RG2012P-2872-B-T1 Equivalent & Substitute Parts

Part Overview

The RG2012P-2872-B-T1 is a 28.7 kOhms ±0.1% 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 part is currently obsolete with limited inventory (945 pcs). Equivalent and substitute parts are necessary to ensure design continuity and maintain supply chain availability for ongoing production and repair applications.

Key Parameters

Parameter	Value
Resistance	28.7 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-2872-B-T1 is determined by the following critical parameters:

Primary Substitution Criteria:

Resistance value: 28.7 kOhms (exact match required)
Package type: 0805 (2012 Metric) (exact match required)
Composition: Thin Film (exact match required)
Tolerance: ±0.1% or tighter (±0.05% acceptable as upgrade)
Power rating: 0.125W minimum (higher ratings acceptable)
Temperature coefficient: ±25ppm/°C or better (±10ppm/°C acceptable as upgrade)
Operating temperature range: -55°C to 155°C minimum (extended ranges acceptable)
RoHS compliance: ROHS3 Compliant (required)
Moisture sensitivity: MSL 1 (required)

Substitution Categories:

Direct Equivalents maintain all electrical and mechanical specifications with identical or compatible packaging formats:

RG2012P-2872-B-T5 (Susumu, Tape & Reel packaging variant)
ERA-6AEB2872V (Panasonic, Cut Tape & Digi-Reel packaging)
MCU08050D2872BP100 (Vishay, Tape & Reel packaging)
MCU08050D2872BP500 (Vishay, Tape & Reel packaging)
RT0805BRD0728K7L (YAGEO, Tape & Reel packaging)

Upgraded Equivalents provide equal or superior electrical performance with enhanced specifications:

RG2012N-2872-B-T5 (improved temperature coefficient: ±10ppm/°C)
RG2012N-2872-W-T1 (improved tolerance: ±0.05%, improved temperature coefficient: ±10ppm/°C)
RG2012P-2872-W-T5 (improved tolerance: ±0.05%)

Higher Power Rating Equivalent maintains all specifications except increased power dissipation capability:

4-2176093-6 (TE Connectivity, 0.25W/1/4W rating)

Extended Temperature Range Equivalent provides superior thermal performance:

TNPW080528K7BEEA (Vishay Dale, 0.26W rating, -55°C to 175°C operating range)

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Op Temp Range (°C)	Package	Features	Status
RG2012P-2872-B-T1	Susumu	28.7k	±0.1%	0.125	±25	-55 ~ 155	0805	Anti-Sulfur, AEC-Q200	Obsolete
RG2012P-2872-B-T5	Susumu	28.7k	±0.1%	0.125	±25	-55 ~ 155	0805	Anti-Sulfur, AEC-Q200	Active
RG2012N-2872-B-T5	Susumu	28.7k	±0.1%	0.125	±10	-55 ~ 155	0805	Anti-Sulfur, AEC-Q200	Active
RG2012N-2872-W-T1	Susumu	28.7k	±0.05%	0.125	±10	-55 ~ 155	0805	Anti-Sulfur, AEC-Q200	Active
RG2012P-2872-W-T5	Susumu	28.7k	±0.05%	0.125	±25	-55 ~ 155	0805	Anti-Sulfur, AEC-Q200	Active
4-2176093-6	TE Connectivity	28.7k	±0.1%	0.25	±25	-55 ~ 155	0805	Thin Film	Active
ERA-6AEB2872V	Panasonic	28.7k	±0.1%	0.125	±25	-55 ~ 155	0805	AEC-Q200	Active
MCU08050D2872BP100	Vishay	28.7k	±0.1%	0.125	±25	-55 ~ 125	0805	Anti-Sulfur	Active
MCU08050D2872BP500	Vishay	28.7k	±0.1%	0.125	±25	-55 ~ 125	0805	Anti-Sulfur	Active
RT0805BRD0728K7L	YAGEO	28.7k	±0.1%	0.125	±25	-55 ~ 155	0805	Thin Film	Active
TNPW080528K7BEEA	Vishay Dale	28.7k	±0.1%	0.26	±25	-55 ~ 175	0805	Anti-Sulfur, AEC-Q200, Moisture Resistant	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

RG2012P-2872-B-T5 (Susumu) is the primary direct equivalent, offering identical electrical and mechanical specifications with active product status and higher inventory availability (27,196 pcs). This part maintains the same tolerance, power rating, temperature coefficient, and operating temperature range as the obsolete RG2012P-2872-B-T1, with the only difference being packaging format (Tape & Reel vs. bulk).

ERA-6AEB2872V (Panasonic) provides an alternative direct equivalent with active status and substantial inventory (9,213 pcs). This part maintains all critical specifications and includes AEC-Q200 automotive qualification.

