RG2012N-103-B-T1 Equivalent & Substitute Parts

Part Overview

The RG2012N-103-B-T1 is a 10 kOhms ±0.1% 0.125W (1/8W) chip resistor in 0805 (2012 Metric) package manufactured by Susumu. This thin film resistor features anti-sulfur coating and automotive AEC-Q200 qualification. The part is currently obsolete, necessitating identification of equivalent and substitute components for ongoing production and repair applications. Substitute parts maintain the same resistance value, power rating, and package footprint while offering variations in tolerance, temperature coefficient, and packaging format.

Key Parameters

Parameter	Value
Resistance	10 kOhms
Tolerance	±0.1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±10ppm/°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 RG2012N-103-B-T1 is determined by the following critical parameters:

Mandatory Matching Parameters:

Resistance: 10 kOhms
Power Rating: 0.125W (1/8W)
Package: 0805 (2012 Metric)
Composition: Thin Film
Operating Temperature Range: -55°C ~ 155°C minimum
Regulatory Compliance: AEC-Q200 and ROHS3

Allowable Variations:

Tolerance: ±0.1% (main part) to ±0.02% (upgraded tolerance)
Temperature Coefficient: ±10ppm/°C (main part) to ±5ppm/°C (improved stability)
Packaging Format: Bulk or Tape & Reel (TR)
Manufacturer: Different manufacturers with equivalent specifications

Substitute parts are grouped into two categories: direct substitutes (identical tolerance and temperature coefficient) and upgrade substitutes (improved tolerance and/or temperature coefficient). All substitutes maintain electrical and mechanical compatibility with the original part.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	AEC-Q200	Product Status	Packaging
RG2012N-103-B-T1	Susumu	10 kOhms	±0.1%	0.125	±10	-55 ~ 155	Yes	Obsolete	Bulk
RG2012N-103-B-T5	Susumu	10 kOhms	±0.1%	0.125	±10	-55 ~ 155	Yes	Active	Tape & Reel
RG2012N-103-W-T1	Susumu	10 kOhms	±0.05%	0.125	±10	-55 ~ 155	Yes	Active	Tape & Reel
RG2012N-103-W-T5	Susumu	10 kOhms	±0.05%	0.125	±10	-55 ~ 155	Yes	Active	Tape & Reel
RG2012V-103-B-T5	Susumu	10 kOhms	±0.1%	0.125	±5	-55 ~ 155	Yes	Active	Tape & Reel
RG2012V-103-P-T1	Susumu	10 kOhms	±0.02%	0.125	±5	-55 ~ 155	Yes	Active	Tape & Reel
RG2012V-103-W-T1	Susumu	10 kOhms	±0.05%	0.125	±5	-55 ~ 155	Yes	Active	Tape & Reel
RG2012V-103-W-T5	Susumu	10 kOhms	±0.05%	0.125	±5	-55 ~ 155	Yes	Active	Tape & Reel
ERA-6ARB103V	Panasonic Electronic Components	10 kOhms	±0.1%	0.125	±10	-55 ~ 155	Yes	Active	Tape & Reel
MCU08050F1002BP100	Vishay Beyschlag/Draloric/BC Components	10 kOhms	±0.1%	0.125	±10	-55 ~ 125	No	Active	Tape & Reel
RT0805BRB0710KL	YAGEO	10 kOhms	±0.1%	0.125	±10	-55 ~ 155	No	Active	Tape & Reel

Engineering Selection Recommendations

Primary Substitutes (Direct Equivalents):

RG2012N-103-B-T5 is the direct equivalent to RG2012N-103-B-T1, offering identical electrical specifications with active product status. The only difference is packaging format (Tape & Reel versus bulk). This part is recommended for applications requiring the exact tolerance (±0.1%) and temperature coefficient (±10ppm/°C) of the original component.

ERA-6ARB103V (Panasonic) provides equivalent electrical performance with AEC-Q200 qualification and active status. This part is suitable for applications where multi-source qualification is required.

Upgraded Substitutes (Improved Tolerance):

RG2012N-103-W-T1 and RG2012N-103-W-T5 offer improved tolerance (±0.05%) while maintaining the same temperature coefficient (±10ppm/°C) and operating temperature range. These parts are suitable for applications requiring tighter tolerance specifications.

