RT0402FRE071K37L Equivalent & Substitute Parts

Part Overview

The RT0402FRE071K37L is a 1.37 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 active in production status and ROHS3 compliant. Equivalent and substitute parts are identified when identical resistance values, package dimensions, and power ratings are maintained while tolerance, temperature coefficient, or manufacturer specifications may vary within acceptable electrical parameters.

Key Parameters

Parameter	Value
Resistance	1.37 kOhms
Tolerance	±1%
Power Rating	0.063W (1/16W)
Package / Case	0402 (1005 Metric)
Composition	Thin Film
Operating Temperature Range	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RT0402FRE071K37L is determined by the following mandatory parameters:

Resistance value: 1.37 kOhms (exact match required)
Package / Case: 0402 (1005 Metric) (exact match required)
Power rating: 0.063W, 1/16W (exact match required)
Composition: Thin Film (exact match required)
Operating temperature range: -55°C ~ 155°C (minimum requirement)
RoHS compliance: ROHS3 Compliant (required)

Tolerance, temperature coefficient, and manufacturer may vary. Substitute parts meeting all mandatory parameters are electrically and mechanically interchangeable in standard applications.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Package	RoHS Status
RT0402FRE071K37L	YAGEO	1.37 kOhms	±1%	0.063	±50	-55 ~ 155	0402	ROHS3
RT0402BRD071K37L	YAGEO	1.37 kOhms	±0.1%	0.063	±25	-55 ~ 155	0402	ROHS3
RT0402CRE071K37L	YAGEO	1.37 kOhms	±0.25%	0.063	±50	-55 ~ 155	0402	ROHS3
RT0402DRE071K37L	YAGEO	1.37 kOhms	±0.5%	0.063	±50	-55 ~ 155	0402	ROHS3
CPF0402B1K37E1	TE Connectivity Passive Product	1.37 kOhms	±0.1%	0.063	±25	-55 ~ 155	0402	ROHS3
ERA-2AEB1371X	Panasonic Electronic Components	1.37 kOhms	±0.1%	0.063	±25	-55 ~ 155	0402	ROHS3
RN73C1E1K37BTDF	TE Connectivity Passive Product	1.37 kOhms	±0.1%	0.063	±10	-55 ~ 155	0402	ROHS3

Engineering Selection Recommendations

All listed substitute parts maintain ROHS3 compliance and active product status. Selection among substitutes depends on application-specific tolerance and temperature coefficient requirements:

RT0402BRD071K37L, CPF0402B1K37E1, ERA-2AEB1371X, and RN73C1E1K37BTDF offer improved tolerance (±0.1%) compared to the original part (±1%). ERA-2AEB1371X includes Automotive AEC-Q200 qualification for applications requiring automotive-grade reliability. RN73C1E1K37BTDF provides the lowest temperature coefficient (±10ppm/°C) for precision applications requiring minimal drift across temperature extremes.

RT0402CRE071K37L and RT0402DRE071K37L provide intermediate tolerance options (±0.25% and ±0.5% respectively) within the YAGEO RT series.

Frequently Asked Questions (FAQ)

Q: Can RT0402FRE071K37L be directly replaced with any of these substitute parts?

A: Yes. All listed parts maintain identical resistance (1.37 kOhms), power rating (0.063W), package (0402), composition (thin film), and operating temperature range (-55°C to 155°C). Direct substitution is mechanically and electrically valid.

Q: What is the difference between tolerance grades in the substitute list?

A: Tolerance defines the acceptable deviation from the nominal 1.37 kOhms value. The original part specifies ±1% (1.3563 to 1.3837 kOhms). Substitute parts with ±0.1%, ±0.25%, or ±0.5% tolerance provide tighter resistance accuracy. Selection depends on circuit precision requirements.

Q: Why does ERA-2AEB1371X have a different height specification?

A: ERA-2AEB1371X specifies 0.016" (0.40mm) maximum seated height versus 0.014" (0.35mm) for other parts. This minor difference remains within typical PCB assembly tolerances for 0402 packages but should be verified for applications with height constraints.

Q: What does temperature coefficient mean in this context?

A: Temperature coefficient (ppm/°C) indicates resistance value drift per degree Celsius change. Lower values indicate greater stability across temperature extremes. RN73C1E1K37BTDF (±10ppm/°C) provides superior thermal stability compared to parts rated ±25ppm/°C or ±50ppm/°C.

Q: Is AEC-Q200 qualification required for my application?

A: AEC-Q200 qualification (present in ERA-2AEB1371X) is required only for automotive applications. Standard industrial and consumer applications do not require this certification.

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