Equivalent & Substitute Parts for ERJ-S03F2102V

Part Overview

The ERJ-S03F2102V is a 21 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 properties with automotive AEC-Q200 qualification. The part is currently active in production with 1148 units in stock. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance ratings are maintained across alternative manufacturers.

Key Parameters

Parameter	Value
Resistance	21 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
Number of Terminations	2
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: resistance value (21 kOhms), tolerance (±1%), power rating (0.1W), package format (0603), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and termination count (2). All identified substitute parts maintain these core electrical and mechanical specifications. Compliance certifications (AEC-Q200, RoHS3, REACH status) and packaging format (Tape & Reel or Cut Tape) are secondary differentiators that do not affect functional equivalence but may influence procurement and application suitability.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Composition	RoHS Status	AEC-Q200	Packaging Type	Inventory (Pcs)
ERJ-S03F2102V	Panasonic Electronic Components	21 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Thick Film	ROHS3 Compliant	Yes	Tape & Reel (TR)	1148
ERJ-3EKF2102V	Panasonic Electronic Components	21 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Thick Film	ROHS3 Compliant	Yes	Cut Tape (CT) & Digi-Reel®	92845
AC0603FR-0721KL	YAGEO	21 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Thick Film	ROHS3 Compliant	Yes	Tape & Reel (TR)	9195
CR0603-FX-2102ELF	Bourns Inc.	21 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Thick Film	ROHS3 Compliant	No	Tape & Reel (TR)	31329
CRCW060321K0FKEA	Vishay Dale	21 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Thick Film	ROHS3 Compliant	Yes	Tape & Reel (TR)	35705
CRCW060321K0FKTA	Vishay Dale	21 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Thick Film	RoHS non-compliant	Yes	Tape & Reel (TR)	21279
RC0603FR-0721KL	YAGEO	21 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Thick Film	ROHS3 Compliant	No	Tape & Reel (TR)	5400
RMCF0603FT21K0	Stackpole Electronics Inc	21 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Thick Film	ROHS3 Compliant	Yes	Tape & Reel (TR)	83961

Engineering Selection Recommendations

All substitute parts listed maintain electrical and mechanical equivalence to the ERJ-S03F2102V. Selection among substitutes should be based on compliance requirements and product status:

Parts with AEC-Q200 certification and ROHS3 compliance are ERJ-3EKF2102V, AC0603FR-0721KL, CRCW060321K0FKEA, and RMCF0603FT21K0. These parts satisfy automotive qualification requirements identical to the primary part.

CR0603-FX-2102ELF and RC0603FR-0721KL are ROHS3 compliant but lack AEC-Q200 certification. These parts are suitable for non-automotive applications requiring RoHS compliance.

CRCW060321K0FKTA is RoHS non-compliant and REACH affected. This part should be selected only when legacy component specifications are required and regulatory compliance is not a constraint.

All parts are active in production status. Inventory availability ranges from 5400 to 92845 units across substitute options.

Frequently Asked Questions (FAQ)

Q: Can ERJ-3EKF2102V replace ERJ-S03F2102V in automotive applications?

A: Yes. Both parts are manufactured by Panasonic Electronic Components with identical electrical specifications (21 kOhms ±1%, 0.1W, ±100ppm/°C), 0603 package format, and AEC-Q200 automotive qualification. The primary difference is packaging format: ERJ-S03F2102V is supplied in Tape & Reel, while ERJ-3EKF2102V is supplied in Cut Tape & Digi-Reel®.

Q: Are YAGEO AC0603FR-0721KL and RC0603FR-0721KL interchangeable?

A: Both YAGEO parts share identical electrical specifications and 0603 package format. AC0603FR-0721KL carries AEC-Q200 certification, while RC0603FR-0721KL does not. Selection depends on whether automotive qualification is required for the application.

Q: What is the difference between Vishay Dale CRCW060321K0FKEA and CRCW060321K0FKTA?

A: Both parts have identical electrical specifications and AEC-Q200 certification. CRCW060321K0FKEA is ROHS3 compliant and REACH unaffected. CRCW060321K0FKTA is RoHS non-compliant and REACH affected. Selection should be based on regulatory requirements for the end application.

Q: Can non-AEC-Q200 parts substitute in automotive circuits?

A: Non-AEC-Q200 parts (CR0603-FX-2102ELF, RC0603FR-0721KL) maintain electrical and mechanical equivalence but lack automotive qualification. Use in automotive applications requires design review and qualification assessment.

Q: Does package format affect electrical performance?

A: No. Tape & Reel and Cut Tape packaging formats do not affect electrical performance. Selection is based on assembly equipment compatibility and procurement workflow requirements.

Q: Are all substitute parts MSL 1 rated?

A: Yes. All listed parts, including the primary ERJ-S03F2102V, carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no moisture precautions are required during storage or handling.

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