RG2012N-221-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012N-221-C-T5 is a 220 Ohm ±0.25% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component features anti-sulfur coating and automotive AEC-Q200 qualification, designed for high-reliability applications operating across -55°C to 155°C. The part is currently obsolete, necessitating identification of functionally equivalent active alternatives that maintain electrical and mechanical compatibility while meeting automotive and compliance requirements.

Key Parameters

Parameter	Value
Resistance	220 Ohms
Tolerance	±0.25%
Power Rating	0.125W (1/8W)
Package	0805 (2012 Metric)
Composition	Thin Film
Features	Anti-Sulfur, Automotive AEC-Q200
Temperature Coefficient	±10ppm/°C
Operating Temperature Range	-55°C to 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RG2012N-221-C-T5 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Resistance value: 220 Ohms (exact match required)
Package type: 0805 (2012 Metric) (exact match required)
Power rating: Minimum 0.125W (1/8W) or higher
Composition: Thin film construction
Operating temperature range: Must encompass -55°C to 155°C minimum
Compliance: ROHS3 compliant, AEC-Q200 rated for automotive applications

Tolerance Consideration: The original part specifies ±0.25% tolerance. Substitute parts with equal or tighter tolerance (±0.1%, ±0.05%, ±0.02%) are functionally equivalent and provide improved precision. Parts with looser tolerance are not acceptable substitutes.

Temperature Coefficient: The original part specifies ±10ppm/°C. Substitute parts with equal or superior (lower) temperature coefficient values (±5ppm/°C) are acceptable. This parameter does not restrict substitution.

Packaging Format: The original part uses standard packaging. Substitute parts in Tape & Reel (TR) format are mechanically and electrically compatible.

All identified substitute parts maintain 220 Ohm resistance, 0805 package geometry, thin film composition, and automotive AEC-Q200 qualification. Substitutes are grouped by tolerance specification, with tighter tolerances representing performance upgrades.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Product Status	AEC-Q200
RG2012N-221-C-T5	Susumu	220 Ω	±0.25%	0.125	±10	-55 to 155	Obsolete	Yes
RG2012N-221-B-T5	Susumu	220 Ω	±0.1%	0.125	±10	-55 to 155	Active	Yes
RG2012N-221-W-T1	Susumu	220 Ω	±0.05%	0.125	±10	-55 to 155	Active	Yes
RG2012N-221-W-T5	Susumu	220 Ω	±0.05%	0.125	±10	-55 to 155	Active	Yes
RG2012V-221-B-T5	Susumu	220 Ω	±0.1%	0.125	±5	-55 to 155	Active	Yes
RG2012V-221-P-T1	Susumu	220 Ω	±0.02%	0.125	±5	-55 to 155	Active	Yes
RG2012V-221-W-T1	Susumu	220 Ω	±0.05%	0.125	±5	-55 to 155	Active	Yes
RG2012V-221-W-T5	Susumu	220 Ω	±0.05%	0.125	±5	-55 to 155	Active	Yes
RT0805WRB07220RL	YAGEO	220 Ω	±0.05%	0.125	±10	-55 to 155	Active	No
TNPW0805220RBYEA	Vishay Dale	220 Ω	±0.1%	0.26	±10	-55 to 175	Active	Yes

Engineering Selection Recommendations

Primary Substitutes (Susumu RG Series - Automotive AEC-Q200):

The Susumu RG2012N and RG2012V series parts provide direct functional equivalence with active product status and full automotive qualification. Selection within this family is determined by tolerance and temperature coefficient requirements:

RG2012N-221-B-T5 and RG2012N-221-W-T1 / RG2012N-221-W-T5: These parts maintain the ±10ppm/°C temperature coefficient of the original while offering improved tolerance specifications (±0.1% and ±0.05% respectively). Both are active products with AEC-Q200 certification and anti-sulfur coating.
RG2012V Series (RG2012V-221-B-T5, RG2012V-221-P-T1, RG2012V-221-W-T1, RG2012V-221-W-T5): These variants provide superior temperature coefficient performance (±5ppm/°C) with tolerance options ranging from ±0.02% to ±0.1%. All maintain AEC-Q200 automotive qualification and anti-sulfur protection. These represent performance upgrades suitable for precision-critical applications.

Secondary Substitute (Cross-Manufacturer):

TNPW0805220RBYEA (Vishay Dale): This part offers higher power rating (0.26W versus 0.125W), extended operating temperature range (-55°C to 175°C), and AEC-Q200 automotive qualification with anti-sulfur and moisture-resistant coating. The ±0.1% tolerance and ±10ppm/°C temperature coefficient match the original specification profile. This part is suitable for applications requiring thermal margin or higher power dissipation capability.

Alternative Substitute (Non-Automotive):

RT0805WRB07220RL (YAGEO): This part provides ±0.05% tolerance and active product status but lacks AEC-Q200 automotive certification. It is suitable only for non-automotive applications where automotive qualification is not required.

Frequently Asked Questions (FAQ)

Q: Can I substitute the obsolete RG2012N-221-C-T5 with any of the listed alternatives?

A: Substitution depends on application requirements. All Susumu RG series alternatives (RG2012N and RG2012V) maintain full automotive AEC-Q200 qualification and are suitable for automotive applications. The Vishay Dale TNPW0805220RBYEA also carries AEC-Q200 certification. The YAGEO RT0805WRB07220RL lacks automotive certification and is suitable only for non-automotive applications.

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

A: The primary difference is temperature coefficient specification. RG2012N series parts have ±10ppm/°C temperature coefficient, matching the original part. RG2012V series parts have superior ±5ppm/°C temperature coefficient, providing better stability across the operating temperature range. Both series maintain identical resistance, power rating, package, and automotive qualification.

Q: Does tolerance affect mechanical compatibility?

A: No. All substitute parts use identical 0805 (2012 Metric) package geometry with the same physical dimensions (0.079" L × 0.049" W, 0.020" maximum seated height). Tolerance differences affect electrical precision only, not mechanical fit or PCB layout.

Q: Why does the TNPW0805220RBYEA have higher power rating than the original?

A: The Vishay Dale part is rated for 0.26W versus the original 0.125W. This higher power rating provides thermal margin in applications where the original 0.125W rating is marginal. The part remains electrically compatible at the 0.125W operating point and can be used as a direct substitute with improved reliability margin.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the original part's environmental compliance status.

Q: What is the significance of the packaging designation (T1 versus T5)?

A: The T1 and T5 designations refer to tape reel specifications and do not affect electrical or mechanical compatibility. Both formats are standard Tape & Reel (TR) packaging suitable for automated assembly processes.

Q: Can I use the YAGEO RT0805WRB07220RL in an automotive application?

A: The YAGEO part lacks AEC-Q200 automotive certification. It is not suitable for automotive applications where AEC-Q200 qualification is a design requirement or specification mandate. Use only Susumu RG series or Vishay Dale TNPW series parts for automotive applications.

Q: Which substitute offers the best tolerance specification?

A: The RG2012V-221-P-T1 offers the tightest tolerance at ±0.02%, providing the highest precision. For applications requiring high precision with improved temperature stability, this part combines ±0.02% tolerance with ±5ppm/°C temperature coefficient.

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