ERJ-S14F38R3U Equivalent & Substitute Parts

Part Overview

The ERJ-S14F38R3U is a 38.3 Ohm ±1% 0.5W thick film chip resistor in 1210 (3225 Metric) package manufactured by Panasonic Electronic Components. This part is rated for automotive applications under AEC-Q200 and features anti-sulfur construction. The part is currently in active production status with 808 units in stock.

Substitute parts are necessary when the primary part becomes unavailable, when design requirements shift to alternative manufacturers, or when procurement strategies require multi-source qualification. All listed substitutes maintain identical electrical specifications and package dimensions, ensuring direct board-level compatibility.

Key Parameters

Parameter	Value
Resistance	38.3 Ohms
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	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S14F38R3U is determined by strict equivalence across the following parameters:

Resistance value: 38.3 Ohms
Tolerance: ±1%
Power rating: 0.5W (1/2W)
Package: 1210 (3225 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Automotive qualification: AEC-Q200
RoHS compliance: ROHS3
Moisture sensitivity: MSL 1

All four substitute parts listed meet these criteria. Substitutes are grouped by manufacturer and product status, with variations noted in packaging format (Tape & Reel versus Cut Tape) and minor dimensional tolerances that remain within acceptable PCB assembly parameters.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	AEC-Q200	RoHS3	MSL	Product Status	Packaging Type
ERJ-S14F38R3U	Panasonic	38.3 Ω	±1%	0.5	1210	±100ppm/°C	-55 to 155°C	Yes	Yes	1	Active	Tape & Reel
ERJ-14NF38R3U	Panasonic	38.3 Ω	±1%	0.5	1210	±100ppm/°C	-55 to 155°C	Yes	Yes	1	Not For New Designs	Tape & Reel
AC1210FR-0738R3L	YAGEO	38.3 Ω	±1%	0.5	1210	±100ppm/°C	-55 to 155°C	Yes	Yes	1	Active	Tape & Reel
CRCW121038R3FKEA	Vishay Dale	38.3 Ω	±1%	0.5	1210	±100ppm/°C	-55 to 155°C	Yes	Yes	1	Active	Tape & Reel
RMCF1210FT38R3	Stackpole Electronics	38.3 Ω	±1%	0.5	1210	±100ppm/°C	-55 to 155°C	Yes	Yes	1	Active	Cut Tape

Engineering Selection Recommendations

For new designs, select from parts with Active product status: AC1210FR-0738R3L (YAGEO), CRCW121038R3FKEA (Vishay Dale), or RMCF1210FT38R3 (Stackpole Electronics). All three maintain full AEC-Q200 automotive qualification and ROHS3 compliance.

The ERJ-S14F38R3U (Panasonic, Active) is the primary choice when Panasonic supply chain qualification is required. The ERJ-14NF38R3U (Panasonic, Not For New Designs) is suitable only for legacy design support or existing production lines already qualified to this part number.

Packaging format differs between suppliers: Tape & Reel format is standard for high-volume automated assembly, while Cut Tape format (RMCF1210FT38R3) is suitable for lower-volume or manual assembly operations. This distinction does not affect electrical or thermal performance.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF38R3U be used in new designs? A: No. ERJ-14NF38R3U carries "Not For New Designs" status. Use AC1210FR-0738R3L, CRCW121038R3FKEA, or RMCF1210FT38R3 for new designs.

Q: Are all substitutes AEC-Q200 qualified? A: Yes. All listed substitutes carry AEC-Q200 automotive qualification and are suitable for automotive applications.

Q: What is the difference between Tape & Reel and Cut Tape packaging? A: Tape & Reel packaging is supplied on continuous carrier tape for automated pick-and-place assembly. Cut Tape is supplied in shorter tape segments for manual or lower-volume assembly. Electrical and thermal specifications are identical.

Q: Do all substitutes have the same physical dimensions? A: All substitutes use the 1210 (3225 Metric) package. Minor dimensional variations exist within supplier tolerances (for example, AC1210FR-0738R3L has 0.024" maximum seated height versus 0.028" for other parts), but these remain within standard PCB assembly clearance specifications.

Q: Are all substitutes ROHS3 compliant? A: Yes. All listed parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which substitute has the highest inventory availability? A: CRCW121038R3FKEA (Vishay Dale) has 15,782 units in stock, the highest among all listed parts.

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