RG1005P-2940-C-T10 Equivalent & Substitute Parts

Part Overview

The RG1005P-2940-C-T10 is a 294 Ohms ±0.25% thin film chip resistor in 0402 (1005 Metric) package rated for 0.063W (1/16W) power dissipation. This Susumu component features anti-sulfur coating and automotive AEC-Q200 qualification, designed for operation across -55°C to 155°C. 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	294 Ohms
Tolerance	±0.25%
Power Rating	0.063W (1/16W)
Package	0402 (1005 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 RG1005P-2940-C-T10 is determined by strict equivalence in the following parameters:

Critical Parameters (Must Match):

Resistance value: 294 Ohms
Package type: 0402 (1005 Metric)
Power rating: 0.063W (1/16W)
Composition: Thin Film
Operating temperature range: -55°C to 155°C
RoHS compliance: ROHS3 Compliant
Moisture sensitivity: MSL 1

Allowable Variations:

Tolerance: May be equal to or tighter than ±0.25%
Temperature coefficient: May be equal to or lower than ±25ppm/°C
Automotive qualification: AEC-Q200 rating is maintained across all substitutes
Manufacturer: Different manufacturers acceptable if all electrical and mechanical parameters align

Substitute parts are grouped into two categories: Susumu RG series upgrades with improved tolerance and temperature coefficient specifications, and direct equivalents from alternative manufacturers (YAGEO, TE Connectivity, Panasonic) that maintain the original ±0.25% tolerance specification.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Package	Status	Inventory (Pcs)
RG1005P-2940-C-T10	Susumu	294 Ω	±0.25%	0.063	±25	0402	Obsolete	1089
RT0402CRD07294RL	YAGEO	294 Ω	±0.25%	0.063	±25	0402	Active	1139
RG1005P-2940-B-T5	Susumu	294 Ω	±0.1%	0.063	±25	0402	Active	904
RG1005P-2940-W-T5	Susumu	294 Ω	±0.05%	0.063	±25	0402	Active	1015
RG1005N-2940-B-T5	Susumu	294 Ω	±0.1%	0.063	±10	0402	Active	952
RG1005N-2940-W-T1	Susumu	294 Ω	±0.05%	0.063	±10	0402	Active	685
RG1005V-2940-B-T5	Susumu	294 Ω	±0.1%	0.063	±5	0402	Active	1023
RG1005V-2940-P-T1	Susumu	294 Ω	±0.02%	0.063	±5	0402	Active	908
RG1005V-2940-W-T1	Susumu	294 Ω	±0.05%	0.063	±5	0402	Active	856
CPF0402B294RE1	TE Connectivity	294 Ω	±0.1%	0.063	±25	0402	Active	2065
ERA-2AEB2940X	Panasonic	294 Ω	±0.1%	0.063	±25	0402	Active	67326

Engineering Selection Recommendations

Direct Equivalent (Same Tolerance):

The RT0402CRD07294RL from YAGEO provides direct electrical equivalence to the RG1005P-2940-C-T10, maintaining ±0.25% tolerance and ±25ppm/°C temperature coefficient. This part is active in production and suitable for direct substitution in applications where the original tolerance specification is required.

Upgraded Tolerance Options (Susumu RG Series):

The RG1005P-2940-B-T5 and RG1005P-2940-W-T5 offer tighter tolerance specifications (±0.1% and ±0.05% respectively) while maintaining the ±25ppm/°C temperature coefficient of the original part. These are appropriate for designs requiring improved accuracy without thermal performance changes.

The RG1005N series (RG1005N-2940-B-T5, RG1005N-2940-W-T1) and RG1005V series (RG1005V-2940-B-T5, RG1005V-2940-P-T1, RG1005V-2940-W-T1) provide progressively lower temperature coefficients (±10ppm/°C and ±5ppm/°C respectively) with improved tolerance specifications. These are suitable for applications with stringent thermal stability requirements.

Alternative Manufacturer Options:

The CPF0402B294RE1 from TE Connectivity and ERA-2AEB2940X from Panasonic both provide ±0.1% tolerance with ±25ppm/°C temperature coefficient. The ERA-2AEB2940X maintains AEC-Q200 automotive qualification and offers the highest inventory availability (67,326 pieces), making it suitable for high-volume production requirements.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and 0402 package compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can the RG1005P-2940-C-T10 be replaced with a part having tighter tolerance?

A: Yes. Parts with tolerance specifications tighter than ±0.25% (such as ±0.1%, ±0.05%, or ±0.02%) are functionally compatible substitutes. Tighter tolerance specifications represent improved accuracy and do not create incompatibility with designs specified for ±0.25% tolerance.

Q: What is the significance of the temperature coefficient difference between substitute parts?

A: Temperature coefficient (ppm/°C) defines the resistance change per degree Celsius. The original part specifies ±25ppm/°C. Substitutes with lower temperature coefficients (±10ppm/°C or ±5ppm/°C) provide better resistance stability across the operating temperature range. This is an improvement and does not create incompatibility.

Q: Are all substitute parts automotive-qualified?

A: The Susumu RG series substitutes and Panasonic ERA-2AEB2940X maintain AEC-Q200 automotive qualification. The YAGEO RT0402CRD07294RL and TE Connectivity CPF0402B294RE1 do not carry AEC-Q200 designation. For automotive applications requiring AEC-Q200 compliance, select from Susumu or Panasonic alternatives.

Q: Does package height variation affect PCB assembly compatibility?

A: The original part specifies maximum seated height of 0.016" (0.40mm). The YAGEO RT0402CRD07294RL and TE Connectivity CPF0402B294RE1 specify 0.014" (0.35mm) maximum height. Both dimensions are within standard 0402 package specifications and compatible with existing PCB designs and assembly processes.

Q: What is the difference between Susumu RG series variants (P, N, V)?

A: The letter designation indicates temperature coefficient performance: RG1005P series specifies ±25ppm/°C, RG1005N series specifies ±10ppm/°C, and RG1005V series specifies ±5ppm/°C. All maintain the same 294 Ohm resistance and 0402 package. Selection depends on thermal stability requirements of the application.

Q: Is the obsolete status of RG1005P-2940-C-T10 critical for new designs?

A: Yes. For new designs, select from active production parts. The RT0402CRD07294RL, Susumu RG series upgrades, CPF0402B294RE1, and ERA-2AEB2940X are all active in production. For existing inventory management of the obsolete part, these substitutes provide equivalent or improved performance.

Q: Can substitutes be mixed in the same design?

A: Yes, provided the application tolerance and temperature coefficient requirements are met by all selected parts. Mixing parts with different tolerance or temperature coefficient specifications is acceptable if each part individually satisfies the circuit requirements at its specific location.

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