5%	0.063	±25	-55 to 125°C	—

Engineering Selection Recommendations

For Standard Applications (±1% tolerance acceptable): RT0402FRE079K1L remains the primary selection. All listed substitutes provide equal or superior tolerance specifications and are ROHS3 compliant with MSL 1 rating.

For Improved Tolerance Requirements (±0.5% or better): RT0402DRE079K1L, ERA-2AED912X, RG1005P-912-D-T10, and RR0510P-912-D provide ±0.5% tolerance. RT0402BRD079K1L, CPF0402B9K1E1, ERA-2AEB912X, and RG1005P-912-B-T5 provide ±0.1% tolerance with improved temperature coefficient (±25ppm/°C).

For Automotive Applications: ERA-2AEB912X, ERA-2AED912X, RG1005P-912-B-T5, and RG1005P-912-D-T10 carry Automotive AEC-Q200 certification. RG1005P series additionally includes Anti-Sulfur feature.

Temperature Range Consideration: RR0510P-912-D operates to 125°C maximum; all other substitutes support full -55°C to 155°C range matching the original specification.

Inventory Availability: ERA-2AEB912X (51,877 pcs), RG1005P-912-B-T5 (32,904 pcs), and RR0510P-912-D (29,808 pcs) show highest stock levels.

Frequently Asked Questions (FAQ)

Q: Can RT0402BRD079K1L replace RT0402FRE079K1L in any circuit? A: Yes. RT0402BRD079K1L provides tighter tolerance (±0.1% vs ±1%) and improved temperature coefficient (±25ppm/°C vs ±50ppm/°C), making it a direct upgrade. The 0402 package dimensions and electrical ratings are identical.

Q: What is the difference between ERA-2AEB912X and ERA-2AED912X? A: Both are Panasonic Automotive AEC-Q200 qualified 9.1 kOhms resistors in 0402 package. ERA-2AEB912X specifies ±0.1% tolerance; ERA-2AED912X specifies ±0.5% tolerance. Temperature coefficient is ±25ppm/°C for both.

Q: Why does RR0510P-912-D have a lower maximum operating temperature? A: RR0510P-912-D is rated to 125°C maximum, compared to 155°C for other substitutes. This limits its use in high-temperature applications. Verify application requirements before selection.

Q: Are Susumu RG1005P series parts compatible with standard 0402 footprints? A: Yes. RG1005P-912-B-T5 and RG1005P-912-D-T10 use 0402 (1005 Metric) package with identical footprint dimensions. Anti-Sulfur and AEC-Q200 features do not affect mechanical compatibility.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity? A: MSL 1 indicates the component has unlimited shelf life without moisture bake-out requirements. All listed parts carry MSL 1 rating, ensuring consistent handling and storage procedures.

Q: Can I use a ±0.1% tolerance part where ±1% is specified? A: Yes. Tighter tolerance provides superior performance margin. However, verify that circuit design does not depend on the original ±1% tolerance band for intended functionality.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message