RG2012N-333-B-T1 Equivalent & Substitute Parts

Part Overview

The RG2012N-333-B-T1 is a 33 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 in automotive and industrial environments. The part is currently obsolete, necessitating identification of equivalent and substitute components that maintain electrical and mechanical compatibility with existing designs.

Key Parameters

Parameter	Value
Resistance	33 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-333-B-T1 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Resistance value: 33 kOhms
Package / Case: 0805 (2012 Metric)
Composition: Thin Film
Temperature Coefficient: ±10ppm/°C
Moisture Sensitivity Level: 1 (Unlimited)
RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

Tolerance: ±0.1% (direct substitutes) or ±0.05% (upgrade substitutes with improved precision)
Power Rating: 0.125W minimum (0.26W acceptable as upgrade with increased power dissipation capability)
Operating Temperature Range: -55°C ~ 155°C minimum (extended to -55°C ~ 175°C acceptable as upgrade)
Automotive Rating: AEC-Q200 required for direct substitutes; non-automotive alternatives excluded
Packaging: Tape & Reel (TR) acceptable for direct substitutes; original packaging type (-) is obsolete

Substitute parts are grouped into two categories: direct equivalents maintaining ±0.1% tolerance and 0.125W power rating, and upgrade alternatives offering improved tolerance (±0.05%) or enhanced power rating (0.26W) while maintaining all mandatory compatibility parameters.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	AEC-Q200	Status
RG2012N-333-B-T1	Susumu	33 kΩ	±0.1%	0.125	0805	±10ppm/°C	-55°C ~ 155°C	Yes	Obsolete
RG2012N-333-B-T5	Susumu	33 kΩ	±0.1%	0.125	0805	±10ppm/°C	-55°C ~ 155°C	Yes	Active
RG2012N-333-W-T1	Susumu	33 kΩ	±0.05%	0.125	0805	±10ppm/°C	-55°C ~ 155°C	Yes	Active
RG2012N-333-W-T5	Susumu	33 kΩ	±0.05%	0.125	0805	±10ppm/°C	-55°C ~ 155°C	Yes	Active
ERA-6ARB333V	Panasonic Electronic Components	33 kΩ	±0.1%	0.125	0805	±10ppm/°C	-55°C ~ 155°C	Yes	Active
ERA-6ARW333V	Panasonic Electronic Components	33 kΩ	±0.05%	0.125	0805	±10ppm/°C	-55°C ~ 155°C	Yes	Active
RT0805WRB0733KL	YAGEO	33 kΩ	±0.05%	0.125	0805	±10ppm/°C	-55°C ~ 155°C	No	Active
TNPW080533K0BYEA	Vishay Dale	33 kΩ	±0.1%	0.26	0805	±10ppm/°C	-55°C ~ 175°C	Yes	Active
TNPW080533K0BYEN	Vishay Dale	33 kΩ	±0.1%	0.26	0805	±10ppm/°C	-55°C ~ 175°C	Yes	Active

Engineering Selection Recommendations

Direct Equivalent (Same Electrical Specifications):

RG2012N-333-B-T5 (Susumu) is the direct equivalent replacement for the obsolete RG2012N-333-B-T1. Both parts maintain identical electrical parameters: 33 kOhms ±0.1% tolerance, 0.125W power rating, and AEC-Q200 automotive qualification. The primary difference is packaging format (Tape & Reel vs. original packaging). This part is currently in active production status with 1080 units in stock.

ERA-6ARB333V (Panasonic Electronic Components) provides equivalent electrical performance with identical tolerance (±0.1%), power rating (0.125W), and AEC-Q200 qualification. This part is actively produced with 15223 units in stock, offering superior availability.

Upgrade Alternatives (Enhanced Specifications):

RG2012N-333-W-T1 and RG2012N-333-W-T5 (Susumu) offer improved tolerance of ±0.05% while maintaining all other electrical and mechanical parameters. These upgrades are suitable for applications requiring higher precision without design modification.

