RC2012J393CS 39kΩ 0805 SMD Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC2012J393CS is a 39 kΩ ±5% thick film chip resistor in 0805 (2012 metric) package manufactured by Samsung Electro-Mechanics. This component is rated for 0.125W (1/8W) power dissipation with moisture-resistant construction and operates across -55°C to 155°C. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating) and mechanical compatibility (package size, termination count, physical dimensions). Alternative sources provide identical or enhanced performance characteristics while maintaining the same footprint and thermal operating range.

Key Parameters

Parameter	Value	Specification Basis
Resistance	39 kΩ	Core electrical specification
Tolerance	±5%	Accuracy classification
Power Rating	0.125W (1/8W)	Thermal dissipation capability
Package / Case	0805 (2012 Metric)	Physical footprint and mounting
Composition	Thick Film	Construction technology
Temperature Coefficient	±100ppm/°C	Stability over temperature range
Operating Temperature Range	-55°C to 155°C	Environmental limits
Terminations	2	Connection points
RoHS Status	ROHS3 Compliant	Environmental regulation compliance
MSL Rating	1 (Unlimited)	Moisture sensitivity classification

Substitute Part Grouping Explanation

Substitution relationships are established through strict alignment of electrical and mechanical parameters. The RC2012J393CS baseline specification requires:

Primary Matching Criteria:

Resistance: 39 kΩ (exact match required)
Package: 0805 (2012 Metric) (exact match required)
Power Rating: 0.125W minimum (equal or higher acceptable)
Tolerance: ±5% minimum (equal or tighter acceptable)
Composition: Thick Film
Temperature Coefficient: ±100ppm/°C
Operating Range: -55°C to 155°C minimum
Terminations: 2
RoHS3 Compliance: Required

Substitution Categories:

Direct Equivalents maintain all baseline specifications including ±5% tolerance and 0.125W power rating from alternative manufacturers.

Upgrade Substitutes provide enhanced tolerance (±1% vs ±5%) or additional certifications (AEC-Q200 automotive qualification) while maintaining identical resistance, package, power rating, and operating range. These parts are electrically and mechanically interchangeable with superior performance characteristics.

Similar Parts share core specifications but differ in tolerance, power rating, or specialized features. These require design verification for specific application requirements.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp (°C)	Features	AEC-Q200	RoHS3
RC2012J393CS	Samsung Electro-Mechanics	39 kΩ	±5%	0.125	0805	±100ppm/°C	-55 to 155	Moisture Resistant	No	Yes
RC0805JR-0739KL	YAGEO	39 kΩ	±5%	0.125	0805	±100ppm/°C	-55 to 155	Moisture Resistant	No	Yes
AC0805FR-0739KL	YAGEO	39 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155	Automotive AEC-Q200, Moisture Resistant	Yes	Yes
CRG0805F39K	TE Connectivity Passive Product	39 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155	None specified	No	Yes
ERJ-6ENF3902V	Panasonic Electronic Components	39 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155	Automotive AEC-Q200	Yes	Yes
KTR10EZPF3902	Rohm Semiconductor	39 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155	Automotive AEC-Q200, High Voltage	Yes	Yes
RC0805FR-0739KL	YAGEO	39 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155	Moisture Resistant	No	Yes
RMCF0805FT39K0	Stackpole Electronics Inc	39 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155	Automotive AEC-Q200	Yes	Yes
CRCW080539K0FKEA	Vishay Dale	39 kΩ	±1%	0.125	0805	±100ppm/°C	-55 to 155	Automotive AEC-Q200	Yes	Yes
CRCW080539K0FKEAHP	Vishay Dale	39 kΩ	±1%	0.5	0805	±100ppm/°C	-55 to 155	Automotive AEC-Q200, Pulse Withstanding	Yes	Yes
CRGH0805J39K	TE Connectivity Passive Product	39 kΩ	±5%	0.333	0805	±100ppm/°C	-55 to 155	None specified	No	Yes

Engineering Selection Recommendations

Direct Equivalent Selection (RC0805JR-0739KL): YAGEO RC0805JR-0739KL provides identical electrical and mechanical specifications to the RC2012J393CS baseline. This part maintains ±5% tolerance, 0.125W power rating, moisture-resistant thick film construction, and 0805 package compatibility. Selection is appropriate for applications requiring equivalent performance from an alternative qualified source with high inventory availability (80,414 units).

Upgrade Substitute Selection (±1% Tolerance Options): Parts AC0805FR-0739KL, CRG0805F39K, ERJ-6ENF3902V, KTR10EZPF3902, RC0805FR-0739KL, and RMCF0805FT39K0 provide tighter ±1% tolerance specification while maintaining all other baseline parameters. These upgrades are suitable for applications requiring improved accuracy without design modification. AEC-Q200 certified options (AC0805FR-0739KL, ERJ-6ENF3902V, KTR10EZPF3902, RMCF0805FT39K0, CRCW080539K0FKEA) are specified for automotive applications.

