RG2012P-303-B-T1 Equivalent & Substitute Parts

Part Overview

The RG2012P-303-B-T1 is a 30 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 maintenance applications. Active alternatives with identical or enhanced electrical characteristics are available from multiple manufacturers.

Key Parameters

Parameter	Value
Resistance	30 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-303-B-T1 is determined by the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 30 kOhms
Package type: 0805 (2012 Metric)
Composition: Thin Film
Tolerance: ±0.1% or tighter (±0.05%)
Power rating: 0.125W minimum
Operating temperature range: Must encompass -55°C to 155°C or equivalent
RoHS compliance: ROHS3 Compliant

Acceptable Variations:

Temperature coefficient: ±25ppm/°C or ±10ppm/°C (tighter tolerance acceptable)
Power rating: 0.26W acceptable (higher rating compatible)
Packaging format: Tape & Reel (TR) acceptable for bulk applications
Automotive certification: AEC-Q200 preferred but not mandatory for all substitutes

Substitute parts are grouped into three categories based on tolerance and temperature coefficient specifications, with direct equivalents and upgraded alternatives identified.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Package	AEC-Q200	Product Status
RG2012P-303-B-T1	Susumu	30k	±0.1%	0.125	±25	-55 ~ 155	0805	Yes	Obsolete
RG2012P-303-B-T5	Susumu	30k	±0.1%	0.125	±25	-55 ~ 155	0805	Yes	Active
RG2012N-303-B-T5	Susumu	30k	±0.1%	0.125	±10	-55 ~ 155	0805	Yes	Active
RG2012N-303-W-T5	Susumu	30k	±0.05%	0.125	±10	-55 ~ 155	0805	Yes	Active
RG2012P-303-W-T5	Susumu	30k	±0.05%	0.125	±25	-55 ~ 155	0805	Yes	Active
ERA-6AEB303V	Panasonic Electronic Components	30k	±0.1%	0.125	±25	-55 ~ 155	0805	Yes	Active
MCU08050D3002BP100	Vishay Beyschlag/Draloric/BC Components	30k	±0.1%	0.125	±25	-55 ~ 125	0805	No	Active
MCU08050D3002BP500	Vishay Beyschlag/Draloric/BC Components	30k	±0.1%	0.125	±25	-55 ~ 125	0805	No	Active
RT0805BRD0730KL	YAGEO	30k	±0.1%	0.125	±25	-55 ~ 155	0805	No	Active
TNPW080530K0BEEA	Vishay Dale	30k	±0.1%	0.26	±25	-55 ~ 175	0805	Yes	Active
TNPW080530K0BEEN	Vishay Dale	30k	±0.1%	0.26	±25	-55 ~ 175	0805	Yes	Active

Engineering Selection Recommendations

Direct Equivalent (Same Manufacturer): RG2012P-303-B-T5 is the direct active equivalent from Susumu. This part maintains identical electrical specifications and packaging format while offering improved availability. The only difference is packaging configuration (Tape & Reel format), which is standard for production environments.

Upgraded Alternatives (Susumu Series): RG2012N-303-B-T5 and RG2012N-303-W-T5 provide enhanced performance with tighter temperature coefficient (±10ppm/°C) and improved tolerance (±0.05% for the -W variant). These parts are suitable for applications requiring superior stability and precision.

Cross-Manufacturer Equivalents: ERA-6AEB303V (Panasonic), RT0805BRD0730KL (YAGEO), and TNPW080530K0BEEA/TNPW080530K0BEEN (Vishay Dale) provide functional equivalence with identical resistance, tolerance, and power ratings. ERA-6AEB303V and TNPW series maintain AEC-Q200 automotive qualification and extended temperature ranges. TNPW series offers higher power rating (0.26W) and extended upper temperature limit (175°C).

Conditional Substitutes: MCU08050D3002BP100 and MCU08050D3002BP500 (Vishay Beyschlag) match electrical specifications but operate to 125°C maximum, limiting use in applications requiring the full -55°C to 155°C range. These parts lack AEC-Q200 certification.

Selection Criteria:

For automotive applications requiring AEC-Q200 compliance: Select from Susumu RG series, Panasonic ERA-6AEB303V, or Vishay Dale TNPW series
For extended temperature operation to 175°C: TNPW080530K0BEEA or TNPW080530K0BEEN
For improved stability: Susumu RG2012N series with ±10ppm/°C temperature coefficient
For tighter tolerance: Susumu RG2012N-303-W-T5 or RG2012P-303-W-T5 with ±0.05% tolerance

Frequently Asked Questions (FAQ)

Q: Can RG2012P-303-B-T5 directly replace RG2012P-303-B-T1? A: Yes. RG2012P-303-B-T5 is the active production equivalent with identical electrical and mechanical specifications. The difference is packaging format (Tape & Reel versus individual packaging), which does not affect component performance.

Q: What is the difference between RG2012P and RG2012N series? A: The RG2012N series features a tighter temperature coefficient of ±10ppm/°C compared to ±25ppm/°C in the RG2012P series. The -N designation indicates enhanced thermal stability. Both series maintain the same resistance value, tolerance, and power rating.

Q: Are the Susumu RG2012N-303-W variants compatible with the original part? A: Yes, with enhanced performance. The -W designation indicates ±0.05% tolerance (tighter than the original ±0.1%). These parts are fully compatible and provide superior precision for applications sensitive to resistance variation.

Q: Why do TNPW080530K0BEEA and TNPW080530K0BEEN have higher power ratings? A: The TNPW e3 series is rated for 0.26W compared to 0.125W for the original part. Higher power rating indicates greater thermal capability and does not affect compatibility. These parts operate to 175°C maximum temperature, exceeding the original 155°C limit.

Q: Can MCU08050D3002BP100 be used in applications requiring -55°C to 155°C operation? A: No. The MCU series operates only to 125°C maximum. For applications requiring the full -55°C to 155°C range, select from Susumu RG series, Panasonic ERA-6AEB303V, YAGEO RT0805BRD0730KL, or Vishay Dale TNPW series.

Q: Is AEC-Q200 certification required for all substitutes? A: AEC-Q200 certification is mandatory for automotive applications. The original RG2012P-303-B-T1 carries this certification. Equivalent parts with AEC-Q200 qualification include Susumu RG series, Panasonic ERA-6AEB303V, and Vishay Dale TNPW series. MCU and YAGEO RT series lack this certification.

Q: What is the significance of the -T1 and -T5 suffixes? A: The -T1 suffix indicates individual packaging, while -T5 indicates Tape & Reel packaging. Both formats contain identical components; the difference is in delivery and handling format for manufacturing environments.

Q: Can parts with ±0.05% tolerance replace parts specified at ±0.1%? A: Yes. Tighter tolerance is a compatible upgrade. Parts with ±0.05% tolerance (RG2012N-303-W-T5 and RG2012P-303-W-T5) exceed the original ±0.1% specification and are fully interchangeable.

Q: Are there any height differences between substitute parts? A: Minor height variations exist. The original RG2012P-303-B-T1 has maximum seated height of 0.020" (0.50mm). Panasonic ERA-6AEB303V and YAGEO RT0805BRD0730KL are 0.024" (0.60mm). Vishay MCU and TNPW series are 0.022" (0.55mm). These variations are within standard PCB assembly tolerances for 0805 packages.

Q: Which substitute offers the best long-term availability? A: Panasonic ERA-6AEB303V shows the highest inventory level (48,790 pcs) among active substitutes, indicating strong market availability. Susumu RG2012P-303-B-T5 (14,647 pcs) and YAGEO RT0805BRD0730KL (22,881 pcs) also demonstrate robust supply.

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