RG2012P-4320-B-T1 Equivalent & Substitute Parts

Part Overview

The RG2012P-4320-B-T1 is a 432 Ohms ±0.1% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component features anti-sulfur coating and automotive AEC-Q200 qualification, suitable for high-reliability applications requiring precision resistance values. The part is currently obsolete, necessitating identification of functionally equivalent active alternatives that maintain electrical and mechanical compatibility with existing designs.

Key Parameters

Parameter	Value
Resistance	432 Ohms
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 to 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-4320-B-T1 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Resistance value: 432 Ohms (exact match required)
Package type: 0805 (2012 Metric) (physical and electrical footprint compatibility)
Power rating: 0.125W minimum (1/8W or higher acceptable)
Operating temperature range: -55°C to 155°C minimum (full range required)
Composition: Thin film (maintains precision characteristics)

Acceptable Variation Parameters:

Tolerance: ±0.1% or tighter (±0.05%, ±0.02% are acceptable upgrades)
Temperature coefficient: ±25ppm/°C or lower (±10ppm/°C, ±5ppm/°C are acceptable upgrades)
Packaging format: Tape & Reel (TR) acceptable as direct replacement for bulk packaging
Automotive qualification: AEC-Q200 maintained across all qualified substitutes

Substitutes are categorized as direct replacements (identical electrical specifications) or upgrades (improved tolerance or temperature coefficient performance while maintaining all mandatory parameters).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Packaging	Status	Inventory
RG2012P-4320-B-T1	Susumu	432 Ω	±0.1%	0.125	±25	Bulk	Obsolete	805 Pcs
RG2012P-4320-B-T5	Susumu	432 Ω	±0.1%	0.125	±25	Tape & Reel	Active	963 Pcs
RG2012N-4320-B-T5	Susumu	432 Ω	±0.1%	0.125	±10	Tape & Reel	Active	980 Pcs
RG2012N-4320-W-T1	Susumu	432 Ω	±0.05%	0.125	±10	Tape & Reel	Active	1073 Pcs
RG2012P-4320-W-T5	Susumu	432 Ω	±0.05%	0.125	±25	Tape & Reel	Active	924 Pcs
RG2012V-4320-B-T5	Susumu	432 Ω	±0.1%	0.125	±5	Tape & Reel	Active	941 Pcs
RG2012V-4320-P-T1	Susumu	432 Ω	±0.02%	0.125	±5	Tape & Reel	Active	943 Pcs
RG2012V-4320-W-T1	Susumu	432 Ω	±0.05%	0.125	±5	Tape & Reel	Active	1050 Pcs
RG2012V-4320-W-T5	Susumu	432 Ω	±0.05%	0.125	±5	Tape & Reel	Active	618 Pcs
8-2176091-3	TE Connectivity	432 Ω	±0.1%	0.25	±25	Tape & Reel	Active	3134 Pcs
ERA-6AEB4320V	Panasonic	432 Ω	±0.1%	0.125	±25	Tape & Reel	Active	11059 Pcs

Engineering Selection Recommendations

Direct Replacement (Identical Electrical Specifications):

RG2012P-4320-B-T5 (Susumu) provides direct electrical equivalence to the obsolete RG2012P-4320-B-T1, with identical resistance, tolerance, power rating, and temperature coefficient. The only difference is packaging format (Tape & Reel versus bulk), which does not affect electrical performance. This part maintains active product status and AEC-Q200 automotive qualification.

ERA-6AEB4320V (Panasonic) offers direct electrical equivalence with identical specifications and maintains AEC-Q200 automotive qualification. This part has the highest inventory availability (11,059 units) and is suitable for applications requiring automotive-grade reliability.

Upgraded Performance Options:

RG2012V-4320-B-T5 (Susumu) provides improved temperature coefficient performance (±5ppm/°C versus ±25ppm/°C) while maintaining ±0.1% tolerance and all other mandatory parameters. This upgrade reduces temperature-induced resistance drift.

RG2012V-4320-W-T1 and RG2012V-4320-W-T5 (Susumu) offer both improved tolerance (±0.05%) and temperature coefficient (±5ppm/°C), providing enhanced precision for applications requiring tighter resistance stability.

RG2012V-4320-P-T1 (Susumu) provides the highest precision option with ±0.02% tolerance and ±5ppm/°C temperature coefficient, suitable for precision measurement and calibration circuits.

Higher Power Rating Option:

8-2176091-3 (TE Connectivity) maintains electrical specifications but provides doubled power rating (0.25W versus 0.125W). This part is suitable for applications where thermal margin or higher dissipation capability is required, though it does not meet the original 1/8W specification.

All recommended substitutes maintain ROHS3 compliance, MSL 1 rating, and -55°C to 155°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can RG2012P-4320-B-T5 be used as a direct replacement for RG2012P-4320-B-T1?

A: Yes. RG2012P-4320-B-T5 is electrically identical to the obsolete RG2012P-4320-B-T1. Both parts have 432 Ohms resistance, ±0.1% tolerance, 0.125W power rating, and ±25ppm/°C temperature coefficient. The only difference is packaging format (Tape & Reel versus bulk), which does not affect circuit performance.

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 better resistance stability across temperature variations.

Q: Can I use ERA-6AEB4320V instead of the Susumu part?

A: Yes. ERA-6AEB4320V is electrically equivalent with identical 432 Ohms resistance, ±0.1% tolerance, 0.125W power rating, and ±25ppm/°C temperature coefficient. Both parts are AEC-Q200 qualified and suitable for automotive applications. ERA-6AEB4320V has significantly higher inventory availability.

Q: What does the tolerance designation (B, W, P) indicate in Susumu part numbers?

A: The tolerance letter indicates resistance accuracy. B designates ±0.1% tolerance, W designates ±0.05% tolerance, and P designates ±0.02% tolerance. Tighter tolerances (W and P) provide more precise resistance values for applications requiring higher accuracy.

Q: Is 8-2176091-3 compatible with the original design?

A: 8-2176091-3 is electrically compatible but has a higher power rating (0.25W versus 0.125W). It can be used in applications where the original 1/8W specification is not a limiting constraint. The higher power rating provides additional thermal margin but does not change electrical performance at normal operating currents.

Q: Are all substitute parts AEC-Q200 qualified?

A: Susumu RG series parts (RG2012P, RG2012N, RG2012V variants) and Panasonic ERA-6AEB4320V are all AEC-Q200 qualified. TE Connectivity 8-2176091-3 does not carry AEC-Q200 designation. For automotive applications requiring AEC-Q200 compliance, use Susumu or Panasonic alternatives.

Q: Can I upgrade to a tighter tolerance part without circuit redesign?

A: Yes. Parts with tighter tolerance (±0.05% or ±0.02%) are direct upgrades that maintain all mandatory parameters. Tighter tolerance parts provide improved resistance accuracy without requiring circuit modifications. They are suitable for precision applications such as measurement circuits, reference networks, and calibration circuits.

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

A: T1 and T5 refer to tape packaging specifications. Both are Tape & Reel formats suitable for automated assembly. The designation does not affect electrical performance. Selection between T1 and T5 depends on equipment compatibility and supply chain requirements.

Q: Are all parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. All parts are suitable for lead-free soldering processes and meet environmental compliance requirements.

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