RG2012P-3091-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012P-3091-C-T5 is a 3.09 kOhms ±0.25% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. Manufactured by Susumu, this component features anti-sulfur coating and automotive AEC-Q200 qualification, suitable for high-reliability applications in temperature ranges from -55°C to 155°C. The part is currently obsolete, necessitating identification of functionally equivalent active alternatives that maintain electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	3.09 kOhms
Tolerance	±0.25%
Power Rating	0.125W (1/8W)
Package	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±25ppm/°C
Operating Temperature Range	-55°C to 155°C
Features	Anti-Sulfur, Automotive AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following mandatory parameters:

Critical Parameters (Must Match):

Resistance value: 3.09 kOhms
Package type: 0805 (2012 Metric)
Power rating: 0.125W (1/8W) minimum
Composition: Thin Film
Operating temperature range: -55°C to 155°C minimum

Allowable Variations:

Tolerance: May be equal to or tighter (lower) than ±0.25%
Temperature coefficient: May be equal to or lower than ±25ppm/°C
Automotive qualification: AEC-Q200 preferred for direct equivalence; non-automotive alternatives listed as direct substitutes where electrical parameters match
Product status: Active status preferred over obsolete

Substitute parts are grouped into two categories:

Upgrade Substitutes (Susumu RG Series): Active Susumu products with identical resistance, package, and power rating. These parts offer improved tolerance and/or temperature coefficient specifications while maintaining full compatibility with the original design.

Direct Substitutes (Alternative Manufacturers): Active parts from TE Connectivity and YAGEO with matching electrical and mechanical specifications. These provide functional equivalence with different manufacturing sources.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Package	AEC-Q200	Product Status
RG2012P-3091-C-T5	Susumu	3.09 kΩ	±0.25%	0.125	±25	0805	Yes	Obsolete
RG2012N-3091-B-T5	Susumu	3.09 kΩ	±0.1%	0.125	±10	0805	Yes	Active
RG2012N-3091-W-T1	Susumu	3.09 kΩ	±0.05%	0.125	±10	0805	Yes	Active
RG2012P-3091-B-T5	Susumu	3.09 kΩ	±0.1%	0.125	±25	0805	Yes	Active
RG2012P-3091-W-T5	Susumu	3.09 kΩ	±0.05%	0.125	±25	0805	Yes	Active
RG2012V-3091-B-T5	Susumu	3.09 kΩ	±0.1%	0.125	±5	0805	Yes	Active
RG2012V-3091-P-T1	Susumu	3.09 kΩ	±0.02%	0.125	±5	0805	Yes	Active
RG2012V-3091-W-T1	Susumu	3.09 kΩ	±0.05%	0.125	±5	0805	Yes	Active
RG2012V-3091-W-T5	Susumu	3.09 kΩ	±0.05%	0.125	±5	0805	Yes	Active
5-2176092-9	TE Connectivity	3.09 kΩ	±0.1%	0.25	±25	0805	No	Active
RT0805CRD073K09L	YAGEO	3.09 kΩ	±0.25%	0.125	±25	0805	No	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

The RT0805CRD073K09L from YAGEO provides exact electrical and mechanical equivalence to the RG2012P-3091-C-T5. This part maintains the same 3.09 kOhms resistance, ±0.25% tolerance, 0.125W power rating, ±25ppm/°C temperature coefficient, and 0805 package. The part is ROHS3 compliant and currently in active production status. Selection of this part requires no circuit redesign or re-qualification.

For Improved Tolerance (Tighter Specifications):

The RG2012P-3091-B-T5 from Susumu offers improved tolerance (±0.1% versus ±0.25%) while maintaining identical power rating, temperature coefficient, package, and AEC-Q200 automotive qualification. This part is suitable for applications requiring enhanced accuracy without circuit modification. Inventory availability is substantial at 15,129 pieces.

For Improved Temperature Stability (Lower Temperature Coefficient):

The RG2012V series parts (RG2012V-3091-B-T5, RG2012V-3091-W-T1, RG2012V-3091-W-T5) provide temperature coefficients of ±5ppm/°C compared to the original ±25ppm/°C. These parts maintain AEC-Q200 qualification and are suitable for precision applications requiring enhanced thermal stability. The RG2012V-3091-P-T1 offers the tightest tolerance at ±0.02% with ±5ppm/°C temperature coefficient.

For Higher Power Dissipation:

The 5-2176092-9 from TE Connectivity provides 0.25W (1/4W) power rating in the same 0805 package. This part is suitable for applications requiring increased power handling capacity. Note that this part does not carry AEC-Q200 automotive qualification.

For Non-Automotive Applications:

All substitute parts listed maintain ROHS3 compliance and MSL 1 moisture sensitivity rating. The YAGEO RT0805CRD073K09L and TE Connectivity 5-2176092-9 are suitable for non-automotive applications where AEC-Q200 qualification is not required.

Frequently Asked Questions (FAQ)

Q: Can the RG2012P-3091-C-T5 be replaced with a part having tighter tolerance?

A: Yes. Parts with tolerance specifications tighter than ±0.25% (such as ±0.1%, ±0.05%, or ±0.02%) are functionally compatible. Tighter tolerance parts maintain or improve circuit accuracy. The RG2012P-3091-B-T5 (±0.1%) and RG2012N-3091-W-T1 (±0.05%) are direct upgrades.

Q: What is the difference between the RG2012P, RG2012N, and RG2012V series?

A: These Susumu series designations indicate different temperature coefficient specifications. The RG2012P series has ±25ppm/°C, the RG2012N series has ±10ppm/°C, and the RG2012V series has ±5ppm/°C. All three series are compatible with the original part's electrical requirements. Selection depends on thermal stability requirements.

Q: Is the TE Connectivity 5-2176092-9 a suitable replacement despite higher power rating?

A: Yes, for applications where the 0.125W power rating is sufficient. The higher 0.25W rating provides design margin but does not affect electrical performance at lower power levels. The part maintains identical resistance, tolerance, temperature coefficient, and package specifications. However, this part lacks AEC-Q200 automotive qualification.

Q: Can I use the YAGEO RT0805CRD073K09L in automotive applications?

A: The YAGEO RT0805CRD073K09L does not carry AEC-Q200 automotive qualification. Use in automotive applications requires verification that AEC-Q200 qualification is not a design requirement. For automotive applications, Susumu RG series parts with AEC-Q200 rating are recommended.

Q: What is the physical compatibility of substitute parts?

A: All listed substitute parts use the 0805 (2012 Metric) package with identical footprint dimensions of 0.079" L × 0.049" W (2.00mm × 1.25mm). Maximum seated heights range from 0.020" to 0.026" (0.50mm to 0.65mm), which is within standard PCB assembly tolerances. All parts are compatible with existing PCB layouts.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification. All parts also maintain MSL 1 (Unlimited) moisture sensitivity level, indicating no special storage or handling requirements.

Q: What is the difference between Tape & Reel (TR) and other packaging options?

A: The original RG2012P-3091-C-T5 was supplied in bulk packaging. All active substitute parts are available in Tape & Reel (TR) format, which is the standard for automated assembly. TR packaging provides component protection and facilitates high-volume production processes.

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