ERJ-S03F5110V Equivalent & Substitute Parts

Part Overview

The ERJ-S03F5110V is a 511 Ohm ±1% thick film chip resistor manufactured by Panasonic Electronic Components in 0603 (1608 Metric) package format. This component is rated for 0.1W (1/10W) power dissipation and features anti-sulfur coating with automotive AEC-Q200 qualification. The part is currently active in production with 736 units in stock.

Substitute parts are necessary when the primary part becomes unavailable, when supply chain optimization is required, or when design flexibility across multiple qualified manufacturers is needed while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Resistance	511 Ohms
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 to 155°C
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S03F5110V is determined by strict equivalence across the following parameters:

Resistance value: 511 Ohms
Tolerance: ±1%
Power rating: 0.1W (1/10W)
Package: 0603 (1608 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Termination count: 2
Moisture sensitivity level: 1 (Unlimited)

All substitute parts listed meet these core electrical and mechanical requirements. Variations in physical dimensions (length, width, height) within standard 0603 tolerances and differences in compliance certifications do not affect functional interchangeability in standard PCB assembly processes.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	RoHS Status	AEC-Q200	Inventory
ERJ-S03F5110V	Panasonic	511 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	Yes	736
ERJ-3EKF5110V	Panasonic	511 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	Yes	105732
AC0603FR-07511RL	YAGEO	511 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	Yes	1943
CR0603-FX-5110ELF	Bourns Inc.	511 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	No	275053
CRCW0603511RFKEA	Vishay Dale	511 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	Yes	89404
CRCW0603511RFKTA	Vishay Dale	511 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Non-compliant	Yes	5400
RC0603FR-07511RL	YAGEO	511 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	No	29883
RMCF0603FT511R	Stackpole Electronics Inc	511 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	Yes	403173

Engineering Selection Recommendations

All listed substitute parts are functionally equivalent to the ERJ-S03F5110V based on core electrical and mechanical parameters. Selection among qualified alternatives should be based on the following criteria:

For AEC-Q200 automotive applications: ERJ-3EKF5110V (Panasonic), AC0603FR-07511RL (YAGEO), CRCW0603511RFKEA (Vishay Dale), and RMCF0603FT511R (Stackpole Electronics Inc) all carry AEC-Q200 certification and ROHS3 compliance, making them suitable for automotive-grade designs.

For RoHS3 compliance requirement: ERJ-3EKF5110V, AC0603FR-07511RL, CRCW0603511RFKEA, RC0603FR-07511RL, and RMCF0603FT511R all meet ROHS3 compliance. CRCW0603511RFKTA does not meet current RoHS requirements and should not be selected for new designs requiring RoHS3 compliance.

For supply availability: CR0603-FX-5110ELF (Bourns) offers the highest inventory level at 275,053 units, followed by RMCF0603FT511R (Stackpole) at 403,173 units. ERJ-3EKF5110V (Panasonic) provides 105,732 units.

For REACH compliance: All parts except CRCW0603511RFKTA are REACH Unaffected. CRCW0603511RFKTA is REACH Affected and should be avoided in applications requiring REACH compliance.

Frequently Asked Questions (FAQ)

Q: Can I use CR0603-FX-5110ELF as a direct replacement for ERJ-S03F5110V in automotive applications?

A: CR0603-FX-5110ELF meets all core electrical and mechanical specifications and shares the same 0603 package, resistance value, tolerance, and power rating. However, it does not carry AEC-Q200 certification. If your design requires AEC-Q200 qualification, use ERJ-3EKF5110V, AC0603FR-07511RL, CRCW0603511RFKEA, or RMCF0603FT511R instead.

Q: Are there dimensional differences between these substitute parts?

A: All parts use the 0603 (1608 Metric) package. Minor variations in seated height (0.020" to 0.022") and length/width (within 0.061" to 0.063" L and 0.031" to 0.033" W) exist across manufacturers but fall within standard 0603 package tolerances and do not affect PCB assembly compatibility.

Q: Which substitute part should I choose if RoHS3 compliance is mandatory?

A: Select from ERJ-3EKF5110V, AC0603FR-07511RL, CRCW0603511RFKEA, RC0603FR-07511RL, or RMCF0603FT511R. Avoid CRCW0603511RFKTA, which is RoHS non-compliant.

Q: What is the difference between ERJ-S03F5110V and ERJ-3EKF5110V?

A: Both are Panasonic 511 Ohm ±1% 0603 thick film resistors with identical electrical specifications. ERJ-3EKF5110V is from the ERJ-3EK series and offers significantly higher inventory availability (105,732 units vs. 736 units). Both carry AEC-Q200 certification and ROHS3 compliance.

Q: Can I substitute CRCW0603511RFKTA in new designs?

A: CRCW0603511RFKTA meets core electrical and mechanical specifications but is RoHS non-compliant and REACH Affected. It is not recommended for new designs. Use CRCW0603511RFKEA instead, which is the RoHS3-compliant variant from Vishay Dale.

Q: Do all these parts have the same moisture sensitivity level?

A: Yes. All listed parts have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.

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