ERJ-S03F6490V Equivalent & Substitute Parts

Part Overview

The ERJ-S03F6490V is a 649 Ohm ±1% 0.1W thick film chip resistor in 0603 (1608 Metric) package manufactured by Panasonic Electronic Components. This part features anti-sulfur coating and automotive AEC-Q200 qualification, designed for high-reliability applications in automotive and industrial environments. The part is currently active in production with 1170 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	649 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 ~ 155°C
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S03F6490V is determined by strict equivalence across the following parameters:

Resistance value: 649 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 ~ 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 optional features (anti-sulfur coating, moisture resistance) do not affect functional substitutability. Compliance certifications (AEC-Q200, RoHS status) are noted for design requirement verification but do not prevent substitution at the component level.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Op. Temp Range	AEC-Q200	RoHS Status	Inventory
ERJ-S03F6490V	Panasonic	649Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	ROHS3	1170
ERJ-3EKF6490V	Panasonic	649Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	ROHS3	90138
AC0603FR-07649RL	YAGEO	649Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	ROHS3	10925
CR0603-FX-6490ELF	Bourns Inc.	649Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	No	ROHS3	20055
CRCW0603649RFKEA	Vishay Dale	649Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	ROHS3	37827
CRCW0603649RFKTA	Vishay Dale	649Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Non-compliant	5756
RC0603FR-07649RL	YAGEO	649Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	No	ROHS3	63953
RMCF0603FT649R	Stackpole Electronics Inc	649Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	ROHS3	41683

Engineering Selection Recommendations

For designs requiring AEC-Q200 automotive qualification, select from: ERJ-3EKF6490V (Panasonic), AC0603FR-07649RL (YAGEO), CRCW0603649RFKEA (Vishay Dale), CRCW0603649RFKTA (Vishay Dale), or RMCF0603FT649R (Stackpole Electronics Inc).

For designs requiring ROHS3 compliance, all parts except CRCW0603649RFKTA are suitable.

The ERJ-3EKF6490V offers the highest inventory availability (90138 units) among qualified substitutes and maintains Panasonic manufacturing continuity. YAGEO RC0603FR-07649RL and RMCF0603FT649R provide substantial inventory depth (63953 and 41683 units respectively) for high-volume applications.

CRCW0603649RFKTA is functionally equivalent but carries non-compliant RoHS status and affected REACH status; use only when regulatory requirements do not apply.

Frequently Asked Questions (FAQ)

Q: Can ERJ-3EKF6490V replace ERJ-S03F6490V directly?

A: Yes. Both parts share identical electrical specifications (649Ω ±1%, 0.1W, ±100ppm/°C, -55°C ~ 155°C), package (0603), and compliance ratings (AEC-Q200, ROHS3). The primary difference is the series designation (ERJ-3EK vs. ERJ-S03) and optional anti-sulfur coating on the ERJ-S03F6490V. Footprint and reflow compatibility are identical.

Q: Are there differences between YAGEO AC0603FR-07649RL and RC0603FR-07649RL?

A: Both are YAGEO 649Ω ±1% 0.1W 0603 resistors with identical electrical performance. AC0603FR-07649RL carries AEC-Q200 qualification; RC0603FR-07649RL does not. Select AC0603FR-07649RL for automotive applications requiring AEC-Q200 certification.

Q: What is the impact of CRCW0603649RFKTA's RoHS non-compliance?

A: CRCW0603649RFKTA is electrically and mechanically equivalent to all other substitutes but does not meet ROHS3 requirements and is REACH Affected. Use only in applications where RoHS3 compliance is not mandated by design specifications or regulatory requirements.

Q: Do physical dimension variations affect PCB layout?

A: All parts conform to 0603 (1608 Metric) package standards. Minor dimension variations (length 0.061" to 0.063", width 0.031" to 0.033", height 0.020" to 0.022") fall within standard tolerances and do not require PCB layout modification. Footprint design should accommodate standard 0603 specifications.

Q: Which substitute offers the best supply availability?

A: RC0603FR-07649RL (YAGEO) has the highest inventory at 63953 units, followed by CRCW0603649RFKEA (Vishay Dale) at 37827 units and RMCF0603FT649R (Stackpole Electronics Inc) at 41683 units. For AEC-Q200 qualified alternatives, ERJ-3EKF6490V (Panasonic) provides 90138 units.

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