RG2012P-181-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012P-181-C-T5 is a 180 Ohm ±0.25% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. Manufactured by Susumu, this component features anti-sulfur coating and automotive AEC-Q200 qualification, suitable for high-reliability applications across -55°C to 155°C operating temperature range.

The RG2012P-181-C-T5 is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this resistor specification.

Key Parameters

Parameter	Value
Resistance	180 Ohms
Tolerance	±0.25%
Power Rating	0.125W (1/8W)
Package	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±25ppm/°C
Operating Temperature Range	-55°C to 155°C
Features	Anti-Sulfur, Automotive AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RG2012P-181-C-T5 is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

Resistance value: 180 Ohms
Package type: 0805 (2012 Metric)
Power rating: 0.125W (1/8W)
Composition: Thin Film
Operating temperature range: -55°C to 155°C
Compliance: ROHS3, AEC-Q200 (where applicable)

Allowable Variation Parameters:

Tolerance: Substitute parts with equal or tighter tolerance (±0.25% or better) are functionally equivalent
Temperature coefficient: Substitute parts with equal or lower temperature coefficient magnitude are functionally equivalent
Packaging format: Tape & Reel (TR) packaging is compatible with the original component application

All substitute parts listed maintain identical resistance, package, power rating, and operating temperature specifications. Variations in tolerance and temperature coefficient represent performance improvements or equivalent performance characteristics.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Package	Status	AEC-Q200
RG2012P-181-C-T5	Susumu	180 Ω	±0.25%	0.125	±25	0805	Obsolete	Yes
RG2012N-181-B-T5	Susumu	180 Ω	±0.1%	0.125	±10	0805	Active	Yes
RG2012N-181-W-T5	Susumu	180 Ω	±0.05%	0.125	±10	0805	Active	Yes
RG2012P-181-B-T5	Susumu	180 Ω	±0.1%	0.125	±25	0805	Active	Yes
RG2012P-181-W-T5	Susumu	180 Ω	±0.05%	0.125	±25	0805	Active	Yes
RG2012V-181-B-T5	Susumu	180 Ω	±0.1%	0.125	±5	0805	Active	Yes
RG2012V-181-P-T1	Susumu	180 Ω	±0.02%	0.125	±5	0805	Active	Yes
RG2012V-181-W-T1	Susumu	180 Ω	±0.05%	0.125	±5	0805	Active	Yes
RG2012V-181-W-T5	Susumu	180 Ω	±0.05%	0.125	±5	0805	Active	Yes
RT0805CRD07180RL	YAGEO	180 Ω	±0.25%	0.125	±25	0805	Active	No
ERA-6AEB181V	Panasonic Electronic Components	180 Ω	±0.1%	0.125	±25	0805	Active	Yes

Engineering Selection Recommendations

Primary Substitutes (Susumu RG Series - Active Status):

The Susumu RG2012 series substitutes maintain full compatibility with the original RG2012P-181-C-T5 specification. Selection among active Susumu alternatives depends on tolerance and temperature coefficient requirements:

RG2012P-181-B-T5: Tighter tolerance (±0.1%) with identical temperature coefficient (±25ppm/°C). Recommended for applications requiring improved accuracy while maintaining thermal stability characteristics of the original part.
RG2012P-181-W-T5: Tightest tolerance in the P-series (±0.05%) with identical temperature coefficient (±25ppm/°C). Recommended for precision applications requiring enhanced tolerance performance.
RG2012V-181-B-T5, RG2012V-181-W-T1, RG2012V-181-W-T5: V-series variants offer superior temperature coefficient performance (±5ppm/°C) with tighter tolerances. Recommended for applications with stringent thermal stability requirements.
RG2012V-181-P-T1: Highest precision option with ±0.02% tolerance and ±5ppm/°C temperature coefficient. Recommended for precision measurement and calibration applications.

Cross-Manufacturer Substitutes (Active Status):

ERA-6AEB181V (Panasonic): Matches tolerance (±0.1%) and temperature coefficient (±25ppm/°C) of RG2012P-181-B-T5. Maintains AEC-Q200 automotive qualification. Recommended where Panasonic supply chain is preferred or required.
RT0805CRD07180RL (YAGEO): Matches original tolerance (±0.25%) and temperature coefficient (±25ppm/°C). Does not carry AEC-Q200 rating. Recommended only for non-automotive applications where automotive qualification is not required.

All recommended substitutes maintain ROHS3 compliance, MSL 1 rating, and 0805 package compatibility.

Frequently Asked Questions (FAQ)

Q: Can RG2012P-181-C-T5 be replaced with any 180 Ohm 0805 resistor?

A: No. Substitution requires matching the following parameters: 180 Ohm resistance, 0.125W power rating, thin film composition, -55°C to 155°C operating temperature range, and ROHS3 compliance. Additional parameters such as tolerance and temperature coefficient must be equal to or better than the original specification.

Q: What is the difference between Susumu RG2012P and RG2012V series?

A: The primary difference is temperature coefficient. RG2012P series has ±25ppm/°C temperature coefficient, while RG2012V series has ±5ppm/°C temperature coefficient. Both series maintain identical resistance, power rating, package, and operating temperature range. V-series components provide superior thermal stability.

Q: Is AEC-Q200 certification required for my application?

A: AEC-Q200 certification is mandatory for automotive applications. The original RG2012P-181-C-T5 carries this certification. If your application is automotive, select only substitute parts with AEC-Q200 rating: Susumu RG series variants or Panasonic ERA-6AEB181V. The YAGEO RT0805CRD07180RL does not carry AEC-Q200 certification.

Q: What does tolerance ±0.25%, ±0.1%, ±0.05%, and ±0.02% mean?

A: Tolerance specifies the maximum deviation from the nominal 180 Ohm value. ±0.25% allows deviation of ±0.45 Ohms (range 179.55–180.45 Ohms). ±0.1% allows ±0.18 Ohms. ±0.05% allows ±0.09 Ohms. ±0.02% allows ±0.036 Ohms. Tighter tolerance indicates higher precision and is suitable for applications requiring accurate resistance values.

Q: Can I use a substitute with tighter tolerance than the original?

A: Yes. A substitute with tighter tolerance (lower percentage value) is functionally equivalent and provides equal or improved performance. For example, RG2012P-181-B-T5 with ±0.1% tolerance can replace RG2012P-181-C-T5 with ±0.25% tolerance.

Q: What is temperature coefficient and why does it matter?

A: Temperature coefficient (ppm/°C) specifies how much the resistance value changes per degree Celsius change in operating temperature. Lower values indicate better thermal stability. The original part has ±25ppm/°C. Substitutes with ±10ppm/°C or ±5ppm/°C provide improved stability across the -55°C to 155°C operating range.

Q: Are Tape & Reel (TR) packaged parts compatible with the original component?

A: Yes. Tape & Reel packaging is a standard format for surface mount component delivery and is compatible with automated assembly equipment. All listed substitutes in Tape & Reel format are mechanically and electrically compatible with the original RG2012P-181-C-T5.

Q: Why is RG2012P-181-C-T5 marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Active substitute parts from the same manufacturer (Susumu RG series) or cross-manufacturer alternatives (Panasonic ERA-6AEB181V, YAGEO RT0805CRD07180RL) provide equivalent or superior performance and ensure continued supply availability.

Q: Can I mix different substitute parts in the same design?

A: Yes, provided all selected parts meet the application requirements. However, for consistency in manufacturing and quality control, using a single substitute part number across a design is recommended.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message