ERJ-S03F7873V Equivalent & Substitute Parts

Part Overview

The ERJ-S03F7873V is a 787 kOhms ±1% thick film chip resistor rated at 0.1W (1/10W) in 0603 (1608 Metric) package format. Manufactured by Panasonic Electronic Components, this component features anti-sulfur properties and automotive AEC-Q200 qualification, making it suitable for automotive and harsh environment applications. The part is currently active in production with 913 units in stock.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating), mechanical compatibility (package size, termination count), and environmental ratings (operating temperature range, compliance certifications). These alternatives enable design flexibility, supply chain continuity, and procurement optimization.

Key Parameters

Parameter	Value
Resistance	787 kOhms
Tolerance	±1%
Power Rating	0.1W (1/10W)
Package / Case	0603 (1608 Metric)
Composition	Thick Film
Operating Temperature	-55°C ~ 155°C
Temperature Coefficient	±100ppm/°C
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S03F7873V is determined by strict equivalence across the following parameters:

Electrical Match: Resistance value of 787 kOhms, tolerance of ±1%, power rating of 0.1W
Package Compatibility: 0603 (1608 Metric) case size with 2 terminations
Environmental Specifications: Operating temperature range of -55°C to 155°C, temperature coefficient of ±100ppm/°C
Compliance & Certifications: RoHS3 compliance, MSL Level 1, REACH unaffected status

All identified substitute parts meet these criteria. Variations in physical dimensions (length and height) within the 0603 package specification and differences in specific feature sets (anti-sulfur vs. moisture resistant) do not affect functional substitutability in standard PCB assembly processes.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp (°C)	AEC-Q200	RoHS3	Inventory (Pcs)
ERJ-S03F7873V	Panasonic Electronic Components	787 kOhms	±1%	0.1	0603	±100ppm/°C	-55 ~ 155	Yes	Yes	913
ERJ-3EKF7873V	Panasonic Electronic Components	787 kOhms	±1%	0.1	0603	±100ppm/°C	-55 ~ 155	Yes	Yes	171534
CRCW0603787KFKEA	Vishay Dale	787 kOhms	±1%	0.1	0603	±100ppm/°C	-55 ~ 155	Yes	Yes	28155
RC0603FR-07787KL	YAGEO	787 kOhms	±1%	0.1	0603	±100ppm/°C	-55 ~ 155	No	Yes	44858
RMCF0603FT787K	Stackpole Electronics Inc	787 kOhms	±1%	0.1	0603	±100ppm/°C	-55 ~ 155	Yes	Yes	66846

Engineering Selection Recommendations

All substitute parts listed are functionally equivalent to the ERJ-S03F7873V and suitable for direct replacement in standard applications. Selection among alternatives should be based on the following criteria:

For Automotive AEC-Q200 Applications: ERJ-3EKF7873V (Panasonic), CRCW0603787KFKEA (Vishay Dale), and RMCF0603FT787K (Stackpole Electronics Inc) carry AEC-Q200 qualification. The RC0603FR-07787KL (YAGEO) does not carry this rating and should be used only in non-automotive or non-qualified applications.

For Supply Chain Continuity: ERJ-3EKF7873V offers the highest inventory availability (171534 units), followed by RMCF0603FT787K (66846 units) and RC0603FR-07787KL (44858 units).

For Feature-Specific Requirements: The ERJ-S03F7873V includes anti-sulfur properties; the RC0603FR-07787KL emphasizes moisture resistance. Other alternatives provide standard thick film construction. Feature selection depends on environmental exposure conditions in the target application.

All parts maintain identical electrical performance, temperature stability, and compliance certifications (RoHS3, REACH unaffected, MSL Level 1).

Frequently Asked Questions (FAQ)

Q: Can ERJ-3EKF7873V replace ERJ-S03F7873V directly on the PCB? A: Yes. Both parts share identical electrical specifications (787 kOhms ±1%, 0.1W), package format (0603), operating temperature range (-55°C to 155°C), and compliance status. The ERJ-3EKF series is a direct functional equivalent.

Q: What is the difference between anti-sulfur and moisture-resistant variants? A: Anti-sulfur protection (ERJ-S03F7873V) addresses corrosion from sulfur-containing environments, while moisture resistance (RC0603FR-07787KL) protects against humidity ingress. Both are thick film constructions with identical electrical performance. Selection depends on environmental exposure conditions.

Q: Is RC0603FR-07787KL suitable for automotive applications? A: RC0603FR-07787KL meets all electrical and mechanical requirements but does not carry AEC-Q200 automotive qualification. Use this part only in non-automotive or non-qualified applications. For automotive designs, select ERJ-3EKF7873V, CRCW0603787KFKEA, or RMCF0603FT787K.

Q: Do all substitute parts fit the same PCB footprint? A: Yes. All parts use the 0603 (1608 Metric) package with 2 terminations. Minor variations in physical dimensions (length 1.55–1.60mm, height 0.50–0.55mm) fall within standard 0603 package tolerances and do not affect PCB assembly compatibility.

Q: Which substitute offers the best availability? A: ERJ-3EKF7873V (Panasonic) has the highest inventory at 171534 units. RMCF0603FT787K (Stackpole) offers 66846 units, and CRCW0603787KFKEA (Vishay Dale) has 28155 units available.

Q: Are all parts RoHS3 compliant? A: Yes. All listed parts, including the main part ERJ-S03F7873V, are RoHS3 compliant with MSL Level 1 (unlimited moisture sensitivity) and REACH unaffected status.

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