RG2012N-8451-C-T5 Equivalent & Substitute Parts

Part Overview

RG2012N-8451-C-T5 is a 8.45 kOhms thin film chip resistor manufactured by Susumu in 0805 package. The part is currently marked as Obsolete, necessitating the identification of substitute components for existing designs and new production requirements.

Key Parameters

Parameter	Value
Resistance	8.45 kOhms
Tolerance	±0.25%
Power Rating	0.125W, 1/8W
Package / Case	0805 (2012 Metric)
Temperature Coefficient	±10ppm/°C
Composition	Thin Film
Operating Temperature	-55°C ~ 155°C
Features	Anti-Sulfur, Automotive AEC-Q200

Substitute Part Grouping Explanation

All substitute parts maintain the same resistance value (8.45 kOhms), package size (0805), composition (Thin Film), operating temperature range (-55°C ~ 155°C), and automotive qualification (AEC-Q200). The substitutes differ in tolerance specifications and temperature coefficient:

RG2012N series with ±10ppm/°C: RG2012N-8451-B-T5 (±0.1%), RG2012N-8451-W-T1 (±0.05%), RG2012N-8451-W-T5 (±0.05%)
RG2012V series with ±5ppm/°C: RG2012V-8451-B-T5 (±0.1%), RG2012V-8451-P-T1 (±0.02%), RG2012V-8451-W-T1 (±0.05%), RG2012V-8451-W-T5 (±0.05%)
TNPW series with ±10ppm/°C: TNPW08058K45BYEA (±0.1%, 0.26W power rating)

All substitutes offer tighter tolerance than the original ±0.25% specification.

Parameter Comparison

Part Number	Manufacturer	Tolerance	Power	Temp Coeff	Operating Temp	Status	Packaging	Inventory
RG2012N-8451-C-T5	Susumu	±0.25%	0.125W	±10ppm/°C	-55°C ~ 155°C	Obsolete	-	1036
RG2012N-8451-B-T5	Susumu	±0.1%	0.125W	±10ppm/°C	-55°C ~ 155°C	Active	Tape & Reel (TR)	837
RG2012N-8451-W-T1	Susumu	±0.05%	0.125W	±10ppm/°C	-55°C ~ 155°C	Active	Tape & Reel (TR)	1025
RG2012N-8451-W-T5	Susumu	±0.05%	0.125W	±10ppm/°C	-55°C ~ 155°C	Active	Tape & Reel (TR)	728
RG2012V-8451-B-T5	Susumu	±0.1%	0.125W	±5ppm/°C	-55°C ~ 155°C	Active	Tape & Reel (TR)	740
RG2012V-8451-P-T1	Susumu	±0.02%	0.125W	±5ppm/°C	-55°C ~ 155°C	Active	Tape & Reel (TR)	1001
RG2012V-8451-W-T1	Susumu	±0.05%	0.125W	±5ppm/°C	-55°C ~ 155°C	Active	Tape & Reel (TR)	1115
RG2012V-8451-W-T5	Susumu	±0.05%	0.125W	±5ppm/°C	-55°C ~ 155°C	Active	Tape & Reel (TR)	1185
TNPW08058K45BYEA	Vishay Dale	±0.1%	0.26W	±10ppm/°C	-55°C ~ 175°C	Active	Tape & Reel (TR)	1059

Engineering Selection Recommendations

All listed substitutes are Active status parts with ROHS3 compliance and AEC-Q200 automotive qualification. RG2012N series parts maintain the same ±10ppm/°C temperature coefficient as the original component. RG2012V series parts provide improved ±5ppm/°C temperature coefficient. TNPW08058K45BYEA offers higher power rating (0.26W) and extended operating temperature range (-55°C ~ 175°C). All parts meet MSL 1 classification and are REACH Unaffected.

Frequently Asked Questions (FAQ)

Q: Can these substitutes directly replace RG2012N-8451-C-T5 in existing designs?
A: All substitutes share identical resistance value, package dimensions (0.079" L x 0.049" W), height (0.020" max), and termination count (2). The tighter tolerance specifications of the substitutes are compatible with circuits designed for ±0.25% tolerance.

Q: What is the difference between RG2012N and RG2012V series?
A: RG2012N series maintains ±10ppm/°C temperature coefficient, while RG2012V series offers ±5ppm/°C temperature coefficient. Both series share the same physical dimensions and AEC-Q200 qualification.

Q: How does TNPW08058K45BYEA differ from Susumu parts?
A: TNPW08058K45BYEA is manufactured by Vishay Dale, provides 0.26W power rating versus 0.125W, operates up to 175°C versus 155°C, and includes moisture resistant feature. Package dimensions remain identical to Susumu parts.

Q: Which tolerance level should be selected?
A: The original part specifies ±0.25% tolerance. Substitutes offer ±0.1%, ±0.05%, or ±0.02% tolerance. Any of these tighter tolerances are compatible with the original specification.

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