RG2012P-8251-B-T1 Equivalent & Substitute Parts

Part Overview

The RG2012P-8251-B-T1 is an 8.25 kOhms ±0.1% 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 obsolete, with 896 pieces available in stock. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications.

Key Parameters

Parameter	Value
Resistance	8.25 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
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RG2012P-8251-B-T1 is determined by the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 8.25 kOhms
Package type: 0805 (2012 Metric)
Power rating: 0.125W (1/8W)
Composition: Thin Film
Operating temperature range: -55°C ~ 155°C minimum
RoHS3 compliance
MSL rating: 1 (Unlimited)

Allowable Variation Parameters:

Tolerance: ±0.1% or tighter (±0.05%, ±0.02%)
Temperature coefficient: ±25ppm/°C or lower (±10ppm/°C, ±5ppm/°C)
Automotive rating: AEC-Q200 (required for automotive applications)
Packaging format: Tape & Reel (TR) acceptable for production environments

Substitute parts with tighter tolerance and lower temperature coefficient specifications provide enhanced performance characteristics while maintaining full electrical and mechanical compatibility.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Op Temp Range	Package	Status	Inventory (Pcs)
RG2012P-8251-B-T1	Susumu	8.25 kΩ	±0.1%	0.125	±25	-55 ~ 155°C	0805	Obsolete	896
RG2012P-8251-B-T5	Susumu	8.25 kΩ	±0.1%	0.125	±25	-55 ~ 155°C	0805	Active	13198
RG2012N-8251-B-T5	Susumu	8.25 kΩ	±0.1%	0.125	±10	-55 ~ 155°C	0805	Active	983
RG2012N-8251-W-T1	Susumu	8.25 kΩ	±0.05%	0.125	±10	-55 ~ 155°C	0805	Active	650
RG2012P-8251-W-T5	Susumu	8.25 kΩ	±0.05%	0.125	±25	-55 ~ 155°C	0805	Active	942
RG2012V-8251-B-T5	Susumu	8.25 kΩ	±0.1%	0.125	±5	-55 ~ 155°C	0805	Active	820
RG2012V-8251-P-T1	Susumu	8.25 kΩ	±0.02%	0.125	±5	-55 ~ 155°C	0805	Active	2755
RG2012V-8251-W-T1	Susumu	8.25 kΩ	±0.05%	0.125	±5	-55 ~ 155°C	0805	Active	1075
RG2012V-8251-W-T5	Susumu	8.25 kΩ	±0.05%	0.125	±5	-55 ~ 155°C	0805	Active	824
ERA-6AEB8251V	Panasonic Electronic Components	8.25 kΩ	±0.1%	0.125	±25	-55 ~ 155°C	0805	Active	3814
MCU08050D8251BP100	Vishay Beyschlag/Draloric/BC Components	8.25 kΩ	±0.1%	0.125	±25	-55 ~ 125°C	0805	Active	939

Engineering Selection Recommendations

Direct Substitutes (Identical Specifications):

RG2012P-8251-B-T5 is the primary direct substitute for RG2012P-8251-B-T1. Both parts share identical electrical specifications: 8.25 kOhms ±0.1% tolerance, ±25ppm/°C temperature coefficient, and 0.125W power rating in 0805 package. The primary difference is product status (Active vs. Obsolete) and packaging format (Tape & Reel vs. standard packaging). With 13,198 pieces in inventory, this part provides immediate availability for production requirements.

ERA-6AEB8251V from Panasonic Electronic Components is an alternative direct substitute meeting all electrical and mechanical specifications. This part carries AEC-Q200 automotive qualification and maintains the same operating temperature range (-55°C ~ 155°C). Inventory of 3,814 pieces supports sustained supply.

MCU08050D8251BP100 from Vishay Beyschlag/Draloric/BC Components is functionally equivalent with matching resistance, tolerance, and power rating. The operating temperature range extends to -55°C ~ 125°C, which is acceptable for most applications within the primary part's specified range. This part features anti-sulfur coating and is ROHS3 compliant.

Enhanced Performance Substitutes (Tighter Specifications):

RG2012V-8251-P-T1 provides the highest precision option with ±0.02% tolerance and ±5ppm/°C temperature coefficient. This part is suitable for applications requiring superior stability and accuracy. With 2,755 pieces in stock, it offers both performance enhancement and availability.

RG2012V-8251-W-T1 and RG2012V-8251-W-T5 offer ±0.05% tolerance with ±5ppm/°C temperature coefficient, providing improved performance over the original specification while maintaining full compatibility.

RG2012N-8251-B-T5 and RG2012N-8251-W-T1 deliver intermediate performance with ±10ppm/°C temperature coefficient, suitable for applications requiring better stability than the original ±25ppm/°C specification.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and AEC-Q200 automotive qualification where applicable.

Frequently Asked Questions (FAQ)

Q: Can RG2012P-8251-B-T5 be used as a direct replacement for RG2012P-8251-B-T1?

A: Yes. Both parts have identical electrical specifications: 8.25 kOhms ±0.1% tolerance, 0.125W power rating, ±25ppm/°C temperature coefficient, and 0805 package. The primary difference is product status and packaging format. RG2012P-8251-B-T5 is active production and available in Tape & Reel format.

Q: What is the difference between Susumu RG series variants (P, N, V)?

A: The letter designation indicates temperature coefficient performance. RG2012P series has ±25ppm/°C, RG2012N series has ±10ppm/°C, and RG2012V series has ±5ppm/°C. All maintain the same resistance value and package type. Lower temperature coefficients provide improved stability across the operating temperature range.

Q: Can I use a part with ±0.05% tolerance instead of ±0.1%?

A: Yes. Tighter tolerance specifications are fully compatible and provide enhanced accuracy. Parts such as RG2012P-8251-W-T5, RG2012N-8251-W-T1, RG2012V-8251-W-T1, and RG2012V-8251-W-T5 with ±0.05% tolerance are direct substitutes that exceed the original specification.

Q: Are cross-manufacturer substitutes available?

A: Yes. ERA-6AEB8251V (Panasonic) and MCU08050D8251BP100 (Vishay) are functionally equivalent alternatives. Both maintain 8.25 kOhms ±0.1% specification, 0.125W power rating, and 0805 package. Operating temperature ranges are -55°C ~ 155°C and -55°C ~ 125°C respectively.

Q: What is the significance of the T1 and T5 packaging designations?

A: T1 and T5 refer to packaging tape specifications for Tape & Reel formats. Both are standard production packaging formats. Selection between T1 and T5 depends on equipment compatibility and supply chain requirements rather than electrical performance.

Q: Is the MCU08050D8251BP100 suitable for applications requiring -55°C ~ 155°C operation?

A: The MCU08050D8251BP100 is rated for -55°C ~ 125°C operation. For applications requiring full -55°C ~ 155°C range, use Susumu RG series or Panasonic ERA-6AEB8251V parts.

Q: Do all substitute parts maintain AEC-Q200 automotive qualification?

A: Susumu RG series parts and Panasonic ERA-6AEB8251V carry AEC-Q200 qualification. MCU08050D8251BP100 does not list AEC-Q200 rating. For automotive applications requiring AEC-Q200 compliance, select from Susumu or Panasonic alternatives.

Q: What inventory levels support production continuity?

A: RG2012P-8251-B-T5 provides the highest inventory at 13,198 pieces. RG2012V-8251-P-T1 offers 2,755 pieces. ERA-6AEB8251V provides 3,814 pieces. These inventory levels support sustained production requirements.

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