RC2012J395CS 3.9 MOhms ±5% 1/8W 0805 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC2012J395CS is a 3.9 MOhms ±5% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with RoHS3 compliance and MSL 1 rating. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design optimization across multiple manufacturers including YAGEO, Rohm Semiconductor, Stackpole Electronics Inc, and Vishay Dale.

Key Parameters

Parameter	Value
Resistance	3.9 MOhms
Tolerance	±5%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thick Film
Operating Temperature Range	-55°C ~ 155°C
Temperature Coefficient	±100ppm/°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the RC2012J395CS is determined by strict equivalence in the following parameters:

Critical Parameters (Must Match):

Resistance value: 3.9 MOhms
Package / Case: 0805 (2012 Metric)
Power rating: 0.125W (1/8W)
Composition: Thick Film
Operating temperature range: -55°C ~ 155°C
RoHS3 compliance
MSL 1 rating

Allowable Variations:

Tolerance: ±5% (main part) to ±1% (substitute parts) — tighter tolerance is acceptable
Temperature coefficient: ±100ppm/°C to ±200ppm/°C — within acceptable drift range
Height seated maximum: 0.026" (0.65mm) to 0.020" (0.50mm) — within PCB assembly clearance
Additional certifications: Automotive AEC-Q200 qualification is an upgrade feature, not a restriction

Substitute parts are grouped as Direct Equivalent (matching tolerance), Upgrade (improved tolerance and/or automotive qualification), and Similar (alternative manufacturer with equivalent specifications).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Op. Temp (°C)	Height Max (mm)	AEC-Q200	Inventory (Pcs)
RC2012J395CS	Samsung Electro-Mechanics	3.9 MOhms	±5%	0.125	0805	±100	-55 ~ 155	0.65	No	875
RC0805JR-073M9L	YAGEO	3.9 MOhms	±5%	0.125	0805	±100	-55 ~ 155	0.60	No	4303
KTR10EZPF3904	Rohm Semiconductor	3.9 MOhms	±1%	0.125	0805	±100	-55 ~ 155	0.65	Yes	6504
RC0805FR-073M9L	YAGEO	3.9 MOhms	±1%	0.125	0805	±100	-55 ~ 155	0.60	No	17199
RMCF0805FT3M90	Stackpole Electronics Inc	3.9 MOhms	±1%	0.125	0805	±200	-55 ~ 155	0.65	Yes	44428
CRCW08053M90FKEA	Vishay Dale	3.9 MOhms	±1%	0.125	0805	±100	-55 ~ 155	0.50	Yes	14026

Engineering Selection Recommendations

Direct Equivalent Selection: RC0805JR-073M9L (YAGEO) provides direct functional equivalence to RC2012J395CS with identical resistance, tolerance (±5%), and temperature coefficient specifications. This part maintains compatibility with original design parameters while offering higher inventory availability (4303 units).

Upgrade Selection for Enhanced Performance: KTR10EZPF3904 (Rohm Semiconductor), RC0805FR-073M9L (YAGEO), RMCF0805FT3M90 (Stackpole Electronics Inc), and CRCW08053M90FKEA (Vishay Dale) provide ±1% tolerance improvement over the original ±5% specification. These parts are suitable for applications requiring tighter resistance tolerance without design modification. KTR10EZPF3904 and RMCF0805FT3M90 include Automotive AEC-Q200 qualification for applications requiring automotive-grade reliability. CRCW08053M90FKEA offers the lowest seated height (0.50mm) for space-constrained PCB layouts.

Inventory and Availability: RMCF0805FT3M90 (Stackpole Electronics Inc) provides the highest inventory level (44428 units), followed by RC0805FR-073M9L (YAGEO, 17199 units) and CRCW08053M90FKEA (Vishay Dale, 14026 units). All substitute parts maintain RoHS3 compliance and MSL 1 rating consistent with the main part.

Frequently Asked Questions (FAQ)

Q: Can RC0805JR-073M9L replace RC2012J395CS directly without design changes? A: Yes. RC0805JR-073M9L is a direct equivalent with identical resistance (3.9 MOhms), tolerance (±5%), power rating (0.125W), package (0805), and operating temperature range (-55°C ~ 155°C). The seated height difference (0.60mm vs 0.65mm) is within standard PCB assembly tolerances.

Q: What is the advantage of selecting KTR10EZPF3904 or RMCF0805FT3M90 over the direct equivalent? A: These upgrade parts provide ±1% tolerance versus ±5% tolerance, reducing resistance drift in the circuit. Both include Automotive AEC-Q200 qualification, suitable for automotive and high-reliability applications. No design changes are required; these parts are pin-compatible and functionally superior.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts (RC0805JR-073M9L, KTR10EZPF3904, RC0805FR-073M9L, RMCF0805FT3M90, CRCW08053M90FKEA) are RoHS3 compliant with MSL 1 rating, matching the original RC2012J395CS specifications.

Q: Does package size differ between substitute parts? A: No. All substitute parts use the 0805 (2012 Metric) package. Seated height varies slightly (0.50mm to 0.65mm maximum), which is within standard PCB assembly clearance specifications and does not affect component placement or functionality.

Q: Which substitute part has the best temperature stability? A: RC0805JR-073M9L, KTR10EZPF3904, RC0805FR-073M9L, and CRCW08053M90FKEA all specify ±100ppm/°C temperature coefficient, matching the original part. RMCF0805FT3M90 specifies ±200ppm/°C, which is acceptable for most applications but represents slightly higher temperature drift.

Q: Can I use CRCW08053M90FKEA in space-constrained designs? A: Yes. CRCW08053M90FKEA offers the lowest seated height (0.50mm maximum) among all listed parts, making it suitable for high-density PCB layouts with minimal vertical clearance requirements.

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