ERJ-S03F4422V Equivalent & Substitute Parts

Part Overview

The ERJ-S03F4422V is a 44.2 kOhms ±1% thick film chip resistor manufactured by Panasonic Electronic Components in 0603 (1608 Metric) package format with 0.1W power rating. This component is rated for automotive applications under AEC-Q200 standard with anti-sulfur properties and operates across -55°C to 155°C temperature range. The part is currently active in production. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and compliance certifications to ensure direct interchangeability in circuit designs.

Key Parameters

Parameter	Value
Resistance	44.2 kOhms
Tolerance	±1%
Power Rating	0.1W (1/10W)
Package / Case	0603 (1608 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the ERJ-S03F4422V are qualified based on the following criteria:

Electrical Parameters (Must Match):

Resistance value: 44.2 kOhms
Tolerance: ±1%
Power rating: 0.1W (1/10W)
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match):

Package type: 0603 (1608 Metric)
Number of terminations: 2
Composition: Thick Film

Compliance & Certifications (Must Match or Exceed):

RoHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
REACH Unaffected status

Substitute parts may differ in packaging format (Tape & Reel vs. Cut Tape), manufacturer-specific features (anti-sulfur, moisture resistant), and minor dimensional tolerances within the 0603 package specification. Product status variations are noted where applicable.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Operating Temp	AEC-Q200	RoHS3	MSL	Product Status
ERJ-S03F4422V	Panasonic Electronic Components	44.2 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	1	Active
ERJ-3EKF4422V	Panasonic Electronic Components	44.2 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	1	Active
AC0603FR-0744K2L	YAGEO	44.2 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	1	Active
CR0603-FX-4422ELF	Bourns Inc.	44.2 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Yes	1	Active
CRCW060344K2FKEA	Vishay Dale	44.2 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	1	Active
CRCW060344K2FKEB	Vishay Dale	44.2 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	1	Discontinued at DiGi Electronics
RC0603FR-0744K2L	YAGEO	44.2 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Yes	1	Active
RMCF0603FT44K2	Stackpole Electronics Inc	44.2 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	1	Active

Engineering Selection Recommendations

Primary Substitutes (Recommended for Automotive Applications):

For designs requiring AEC-Q200 automotive qualification, select from: ERJ-3EKF4422V (Panasonic), CRCW060344K2FKEA (Vishay Dale), or RMCF0603FT44K2 (Stackpole Electronics Inc). All three maintain active production status and full compliance with automotive standards.

Alternative Substitutes (Non-Automotive Applications):

For non-automotive applications, CR0603-FX-4422ELF (Bourns Inc.) and RC0603FR-0744K2L (YAGEO) provide equivalent electrical and mechanical specifications with active product status. These parts do not carry AEC-Q200 rating but meet all other compliance requirements.

Discontinued Status:

CRCW060344K2FKEB (Vishay Dale) is discontinued at DiGi Electronics. While inventory remains available, CRCW060344K2FKEA should be prioritized for new designs to ensure long-term supply continuity.

Packaging Considerations:

ERJ-S03F4422V is supplied in Tape & Reel format. RC0603FR-0744K2L is available in Cut Tape & Digi-Reel format. Verify packaging requirements for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can I substitute ERJ-S03F4422V with any of the listed parts?

A: Yes, all listed parts meet the core electrical and mechanical specifications (44.2 kOhms ±1%, 0.1W, 0603 package, ±100ppm/°C, -55°C to 155°C). However, for automotive applications, use only parts with AEC-Q200 rating: ERJ-3EKF4422V, CRCW060344K2FKEA, RMCF0603FT44K2, or AC0603FR-0744K2L.

Q: What is the difference between ERJ-S03F4422V and ERJ-3EKF4422V?

A: Both are Panasonic thick film 0603 resistors with identical electrical specifications. ERJ-S03F4422V includes anti-sulfur properties, while ERJ-3EKF4422V does not specify this feature. Both are AEC-Q200 rated and ROHS3 compliant.

Q: Are there dimensional differences between manufacturers?

A: Minor dimensional variations exist within the 0603 package specification. Panasonic and YAGEO parts measure 0.063" L x 0.031" W (1.60mm x 0.80mm). Vishay Dale CRCW series measures 0.061" L x 0.033" W (1.55mm x 0.85mm). Stackpole RMCF measures 0.061" L x 0.031" W (1.55mm x 0.80mm). All variations remain within standard 0603 tolerances and are mechanically compatible.

Q: Which substitute has the highest inventory availability?

A: RC0603FR-0744K2L (YAGEO) has 345,905 pieces in stock, followed by ERJ-3EKF4422V (Panasonic) with 151,004 pieces.

Q: Can I use CR0603-FX-4422ELF or RC0603FR-0744K2L in automotive designs?

A: These parts lack AEC-Q200 automotive qualification. Use them only in non-automotive applications or where automotive certification is not required.

Q: What does MSL 1 (Unlimited) mean?

A: Moisture Sensitivity Level 1 indicates the component can be stored indefinitely without moisture baking requirements, making it suitable for standard warehouse conditions and long-term inventory management.

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