RG2012N-1540-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012N-1540-C-T5 is a 154 Ohm ±0.25% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component is designed for automotive applications with AEC-Q200 qualification and anti-sulfur construction. The part is currently obsolete, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility while offering improved specifications or active product status.

Key Parameters

Parameter	Value
Resistance	154 Ohms
Tolerance	±0.25%
Power Rating	0.125W (1/8W)
Package	0805 (2012 Metric)
Composition	Thin Film
Features	Anti-Sulfur, Automotive AEC-Q200
Operating Temperature Range	-55°C ~ 155°C
Temperature Coefficient	±10ppm/°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Mandatory Compatibility Parameters:

Resistance value: 154 Ohms (exact match required)
Package type: 0805 (2012 Metric) (exact match required)
Composition: Thin Film (exact match required)
Automotive rating: AEC-Q200 (exact match required)
Anti-sulfur construction (exact match required)

Allowable Variation Parameters:

Tolerance: May be equal to or tighter (lower) than ±0.25%
Power rating: May be equal to or greater than 0.125W
Temperature coefficient: May be equal to or lower in absolute value
Operating temperature range: May be equal to or extended
Product status: Active or Obsolete

All substitute parts listed maintain the mandatory compatibility parameters while offering equal or improved specifications in allowable variation parameters.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Product Status	Inventory (Pcs)
RG2012N-1540-C-T5	Susumu	154 Ω	±0.25%	0.125	±10	-55 ~ 155	Obsolete	844
RG2012N-1540-B-T5	Susumu	154 Ω	±0.1%	0.125	±10	-55 ~ 155	Active	854
RG2012N-1540-W-T1	Susumu	154 Ω	±0.05%	0.125	±10	-55 ~ 155	Active	1119
RG2012N-1540-W-T5	Susumu	154 Ω	±0.05%	0.125	±10	-55 ~ 155	Active	739
RG2012V-1540-B-T5	Susumu	154 Ω	±0.1%	0.125	±5	-55 ~ 155	Active	951
RG2012V-1540-P-T1	Susumu	154 Ω	±0.02%	0.125	±5	-55 ~ 155	Active	665
RG2012V-1540-W-T1	Susumu	154 Ω	±0.05%	0.125	±5	-55 ~ 155	Active	972
RG2012V-1540-W-T5	Susumu	154 Ω	±0.05%	0.125	±5	-55 ~ 155	Active	1033
TNPW0805154RBYEA	Vishay Dale	154 Ω	±0.1%	0.26	±10	-55 ~ 175	Active	1027

Engineering Selection Recommendations

Primary Substitutes (Susumu RG Series):

The Susumu RG2012N and RG2012V series parts provide direct electrical and mechanical compatibility with the obsolete RG2012N-1540-C-T5. All listed Susumu alternatives maintain the 0805 package, 154 Ohm resistance, thin film composition, AEC-Q200 automotive rating, and anti-sulfur construction.

RG2012N Series (±10ppm/°C Temperature Coefficient):

RG2012N-1540-B-T5: Tighter tolerance (±0.1%) with active product status
RG2012N-1540-W-T1 and RG2012N-1540-W-T5: Tightest tolerance (±0.05%) with active product status

RG2012V Series (±5ppm/°C Temperature Coefficient):

RG2012V-1540-B-T5: ±0.1% tolerance with improved temperature stability
RG2012V-1540-P-T1: ±0.02% tolerance with superior precision and improved temperature stability
RG2012V-1540-W-T1 and RG2012V-1540-W-T5: ±0.05% tolerance with improved temperature stability

Cross-Manufacturer Alternative:

TNPW0805154RBYEA (Vishay Dale) provides equivalent electrical performance with extended operating temperature range (-55°C ~ 175°C) and higher power rating (0.26W). This part maintains AEC-Q200 qualification, anti-sulfur construction, and 0805 package compatibility. The ±10ppm/°C temperature coefficient matches the original specification.

Selection Criteria:

For direct replacement with improved tolerance: Select RG2012N-1540-B-T5 or RG2012N-1540-W-T5
For enhanced temperature stability: Select RG2012V series alternatives
For maximum precision: Select RG2012V-1540-P-T1
For extended thermal capability: Select TNPW0805154RBYEA

All substitute parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can RG2012N-1540-B-T5 directly replace RG2012N-1540-C-T5?

A: Yes. Both parts share identical resistance (154 Ohms), package (0805), power rating (0.125W), temperature coefficient (±10ppm/°C), and operating range (-55°C ~ 155°C). The RG2012N-1540-B-T5 offers tighter tolerance (±0.1% versus ±0.25%) and active product status.

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

A: The RG2012V series features a lower temperature coefficient (±5ppm/°C) compared to RG2012N (±10ppm/°C), providing improved stability across the operating temperature range. Both series maintain identical resistance, package, power rating, and automotive qualification.

Q: Is TNPW0805154RBYEA compatible with the original RG2012N-1540-C-T5?

A: Yes, with noted differences. The TNPW0805154RBYEA maintains the same resistance, package, tolerance, temperature coefficient, and AEC-Q200 rating. It offers higher power rating (0.26W versus 0.125W) and extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C). The manufacturer is Vishay Dale rather than Susumu.

Q: What tolerance should I select for my application?

A: Tolerance selection depends on circuit requirements. The original ±0.25% tolerance is maintained by all substitutes. Tighter tolerances (±0.1%, ±0.05%, ±0.02%) are available for applications requiring higher precision. Tolerance does not affect package compatibility or thermal performance.

Q: Are all substitute parts AEC-Q200 qualified?

A: Yes. All listed substitute parts carry AEC-Q200 automotive qualification, anti-sulfur construction, and MSL 1 moisture sensitivity rating, matching the original part's automotive-grade specifications.

Q: What is the impact of selecting a higher power-rated part?

A: The TNPW0805154RBYEA (0.26W) can be used in applications designed for the 0.125W RG2012N-1540-C-T5. Higher power rating provides additional thermal margin but does not affect electrical performance or package dimensions. Physical dimensions remain identical (0.079" L x 0.049" W).

Q: Can I use RG2012V-1540-P-T1 in place of RG2012N-1540-C-T5?

A: Yes. The RG2012V-1540-P-T1 provides superior precision (±0.02% tolerance) and improved temperature stability (±5ppm/°C). All other parameters—resistance, package, power rating, operating temperature, and automotive qualification—are compatible.

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