ERJ-S06F3921V Equivalent & Substitute Parts

Part Overview

The ERJ-S06F3921V is a 3.92 kOhms ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Panasonic Electronic Components. This part features anti-sulfur coating and automotive AEC-Q200 qualification, designed for applications requiring high reliability in harsh environments. The part is currently active in production with 694 units in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when supply chain optimization is required, or when design flexibility allows for alternative qualified sources meeting identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Resistance	3.92 kOhms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 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-S06F3921V is determined by strict equivalence across the following parameters:

Resistance value: 3.92 kOhms
Tolerance: ±1%
Power rating: 0.125W (1/8W)
Package: 0805 (2012 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
RoHS compliance: ROHS3 Compliant
Moisture sensitivity: MSL 1 (Unlimited)

All substitute parts listed meet these core electrical and mechanical requirements. Variations in physical dimensions (height, length, width) within the 0805 package specification do not affect functional substitutability. Feature differences such as anti-sulfur coating or automotive qualification (AEC-Q200) represent additional capabilities and do not preclude substitution in applications where these features are not mandatory.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Operating Temp (°C)	Features	Product Status	Inventory (Pcs)
ERJ-S06F3921V	Panasonic Electronic Components	3.92 kOhms	±1%	0.125	0805	±100	-55 ~ 155	Anti-Sulfur, AEC-Q200	Active	694
ERJ-6ENF3921V	Panasonic Electronic Components	3.92 kOhms	±1%	0.125	0805	±100	-55 ~ 155	AEC-Q200	Active	63073
CR0805-FX-3921ELF	Bourns Inc.	3.92 kOhms	±1%	0.125	0805	±100	-55 ~ 155	Moisture Resistant	Active	53571
CRCW08053K92FKEA	Vishay Dale	3.92 kOhms	±1%	0.125	0805	±100	-55 ~ 155	AEC-Q200	Active	36241
CRCW08053K92FKEB	Vishay Dale	3.92 kOhms	±1%	0.125	0805	±100	-55 ~ 155	AEC-Q200	Discontinued at DiGi Electronics	20995
RC0805FR-073K92L	YAGEO	3.92 kOhms	±1%	0.125	0805	±100	-55 ~ 155	Moisture Resistant	Active	22886
RMCF0805FT3K92	Stackpole Electronics Inc	3.92 kOhms	±1%	0.125	0805	±100	-55 ~ 155	AEC-Q200	Active	131297

Engineering Selection Recommendations

All listed substitute parts are electrically and mechanically equivalent to the ERJ-S06F3921V and meet ROHS3 compliance and MSL 1 requirements.

For applications requiring automotive qualification, select from parts carrying AEC-Q200 certification: ERJ-6ENF3921V (Panasonic), CRCW08053K92FKEA (Vishay Dale), CRCW08053K92FKEB (Vishay Dale), or RMCF0805FT3K92 (Stackpole Electronics Inc).

For applications where automotive qualification is not required, CR0805-FX-3921ELF (Bourns) and RC0805FR-073K92L (YAGEO) provide equivalent performance with moisture-resistant characteristics.

CRCW08053K92FKEB is discontinued at DiGi Electronics and should not be selected for new designs requiring long-term availability.

ERJ-6ENF3921V offers the highest inventory availability (63,073 units) among active parts and represents a direct Panasonic alternative within the same manufacturer family.

Frequently Asked Questions (FAQ)

Q: Can ERJ-S06F3921V be replaced with ERJ-6ENF3921V?

A: Yes. Both parts are manufactured by Panasonic, share identical electrical specifications (3.92 kOhms ±1%, 0.125W, ±100ppm/°C, -55°C ~ 155°C), and are packaged in 0805 (2012 Metric). The primary difference is that ERJ-6ENF3921V lacks the anti-sulfur coating present in ERJ-S06F3921V. In applications where anti-sulfur protection is not specified, this substitution is valid.

Q: What is the difference between AEC-Q200 qualified and non-qualified parts?

A: AEC-Q200 certification indicates the part meets automotive industry reliability standards. Parts with this certification (ERJ-6ENF3921V, CRCW08053K92FKEA, CRCW08053K92FKEB, RMCF0805FT3K92) are suitable for automotive applications. Parts without this certification (CR0805-FX-3921ELF, RC0805FR-073K92L) are suitable for general industrial and consumer applications. Selection depends on application requirements, not on technical performance equivalence.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts are available in 0805 (2012 Metric) package. Most are supplied in Tape & Reel (TR) format matching the primary part. RC0805FR-073K92L is supplied in Cut Tape (CT) & Digi-Reel® format. Package format does not affect electrical or mechanical compatibility; it affects only handling and assembly logistics.

Q: Can I use CRCW08053K92FKEB in a new design?

A: CRCW08053K92FKEB is discontinued at DiGi Electronics and should not be selected for new designs. Use CRCW08053K92FKEA instead, which is active and offers identical specifications with continued availability.

Q: What does Moisture Sensitivity Level 1 mean?

A: MSL 1 indicates unlimited shelf life without moisture control requirements. All listed parts carry MSL 1 rating, meaning they can be stored and handled without special moisture protection measures.

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