Enhanced Power Rating Option (CRCW080539K0FKEAHP): Vishay Dale CRCW080539K0FKEAHP increases power dissipation to 0.5W (1/2W) with pulse withstanding capability while maintaining 39 kΩ resistance and 0805 package. This part is suitable for applications requiring higher thermal margin or pulse current handling, with AEC-Q200 automotive qualification.

Higher Power Density Option (CRGH0805J39K): TE Connectivity CRGH0805J39K provides 0.333W (1/3W) power rating with ±5% tolerance matching the baseline specification. This part accommodates applications requiring intermediate power dissipation between standard 0.125W and 0.5W ratings.

All recommended substitutes maintain ROHS3 compliance, MSL 1 rating, and -55°C to 155°C operating range. Physical dimensions and termination count remain consistent across all options, ensuring PCB footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can RC0805JR-0739KL directly replace RC2012J393CS without design changes?

A: Yes. RC0805JR-0739KL from YAGEO is a direct equivalent providing identical resistance (39 kΩ), tolerance (±5%), power rating (0.125W), package (0805), and operating temperature range (-55°C to 155°C). Both parts use thick film construction with moisture-resistant properties and ROHS3 compliance. No circuit modifications are required.

Q: What is the advantage of selecting a ±1% tolerance part over the ±5% baseline?

A: ±1% tolerance parts (AC0805FR-0739KL, CRG0805F39K, ERJ-6ENF3902V, KTR10EZPF3902, RC0805FR-0739KL, RMCF0805FT39K0) provide tighter resistance accuracy, reducing circuit performance variation. Applications requiring precise voltage dividers, filter tuning, or gain-setting networks benefit from improved tolerance. Electrical and mechanical compatibility remains unchanged; substitution requires no design modification.

Q: Are AEC-Q200 certified parts suitable for non-automotive applications?

A: Yes. AEC-Q200 certification indicates automotive-grade reliability and environmental stress testing. These parts (AC0805FR-0739KL, ERJ-6ENF3902V, KTR10EZPF3902, RMCF0805FT39K0, CRCW080539K0FKEA) meet or exceed commercial-grade specifications and are fully compatible with standard industrial and consumer applications. Selection is based on availability and performance requirements rather than application restriction.

Q: What is the difference between CRCW080539K0FKEA and CRCW080539K0FKEAHP?

A: Both parts share 39 kΩ resistance, ±1% tolerance, 0805 package, and AEC-Q200 certification. CRCW080539K0FKEA is rated 0.125W (1/8W), while CRCW080539K0FKEAHP is rated 0.5W (1/2W) with pulse withstanding capability. The higher power rating part accommodates applications with greater thermal dissipation or transient current requirements. Physical dimensions differ slightly (height 0.020" vs 0.020" maximum seated height).

Q: Can CRGH0805J39K substitute for RC2012J393CS?

A: CRGH0805J39K provides 39 kΩ resistance and ±5% tolerance matching the baseline specification. However, power rating increases to 0.333W (1/3W) and physical dimensions change to 0.083" L x 0.051" W (2.10mm x 1.30mm) versus 0.079" L x 0.049" W (2.00mm x 1.25mm). Verify PCB layout compatibility before substitution. Electrical performance remains equivalent for standard applications.

Q: Are all substitute parts available in Tape & Reel (TR) packaging?

A: Packaging varies by manufacturer and part number. RC2012J393CS, AC0805FR-0739KL, CRG0805F39K, KTR10EZPF3902, RMCF0805FT39K0, and CRCW080539K0FKEAHP are supplied in Tape & Reel (TR). RC0805JR-0739KL, RC0805FR-0739KL, ERJ-6ENF3902V, and CRCW080539K0FKEA are supplied in Cut Tape (CT) & Digi-Reel®. Verify packaging requirements with procurement specifications before ordering.

Q: What is the moisture sensitivity level (MSL) for all substitute parts?

A: All listed substitute parts maintain MSL 1 (Unlimited) rating, identical to the RC2012J393CS baseline. This classification indicates no moisture sensitivity restrictions and unlimited shelf life under standard storage conditions. No special handling, baking, or moisture barrier packaging is required.

Q: Do all parts comply with REACH and RoHS regulations?

A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH Unaffected status, matching the baseline RC2012J393CS specification. ECCN classification is EAR99 and HTSUS code is 8533.21.0030 across all options, confirming regulatory alignment for commercial distribution.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message