ERJ-14NF4642U Equivalent & Substitute Parts

Part Overview

The ERJ-14NF4642U is a 46.4 kOhms ±1% thick film chip resistor rated at 0.5W (1/2W) in a 1210 (3225 Metric) package. Manufactured by Panasonic Electronic Components, this part meets automotive AEC-Q200 qualification standards and operates across -55°C to 155°C. The part is classified as "Not For New Designs," making equivalent and substitute parts necessary for ongoing production and maintenance applications where this resistor value and package are required.

Key Parameters

Parameter	Value
Resistance	46.4 kOhms
Tolerance	±1%
Power Rating	0.5W (1/2W)
Package / Case	1210 (3225 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-14NF4642U is determined by the following critical parameters:

Resistance Value: 46.4 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power Rating: 0.5W / 1/2W (exact match required)
Package: 1210 (3225 Metric) (exact match required for mechanical fit)
Composition: Thick Film (exact match required)
Temperature Coefficient: ±100ppm/°C (exact match required)
Operating Temperature: -55°C to 155°C (exact match required)
Automotive Compliance: AEC-Q200 (required for automotive applications)

All substitute parts listed below match these critical parameters. Variations in secondary features (such as anti-sulfur properties, moisture resistance, or height tolerances) do not affect functional substitutability when the above parameters are identical.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Temp Range	AEC-Q200	RoHS Status	Product Status
ERJ-14NF4642U	Panasonic	46.4 kΩ	±1%	0.5	1210	±100ppm/°C	-55 to 155°C	Yes	ROHS3	Not For New Designs
ERJ-S14F4642U	Panasonic	46.4 kΩ	±1%	0.5	1210	±100ppm/°C	-55 to 155°C	Yes	ROHS3	Active
CRCW121046K4FKEA	Vishay Dale	46.4 kΩ	±1%	0.5	1210	±100ppm/°C	-55 to 155°C	Yes	ROHS3	Active
CRCW121046K4FKTA	Vishay Dale	46.4 kΩ	±1%	0.5	1210	±100ppm/°C	-55 to 155°C	Yes	RoHS Non-Compliant	Active
AC1210FR-0746K4L	YAGEO	46.4 kΩ	±1%	0.5	1210	±100ppm/°C	-55 to 155°C	Yes	ROHS3	Active
AF1210FR-0746K4L	YAGEO	46.4 kΩ	±1%	0.5	1210	±100ppm/°C	-55 to 155°C	Yes	ROHS3	Active
RC1210FR-0746K4L	YAGEO	46.4 kΩ	±1%	0.5	1210	±100ppm/°C	-55 to 155°C	No	ROHS3	Active

Engineering Selection Recommendations

Primary Recommendation: ERJ-S14F4642U (Panasonic) is the direct active replacement. It maintains the same manufacturer lineage, package, and all critical electrical parameters while offering anti-sulfur protection. Product status is Active, ensuring long-term availability.

Secondary Recommendations: CRCW121046K4FKEA (Vishay Dale) and AC1210FR-0746K4L (YAGEO) are functionally equivalent alternatives. Both are Active products with ROHS3 compliance and full AEC-Q200 automotive qualification. These parts are suitable for direct substitution in automotive applications.

Compliance Consideration: CRCW121046K4FKTA carries RoHS non-compliance status and REACH Affected designation. This part is functionally equivalent but may not meet procurement requirements for new automotive designs or regulated markets.

Non-Automotive Applications: RC1210FR-0746K4L lacks AEC-Q200 certification. While electrically equivalent, this part is suitable only for non-automotive applications where automotive qualification is not required.

Downsizing Alternative: ERJ-P06F4642V (Panasonic) offers the same resistance, tolerance, and power rating in a smaller 0805 (2012 Metric) package. This part is suitable only when PCB space constraints permit package reduction and mechanical fit is verified.

Frequently Asked Questions (FAQ)

Q: Can I use ERJ-P06F4642V as a direct replacement for ERJ-14NF4642U?

A: No. ERJ-P06F4642V uses a 0805 (2012 Metric) package, which is physically smaller than the 1210 (3225 Metric) package of the ERJ-14NF4642U. While electrically equivalent, the different package size requires PCB layout modification and mechanical verification before substitution.

Q: What is the difference between ERJ-S14F4642U and ERJ-14NF4642U?

A: Both parts share identical electrical specifications (46.4 kΩ, ±1%, 0.5W, 1210 package, AEC-Q200). The ERJ-S14F4642U includes anti-sulfur protection and is classified as Active, whereas ERJ-14NF4642U is Not For New Designs. For new designs, ERJ-S14F4642U is the recommended Panasonic equivalent.

Q: Are YAGEO and Vishay Dale parts interchangeable with Panasonic?

A: Yes, when all critical parameters match. CRCW121046K4FKEA, AC1210FR-0746K4L, AF1210FR-0746K4L, and RC1210FR-0746K4L are all functionally equivalent to ERJ-14NF4642U. Verify compliance requirements (RoHS, REACH, AEC-Q200) for your specific application before selection.

Q: Why is CRCW121046K4FKTA listed if it is RoHS non-compliant?

A: CRCW121046K4FKTA is electrically and mechanically equivalent to ERJ-14NF4642U. However, its RoHS non-compliance and REACH Affected status restrict its use to applications and markets where these regulations do not apply. Verify regulatory requirements before use.

Q: Does RC1210FR-0746K4L work in automotive applications?

A: RC1210FR-0746K4L lacks AEC-Q200 automotive qualification. While electrically equivalent, it is not suitable for automotive applications requiring AEC-Q200 certification. Use only in non-automotive circuits.

Q: What are the height differences between substitute parts?

A: ERJ-14NF4642U has a maximum seated height of 0.028" (0.70mm). CRCW121046K4FKEA, CRCW121046K4FKTA, AC1210FR-0746K4L, AF1210FR-0746K4L, and RC1210FR-0746K4L all have a maximum seated height of 0.024" (0.60mm). These minor height variations do not affect functional performance in standard PCB assemblies.

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