RG2012V series parts (RG2012V-103-B-T5, RG2012V-103-P-T1, RG2012V-103-W-T1, RG2012V-103-W-T5) provide improved temperature coefficient (±5ppm/°C) with tolerance options ranging from ±0.1% to ±0.02%. These parts are suitable for precision applications requiring enhanced temperature stability.

Alternative Manufacturers:

RT0805BRB0710KL (YAGEO) and MCU08050F1002BP100 (Vishay) provide equivalent electrical specifications. RT0805BRB0710KL maintains the full operating temperature range (-55°C ~ 155°C), while MCU08050F1002BP100 is limited to -55°C ~ 125°C. MCU08050F1002BP100 lacks AEC-Q200 qualification and is not recommended for automotive applications.

Compliance Considerations:

All Susumu RG and RG2012V series parts and Panasonic ERA-6ARB103V maintain AEC-Q200 automotive qualification and ROHS3 compliance. Selection should prioritize these parts for automotive and regulated applications.

Frequently Asked Questions (FAQ)

Q: Can RG2012N-103-B-T5 be used as a direct replacement for RG2012N-103-B-T1?

A: Yes. RG2012N-103-B-T5 is electrically and mechanically identical to RG2012N-103-B-T1. The difference is packaging format: RG2012N-103-B-T1 is supplied in bulk, while RG2012N-103-B-T5 is supplied in Tape & Reel format. Both parts have identical resistance (10 kOhms), tolerance (±0.1%), power rating (0.125W), package (0805), and operating temperature range (-55°C ~ 155°C).

Q: What is the difference between RG2012N and RG2012V series?

A: The RG2012N series has a temperature coefficient of ±10ppm/°C, while the RG2012V series has a temperature coefficient of ±5ppm/°C. The RG2012V series provides improved temperature stability. Both series maintain the same resistance, power rating, and package specifications.

Q: Can I use RG2012N-103-W-T1 instead of RG2012N-103-B-T1?

A: Yes. RG2012N-103-W-T1 is a suitable upgrade substitute. It maintains the same resistance (10 kOhms), power rating (0.125W), package (0805), and operating temperature range (-55°C ~ 155°C). The tolerance is improved from ±0.1% to ±0.05%, making it suitable for applications requiring tighter tolerance specifications.

Q: Is MCU08050F1002BP100 suitable for automotive applications?

A: MCU08050F1002BP100 is not recommended for automotive applications. While it meets the electrical specifications (10 kOhms, ±0.1%, 0.125W, 0805 package), it lacks AEC-Q200 automotive qualification. Additionally, its operating temperature range is limited to -55°C ~ 125°C, which is narrower than the original part's -55°C ~ 155°C range.

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

A: Packaging format affects supply and assembly processes. Bulk packaging (indicated by -T1 suffix in some parts) is suitable for manual assembly or small-volume applications. Tape & Reel packaging (indicated by -T5 suffix) is designed for automated pick-and-place assembly and high-volume production. Electrically and mechanically, the parts are identical.

Q: Can I substitute RT0805BRB0710KL for RG2012N-103-B-T1?

A: RT0805BRB0710KL is electrically compatible with RG2012N-103-B-T1, offering the same resistance (10 kOhms), tolerance (±0.1%), power rating (0.125W), and operating temperature range (-55°C ~ 155°C). However, RT0805BRB0710KL lacks AEC-Q200 automotive qualification. Use this part only in non-automotive applications or where automotive qualification is not required.

Q: What does the tolerance specification (±0.1%, ±0.05%, ±0.02%) mean for my application?

A: Tolerance specifies the maximum deviation of the actual resistance value from the nominal 10 kOhms specification. ±0.1% means the actual value will be between 9.99 kOhms and 10.01 kOhms. ±0.05% provides tighter tolerance (9.995 kOhms to 10.005 kOhms), and ±0.02% provides the tightest tolerance (9.998 kOhms to 10.002 kOhms). Select tolerance based on circuit requirements for precision and stability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed in this reference are ROHS3 compliant and have Moisture Sensitivity Level 1 (Unlimited), matching the original RG2012N-103-B-T1 specifications.

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