RG2012P-184-B-T1 Equivalent & Substitute Parts

Part Overview

The RG2012P-184-B-T1 is a 180 kOhms ±0.1% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component features anti-sulfur coating and automotive AEC-Q200 qualification, designed for high-reliability applications in harsh environments. The part is currently obsolete, necessitating identification of functionally equivalent alternatives from active product lines. Substitute parts must maintain electrical performance, mechanical compatibility, and automotive-grade reliability standards.

Key Parameters

Parameter	Value	Criticality for Substitution
Resistance Value	180 kOhms	Critical - Must match exactly
Tolerance	±0.1%	Critical - Determines circuit accuracy
Power Rating	0.125W (1/8W)	Critical - Minimum thermal requirement
Package / Case	0805 (2012 Metric)	Critical - PCB footprint compatibility
Composition	Thin Film	Critical - Determines tolerance and stability
Temperature Coefficient	±25ppm/°C	Important - Affects circuit performance over temperature
Operating Temperature Range	-55°C ~ 155°C	Important - Application environment requirement
AEC-Q200 Rating	Yes	Critical - Automotive qualification requirement
RoHS Compliance	ROHS3 Compliant	Important - Regulatory requirement

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

Mandatory Equivalence Parameters:

Resistance value: 180 kOhms (exact match required)
Package / Case: 0805 (2012 Metric) (physical footprint compatibility)
Composition: Thin Film (electrical performance characteristics)
AEC-Q200 automotive qualification (reliability standard)
RoHS3 compliance (regulatory requirement)

Acceptable Variation Parameters:

Tolerance: ±0.1% or tighter (±0.05%) represents an upgrade
Power rating: 0.125W minimum; higher ratings (0.26W) are acceptable upgrades
Temperature coefficient: ±25ppm/°C or better (±10ppm/°C) represents an upgrade
Operating temperature range: -55°C ~ 155°C minimum; extended ranges are acceptable upgrades
Packaging format: Tape & Reel (TR) is acceptable for the obsolete Bulk (-) format

Non-Equivalent Parts (Excluded): Parts that deviate from mandatory parameters are not substitutes and are excluded from this reference.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Op Temp Range	Product Status	Packaging
RG2012P-184-B-T1	Susumu	180 kΩ	±0.1%	0.125	±25	-55 ~ 155°C	Obsolete	Bulk
RG2012P-184-B-T5	Susumu	180 kΩ	±0.1%	0.125	±25	-55 ~ 155°C	Active	Tape & Reel
RG2012N-184-B-T5	Susumu	180 kΩ	±0.1%	0.125	±10	-55 ~ 155°C	Active	Tape & Reel
RG2012N-184-W-T5	Susumu	180 kΩ	±0.05%	0.125	±10	-55 ~ 155°C	Active	Tape & Reel
RG2012P-184-W-T5	Susumu	180 kΩ	±0.05%	0.125	±25	-55 ~ 155°C	Active	Tape & Reel
ERA-6AEB184V	Panasonic Electronic Components	180 kΩ	±0.1%	0.125	±25	-55 ~ 155°C	Active	Tape & Reel
RT0805BRD07180KL	YAGEO	180 kΩ	±0.1%	0.125	±25	-55 ~ 155°C	Active	Tape & Reel
TNPW0805180KBEEA	Vishay Dale	180 kΩ	±0.1%	0.26	±25	-55 ~ 175°C	Active	Tape & Reel
TNPW0805180KBEEN	Vishay Dale	180 kΩ	±0.1%	0.26	±25	-55 ~ 175°C	Active	Tape & Reel

Engineering Selection Recommendations

Direct Substitutes (Identical Electrical Performance):

RG2012P-184-B-T5 (Susumu) and ERA-6AEB184V (Panasonic Electronic Components) are direct substitutes for RG2012P-184-B-T1. Both maintain identical resistance, tolerance, power rating, temperature coefficient, and operating temperature range. Both are active products with AEC-Q200 automotive qualification and ROHS3 compliance. The primary difference is packaging format (Tape & Reel versus Bulk), which is a manufacturing and supply consideration rather than an electrical or mechanical incompatibility.

