RG2012P-1582-B-T1 Equivalent & Substitute Parts

Part Overview

The RG2012P-1582-B-T1 is a 15.8 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-precision applications requiring stable performance across -55°C to 155°C operating temperature range. The part is currently obsolete with limited inventory availability. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications.

Key Parameters

Parameter	Value
Resistance	15.8 kOhms
Tolerance	±0.1%
Power Rating	0.125W (1/8W)
Package	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±25ppm/°C
Operating Temperature Range	-55°C ~ 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-1582-B-T1 is determined by the following critical parameters:

Primary Substitution Criteria:

Resistance value: 15.8 kOhms (exact match required)
Tolerance: ±0.1% or tighter (±0.05% acceptable as upgrade)
Package: 0805 (2012 Metric) (mandatory for PCB compatibility)
Power rating: 0.125W minimum (higher ratings acceptable)
Composition: Thin film (required for precision and stability)
Temperature coefficient: ±25ppm/°C or better
Operating temperature: Must support -55°C minimum and 155°C maximum
RoHS compliance: ROHS3 Compliant (regulatory requirement)

Substitution Categories:

Direct Equivalents maintain identical electrical specifications and packaging. These parts are interchangeable without circuit redesign.

Upgrade Substitutes offer improved performance characteristics such as tighter tolerance (±0.05% vs ±0.1%) or lower temperature coefficient (±10ppm/°C vs ±25ppm/°C) while maintaining all other critical parameters.

Cross-Manufacturer Equivalents provide identical specifications from alternative manufacturers, ensuring supply chain flexibility.

Higher Power Rating Substitutes exceed the 0.125W requirement, providing additional thermal margin while maintaining all other electrical parameters.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Op Temp Range (°C)	Features	Status
RG2012P-1582-B-T1	Susumu	15.8 kΩ	±0.1%	0.125	±25	-55 ~ 155	Anti-Sulfur, AEC-Q200	Obsolete
RG2012P-1582-B-T5	Susumu	15.8 kΩ	±0.1%	0.125	±25	-55 ~ 155	Anti-Sulfur, AEC-Q200	Active
RG2012N-1582-B-T5	Susumu	15.8 kΩ	±0.1%	0.125	±10	-55 ~ 155	Anti-Sulfur, AEC-Q200	Active
RG2012N-1582-W-T1	Susumu	15.8 kΩ	±0.05%	0.125	±10	-55 ~ 155	Anti-Sulfur, AEC-Q200	Active
RG2012P-1582-W-T5	Susumu	15.8 kΩ	±0.05%	0.125	±25	-55 ~ 155	Anti-Sulfur, AEC-Q200	Active
2-2176093-2	TE Connectivity	15.8 kΩ	±0.1%	0.25	±25	-55 ~ 155	Thin Film	Active
ERA-6AEB1582V	Panasonic	15.8 kΩ	±0.1%	0.125	±25	-55 ~ 155	AEC-Q200	Active
MCU08050D1582BP100	Vishay Beyschlag	15.8 kΩ	±0.1%	0.125	±25	-55 ~ 125	Anti-Sulfur	Active
MCU08050D1582BP500	Vishay Beyschlag	15.8 kΩ	±0.1%	0.125	±25	-55 ~ 125	Anti-Sulfur	Active
RT0805BRD0715K8L	YAGEO	15.8 kΩ	±0.1%	0.125	±25	-55 ~ 155	Thin Film	Active
TNPW080515K8BEEA	Vishay Dale	15.8 kΩ	±0.1%	0.26	±25	-55 ~ 175	Anti-Sulfur, AEC-Q200, Moisture Resistant	Active

Engineering Selection Recommendations

Primary Recommendation: RG2012P-1582-B-T5

The RG2012P-1582-B-T5 is the direct equivalent from Susumu, maintaining identical electrical specifications and automotive AEC-Q200 qualification. This part is in active production status with substantial inventory availability (12,761 units), ensuring supply continuity. The only difference from the obsolete RG2012P-1582-B-T1 is packaging format (Tape & Reel vs. bulk), which does not affect electrical performance or PCB assembly compatibility.

Secondary Recommendation: ERA-6AEB1582V

The ERA-6AEB1582V from Panasonic provides cross-manufacturer equivalence with identical electrical specifications and AEC-Q200 automotive qualification. This part maintains the 0.125W power rating and ±0.1% tolerance with equivalent temperature coefficient performance. High inventory availability (21,663 units) supports production requirements.

Upgrade Option: RG2012N-1582-W-T1

The RG2012N-1582-W-T1 offers improved performance with ±0.05% tolerance (tighter than the original ±0.1%) and reduced temperature coefficient (±10ppm/°C vs. ±25ppm/°C). This upgrade maintains AEC-Q200 qualification and full operating temperature range support (-55°C to 155°C). Selection of this part is appropriate when circuit design benefits from enhanced precision and stability.

