RG2012N-1783-C-T5 Equivalent & Substitute Parts

Part Overview

RG2012N-1783-C-T5 is a 178 kOhms ±0.25% thin film chip resistor manufactured by Susumu in 0805 (2012 Metric) package, rated for 0.125W power dissipation. The product status is Obsolete, making it necessary to identify equivalent substitute parts for new designs and replacement applications.

Key Parameters

Parameter	Value
Resistance	178 kOhms
Tolerance	±0.25%
Power Rating	0.125W, 1/8W
Package / Case	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±10ppm/°C
Operating Temperature	-55°C ~ 155°C
Features	Anti-Sulfur, Automotive AEC-Q200

Substitute Part Grouping Explanation

All substitute parts listed maintain the same resistance value (178 kOhms), package size (0805), composition (Thin Film), temperature coefficient (±10ppm/°C), and automotive qualification (AEC-Q200). The substitutes are categorized as upgrades based on:

Tighter Tolerance Upgrades: RG2012N-1783-B-T5 (±0.1%), RG2012N-1783-W-T1 (±0.05%), and RG2012N-1783-W-T5 (±0.05%) offer improved tolerance specifications compared to the original ±0.25%.

Cross-Manufacturer Upgrade: TNPW0805178KBYEA from Vishay Dale provides ±0.1% tolerance with higher power rating (0.26W) and extended operating temperature range (-55°C ~ 175°C).

Parameter Comparison

Part Number	Manufacturer	Status	Tolerance	Power (Watts)	Temp Coeff	Operating Temp	Height Max	Packaging
RG2012N-1783-C-T5	Susumu	Obsolete	±0.25%	0.125W, 1/8W	±10ppm/°C	-55°C ~ 155°C	0.020" (0.50mm)	-
RG2012N-1783-B-T5	Susumu	Active	±0.1%	0.125W, 1/8W	±10ppm/°C	-55°C ~ 155°C	0.020" (0.50mm)	Tape & Reel (TR)
RG2012N-1783-W-T1	Susumu	Active	±0.05%	0.125W, 1/8W	±10ppm/°C	-55°C ~ 155°C	0.020" (0.50mm)	Tape & Reel (TR)
RG2012N-1783-W-T5	Susumu	Active	±0.05%	0.125W, 1/8W	±10ppm/°C	-55°C ~ 155°C	0.020" (0.50mm)	Tape & Reel (TR)
TNPW0805178KBYEA	Vishay Dale	Active	±0.1%	0.26W	±10ppm/°C	-55°C ~ 175°C	0.022" (0.55mm)	Tape & Reel (TR)

Engineering Selection Recommendations

Direct Replacement within Susumu RG Series: RG2012N-1783-B-T5 provides the closest match with active product status and tighter ±0.1% tolerance. RG2012N-1783-W-T1 and RG2012N-1783-W-T5 offer precision-grade ±0.05% tolerance for applications requiring enhanced accuracy.

Cross-Manufacturer Option: TNPW0805178KBYEA from Vishay Dale offers active product status with ±0.1% tolerance, higher power rating (0.26W), and extended upper operating temperature limit (175°C). All substitutes maintain ROHS3 compliance, AEC-Q200 qualification, and MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can I directly replace RG2012N-1783-C-T5 with tighter tolerance substitutes?
A: Yes. Substitutes with ±0.1% or ±0.05% tolerance meet or exceed the original ±0.25% specification for resistance accuracy.

Q: Are the package dimensions identical across all substitutes?
A: All parts use 0805 (2012 Metric) package with 2.00mm x 1.25mm footprint. Height differences are minimal: Susumu parts are 0.50mm maximum, while TNPW0805178KBYEA is 0.55mm maximum.

Q: Do all substitutes maintain AEC-Q200 automotive qualification?
A: Yes. All listed substitutes carry AEC-Q200 qualification and anti-sulfur features required for automotive applications.

Q: What is the difference between RG2012N-1783-W-T1 and RG2012N-1783-W-T5?
A: Both parts share identical electrical specifications (178 kOhms ±0.05%, 0.125W). The suffix indicates different tape and reel packaging configurations.

Q: Can TNPW0805178KBYEA handle higher power dissipation?
A: TNPW0805178KBYEA is rated for 0.26W, compared to 0.125W for Susumu RG series parts, providing additional power handling margin.

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