ERA-6ARW333V (Panasonic Electronic Components) provides ±0.05% tolerance upgrade with AEC-Q200 qualification and 20189 units in stock, offering both improved precision and superior availability.

RT0805WRB0733KL (YAGEO) offers ±0.05% tolerance but lacks AEC-Q200 automotive qualification. This part is suitable only for non-automotive applications or where automotive certification is not required.

TNPW080533K0BYEA and TNPW080533K0BYEN (Vishay Dale) provide enhanced power rating of 0.26W with extended operating temperature range (-55°C ~ 175°C) and AEC-Q200 qualification. These parts are suitable for applications requiring higher power dissipation capability or extended temperature operation.

Frequently Asked Questions (FAQ)

Q: Can RG2012N-333-B-T5 be used as a direct replacement for RG2012N-333-B-T1?

A: Yes. RG2012N-333-B-T5 is a direct equivalent with identical electrical specifications (33 kOhms ±0.1%, 0.125W, AEC-Q200). The only difference is packaging format (Tape & Reel). Both parts are functionally interchangeable in circuit applications.

Q: What is the difference between the RG2012N-333-B series and RG2012N-333-W series?

A: The primary difference is tolerance specification. The -B series maintains ±0.1% tolerance, while the -W series offers improved ±0.05% tolerance. All other electrical and mechanical parameters remain identical. The -W series is suitable for precision-critical applications.

Q: Are Panasonic ERA-6ARB333V and ERA-6ARW333V suitable replacements?

A: Yes. ERA-6ARB333V is a direct equivalent to RG2012N-333-B-T1 with matching ±0.1% tolerance and 0.125W power rating. ERA-6ARW333V is an upgrade option with ±0.05% tolerance. Both maintain AEC-Q200 qualification and are actively produced with high inventory availability.

Q: Can TNPW080533K0BYEN be used in place of RG2012N-333-B-T1?

A: TNPW080533K0BYEN is compatible from a mechanical and thermal standpoint (0805 package, ±10ppm/°C temperature coefficient, -55°C ~ 175°C operating range). However, it features a higher power rating (0.26W vs. 0.125W) and extended temperature range. This part is suitable as an upgrade for applications requiring higher power dissipation or extended temperature operation while maintaining AEC-Q200 qualification.

Q: Is RT0805WRB0733KL a suitable replacement?

A: RT0805WRB0733KL maintains mechanical compatibility (0805 package) and electrical parameters (33 kOhms, ±0.05% tolerance, 0.125W, ±10ppm/°C). However, this part lacks AEC-Q200 automotive qualification. It is suitable only for non-automotive applications or where automotive certification is not a design requirement.

Q: What is the significance of the -T1 and -T5 suffixes in Susumu part numbers?

A: The -T1 and -T5 suffixes indicate different packaging formats. -T1 represents the original packaging type (now obsolete), while -T5 represents Tape & Reel packaging (currently active production). Electrical specifications remain identical between these variants.

Q: Can I use a higher tolerance part (±0.1%) in a circuit designed for ±0.05% tolerance?

A: No. Using a part with lower precision (higher tolerance) in a circuit designed for higher precision may result in circuit performance degradation or failure to meet design specifications. Tolerance selection must match or exceed design requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance, matching the original RG2012N-333-B-T1 specification. All parts are also REACH Unaffected and classified as EAR99 for export control purposes.

Q: What is the difference in height between substitute parts?

A: Height variations are minimal. RG2012N-333-B-T1 and Susumu RG series parts have maximum seated height of 0.020" (0.50mm). Panasonic ERA-6A series and YAGEO RT series parts have maximum seated height of 0.024" (0.60mm). Vishay Dale TNPW series parts have maximum seated height of 0.022" (0.55mm). These variations are within standard PCB assembly tolerances and do not affect interchangeability.

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