RG2012P-433-D-T5 Equivalent & Substitute Parts

Part Overview

The RG2012P-433-D-T5 is a 43 kOhms ±0.5% thin film chip resistor manufactured by Susumu in 0805 (2012 Metric) package format. This component is rated for 0.125W (1/8W) power dissipation and is designed for automotive applications with AEC-Q200 qualification. The part features anti-sulfur construction and operates across the temperature range of -55°C to 155°C. Currently in active production status with 1162 pieces in stock, this resistor is suitable for precision analog circuits, sensor interfaces, and automotive control systems where moderate tolerance and reliability are required. Equivalent and substitute parts are identified for applications requiring improved tolerance specifications, alternative sourcing, or inventory optimization.

Key Parameters

Parameter	Value	Significance for Substitution
Resistance Value	43 kOhms	Must match exactly for direct substitution
Tolerance	±0.5%	Determines acceptable tolerance range; tighter tolerances are compatible
Power Rating	0.125W (1/8W)	Must match or exceed; lower ratings are not acceptable
Package / Case	0805 (2012 Metric)	Must match for PCB footprint compatibility
Composition	Thin Film	Determines temperature coefficient and stability characteristics
Operating Temperature Range	-55°C to 155°C	Must meet or exceed application requirements
Automotive Rating	AEC-Q200	Required for automotive applications; ensures reliability standards
RoHS Compliance	ROHS3 Compliant	Environmental and regulatory requirement

Substitute Part Grouping Explanation

Substitute parts for the RG2012P-433-D-T5 are qualified based on the following substitution criteria:

Mandatory Matching Parameters:

Resistance value: 43 kOhms (exact match required)
Package / Case: 0805 (2012 Metric) (exact match required)
Power rating: 0.125W minimum (equal or higher acceptable)
Composition: Thin Film (maintains electrical characteristics)
Operating temperature range: -55°C to 155°C minimum (equal or wider acceptable)

Compatible Tolerance Specifications: Substitute parts with tolerance values equal to or tighter than ±0.5% are directly compatible. Tighter tolerances (±0.1%, ±0.05%) represent performance upgrades and are functionally interchangeable without circuit redesign.

Automotive and Compliance Requirements: All substitute parts maintain AEC-Q200 automotive qualification and ROHS3 compliance, ensuring regulatory and reliability standards are preserved across substitution.

Temperature Coefficient Variations: Temperature coefficient values (±25ppm/°C, ±15ppm/°C, ±10ppm/°C) vary among substitutes but remain within acceptable ranges for thin film resistor technology. Tighter coefficients indicate improved stability over temperature.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Package	Height Max (mm)	AEC-Q200	Inventory (Pcs)
RG2012P-433-D-T5	Susumu	43 kΩ	±0.5%	0.125	±25	-55 to 155	0805	0.50	Yes	1162
RG2012P-433-B-T5	Susumu	43 kΩ	±0.1%	0.125	±25	-55 to 155	0805	0.50	Yes	13190
ERA-6AEB433V	Panasonic	43 kΩ	±0.1%	0.125	±25	-55 to 155	0805	0.60	Yes	22080
ERA-6APB433V	Panasonic	43 kΩ	±0.1%	0.125	±15	-55 to 155	0805	0.60	Yes	4336
ERA-6ARB433V	Panasonic	43 kΩ	±0.1%	0.125	±10	-55 to 155	0805	0.60	Yes	3234
ERA-6ARW433V	Panasonic	43 kΩ	±0.05%	0.125	±10	-55 to 155	0805	0.60	Yes	2763
RT0805BRD0743KL	YAGEO	43 kΩ	±0.1%	0.125	±25	-55 to 155	0805	0.60	No	2908

Engineering Selection Recommendations

Primary Substitute (Same Tolerance, Same Manufacturer): RG2012P-433-B-T5 is the direct upgrade from Susumu with improved ±0.1% tolerance while maintaining identical electrical characteristics and the same 0.50mm maximum height. This part offers the highest inventory availability (13190 pieces) and maintains full compatibility with the original design.

