RG2012N-1740-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012N-1740-C-T5 is a 174 Ohm ±0.25% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component is manufactured by Susumu and features anti-sulfur coating with automotive AEC-Q200 qualification. The part is currently classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Resistance	174 Ohms
Tolerance	±0.25%
Power Rating	0.125W (1/8W)
Package	0805 (2012 Metric)
Composition	Thin Film
Features	Anti-Sulfur, Automotive AEC-Q200
Temperature Coefficient	±10ppm/°C
Operating Temperature Range	-55°C to 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RG2012N-1740-C-T5 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Resistance value: 174 Ohms (exact match required)
Package type: 0805 (2012 Metric) (physical and electrical compatibility)
Composition: Thin Film (electrical performance characteristics)
Automotive rating: AEC-Q200 (application requirement)
Anti-sulfur feature (environmental protection requirement)

Allowable Variation Parameters:

Tolerance: Can be equal to or tighter than ±0.25%
Power rating: Can be equal to or greater than 0.125W
Temperature coefficient: Can be equal to or lower absolute value
Operating temperature range: Must encompass or exceed -55°C to 155°C
Product status: Active parts preferred over obsolete

All substitute parts maintain identical physical dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm) and electrical package compatibility. Tolerance improvements and temperature coefficient enhancements represent upgrades in performance specification without compromising circuit functionality.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Op Temp Range	Product Status	Inventory (Pcs)
RG2012N-1740-C-T5	Susumu	174 Ω	±0.25%	0.125	±10	-55 to 155°C	Obsolete	826
RG2012N-1740-B-T5	Susumu	174 Ω	±0.1%	0.125	±10	-55 to 155°C	Active	1125
RG2012N-1740-W-T1	Susumu	174 Ω	±0.05%	0.125	±10	-55 to 155°C	Active	928
RG2012N-1740-W-T5	Susumu	174 Ω	±0.05%	0.125	±10	-55 to 155°C	Active	1151
RG2012V-1740-B-T5	Susumu	174 Ω	±0.1%	0.125	±5	-55 to 155°C	Active	1040
RG2012V-1740-P-T1	Susumu	174 Ω	±0.02%	0.125	±5	-55 to 155°C	Active	760
RG2012V-1740-W-T1	Susumu	174 Ω	±0.05%	0.125	±5	-55 to 155°C	Active	1085
RG2012V-1740-W-T5	Susumu	174 Ω	±0.05%	0.125	±5	-55 to 155°C	Active	735
TNPW0805174RBYEN	Vishay Dale	174 Ω	±0.1%	0.26	±10	-55 to 175°C	Active	768

Engineering Selection Recommendations

Primary Substitutes (Susumu RG Series):

The Susumu RG2012N and RG2012V series parts provide direct functional equivalence to the obsolete RG2012N-1740-C-T5. All maintain identical 174 Ohm resistance, 0805 package geometry, 0.125W power rating, and AEC-Q200 automotive qualification.

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

RG2012N-1740-B-T5: Tighter tolerance (±0.1%) with active product status
RG2012N-1740-W-T1 and RG2012N-1740-W-T5: Highest tolerance precision (±0.05%) with active product status

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

RG2012V-1740-B-T5: ±0.1% tolerance with improved temperature stability
RG2012V-1740-P-T1: Highest precision (±0.02%) with superior temperature coefficient
RG2012V-1740-W-T1 and RG2012V-1740-W-T5: ±0.05% tolerance with improved temperature stability

All Susumu substitutes are active products with ROHS3 compliance, AEC-Q200 rating, and anti-sulfur coating.

Cross-Manufacturer Substitute (Vishay Dale):

TNPW0805174RBYEN provides functional equivalence with the following distinctions:

Higher power rating (0.26W versus 0.125W) allows operation in higher dissipation applications
Extended operating temperature range (-55°C to 175°C versus -55°C to 155°C)
Identical 174 Ohm resistance and 0805 package
±0.1% tolerance and ±10ppm/°C temperature coefficient
Active product status with AEC-Q200 and moisture-resistant thin film construction

Frequently Asked Questions (FAQ)

Q: Can RG2012N-1740-B-T5 directly replace RG2012N-1740-C-T5 in existing designs?

A: Yes. Both parts share identical resistance (174 Ohms), package (0805), power rating (0.125W), temperature coefficient (±10ppm/°C), and operating range (-55°C to 155°C). The RG2012N-1740-B-T5 provides tighter tolerance (±0.1% versus ±0.25%), which is a performance improvement with no circuit compatibility issues.

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

A: The primary difference is temperature coefficient. RG2012N series has ±10ppm/°C while RG2012V series has ±5ppm/°C. The RG2012V series provides superior temperature stability. Both series maintain identical resistance, package, power rating, and operating temperature range.

Q: Is TNPW0805174RBYEN suitable for applications requiring 0.125W power dissipation?

A: Yes. The TNPW0805174RBYEN is rated for 0.26W, which exceeds the 0.125W requirement. The higher power rating does not create compatibility issues for lower power applications. The part maintains identical resistance, package, and AEC-Q200 qualification.

Q: What tolerance should be selected for precision-critical circuits?

A: Selection depends on circuit requirements. RG2012V-1740-P-T1 offers the tightest tolerance (±0.02%) with the lowest temperature coefficient (±5ppm/°C). For general applications, RG2012N-1740-W-T5 or RG2012V-1740-W-T5 (±0.05%) provide excellent precision. For standard applications, RG2012N-1740-B-T5 (±0.1%) is sufficient.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with Moisture Sensitivity Level 1 (unlimited shelf life). All maintain anti-sulfur coating and AEC-Q200 automotive qualification.

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

A: Parts with different temperature coefficients (±10ppm/°C versus ±5ppm/°C) can be used in the same circuit. Selection should be based on circuit performance requirements. Lower temperature coefficient values provide better stability across the operating temperature range.

Q: What is the significance of the packaging designation (T1 versus T5)?

A: T1 and T5 designations refer to tape reel specifications and packaging configurations. Both are compatible for automated assembly. Selection depends on procurement and manufacturing process requirements.

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