RG2012P-3483-B-T1 Equivalent & Substitute Parts

Part Overview

The RG2012P-3483-B-T1 is a 348 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, designed for high-precision applications requiring tight tolerance and temperature stability across -55°C to 155°C operating range.

The RG2012P-3483-B-T1 is classified as obsolete. Equivalent and substitute parts are available from multiple manufacturers with identical or enhanced electrical and mechanical specifications, ensuring design continuity and supply chain flexibility.

Key Parameters

Parameter	Value
Resistance	348 kOhms
Tolerance	±0.1%
Power Rating	0.125W (1/8W)
Package / Case	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

Substitute parts for the RG2012P-3483-B-T1 are classified into two categories based on electrical and mechanical compatibility:

Direct Substitutes (Identical Specifications) Direct substitutes maintain all critical electrical parameters: 348 kOhms resistance, ±0.1% tolerance, 0.125W power rating, 0805 package, thin film composition, ±25ppm/°C temperature coefficient, and -55°C to 155°C operating range. These parts are interchangeable without circuit redesign.

Upgrade Substitutes (Enhanced Specifications) Upgrade substitutes improve upon the original specification in one or more parameters while maintaining core compatibility. Improvements include tighter tolerance (±0.05%), lower temperature coefficient (±10ppm/°C), or higher power rating (0.26W). These parts provide enhanced performance and are backward compatible.

Key Parameters Determining Substitution:

Resistance value: 348 kOhms (fixed)
Package / Case: 0805 (2012 Metric) (fixed)
Composition: Thin Film (fixed)
Tolerance: ±0.1% minimum (direct) or ±0.05% (upgrade)
Power Rating: 0.125W minimum (direct) or 0.26W (upgrade)
Temperature Coefficient: ±25ppm/°C (direct) or ±10ppm/°C (upgrade)
Operating Temperature: -55°C minimum and 155°C minimum (direct) or 175°C (upgrade)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Features	Product Status
RG2012P-3483-B-T1	Susumu	348 kOhms	±0.1%	0.125	±25	-55 ~ 155	Anti-Sulfur, AEC-Q200	Obsolete
RG2012P-3483-B-T5	Susumu	348 kOhms	±0.1%	0.125	±25	-55 ~ 155	Anti-Sulfur, AEC-Q200	Active
RG2012N-3483-B-T5	Susumu	348 kOhms	±0.1%	0.125	±10	-55 ~ 155	Anti-Sulfur, AEC-Q200	Active
RG2012N-3483-W-T1	Susumu	348 kOhms	±0.05%	0.125	±10	-55 ~ 155	Anti-Sulfur, AEC-Q200	Active
RG2012P-3483-W-T5	Susumu	348 kOhms	±0.05%	0.125	±25	-55 ~ 155	Anti-Sulfur, AEC-Q200	Active
4-2176094-5	TE Connectivity Passive Product	348 kOhms	±0.1%	0.25	±25	-55 ~ 155	Thin Film	Active
ERA-6AEB3483V	Panasonic Electronic Components	348 kOhms	±0.1%	0.125	±25	-55 ~ 155	AEC-Q200	Active
MCU08050D3483BP100	Vishay Beyschlag/Draloric/BC Components	348 kOhms	±0.1%	0.125	±25	-55 ~ 125	Anti-Sulfur	Active
MCU08050D3483BP500	Vishay Beyschlag/Draloric/BC Components	348 kOhms	±0.1%	0.125	±25	-55 ~ 125	Anti-Sulfur	Active
RT0805BRD07348KL	YAGEO	348 kOhms	±0.1%	0.125	±25	-55 ~ 155	Thin Film	Active
TNPW0805348KBEEA	Vishay Dale	348 kOhms	±0.1%	0.26	±25	-55 ~ 175	Anti-Sulfur, AEC-Q200, Moisture Resistant	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications)

RG2012P-3483-B-T5 is the primary direct substitute from Susumu. This part maintains all electrical and mechanical specifications of the obsolete RG2012P-3483-B-T1 while offering active product status and continuous supply availability. Both parts are ROHS3 compliant, AEC-Q200 qualified, and feature anti-sulfur coating.

ERA-6AEB3483V (Panasonic) and RT0805BRD07348KL (YAGEO) are functionally equivalent alternatives. Both maintain 348 kOhms ±0.1%, 0.125W power rating, ±25ppm/°C temperature coefficient, and -55°C to 155°C operating range. ERA-6AEB3483V carries AEC-Q200 qualification. All three direct substitutes are ROHS3 compliant and MSL 1 rated.

For Enhanced Performance (Upgrade Substitutes)

RG2012N-3483-B-T5 (Susumu) improves temperature coefficient to ±10ppm/°C while maintaining all other specifications. This upgrade is suitable for applications requiring superior temperature stability.

RG2012N-3483-W-T1 and RG2012P-3483-W-T5 (Susumu) offer tighter tolerance at ±0.05% with maintained or improved temperature coefficient. RG2012N-3483-W-T1 provides both ±0.05% tolerance and ±10ppm/°C temperature coefficient for maximum precision.