Automotive-Qualified Panasonic Alternatives: ERA-6AEB433V, ERA-6APB433V, ERA-6ARB433V, and ERA-6ARW433V are all Panasonic alternatives with AEC-Q200 qualification. These parts feature tighter tolerances (±0.1% to ±0.05%) and improved temperature coefficients (±25ppm/°C to ±10ppm/°C). The maximum seated height increases to 0.60mm; verify PCB clearance before substitution. ERA-6AEB433V provides the largest inventory (22080 pieces) among Panasonic options.

Non-Automotive Qualified Alternative: RT0805BRD0743KL from YAGEO meets all electrical and package specifications with ±0.1% tolerance but does not carry AEC-Q200 automotive qualification. This part is suitable only for non-automotive applications or where automotive qualification is not required.

Selection Criteria:

For automotive applications requiring AEC-Q200 compliance, select only from Susumu RG series or Panasonic ERA-6A series parts.
For applications with height constraints below 0.55mm, RG2012P-433-B-T5 is the only suitable option.
For applications requiring superior tolerance and temperature stability, ERA-6ARW433V (±0.05%, ±10ppm/°C) provides the highest performance specification.
Inventory availability should be considered for supply chain continuity; ERA-6AEB433V offers the largest stock position.

Frequently Asked Questions (FAQ)

Q: Can I substitute RG2012P-433-D-T5 with a part having tighter tolerance?

A: Yes. Parts with tolerance specifications of ±0.1% or ±0.05% are directly compatible with circuits designed for ±0.5% tolerance. Tighter tolerances represent performance improvements and do not require circuit redesign.

Q: What is the significance of the 0.50mm versus 0.60mm height difference?

A: The RG2012P-433-D-T5 has a maximum seated height of 0.50mm, while Panasonic ERA-6A series parts have 0.60mm maximum height. Verify PCB clearance and component placement constraints before substituting. If height is critical, use RG2012P-433-B-T5 (0.50mm) or RG2012P-433-D-T5 (original part).

Q: Are all substitute parts AEC-Q200 qualified?

A: No. RT0805BRD0743KL from YAGEO does not carry AEC-Q200 qualification. For automotive applications, use only Susumu RG2012P series or Panasonic ERA-6A series parts. RT0805BRD0743KL is suitable for non-automotive applications only.

Q: What is the difference between temperature coefficient values?

A: Temperature coefficient indicates how much the resistance value changes per degree Celsius. Lower values (±10ppm/°C) indicate better stability across temperature extremes. RG2012P-433-D-T5 has ±25ppm/°C; ERA-6ARB433V and ERA-6ARW433V have ±10ppm/°C, providing superior temperature stability.

Q: Can I use ERA-6ARW433V (±0.05% tolerance) as a direct replacement?

A: Yes. ERA-6ARW433V is fully compatible with RG2012P-433-D-T5. The tighter ±0.05% tolerance and improved ±10ppm/°C temperature coefficient represent performance enhancements. Verify the 0.60mm maximum height is acceptable for your PCB layout.

Q: Which substitute offers the best inventory availability?

A: ERA-6AEB433V from Panasonic has the highest inventory with 22080 pieces in stock. This part provides ±0.1% tolerance, AEC-Q200 qualification, and immediate availability for high-volume requirements.

Q: Is RoHS3 compliance maintained across all substitutes?

A: Yes. All substitute parts listed are ROHS3 compliant, maintaining environmental and regulatory requirements equivalent to the original RG2012P-433-D-T5.

Q: Can I substitute RG2012P-433-D-T5 with a lower tolerance part like ±1%?

A: No. Substitute parts must have tolerance equal to or tighter than ±0.5%. Parts with looser tolerances (±1% or higher) are not acceptable substitutes and may cause circuit performance degradation.

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