RG2012P-54R9-B-T5 Equivalent & Substitute Parts

Part Overview

The RG2012P-54R9-B-T5 is a 54.9 Ohm ±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 available in high volume inventory. Equivalent and substitute parts are identified to support procurement flexibility, design redundancy, and supply chain continuity.

Substiute Parts

RG2012P-54R9-B-T5

SusumuIn Stock: 1194RG2012P-54R9-B-T5 Datasheet

Current PartRFQ

9-1625868-8

TE Connectivity Passive ProductIn Stock: 12259-1625868-8 Datasheet

DirectRFQ

ERA-6AEB54R9V

Panasonic Electronic ComponentsIn Stock: 13881ERA-6AEB54R9V Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RG2012P-54R9-B-T5 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 54.9 Ohms
• Tolerance: ±0.1%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±25ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Number of Terminations: 2

Allowable Variation Parameters:

• Power Rating: Equal or greater than 0.125W
• Height - Seated: Variation permitted within mechanical constraints
• Automotive Rating: AEC-Q200 preferred but not mandatory for all applications
• RoHS Compliance: ROHS3 preferred but not mandatory for all applications

Substitute parts are grouped into two categories based on power rating compatibility and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Equivalent: ERA-6AEB54R9V (Panasonic Electronic Components)

The ERA-6AEB54R9V is the direct functional equivalent to the RG2012P-54R9-B-T5. Both components share identical electrical specifications (54.9 Ohms, ±0.1% tolerance, 0.125W power rating, ±25ppm/°C temperature coefficient) and mechanical package (0805). Both are AEC-Q200 qualified for automotive applications and ROHS3 compliant. The ERA-6AEB54R9V is suitable for direct substitution in applications requiring automotive-grade reliability and regulatory compliance.

Secondary Substitute: 9-1625868-8 (TE Connectivity Passive Product)

The 9-1625868-8 provides electrical equivalence with a higher power rating (0.25W versus 0.125W). This component is suitable for applications where increased power dissipation capability is beneficial or required. However, this part is RoHS non-compliant and lacks AEC-Q200 automotive qualification. The 9-1625868-8 is applicable only in non-automotive applications or where RoHS compliance is not mandated. The increased height (0.026" versus 0.020") must be verified against PCB layout constraints.

Compliance Considerations:

Applications requiring ROHS3 compliance and AEC-Q200 automotive qualification should utilize either the RG2012P-54R9-B-T5 or ERA-6AEB54R9V. The 9-1625868-8 is restricted to applications where these certifications are not required.

Frequently Asked Questions (FAQ)

Q: Can the 9-1625868-8 be used as a direct replacement for the RG2012P-54R9-B-T5?

A: The 9-1625868-8 provides electrical equivalence in resistance, tolerance, and temperature coefficient. However, it is RoHS non-compliant and lacks AEC-Q200 automotive qualification. Substitution is permissible only in applications where these certifications are not required. The increased power rating (0.25W) and height (0.026") must be verified against design specifications.

Q: What is the difference between the RG2012P-54R9-B-T5 and ERA-6AEB54R9V?

A: Both components are electrically and mechanically equivalent with identical resistance (54.9 Ohms), tolerance (±0.1%), power rating (0.125W), package (0805), and temperature coefficient (±25ppm/°C). Both are AEC-Q200 qualified and ROHS3 compliant. The primary difference is manufacturer: Susumu versus Panasonic. The ERA-6AEB54R9V has a slightly greater seated height (0.024" versus 0.020"), which must be confirmed against PCB clearance requirements.

Q: Are all substitute parts suitable for automotive applications?

A: The RG2012P-54R9-B-T5 and ERA-6AEB54R9V are both AEC-Q200 qualified for automotive use. The 9-1625868-8 is not AEC-Q200 qualified and is not suitable for automotive applications requiring this certification.

Q: What is the impact of the different power ratings?

A: The RG2012P-54R9-B-T5 and ERA-6AEB54R9V are rated for 0.125W (1/8W), while the 9-1625868-8 is rated for 0.25W (1/4W). The higher power rating of the 9-1625868-8 provides greater thermal margin but does not affect electrical performance at equivalent power levels. Selection should be based on actual circuit power dissipation requirements.

Q: Are there any height restrictions when substituting these parts?

A: The RG2012P-54R9-B-T5 has a maximum seated height of 0.020" (0.50mm). The ERA-6AEB54R9V is 0.024" (0.60mm), and the 9-1625868-8 is 0.026" (0.65mm). PCB layout and component clearance specifications must be verified to confirm compatibility with taller substitute parts.

Q: What is the moisture sensitivity level for these components?

A: All three components are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Are these parts RoHS compliant?

A: The RG2012P-54R9-B-T5 and ERA-6AEB54R9V are ROHS3 compliant. The 9-1625868-8 is RoHS non-compliant and must not be used in applications requiring RoHS compliance.