TNPW0805348KBEEA (Vishay Dale) provides increased power rating (0.26W) and extended operating temperature to 175°C while maintaining ±0.1% tolerance and AEC-Q200 qualification. This part is suitable for applications with higher thermal or power dissipation requirements.

For Higher Power Applications

4-2176094-5 (TE Connectivity) doubles the power rating to 0.25W while maintaining 348 kOhms ±0.1% and ±25ppm/°C specifications. This part is suitable for circuits requiring higher power dissipation capacity.

Operating Temperature Consideration

MCU08050D3483BP100 and MCU08050D3483BP500 (Vishay) operate to 125°C maximum, which is lower than the original specification of 155°C. These parts are suitable only for applications with maximum operating temperature not exceeding 125°C.

Frequently Asked Questions (FAQ)

Q: Can RG2012P-3483-B-T5 be used as a direct replacement for RG2012P-3483-B-T1?

A: Yes. RG2012P-3483-B-T5 is a direct substitute with identical electrical specifications (348 kOhms ±0.1%, 0.125W, ±25ppm/°C, -55°C to 155°C) and mechanical package (0805). The primary difference is product status (active versus obsolete) and packaging format. Both are ROHS3 compliant and AEC-Q200 qualified.

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

A: The RG2012N series offers improved temperature coefficient at ±10ppm/°C compared to RG2012P at ±25ppm/°C. Both series maintain identical resistance, tolerance, power rating, and package specifications. The RG2012N is suitable for applications requiring superior temperature stability.

Q: Can I use TNPW0805348KBEEA in place of RG2012P-3483-B-T1?

A: Yes, with considerations. TNPW0805348KBEEA maintains the same resistance (348 kOhms), tolerance (±0.1%), and package (0805). However, it provides higher power rating (0.26W versus 0.125W) and extended operating temperature (175°C versus 155°C). The increased power rating and temperature range make it suitable for more demanding applications. Physical height differs slightly (0.022" versus 0.020"), which may affect PCB layout in space-constrained designs.

Q: Are MCU08050D3483BP100 and MCU08050D3483BP500 suitable replacements?

A: These parts are suitable only if the application maximum operating temperature does not exceed 125°C. Both MCU parts operate to 125°C maximum, which is 30°C lower than the original RG2012P-3483-B-T1 specification of 155°C. Electrical specifications (348 kOhms ±0.1%, 0.125W, ±25ppm/°C) are identical. Verify thermal requirements before selection.

Q: What is the significance of the packaging suffix (T1 versus T5)?

A: The suffix indicates packaging format. T1 denotes cut tape or bulk packaging, while T5 denotes tape and reel (TR) packaging. Both formats contain identical components; the difference is in supply and handling format. T5 (tape and reel) is standard for automated assembly processes.

Q: Can I substitute ERA-6AEB3483V for the obsolete RG2012P-3483-B-T1?

A: Yes. ERA-6AEB3483V is a direct functional equivalent with identical specifications: 348 kOhms ±0.1%, 0.125W, ±25ppm/°C, -55°C to 155°C operating range, 0805 package, and AEC-Q200 qualification. Both are ROHS3 compliant and MSL 1 rated. Physical height differs slightly (0.024" versus 0.020"), which is negligible for most PCB designs.

Q: What advantage does RG2012N-3483-W-T1 provide over the original part?

A: RG2012N-3483-W-T1 provides two enhancements: tighter tolerance (±0.05% versus ±0.1%) and improved temperature coefficient (±10ppm/°C versus ±25ppm/°C). These improvements result in superior accuracy and temperature stability, making this part suitable for precision analog circuits and measurement applications where the original tolerance and temperature drift were marginal.

Q: Is 4-2176094-5 compatible with the original design?

A: 4-2176094-5 is electrically compatible (348 kOhms ±0.1%, ±25ppm/°C, -55°C to 155°C) but has doubled power rating (0.25W versus 0.125W). This part is suitable as a replacement and provides additional thermal margin. However, it lacks AEC-Q200 qualification and anti-sulfur coating present in the original. Use this part only if automotive qualification is not required.

Q: What is the impact of different temperature coefficients on circuit performance?

A: Temperature coefficient determines resistance change over temperature. The original RG2012P-3483-B-T1 at ±25ppm/°C experiences approximately 3.48 ohms change across the full -55°C to 155°C range. RG2012N series at ±10ppm/°C experiences approximately 1.39 ohms change. For precision circuits, lower temperature coefficient reduces drift and improves stability. For general-purpose applications, the difference is often negligible.

Q: Can TNPW0805348KBEEA be used in space-constrained PCB layouts?

A: TNPW0805348KBEEA has maximum seated height of 0.022" (0.55mm) compared to RG2012P-3483-B-T1 at 0.020" (0.50mm). The 0.002" difference is minimal and typically accommodated in standard PCB designs. Verify specific PCB clearance requirements if height is critical.

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