RG2012N-8450-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012N-8450-C-T5 is a thin film chip resistor manufactured by Susumu in the 0805 (2012 Metric) package. This component is rated for 845 Ohms ±0.25% tolerance with 0.125W (1/8W) power dissipation. The part features anti-sulfur construction and meets automotive AEC-Q200 qualification standards. The RG2012N-8450-C-T5 is classified as obsolete product status. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications.

Key Parameters

Parameter	Value
Resistance	845 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 of the RG2012N-8450-C-T5 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Resistance value: 845 Ohms (exact match required)
Package type: 0805 (2012 Metric) (exact match required)
Power rating: Minimum 0.125W (1/8W)
Composition: Thin Film
Automotive qualification: AEC-Q200 rated
Operating temperature range: Minimum -55°C ~ 155°C

Substitution Criteria: Substitute parts must maintain identical resistance and package specifications. Tolerance values may be tighter (lower) than the original ±0.25% specification, as this represents improved accuracy. Temperature coefficient values may differ between product lines (±10ppm/°C or ±5ppm/°C) without affecting functional compatibility. Power ratings equal to or greater than 0.125W are acceptable. All substitute parts must retain AEC-Q200 automotive qualification and anti-sulfur construction.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Product Status	Inventory (Pcs)
RG2012N-8450-C-T5	Susumu	845 Ω	±0.25%	0.125	±10	-55 ~ 155	Obsolete	608
RG2012N-8450-B-T5	Susumu	845 Ω	±0.1%	0.125	±10	-55 ~ 155	Active	1069
RG2012N-8450-W-T1	Susumu	845 Ω	±0.05%	0.125	±10	-55 ~ 155	Active	705
RG2012N-8450-W-T5	Susumu	845 Ω	±0.05%	0.125	±10	-55 ~ 155	Active	999
RG2012V-8450-B-T5	Susumu	845 Ω	±0.1%	0.125	±5	-55 ~ 155	Active	830
RG2012V-8450-P-T1	Susumu	845 Ω	±0.02%	0.125	±5	-55 ~ 155	Active	1014
RG2012V-8450-W-T1	Susumu	845 Ω	±0.05%	0.125	±5	-55 ~ 155	Active	1129
RG2012V-8450-W-T5	Susumu	845 Ω	±0.05%	0.125	±5	-55 ~ 155	Active	1120
TNPW0805845RBYEA	Vishay Dale	845 Ω	±0.1%	0.26	±10	-55 ~ 175	Active	1112

Engineering Selection Recommendations

Susumu RG Series (Same Manufacturer Line): The Susumu RG2012N and RG2012V series parts provide direct substitution with improved tolerance specifications. All Susumu alternatives maintain identical 0805 package dimensions, 845 Ohm resistance, and AEC-Q200 automotive qualification. The RG2012N variants retain the ±10ppm/°C temperature coefficient of the original part, while RG2012V variants feature improved ±5ppm/°C temperature coefficient. All Susumu substitutes are active product status with higher inventory availability than the obsolete RG2012N-8450-C-T5.

Vishay Dale TNPW Series (Cross-Manufacturer Alternative): The TNPW0805845RBYEA provides cross-manufacturer compatibility with identical 845 Ohm resistance and 0805 package. This part features 0.26W power rating, which exceeds the original 0.125W specification, and extends the operating temperature range to -55°C ~ 175°C. The TNPW series maintains AEC-Q200 automotive qualification and anti-sulfur construction with moisture-resistant thin film composition. This part is active product status with substantial inventory availability.

Product Status Consideration: All substitute parts listed are active product status, ensuring long-term availability and supply chain continuity. The original RG2012N-8450-C-T5 is obsolete; substitution is required for new production and ongoing support.

Frequently Asked Questions (FAQ)

Q: Can RG2012V series parts substitute for RG2012N series parts? A: Yes. Both series share identical 845 Ohm resistance, 0.125W power rating, 0805 package, and AEC-Q200 qualification. The RG2012V series features improved ±5ppm/°C temperature coefficient compared to RG2012N ±10ppm/°C. This represents enhanced performance without functional incompatibility.

Q: What is the difference between tolerance grades (±0.25%, ±0.1%, ±0.05%, ±0.02%)? A: Tolerance indicates the maximum deviation from the nominal 845 Ohm resistance value. Tighter tolerance (lower percentage) provides greater accuracy. The original part specifies ±0.25%; substitute parts with ±0.1%, ±0.05%, or ±0.02% tolerance are functionally compatible and provide improved precision.

Q: Is the Vishay Dale TNPW0805845RBYEA a direct replacement? A: The TNPW0805845RBYEA is functionally compatible for the 845 Ohm 0805 package requirement. It provides higher power rating (0.26W versus 0.125W) and extended temperature range (-55°C ~ 175°C versus -55°C ~ 155°C). Both parts meet AEC-Q200 automotive qualification. Verify circuit design requirements for power dissipation and temperature operating conditions before selection.

Q: Does packaging format (Tape & Reel) affect substitution? A: Packaging format affects handling and assembly processes but does not affect electrical or mechanical compatibility. The original RG2012N-8450-C-T5 and all substitute parts use identical 0805 (2012 Metric) component dimensions and termination specifications. Tape & Reel packaging is standard for automated assembly processes.

Q: Are all substitute parts RoHS3 compliant? A: Yes. The original RG2012N-8450-C-T5 and all listed substitute parts are RoHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). All parts are REACH unaffected and classified under ECCN EAR99.

Q: What is the significance of temperature coefficient differences? A: Temperature coefficient (ppm/°C) indicates resistance value change per degree Celsius. The original part specifies ±10ppm/°C; RG2012V variants specify ±5ppm/°C. Lower temperature coefficient values indicate greater stability across temperature variations. Both specifications are acceptable for standard applications; selection depends on circuit precision requirements.

Q: Can I use a higher tolerance part in place of the original ±0.25% specification? A: No. Tolerance specifications define maximum acceptable deviation. A part with ±0.1% tolerance is tighter (more accurate) than ±0.25% and is acceptable. A part with looser tolerance than ±0.25% would not meet the original specification and is not suitable.

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