Equivalent & Substitute Parts for RT0402FRE073K4L

Part Overview

The RT0402FRE073K4L is a 3.4 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 and operates across -55°C to 155°C. The part is ROHS3 compliant and carries MSL 1 (Unlimited) moisture sensitivity rating. Substitute parts are identified to provide alternatives with improved tolerance specifications, enhanced temperature coefficients, or automotive-grade certifications while maintaining core electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	3.4 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

Substitution eligibility is determined by the following criteria:

Resistance Value: Must be 3.4 kOhms
Package: Must be 0402 (1005 Metric)
Power Rating: Must be 0.063W (1/16W)
Composition: Must be Thin Film
Operating Temperature Range: Must support -55°C to 155°C minimum
Compliance: Must maintain ROHS3 compliance and MSL 1 rating

Substitute parts are grouped by tolerance specification, as this parameter defines the precision class while maintaining all other core electrical and mechanical characteristics. Temperature coefficient and manufacturer-specific features (such as automotive AEC-Q200 certification or anti-sulfur properties) are secondary differentiators that do not affect basic substitutability.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Op. Temp Range	Package	RoHS	MSL
RT0402FRE073K4L	YAGEO	3.4 kΩ	±1%	0.063	±50	-55 to 155°C	0402	ROHS3	1
RT0402BRD073K4L	YAGEO	3.4 kΩ	±0.1%	0.063	±25	-55 to 155°C	0402	ROHS3	1
RT0402BRE073K4L	YAGEO	3.4 kΩ	±0.1%	0.063	±50	-55 to 155°C	0402	ROHS3	1
RT0402DRE073K4L	YAGEO	3.4 kΩ	±0.5%	0.063	±50	-55 to 155°C	0402	ROHS3	1
CPF0402B3K4E1	TE Connectivity	3.4 kΩ	±0.1%	0.063	±25	-55 to 155°C	0402	ROHS3	1
ERA-2AEB3401X	Panasonic	3.4 kΩ	±0.1%	0.063	±25	-55 to 155°C	0402	ROHS3	1
RG1005P-3401-B-T5	Susumu	3.4 kΩ	±0.1%	0.063	±25	-55 to 155°C	0402	ROHS3	1
RN73C1E3K4BTDF	TE Connectivity	3.4 kΩ	±0.1%	0.063	±10	-55 to 155°C	0402	ROHS3	1
RR0510P-3401-D	Susumu	3.4 kΩ	±0.5%	0.063	±25	-55 to 125°C	0402	ROHS3	1

Engineering Selection Recommendations

Direct Substitutes (Tolerance ±1%)

RT0402FRE073K4L can be directly replaced with RT0402DRE073K4L (±0.5% tolerance) or RR0510P-3401-D (±0.5% tolerance) when tolerance relaxation is acceptable. Both maintain identical package, power rating, and compliance status.

Upgraded Substitutes (Tolerance ±0.1%)

For applications requiring improved tolerance performance, the following parts provide ±0.1% tolerance while maintaining all mechanical and compliance requirements:

RT0402BRD073K4L and RT0402BRE073K4L (YAGEO) offer tighter tolerance with improved temperature coefficients (±25ppm/°C and ±50ppm/°C respectively)
CPF0402B3K4E1 (TE Connectivity Passive Product) provides ±0.1% tolerance with ±25ppm/°C temperature coefficient
RN73C1E3K4BTDF (TE Connectivity) delivers ±0.1% tolerance with superior ±10ppm/°C temperature coefficient
ERA-2AEB3401X (Panasonic) and RG1005P-3401-B-T5 (Susumu) both provide ±0.1% tolerance with automotive AEC-Q200 certification for applications requiring automotive-grade reliability

Temperature Range Consideration

RR0510P-3401-D operates to 125°C maximum, which is below the original part's 155°C upper limit. This part is suitable only for applications where the reduced upper temperature limit does not conflict with system requirements.

Frequently Asked Questions (FAQ)

Q: Can RT0402BRD073K4L replace RT0402FRE073K4L directly?

A: Yes. Both parts share identical 3.4 kOhms resistance, 0402 package, 0.063W power rating, and operating temperature range. RT0402BRD073K4L provides improved ±0.1% tolerance and ±25ppm/°C temperature coefficient compared to the original ±1% tolerance and ±50ppm/°C coefficient.

Q: What is the difference between RT0402BRD073K4L and RT0402BRE073K4L?

A: Both parts have ±0.1% tolerance and identical electrical specifications. The primary difference is temperature coefficient: RT0402BRD073K4L specifies ±25ppm/°C while RT0402BRE073K4L specifies ±50ppm/°C. Selection depends on temperature stability requirements.

Q: Are automotive-grade parts (ERA-2AEB3401X, RG1005P-3401-B-T5) compatible with non-automotive applications?

A: Yes. Automotive AEC-Q200 certification indicates enhanced reliability testing and qualification. These parts meet or exceed standard industrial specifications and are fully compatible with non-automotive designs.

Q: Why does RR0510P-3401-D have a lower maximum operating temperature?

A: RR0510P-3401-D is rated to 125°C maximum, compared to 155°C for the original part. This part is suitable only for applications where system operating temperature does not exceed 125°C.

Q: Can I use a ±0.1% tolerance part in place of a ±1% tolerance part?

A: Yes. Tighter tolerance specifications are always compatible with applications designed for looser tolerances. The ±0.1% parts provide superior precision and are direct functional upgrades.

Q: Are all substitute parts available in the same packaging format?

A: All listed substitutes use 0402 (1005 Metric) package in Tape & Reel (TR) format, matching the original part's packaging specification.

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