RT0805BRD0728K7L (YAGEO) offers another direct equivalent option with active status and adequate inventory (829 pcs).

For Enhanced Performance (Upgraded Specifications):

RG2012N-2872-W-T1 (Susumu) provides the highest specification upgrade with improved tolerance (±0.05%) and superior temperature coefficient (±10ppm/°C), maintaining all other specifications. This part is suitable for applications requiring tighter tolerance control.

RG2012N-2872-B-T5 (Susumu) offers improved temperature coefficient (±10ppm/°C) while maintaining the original ±0.1% tolerance.

For Higher Power Dissipation Applications:

4-2176093-6 (TE Connectivity) is suitable when increased power handling is required, providing 0.25W (1/4W) rating while maintaining all other specifications. This part is appropriate for applications with higher thermal stress.

For Extended Temperature Range Applications:

TNPW080528K7BEEA (Vishay Dale) extends the upper operating temperature limit to 175°C and provides increased power rating (0.26W), suitable for high-temperature automotive and industrial applications.

For Temperature-Limited Applications:

MCU08050D2872BP100 and MCU08050D2872BP500 (Vishay) are suitable for applications with maximum operating temperature of 125°C, providing anti-sulfur coating and active product status.

Frequently Asked Questions (FAQ)

Q: Can RG2012P-2872-B-T5 be used as a direct replacement for RG2012P-2872-B-T1?

A: Yes. RG2012P-2872-B-T5 is a direct equivalent with identical electrical specifications (28.7 kOhms ±0.1%, 0.125W, ±25ppm/°C, -55°C to 155°C). The primary difference is packaging format (Tape & Reel vs. bulk). Both parts are Susumu RG series thin film resistors with anti-sulfur coating and AEC-Q200 qualification.

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

A: The RG2012N series provides improved temperature coefficient performance (±10ppm/°C) compared to the RG2012P series (±25ppm/°C). Both series maintain identical resistance values, tolerance options, power ratings, and package specifications. Selection depends on temperature stability requirements.

Q: Can I use a ±0.05% tolerance part where ±0.1% is specified?

A: Yes. Tighter tolerance specifications are compatible with applications requiring ±0.1% tolerance. Parts such as RG2012N-2872-W-T1 and RG2012P-2872-W-T5 with ±0.05% tolerance provide enhanced accuracy and are suitable for precision circuit applications.

Q: Are there differences in operating temperature ranges among the substitutes?

A: Yes. Most substitutes operate from -55°C to 155°C, matching the original part. However, MCU08050D2872BP100 and MCU08050D2872BP500 (Vishay) are limited to -55°C to 125°C. TNPW080528K7BEEA (Vishay Dale) extends to -55°C to 175°C. Verify application temperature requirements before selection.

Q: What is the significance of the packaging format (Tape & Reel vs. Cut Tape)?

A: Packaging format affects handling, storage, and automated assembly processes. Tape & Reel (TR) packaging is standard for high-volume automated production. Cut Tape (CT) packaging is suitable for lower-volume applications or manual assembly. Both formats contain identical components; selection depends on manufacturing process requirements.

Q: Can I substitute a 0.25W rated resistor for a 0.125W rated resistor?

A: Yes. Higher power ratings are compatible with applications specified for lower power ratings. The 4-2176093-6 (0.25W) can replace the RG2012P-2872-B-T1 (0.125W) without electrical performance degradation. This substitution is appropriate for applications with higher thermal stress or design margin requirements.

Q: Are all substitute parts AEC-Q200 qualified?

A: No. AEC-Q200 qualification is present in RG2012P-2872-B-T1, RG2012P-2872-B-T5, RG2012N-2872-B-T5, RG2012N-2872-W-T1, RG2012P-2872-W-T5, ERA-6AEB2872V, and TNPW080528K7BEEA. MCU08050D2872BP100, MCU08050D2872BP500, and RT0805BRD0728K7L do not list AEC-Q200 qualification. Verify automotive qualification requirements for your application.

Q: What does anti-sulfur coating provide?

A: Anti-sulfur coating protects resistor terminations from sulfur-induced corrosion in high-sulfur environments. This feature is present in RG2012P-2872-B-T1, RG2012P-2872-B-T5, RG2012N-2872-B-T5, RG2012N-2872-W-T1, RG2012P-2872-W-T5, MCU08050D2872BP100, MCU08050D2872BP500, and TNPW080528K7BEEA. Applications in industrial or harsh environments benefit from this protection.

Q: Is RoHS3 compliance maintained across all substitutes?

A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the original RG2012P-2872-B-T1 specification.

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

A: MSL 1 indicates unlimited shelf life without moisture baking requirements. All listed parts maintain MSL 1 rating, ensuring compatibility with standard storage and handling procedures.

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