ERJ-S03F7681V Equivalent & Substitute Parts

Part Overview

The ERJ-S03F7681V is a 7.68 kOhms ±1% thick film chip resistor manufactured by Panasonic Electronic Components in 0603 (1608 Metric) package format. This component is rated for 0.1W power dissipation and features anti-sulfur construction with automotive AEC-Q200 qualification. The part is currently active in production with 792 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	7.68 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

Substitution eligibility for the ERJ-S03F7681V is determined by strict equivalence across the following parameters:

Resistance value: 7.68 kOhms
Tolerance: ±1%
Power rating: 0.1W
Package: 0603 (1608 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
RoHS3 compliance
MSL rating: 1 (Unlimited)

All substitute parts listed meet these core electrical and mechanical requirements. Variations in secondary features (such as anti-sulfur construction or moisture resistance) do not affect functional substitutability for standard applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	RoHS	MSL	Inventory (Pcs)
ERJ-S03F7681V	Panasonic Electronic Components	7.68 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	792
ERJ-3EKF7681V	Panasonic Electronic Components	7.68 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	53466
AC0603FR-077K68L	YAGEO	7.68 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	9144
CR0603-FX-7681ELF	Bourns Inc.	7.68 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	28093
CRCW06037K68FKEA	Vishay Dale	7.68 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	29333
RC0603FR-077K68L	YAGEO	7.68 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	40941
RMCF0603FT7K68	Stackpole Electronics Inc	7.68 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	22876

Engineering Selection Recommendations

All listed substitute parts are functionally equivalent to the ERJ-S03F7681V and maintain identical electrical performance specifications. Selection among these alternatives should be based on:

Availability and Lead Time: ERJ-3EKF7681V (Panasonic) offers the highest inventory level at 53,466 units, providing optimal supply chain security. RC0603FR-077K68L (YAGEO) and CRCW06037K68FKEA (Vishay Dale) provide secondary sourcing options with substantial stock levels.

Compliance and Certifications: All substitute parts carry ROHS3 compliance and MSL 1 rating. ERJ-S03F7681V, ERJ-3EKF7681V, CRCW06037K68FKEA, and RMCF0603FT7K68 include automotive AEC-Q200 qualification. AC0603FR-077K68L and RC0603FR-077K68L include moisture-resistant construction. CR0603-FX-7681ELF includes moisture-resistant features without explicit AEC-Q200 marking.

Packaging Format: All parts are supplied in 0603 (1608 Metric) package with identical footprint compatibility. CRCW06037K68FKEA is supplied in Cut Tape (CT) & Digi-Reel format, while all others use standard Tape & Reel (TR) packaging.

Frequently Asked Questions (FAQ)

Q: Can ERJ-3EKF7681V directly replace ERJ-S03F7681V in automotive applications?

A: Yes. Both parts meet identical electrical specifications (7.68 kOhms ±1%, 0.1W, 0603 package) and carry AEC-Q200 automotive qualification. The primary difference is the series designation (ERJ-3EK versus ERJ-S03), which reflects manufacturing line differences but does not affect functional performance or reliability.

Q: What is the difference between anti-sulfur and moisture-resistant construction?

A: Anti-sulfur construction (ERJ-S03F7681V) protects against sulfur-containing atmospheric corrosion. Moisture-resistant construction (AC0603FR-077K68L, RC0603FR-077K68L, CR0603-FX-7681ELF) provides protection against humidity ingress. Both are valid for general industrial and automotive applications. Selection depends on specific environmental exposure requirements.

Q: Are there dimensional differences between substitute parts?

A: Nominal dimensions are 0603 (1608 Metric) for all parts. Minor variations exist in maximum seated height: ERJ-S03F7681V, AC0603FR-077K68L, RC0603FR-077K68L, and CR0603-FX-7681ELF measure 0.022" (0.55mm) maximum, while CRCW06037K68FKEA and RMCF0603FT7K68 measure 0.020" (0.50mm) and 0.022" (0.55mm) respectively. These variations remain within standard 0603 package tolerances and do not affect PCB layout compatibility.

Q: Which substitute offers the best supply chain position?

A: ERJ-3EKF7681V provides the strongest supply position with 53,466 units in inventory, followed by CRCW06037K68FKEA (29,333 units) and RC0603FR-077K68L (40,941 units). For critical applications requiring multiple qualified sources, combining ERJ-3EKF7681V with RC0603FR-077K68L or CRCW06037K68FKEA provides redundancy across different manufacturers.

Q: Is AEC-Q200 qualification required for all applications?

A: AEC-Q200 qualification is mandatory for automotive under-hood and high-reliability applications. For general industrial or consumer applications, non-AEC-Q200 parts (CR0603-FX-7681ELF, AC0603FR-077K68L, RC0603FR-077K68L) are functionally equivalent. Verify application requirements before selection.

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