RC2012F393CS Equivalent & Substitute Parts Reference

Part Overview

The RC2012F393CS is a 39 kOhms ±1% 0.125W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is classified as Active product status with moisture-resistant characteristics and ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct functional interchangeability in circuit applications.

Key Parameters

Parameter	Value
Resistance	39 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
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Number of Terminations	2

Substitute Part Grouping Explanation

Substitute parts for the RC2012F393CS are classified into two categories based on electrical and mechanical compatibility:

Direct Substitutes maintain identical specifications across all critical parameters: 39 kOhms resistance, ±1% tolerance, 0.125W power rating, 0805 package, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, and ROHS3 compliance. These parts are functionally equivalent for standard applications.

Similar Substitutes share the same resistance, tolerance, package, and temperature range but differ in power rating (0.5W instead of 0.125W) or include additional features such as automotive AEC-Q200 certification, pulse withstanding capability, or anti-sulfur treatment. These parts provide enhanced performance characteristics suitable for demanding applications.

The following parameters determine substitution eligibility:

Resistance value: 39 kOhms (mandatory match)
Tolerance: ±1% (mandatory match)
Package: 0805 (2012 Metric) (mandatory match)
Temperature Coefficient: ±100ppm/°C (mandatory match)
Operating Temperature: -55°C ~ 155°C (mandatory match)
RoHS Status: ROHS3 Compliant (mandatory match)
Moisture Sensitivity Level: 1 (Unlimited) (mandatory match)

Power rating and additional features may vary based on application requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temp Coeff	Operating Temp	MSL	RoHS	Packaging Type	Inventory (Pcs)
RC2012F393CS	Samsung Electro-Mechanics	39 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Tape & Reel	957
CR0805-FX-3902ELF	Bourns Inc.	39 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Tape & Reel	14325
CRG0805F39K	TE Connectivity Passive Product	39 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Tape & Reel	179088
ERJ-6ENF3902V	Panasonic Electronic Components	39 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Cut Tape & Digi-Reel	123479
KTR10EZPF3902	Rohm Semiconductor	39 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Tape & Reel	1303
RC0805FR-0739KL	YAGEO	39 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Cut Tape & Digi-Reel	179515
RMCF0805FT39K0	Stackpole Electronics Inc	39 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Tape & Reel	216953
AC0805FR-0739KL	YAGEO	39 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Tape & Reel	27627
CRCW080539K0FKEA	Vishay Dale	39 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Cut Tape & Digi-Reel	4537
CRCW080539K0FKEAHP	Vishay Dale	39 kOhms	±1%	0.5W	0805	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Tape & Reel	4597
ERJ-UP6F3902V	Panasonic Electronic Components	39 kOhms	±1%	0.5W	0805	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Tape & Reel	5729

Engineering Selection Recommendations

For Standard Applications (0.125W Power Rating Required):

Direct substitutes CR0805-FX-3902ELF, CRG0805F39K, RC0805FR-0739KL, and RMCF0805FT39K0 provide full electrical and mechanical equivalence to RC2012F393CS. Selection among these options depends on packaging preference (Tape & Reel versus Cut Tape & Digi-Reel) and inventory availability. All maintain ROHS3 compliance and identical thermal characteristics.

For Automotive Applications (AEC-Q200 Certification Required):

ERJ-6ENF3902V, KTR10EZPF3902, AC0805FR-0739KL, and RMCF0805FT39K0 include automotive AEC-Q200 qualification. These parts are suitable for automotive circuit designs requiring certified component reliability.

For Enhanced Power Handling (0.5W Power Rating):

CRCW080539K0FKEAHP and ERJ-UP6F3902V provide increased power dissipation capability at 0.5W while maintaining identical resistance, tolerance, and package specifications. These parts are suitable for applications requiring higher power margins or pulse withstanding capability.

Compliance Verification:

All listed substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited moisture sensitivity), and identical operating temperature range (-55°C ~ 155°C). No additional compliance verification is required for direct substitution in existing designs.

Frequently Asked Questions (FAQ)

Q: Can CR0805-FX-3902ELF directly replace RC2012F393CS without circuit modification?

A: Yes. CR0805-FX-3902ELF matches all critical electrical parameters (39 kOhms, ±1%, 0.125W) and mechanical specifications (0805 package). No circuit modification is required.

Q: What is the difference between direct substitutes and similar substitutes?

A: Direct substitutes maintain identical power ratings (0.125W) and standard features. Similar substitutes may feature higher power ratings (0.5W), automotive AEC-Q200 certification, pulse withstanding capability, or anti-sulfur treatment. Similar substitutes are compatible but provide enhanced performance characteristics.

Q: Are CRCW080539K0FKEAHP and ERJ-UP6F3902V compatible with designs specified for 0.125W resistors?

A: Yes. These 0.5W parts are mechanically and electrically compatible with 0.125W designs. The higher power rating provides additional thermal margin and does not create incompatibility. However, physical height differences (0.020" versus 0.026") may affect PCB layout in space-constrained applications.

Q: Which substitute offers the highest inventory availability?

A: CRG0805F39K from TE Connectivity Passive Product maintains the highest inventory level at 179,088 pieces.

Q: Do all substitutes maintain the same moisture sensitivity level?

A: Yes. All listed substitutes maintain MSL Level 1 (Unlimited), identical to the RC2012F393CS.

Q: What packaging options are available among substitutes?

A: Substitutes are available in two packaging formats: Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel®. Selection depends on assembly equipment compatibility and procurement requirements.

Q: Are automotive-qualified substitutes required for non-automotive applications?

A: No. Automotive AEC-Q200 certification is optional for non-automotive designs. Standard substitutes without automotive qualification are fully compatible and suitable for general industrial and consumer applications.

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