Higher Power Rating Option: TNPW080515K8BEEA

The TNPW080515K8BEEA from Vishay Dale provides 0.26W power rating compared to the original 0.125W specification, offering additional thermal margin. This part maintains ±0.1% tolerance, ±25ppm/°C temperature coefficient, and AEC-Q200 qualification. Extended operating temperature range (-55°C to 175°C) provides additional environmental margin. Selection is appropriate when thermal stress analysis indicates benefit from higher power dissipation capability.

Temperature Range Consideration: MCU08050D1582BP Series

The MCU08050D1582BP100 and MCU08050D1582BP500 from Vishay Beyschlag provide equivalent electrical specifications with anti-sulfur coating. Operating temperature range is limited to -55°C to 125°C (vs. 155°C for the original part). These parts are suitable only for applications where the maximum operating temperature does not exceed 125°C.

Frequently Asked Questions (FAQ)

Q: Can RG2012P-1582-B-T5 be used as a direct replacement for RG2012P-1582-B-T1?

A: Yes. The RG2012P-1582-B-T5 is electrically and mechanically identical to the RG2012P-1582-B-T1. The only difference is packaging format (Tape & Reel vs. bulk). Both parts maintain 15.8 kOhms ±0.1%, 0.125W power rating, ±25ppm/°C temperature coefficient, and AEC-Q200 automotive qualification. PCB assembly compatibility is identical.

Q: What is the difference between ±0.1% and ±0.05% tolerance specifications?

A: Tolerance defines the maximum deviation from the nominal resistance value. A ±0.1% tolerance part can deviate up to 15.8 kOhms × 0.001 = 15.8 ohms from nominal. A ±0.05% tolerance part can deviate only 7.9 ohms. Tighter tolerance (±0.05%) provides higher precision and is suitable for circuits requiring stricter component matching or lower circuit sensitivity to resistance variation.

Q: Why do some substitute parts have higher power ratings (0.26W vs. 0.125W)?

A: Power rating indicates maximum continuous power dissipation capability. Higher power ratings provide additional thermal margin and allow operation at higher current levels without exceeding temperature limits. A 0.26W part can safely dissipate more power than a 0.125W part. Selection of higher power rating is appropriate when thermal analysis indicates benefit, but is not required if the circuit operates within the original 0.125W specification.

Q: Are all substitute parts AEC-Q200 qualified?

A: Not all. The RG2012P-1582-B-T5, RG2012N-1582-B-T5, RG2012N-1582-W-T1, RG2012P-1582-W-T5, ERA-6AEB1582V, and TNPW080515K8BEEA carry AEC-Q200 automotive qualification. The RT0805BRD0715K8L from YAGEO and MCU series from Vishay Beyschlag do not list AEC-Q200 qualification. Selection of AEC-Q200 qualified parts is mandatory for automotive applications.

Q: What is the significance of the temperature coefficient specification?

A: Temperature coefficient (ppm/°C) defines how resistance changes with temperature. A ±25ppm/°C part experiences 0.0025% resistance change per degree Celsius. A ±10ppm/°C part experiences only 0.001% change per degree. Lower temperature coefficient provides better stability across the operating temperature range. Selection of lower temperature coefficient is appropriate for precision circuits or applications with wide temperature variation.

Q: Can MCU08050D1582BP parts be used if the application operates above 125°C?

A: No. The MCU08050D1582BP series is rated for maximum 125°C continuous operation. The original RG2012P-1582-B-T1 and most substitute parts support 155°C. If the application requires operation above 125°C, the MCU series is not suitable. Verify actual operating temperature requirements before part selection.

Q: What does "Anti-Sulfur" coating provide?

A: Anti-sulfur coating protects the resistor element from sulfur contamination in industrial environments, preventing performance degradation and premature failure. This feature is particularly important for automotive and harsh environment applications. Parts with anti-sulfur coating include RG2012P-1582-B-T1, RG2012P-1582-B-T5, RG2012N series, TNPW080515K8BEEA, and MCU series.

Q: Is the 0805 package dimension identical across all manufacturers?

A: Yes. The 0805 (2012 Metric) package is a standardized industry specification with dimensions 0.079" L × 0.049" W (2.00mm × 1.25mm). All substitute parts listed use this identical package. Height variation (0.020" to 0.026" seated maximum) is within standard PCB assembly tolerances and does not affect compatibility.

Q: What is Moisture Sensitivity Level (MSL) 1?

A: MSL 1 indicates unlimited shelf life without moisture exposure controls. The component does not require special desiccant storage or baking procedures before assembly. All parts listed carry MSL 1 rating, indicating identical moisture handling requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification, meeting regulatory requirements for hazardous substance restriction in electronic equipment.

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