RT0402FRE072K37L Equivalent & Substitute Parts

Part Overview

The RT0402FRE072K37L is a 2.37 kOhms ±1% thin film chip resistor in 0402 (1005 Metric) package manufactured by YAGEO. This surface-mount resistor is rated for 0.063W (1/16W) power dissipation and operates across -55°C to 155°C. The part is active and in production, with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified for applications requiring alternative tolerance grades, temperature coefficients, or manufacturer sourcing options while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	2.37 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 ~ 155°C
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RT0402FRE072K37L are qualified based on the following criteria:

Resistance Value: All substitutes maintain 2.37 kOhms nominal resistance
Package Compatibility: All substitutes use 0402 (1005 Metric) package with identical footprint dimensions (1.00mm L × 0.50mm W)
Power Rating: All substitutes are rated 0.063W (1/16W)
Composition: All substitutes are thin film resistors
Operating Temperature: All substitutes support -55°C to 155°C range (or higher)
Compliance: All substitutes maintain ROHS3 compliance and MSL 1 rating

Substitutes are grouped by tolerance grade (±0.1%, ±0.5%, ±1%) and temperature coefficient performance. Tighter tolerance grades and lower temperature coefficients represent performance upgrades suitable for precision applications.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Temp Coeff	Operating Temp	Height (Max)	Series	Special Features
RT0402FRE072K37L	YAGEO	2.37 kOhms	±1%	±50ppm/°C	-55°C ~ 155°C	0.014" (0.35mm)	RT	—
RT0402BRD072K37L	YAGEO	2.37 kOhms	±0.1%	±25ppm/°C	-55°C ~ 155°C	0.014" (0.35mm)	RT	Precision upgrade
RT0402DRD072K37L	YAGEO	2.37 kOhms	±0.5%	±25ppm/°C	-55°C ~ 155°C	0.014" (0.35mm)	RT	Mid-range tolerance
CPF0402B2K37E1	TE Connectivity	2.37 kOhms	±0.1%	±25ppm/°C	-55°C ~ 155°C	0.014" (0.35mm)	CPF (Neohm)	Precision grade
ERA-2AEB2371X	Panasonic	2.37 kOhms	±0.1%	±25ppm/°C	-55°C ~ 155°C	0.016" (0.40mm)	ERA-2A	AEC-Q200 Automotive
RN73C1E2K37BTDF	TE Connectivity	2.37 kOhms	±0.1%	±10ppm/°C	-55°C ~ 155°C	0.014" (0.35mm)	RN73 (Holsworthy)	Ultra-low temp coeff
RR0510P-2371-D	Susumu	2.37 kOhms	±0.5%	±25ppm/°C	-55°C ~ 125°C	0.016" (0.40mm)	RR	Limited upper temp

Engineering Selection Recommendations

Direct Equivalent (Same Tolerance)

No direct ±1% equivalent from other manufacturers is listed. The RT0402FRE072K37L remains the primary YAGEO option at this tolerance grade.

Precision Upgrades (±0.1% Tolerance)

RT0402BRD072K37L (YAGEO): Same manufacturer, improved tolerance and temperature coefficient. Recommended for applications requiring tighter resistance accuracy.
CPF0402B2K37E1 (TE Connectivity): TE Connectivity Neohm series precision resistor. Equivalent electrical performance to RT0402BRD072K37L.
RN73C1E2K37BTDF (TE Connectivity): Holsworthy series with ±10ppm/°C temperature coefficient. Suitable for high-stability analog circuits.
ERA-2AEB2371X (Panasonic): AEC-Q200 automotive-qualified option. Required for automotive applications or when automotive-grade components are specified.

Mid-Range Tolerance (±0.5%)

RT0402DRD072K37L (YAGEO): Same manufacturer, mid-range tolerance. Suitable for general-purpose applications with moderate accuracy requirements.
RR0510P-2371-D (Susumu): Equivalent tolerance and temperature coefficient. Note: Operating temperature limited to -55°C ~ 125°C (does not reach 155°C upper limit).

Compliance Considerations

All listed substitutes maintain ROHS3 compliance and MSL 1 rating.
ERA-2AEB2371X carries AEC-Q200 automotive qualification; use when automotive reliability standards are required.
RR0510P-2371-D has reduced upper operating temperature (125°C vs. 155°C); verify thermal requirements before selection.

Frequently Asked Questions (FAQ)

Q: Can I substitute RT0402FRE072K37L with a ±0.1% tolerance part? A: Yes. RT0402BRD072K37L, CPF0402B2K37E1, RN73C1E2K37BTDF, and ERA-2AEB2371X all provide ±0.1% tolerance with identical 0402 package and 2.37 kOhms resistance. These are direct electrical upgrades with improved accuracy.

Q: What is the difference between RT0402BRD072K37L and RN73C1E2K37BTDF? A: Both are ±0.1% precision resistors in 0402 package. RN73C1E2K37BTDF has a lower temperature coefficient (±10ppm/°C vs. ±25ppm/°C), making it superior for temperature-sensitive applications. Both are electrically compatible.

Q: Is ERA-2AEB2371X suitable for non-automotive applications? A: Yes. ERA-2AEB2371X is AEC-Q200 qualified but can be used in any application. Its automotive qualification ensures higher reliability standards. The only dimensional difference is height (0.40mm vs. 0.35mm); verify PCB clearance.

Q: Can I use RR0510P-2371-D as a direct replacement? A: RR0510P-2371-D is mechanically and electrically compatible in 0402 package with identical resistance and similar tolerance. However, its maximum operating temperature is 125°C, not 155°C. Use only if your application does not exceed 125°C.

Q: Are all substitutes available in tape and reel packaging? A: Yes. All listed substitutes are supplied in Tape & Reel (TR) packaging, matching the original part's packaging format.

Q: Which substitute offers the best temperature stability? A: RN73C1E2K37BTDF provides the lowest temperature coefficient at ±10ppm/°C, compared to ±25ppm/°C for other precision grades and ±50ppm/°C for the original part. Select this for applications requiring maximum temperature stability.

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