RG2012N-203-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012N-203-C-T5 is a 20 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 across -55°C to 155°C operating temperature range. The part is currently obsolete, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility while offering active product status and improved specifications where applicable.

Key Parameters

Parameter	Value
Resistance	20 kOhms
Tolerance	±0.25%
Power Rating	0.125W (1/8W)
Package	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±10ppm/°C
Operating Temperature Range	-55°C to 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the RG2012N-203-C-T5 is determined by strict equivalence in the following parameters: resistance value (20 kOhms), package type (0805/2012 Metric), composition (thin film), temperature coefficient (±10ppm/°C), operating temperature range (-55°C to 155°C), and automotive qualification (AEC-Q200). Tolerance specifications may be tighter than the original ±0.25%, representing functional upgrades. Power rating may exceed 0.125W without compromising compatibility. Substitute parts must maintain identical physical dimensions and termination count (2 terminations). All identified substitutes meet these criteria and are available in active product status with ROHS3 compliance.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff	Op Temp Range	Package	AEC-Q200	Product Status
RG2012N-203-C-T5	Susumu	20 kOhms	±0.25%	0.125	±10ppm/°C	-55°C to 155°C	0805	Yes	Obsolete
RG2012N-203-B-T5	Susumu	20 kOhms	±0.1%	0.125	±10ppm/°C	-55°C to 155°C	0805	Yes	Active
RG2012N-203-W-T1	Susumu	20 kOhms	±0.05%	0.125	±10ppm/°C	-55°C to 155°C	0805	Yes	Active
RG2012N-203-W-T5	Susumu	20 kOhms	±0.05%	0.125	±10ppm/°C	-55°C to 155°C	0805	Yes	Active
ERA-6ARB203V	Panasonic Electronic Components	20 kOhms	±0.1%	0.125	±10ppm/°C	-55°C to 155°C	0805	Yes	Active
ERA-6ARW203V	Panasonic Electronic Components	20 kOhms	±0.05%	0.125	±10ppm/°C	-55°C to 155°C	0805	Yes	Active
RT0805WRB0720KL	YAGEO	20 kOhms	±0.05%	0.125	±10ppm/°C	-55°C to 155°C	0805	No	Active
TNPW080520K0BYEA	Vishay Dale	20 kOhms	±0.1%	0.26	±10ppm/°C	-55°C to 175°C	0805	Yes	Active
TNPW080520K0BYEN	Vishay Dale	20 kOhms	±0.1%	0.26	±10ppm/°C	-55°C to 175°C	0805	Yes	Active

Engineering Selection Recommendations

Primary Substitutes (Susumu RG Series)

The RG2012N-203-B-T5 and RG2012N-203-W-T5 represent direct Susumu alternatives with improved tolerance specifications (±0.1% and ±0.05% respectively) while maintaining identical electrical and mechanical parameters. Both are active products with full AEC-Q200 automotive qualification and anti-sulfur coating. The RG2012N-203-W-T1 offers the tightest tolerance (±0.05%) with equivalent performance characteristics and extensive inventory availability (171,947 units).

Secondary Substitutes (Panasonic ERA-6A Series)

The ERA-6ARB203V (±0.1% tolerance) and ERA-6ARW203V (±0.05% tolerance) provide cross-manufacturer alternatives with active product status and AEC-Q200 qualification. Physical dimensions are identical to the original part. These components are suitable for applications requiring automotive-grade reliability with equivalent electrical performance.

Alternative Substitutes (YAGEO and Vishay)

The RT0805WRB0720KL (YAGEO) offers ±0.05% tolerance and active status but lacks AEC-Q200 automotive qualification. The TNPW080520K0BYEA and TNPW080520K0BYEN (Vishay Dale) provide enhanced power rating (0.26W versus 0.125W) and extended operating temperature range (-55°C to 175°C) with AEC-Q200 qualification, suitable for applications requiring thermal margin or higher power dissipation capability.

Frequently Asked Questions (FAQ)

Q: Can the RG2012N-203-C-T5 be directly replaced with RG2012N-203-B-T5?

A: Yes. Both components share identical resistance (20 kOhms), package (0805), power rating (0.125W), temperature coefficient (±10ppm/°C), operating temperature range (-55°C to 155°C), and AEC-Q200 qualification. The RG2012N-203-B-T5 features improved tolerance (±0.1% versus ±0.25%) and active product status.

Q: What is the difference between RG2012N-203-W-T1 and RG2012N-203-W-T5?

A: Both parts are electrically and mechanically identical with 20 kOhms resistance, ±0.05% tolerance, 0.125W power rating, and 0805 package. The designation difference (T1 versus T5) reflects packaging tape specifications. RG2012N-203-W-T1 has significantly higher inventory availability (171,947 units).

Q: Are Panasonic ERA-6A series parts compatible with the original Susumu part?

A: Yes. ERA-6ARB203V and ERA-6ARW203V maintain identical electrical specifications (20 kOhms, ±10ppm/°C temperature coefficient, -55°C to 155°C operating range) and package dimensions (0805). Both carry AEC-Q200 automotive qualification. Physical height differs slightly (0.024" maximum versus 0.020" for Susumu), which is within standard PCB assembly tolerances.

Q: Why would TNPW080520K0BYEN be selected over other substitutes?

A: The TNPW080520K0BYEN provides enhanced power dissipation capability (0.26W versus 0.125W) and extended operating temperature range (-55°C to 175°C). Selection is appropriate for applications requiring thermal margin, higher power handling, or operation at elevated temperatures while maintaining AEC-Q200 automotive qualification and anti-sulfur coating.

Q: Is the RT0805WRB0720KL suitable for automotive applications?

A: The RT0805WRB0720KL meets all electrical and mechanical compatibility requirements (20 kOhms, ±0.05% tolerance, 0805 package, -55°C to 155°C operating range). However, this component lacks AEC-Q200 automotive qualification. Selection should be limited to non-automotive applications or where automotive qualification is not a design requirement.

Q: Can parts with different tolerances be mixed in the same circuit?

A: Tolerance selection depends on circuit requirements. The original ±0.25% tolerance can be replaced with tighter tolerances (±0.1% or ±0.05%) without functional degradation. Mixing different tolerance grades in the same circuit is permissible when circuit design accommodates the widest tolerance specification.

Q: What packaging options are available for these substitutes?

A: All substitute parts are supplied in Tape & Reel (TR) packaging format, standard for automated assembly processes. The original RG2012N-203-C-T5 packaging specification was not explicitly provided in the reference data.

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