RT0402FRE071K24L Equivalent & Substitute Parts

Part Overview

The RT0402FRE071K24L is a 1.24 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 an operating temperature range of -55°C to 155°C. The part is ROHS3 compliant and carries MSL 1 (Unlimited) moisture sensitivity rating. As an active product with established supply availability, equivalent and substitute parts are identified for applications requiring alternative tolerance specifications, composition types, or automotive-grade certifications.

Key Parameters

Parameter	Value
Resistance	1.24 kOhms
Tolerance	±1%
Power Rating	0.063W (1/16W)
Package	0402 (1005 Metric)
Composition	Thin Film
Temperature Coefficient	±50ppm/°C
Operating Temperature Range	-55°C to 155°C
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Resistance Value: All substitute parts must maintain 1.24 kOhms nominal resistance
Package Compatibility: All parts must use 0402 (1005 Metric) package with identical footprint dimensions (0.039" L × 0.020" W / 1.00mm × 0.50mm)
Power Rating: Minimum 0.063W (1/16W) power dissipation capability
Operating Temperature: Full range -55°C to 155°C support
Regulatory Compliance: ROHS3 compliance and MSL 1 rating required

Substitute parts are grouped into two categories:

Tolerance Upgrades (±0.1% and ±0.5%): RT0402BRD071K24L and RT0402DRE071K24L offer improved tolerance specifications while maintaining thin film composition and YAGEO series continuity.

Cross-Manufacturer Alternatives: CPF0402B1K24E1 (TE Connectivity), ERA-2AEB1241X (Panasonic), and CRCW04021K24FKED (Vishay Dale) provide equivalent electrical performance with different composition types and certifications. ERA-2AEB1241X and CRCW04021K24FKED include automotive AEC-Q200 qualification.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Composition	Temp Coeff	Height (Max)	AEC-Q200
RT0402FRE071K24L	YAGEO	1.24 kΩ	±1%	Thin Film	±50ppm/°C	0.014" (0.35mm)	No
RT0402BRD071K24L	YAGEO	1.24 kΩ	±0.1%	Thin Film	±25ppm/°C	0.014" (0.35mm)	No
RT0402DRE071K24L	YAGEO	1.24 kΩ	±0.5%	Thin Film	±50ppm/°C	0.014" (0.35mm)	No
CPF0402B1K24E1	TE Connectivity	1.24 kΩ	±0.1%	Thin Film	±25ppm/°C	0.014" (0.35mm)	No
ERA-2AEB1241X	Panasonic	1.24 kΩ	±0.1%	Thin Film	±25ppm/°C	0.016" (0.40mm)	Yes
CRCW04021K24FKED	Vishay Dale	1.24 kΩ	±1%	Thick Film	±100ppm/°C	0.016" (0.40mm)	Yes

Engineering Selection Recommendations

For Standard Industrial Applications: RT0402BRD071K24L and RT0402DRE071K24L maintain YAGEO series continuity with improved tolerance specifications (±0.1% and ±0.5% respectively) and lower temperature coefficients. These parts are direct upgrades within the same manufacturer's product line.

For Cross-Manufacturer Substitution: CPF0402B1K24E1 (TE Connectivity Neohm series) provides ±0.1% tolerance with thin film composition and equivalent thermal performance. This part is suitable for applications requiring supplier diversification.

For Automotive Applications: ERA-2AEB1241X (Panasonic ERA-2A series) and CRCW04021K24FKED (Vishay Dale CRCW series) both carry AEC-Q200 automotive qualification. ERA-2AEB1241X maintains thin film composition with ±0.1% tolerance and ±25ppm/°C temperature coefficient. CRCW04021K24FKED uses thick film composition with ±1% tolerance and ±100ppm/°C temperature coefficient. Selection between these depends on thermal stability requirements and composition preference.

Height Consideration: ERA-2AEB1241X and CRCW04021K24FKED have maximum seated height of 0.016" (0.40mm) compared to 0.014" (0.35mm) for YAGEO and TE Connectivity parts. Verify PCB clearance requirements before substitution.

Frequently Asked Questions (FAQ)

Q: Can RT0402BRD071K24L replace RT0402FRE071K24L directly?

A: Yes. Both parts share identical 1.24 kOhms resistance, 0402 package, and operating temperature range. RT0402BRD071K24L offers improved tolerance (±0.1% vs ±1%) and lower temperature coefficient (±25ppm/°C vs ±50ppm/°C), making it a direct upgrade with enhanced precision.

Q: What is the difference between thin film and thick film composition?

A: Thin film resistors (RT0402FRE071K24L, RT0402BRD071K24L, RT0402DRE071K24L, CPF0402B1K24E1, ERA-2AEB1241X) provide superior tolerance accuracy and lower temperature coefficients. Thick film resistors (CRCW04021K24FKED) offer higher power density and cost efficiency but with wider tolerance and higher temperature coefficient. Selection depends on circuit precision requirements.

Q: Are automotive-grade parts (AEC-Q200) interchangeable with industrial-grade parts?

A: Automotive-grade parts (ERA-2AEB1241X, CRCW04021K24FKED) meet additional qualification and reliability standards. They can be used in industrial applications, but industrial-grade parts should not be substituted into automotive designs without design review.

Q: Does the 0.002" (0.05mm) height difference affect PCB assembly?

A: ERA-2AEB1241X and CRCW04021K24FKED have maximum seated height of 0.016" (0.40mm) versus 0.014" (0.35mm) for other parts. This difference is negligible for most applications but should be verified against PCB clearance specifications, particularly in high-density layouts or applications with height constraints.

Q: Can I substitute CRCW04021K24FKED for applications requiring ±0.1% tolerance?

A: No. CRCW04021K24FKED has ±1% tolerance, which does not meet ±0.1% requirements. Use RT0402BRD071K24L, CPF0402B1K24E1, or ERA-2AEB1241X for precision applications requiring ±0.1% tolerance.

Q: Which substitute part has the best temperature stability?

A: RT0402BRD071K24L, CPF0402B1K24E1, and ERA-2AEB1241X all have ±25ppm/°C temperature coefficient, providing superior stability compared to RT0402FRE071K24L (±50ppm/°C) and CRCW04021K24FKED (±100ppm/°C).

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