RG2012N-392-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012N-392-C-T5 is a 3.9 kOhms ±0.25% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component is manufactured by Susumu and features anti-sulfur coating with automotive AEC-Q200 qualification. The part is currently classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility while offering improved performance characteristics or enhanced availability.

Key Parameters

Parameter	Value
Resistance	3.9 kOhms
Tolerance	±0.25%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±10ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RG2012N-392-C-T5 is determined by strict equivalence in the following parameters:

Mandatory Equivalence Parameters:

Resistance value: 3.9 kOhms
Package / Case: 0805 (2012 Metric)
Power rating: 0.125W (1/8W)
Composition: Thin Film
Operating temperature range: -55°C ~ 155°C
Compliance: AEC-Q200 automotive rating, ROHS3 compliance, MSL 1

Substitution Criteria: Substitute parts must maintain all mandatory equivalence parameters. Tolerance, temperature coefficient, and manufacturer identity may vary. Tolerance improvements (tighter specifications) represent upgrades. Temperature coefficient variations within the specified operating range do not affect functional substitution. Parts from different manufacturers (Susumu, Panasonic Electronic Components, YAGEO) are acceptable provided all mandatory parameters align.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Package	Product Status	Height Max (mm)
RG2012N-392-C-T5	Susumu	3.9 kOhms	±0.25%	0.125	±10	0805	Obsolete	0.50
RG2012N-392-B-T5	Susumu	3.9 kOhms	±0.1%	0.125	±10	0805	Active	0.50
RG2012N-392-W-T1	Susumu	3.9 kOhms	±0.05%	0.125	±10	0805	Active	0.50
RG2012N-392-W-T5	Susumu	3.9 kOhms	±0.05%	0.125	±10	0805	Active	0.50
RG2012V-392-B-T5	Susumu	3.9 kOhms	±0.1%	0.125	±5	0805	Active	0.50
RG2012V-392-P-T1	Susumu	3.9 kOhms	±0.02%	0.125	±5	0805	Active	0.50
RG2012V-392-W-T1	Susumu	3.9 kOhms	±0.05%	0.125	±5	0805	Active	0.50
RG2012V-392-W-T5	Susumu	3.9 kOhms	±0.05%	0.125	±5	0805	Active	0.50
ERA-6ARB392V	Panasonic Electronic Components	3.9 kOhms	±0.1%	0.125	±10	0805	Active	0.60
ERA-6ARW392V	Panasonic Electronic Components	3.9 kOhms	±0.05%	0.125	±10	0805	Active	0.60
RT0805WRB073K9L	YAGEO	3.9 kOhms	±0.05%	0.125	±10	0805	Active	0.60

Engineering Selection Recommendations

Primary Substitutes (Susumu RG Series): The RG2012N-392-B-T5, RG2012N-392-W-T1, and RG2012N-392-W-T5 are direct Susumu replacements maintaining identical physical dimensions (0.50mm maximum seated height) and anti-sulfur coating. These parts are active products with improved tolerance specifications. The RG2012N-392-B-T5 offers ±0.1% tolerance, while RG2012N-392-W-T1 and RG2012N-392-W-T5 provide ±0.05% tolerance. All maintain ±10ppm/°C temperature coefficient and AEC-Q200 automotive qualification.

Enhanced Performance Substitutes (Susumu RG V-Series): The RG2012V series components (RG2012V-392-B-T5, RG2012V-392-P-T1, RG2012V-392-W-T1, RG2012V-392-W-T5) offer superior temperature coefficient performance at ±5ppm/°C compared to the original ±10ppm/°C specification. These parts maintain identical package dimensions and AEC-Q200 compliance. Tolerance options range from ±0.02% (RG2012V-392-P-T1) to ±0.1% (RG2012V-392-B-T5).

Cross-Manufacturer Alternatives: The Panasonic ERA-6ARB392V and ERA-6ARW392V provide functionally equivalent substitution with maximum seated height of 0.60mm (compared to 0.50mm for Susumu parts). Both maintain AEC-Q200 automotive qualification and ROHS3 compliance. The ERA-6ARB392V offers ±0.1% tolerance while ERA-6ARW392V provides ±0.05% tolerance.

The YAGEO RT0805WRB073K9L is a ±0.05% tolerance alternative with 0.60mm maximum seated height. This part maintains AEC-Q200 compliance and ROHS3 status.

Product Status Consideration: All substitute parts listed are active products with confirmed inventory availability, eliminating obsolescence risk associated with the original RG2012N-392-C-T5.

Frequently Asked Questions (FAQ)

Q: Can RG2012N-392-B-T5 directly replace RG2012N-392-C-T5 in existing designs? A: Yes. Both parts share identical resistance (3.9 kOhms), power rating (0.125W), package (0805), operating temperature range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. The RG2012N-392-B-T5 provides improved tolerance (±0.1% versus ±0.25%) with no dimensional or functional incompatibility.

Q: What is the difference between RG2012N and RG2012V series? A: The primary difference is temperature coefficient. RG2012N series components have ±10ppm/°C temperature coefficient, while RG2012V series components have ±5ppm/°C temperature coefficient. Both series maintain identical resistance values, power ratings, package dimensions, and automotive compliance. RG2012V represents enhanced thermal stability.

Q: Are Panasonic ERA-6A and YAGEO RT series parts compatible with Susumu RG series? A: Electrical compatibility is maintained across all three manufacturers for the specified 3.9 kOhms ±0.05% to ±0.1% tolerance range in 0805 package. Physical compatibility requires verification of maximum seated height: Susumu parts measure 0.50mm maximum, while Panasonic and YAGEO parts measure 0.60mm maximum. PCB layout and component clearance must accommodate the 0.10mm height difference.

Q: Which substitute offers the best tolerance specification? A: The RG2012V-392-P-T1 provides the tightest tolerance at ±0.02%, followed by RG2012N-392-W-T1, RG2012N-392-W-T5, RG2012V-392-W-T1, RG2012V-392-W-T5, ERA-6ARW392V, and RT0805WRB073K9L, all at ±0.05% tolerance.

Q: Does the anti-sulfur coating affect substitution compatibility? A: The original RG2012N-392-C-T5 includes anti-sulfur coating. Susumu RG series substitutes (RG2012N and RG2012V series) maintain this feature. Panasonic ERA-6A and YAGEO RT series do not specify anti-sulfur coating. For applications requiring anti-sulfur protection, Susumu RG series substitutes are recommended.

Q: What inventory status should influence part selection? A: All listed substitute parts are active products with confirmed stock availability. Susumu RG2012N-392-B-T5 (1159 pcs), RG2012N-392-W-T1 (1123 pcs), and RG2012N-392-W-T5 (950 pcs) provide immediate availability. Panasonic ERA-6ARB392V (21276 pcs) and ERA-6ARW392V (3575 pcs) offer substantial inventory. YAGEO RT0805WRB073K9L (1033 pcs) provides alternative sourcing.

Q: Are all substitute parts ROHS3 compliant and automotive rated? A: Yes. All substitute parts listed maintain ROHS3 compliance and AEC-Q200 automotive qualification, matching the original part's regulatory and quality standards.

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