Upgraded Substitutes (Enhanced Performance):

RG2012N-184-B-T5 (Susumu) provides improved temperature stability with ±10ppm/°C coefficient while maintaining all other electrical specifications. This upgrade is suitable for applications requiring enhanced temperature performance.

RG2012N-184-W-T5 (Susumu) and RG2012P-184-W-T5 (Susumu) offer tighter tolerance at ±0.05%, representing enhanced accuracy. RG2012N-184-W-T5 additionally provides ±10ppm/°C temperature coefficient.

Higher Power Rating Alternatives:

TNPW0805180KBEEA and TNPW0805180KBEEN (Vishay Dale) provide 0.26W power rating with extended operating temperature to 175°C. These are suitable for applications with higher thermal dissipation requirements or extended temperature environments.

Cross-Manufacturer Substitute:

RT0805BRD07180KL (YAGEO) is a direct electrical equivalent from an alternative manufacturer, maintaining all critical specifications including AEC-Q200 qualification.

All listed substitutes are active products with confirmed inventory availability and full regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can RG2012P-184-B-T5 replace RG2012P-184-B-T1 directly?

A: Yes. RG2012P-184-B-T5 is electrically and mechanically identical to RG2012P-184-B-T1. The only difference is packaging format (Tape & Reel versus Bulk). Both maintain 180 kOhms ±0.1%, 0.125W power rating, ±25ppm/°C temperature coefficient, and AEC-Q200 automotive qualification. Tape & Reel packaging is standard for active production and does not affect component performance.

Q: What is the difference between RG2012P and RG2012N series?

A: The RG2012N series provides improved temperature stability with ±10ppm/°C coefficient compared to RG2012P at ±25ppm/°C. Both series maintain identical resistance, tolerance, power rating, and package specifications. Selection between series depends on application temperature performance requirements.

Q: What does the "W" designation in part numbers RG2012N-184-W-T5 and RG2012P-184-W-T5 indicate?

A: The "W" designation indicates tighter tolerance at ±0.05% compared to ±0.1% in parts without this designation. This represents enhanced accuracy for precision circuit applications. All other electrical and mechanical specifications remain equivalent to their ±0.1% counterparts.

Q: Are TNPW0805180KBEEA and TNPW0805180KBEEN interchangeable?

A: Yes. Both parts are electrically and mechanically identical with 180 kOhms ±0.1%, 0.26W power rating, and identical operating specifications. The difference is in packaging designation (BEEA versus BEEN). Both are active products suitable for direct substitution.

Q: Can I use TNPW0805180KBEEA in place of RG2012P-184-B-T1?

A: Yes, with consideration for thermal design. TNPW0805180KBEEA maintains identical resistance, tolerance, and temperature coefficient. The 0.26W power rating is higher than the 0.125W requirement, providing additional thermal margin. Operating temperature extends to 175°C versus 155°C. This is a suitable upgrade for applications with higher power dissipation or extended temperature environments.

Q: Is ERA-6AEB184V AEC-Q200 qualified?

A: Yes. ERA-6AEB184V carries AEC-Q200 automotive qualification, making it suitable for automotive and high-reliability applications equivalent to RG2012P-184-B-T1.

Q: What is the significance of the "T1" and "T5" suffixes in Susumu part numbers?

A: The "T" suffix indicates tape format. T1 represents Bulk packaging (obsolete format), while T5 represents Tape & Reel packaging (active production format). Electrical specifications are identical; the difference is supply and handling format only.

Q: Can I substitute RT0805BRD07180KL from YAGEO for the Susumu RG2012P-184-B-T1?

A: Yes. RT0805BRD07180KL maintains identical electrical specifications: 180 kOhms ±0.1%, 0.125W power rating, ±25ppm/°C temperature coefficient, and -55°C ~ 155°C operating range. Both are AEC-Q200 qualified and ROHS3 compliant. Cross-manufacturer substitution is electrically and mechanically valid.

Q: Which substitute offers the best temperature stability?

A: RG2012N-184-W-T5 offers the best temperature stability with ±10ppm/°C coefficient combined with ±0.05% tolerance. This part is recommended for precision applications requiring minimal temperature drift.

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