RG2012P-4122-B-T5 Equivalent & Substitute Parts

Part Overview

The RG2012P-4122-B-T5 is a 41.2 kOhms ±0.1% thin film chip resistor manufactured by Susumu in 0805 (2012 Metric) package format. This surface-mount device is rated for 0.125W (1/8W) power dissipation and features anti-sulfur coating with automotive AEC-Q200 qualification. The component is actively produced and maintains ROHS3 compliance with unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity. Alternative components must satisfy the same electrical specifications, mechanical compatibility, and regulatory requirements as the primary part.

Substiute Parts

RG2012P-4122-B-T5

SusumuIn Stock: 856RG2012P-4122-B-T5 Datasheet

Current PartRFQ

5-2176093-9

TE Connectivity Passive ProductIn Stock: 53255-2176093-9 Datasheet

DirectRFQ

ERA-6AEB4122V

Panasonic Electronic ComponentsIn Stock: 13892ERA-6AEB4122V Datasheet

DirectRFQ

RT0805BRD0741K2L

YAGEOIn Stock: 8206RT0805BRD0741K2L Datasheet

DirectRFQ

TNPW080541K2BEEN

Vishay DaleIn Stock: 3748TNPW080541K2BEEN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Mandatory Matching Parameters:

• Resistance value: 41.2 kOhms
• Tolerance: ±0.1%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±25ppm/°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Power Rating: Equal to or greater than 0.125W
• Operating Temperature Range: Equal to or greater than -55°C ~ 155°C
• Automotive Rating: AEC-Q200 certification optional but preferred
• Physical dimensions: Minor height variations acceptable within package specification

All substitute parts listed maintain identical electrical characteristics and package compatibility. Variations in power rating and maximum operating temperature represent enhanced or equivalent performance margins.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Identical Specifications):

ERA-6AEB4122V (Panasonic Electronic Components) and RT0805BRD0741K2L (YAGEO) are direct functional equivalents to the RG2012P-4122-B-T5. Both maintain identical resistance, tolerance, power rating, and operating temperature range. ERA-6AEB4122V carries AEC-Q200 automotive qualification matching the primary part. Both components are actively produced with ROHS3 compliance and MSL 1 rating.

Enhanced Performance Substitutes:

TNPW080541K2BEEN (Vishay Dale) provides increased power dissipation capability (0.26W versus 0.125W) and extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C). This component includes anti-sulfur coating and AEC-Q200 automotive qualification, matching the primary part's environmental specifications. Height dimension is 0.022" (0.55mm), within acceptable package tolerance.

5-2176093-9 (TE Connectivity Passive Product) offers increased power rating (0.25W versus 0.125W) while maintaining all electrical specifications. Operating temperature range matches the primary part at -55°C ~ 155°C. This component does not carry AEC-Q200 automotive rating.

Automotive Application Considerations:

For applications requiring automotive qualification, ERA-6AEB4122V, TNPW080541K2BEEN, and the primary RG2012P-4122-B-T5 all carry AEC-Q200 certification. RT0805BRD0741K2L and 5-2176093-9 lack this certification and are suitable for non-automotive applications.

Anti-Sulfur Feature Considerations:

RG2012P-4122-B-T5 and TNPW080541K2BEEN both include anti-sulfur coating. This feature is not specified for ERA-6AEB4122V, RT0805BRD0741K2L, or 5-2176093-9.

Frequently Asked Questions (FAQ)

Q: Can TNPW080541K2BEEN replace RG2012P-4122-B-T5 in all applications?

A: TNPW080541K2BEEN is electrically and mechanically compatible with RG2012P-4122-B-T5. The higher power rating (0.26W) and extended temperature range (-55°C ~ 175°C) provide equivalent or superior performance. Both components carry AEC-Q200 automotive qualification and anti-sulfur coating. Physical height difference (0.022" versus 0.020") is within 0805 package tolerance.

Q: What is the difference between the substitute parts in terms of power rating?

A: RG2012P-4122-B-T5, ERA-6AEB4122V, and RT0805BRD0741K2L are rated at 0.125W (1/8W). TNPW080541K2BEEN is rated at 0.26W, and 5-2176093-9 is rated at 0.25W (1/4W). Higher power ratings indicate greater thermal dissipation capability. Selection depends on circuit power requirements; lower-rated components are suitable for applications within their power envelope.

Q: Are all substitute parts suitable for automotive applications?

A: RG2012P-4122-B-T5, ERA-6AEB4122V, and TNPW080541K2BEEN carry AEC-Q200 automotive qualification. RT0805BRD0741K2L and 5-2176093-9 do not carry this certification. For automotive applications, select from the AEC-Q200 qualified components.

Q: What is the significance of the anti-sulfur feature?

A: Anti-sulfur coating protects the resistor from sulfur-containing environmental contaminants that can degrade performance. RG2012P-4122-B-T5 and TNPW080541K2BEEN include this feature. Other substitutes do not specify anti-sulfur coating. Selection depends on environmental exposure requirements.

Q: Are there physical compatibility concerns with substitute parts?

A: All substitute parts use the 0805 (2012 Metric) package with identical length (0.079") and width (0.049"). Height variations range from 0.020" to 0.026" (0.50mm to 0.65mm), all within 0805 package specification. Physical compatibility is confirmed for PCB assembly and soldering processes.

Q: What is the moisture sensitivity level, and why is it important?

A: All listed components carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. These components do not require special moisture control during storage, handling, or assembly. This specification is identical across all substitute parts.

Q: Can RT0805BRD0741K2L be used in place of RG2012P-4122-B-T5 for non-automotive applications?

A: RT0805BRD0741K2L is electrically and mechanically compatible with RG2012P-4122-B-T5 for non-automotive applications. Resistance, tolerance, power rating, temperature coefficient, and operating temperature range are identical. The absence of AEC-Q200 automotive qualification is the only functional difference. For applications not requiring automotive certification, this component is suitable.

Q: What is the temperature coefficient, and how does it affect component selection?

A: All listed components maintain ±25ppm/°C temperature coefficient, indicating identical resistance stability across temperature variations. This specification is consistent across all substitute parts and does not differentiate selection criteria.

Q: Is inventory availability a factor in component selection?

A: Inventory levels are provided for reference: RG2012P-4122-B-T5 (796 Pcs), ERA-6AEB4122V (13,865 Pcs), RT0805BRD0741K2L (8,137 Pcs), TNPW080541K2BEEN (3,724 Pcs), and 5-2176093-9 (5,220 Pcs). Availability should be evaluated based on procurement lead times and supply chain requirements.