RG2012N-54R9-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012N-54R9-C-T5 is a 54.9 Ohm ±0.25% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component is designed for automotive applications with AEC-Q200 qualification and anti-sulfur construction. The part is currently listed as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility while meeting automotive reliability standards.

Substiute Parts

RG2012N-54R9-C-T5

SusumuIn Stock: 941RG2012N-54R9-C-T5 Datasheet

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RG2012N-54R9-B-T5

SusumuIn Stock: 957RG2012N-54R9-B-T5 Datasheet

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RG2012N-54R9-W-T1

SusumuIn Stock: 1082RG2012N-54R9-W-T1 Datasheet

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RG2012N-54R9-W-T5

SusumuIn Stock: 896RG2012N-54R9-W-T5 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RG2012N-54R9-C-T5 is determined by the following critical parameters that must remain constant across all alternatives:

Fixed Parameters (Non-Negotiable):

• Resistance value: 54.9 Ohms
• Package type: 0805 (2012 Metric)
• Power rating: 0.125W (1/8W)
• Composition: Thin Film
• Temperature coefficient: ±10ppm/°C
• Operating temperature range: -55°C to 155°C
• Automotive qualification: AEC-Q200
• Anti-sulfur construction
• RoHS3 compliance

Variable Parameters (Substitution Basis):

• Tolerance: The main part specifies ±0.25%. Substitute parts with tighter tolerances (±0.1% or ±0.05%) are electrically compatible and represent performance upgrades.
• Product status: The main part is obsolete. Active substitute parts ensure continued supply chain availability.
• Packaging format: The main part uses bulk packaging. Substitute parts in Tape & Reel (TR) format are mechanically compatible and represent standard manufacturing packaging.

All three substitute parts maintain identical electrical performance characteristics while offering improved tolerance specifications and active product status.

Parameter Comparison

Engineering Selection Recommendations

RG2012N-54R9-B-T5 (±0.1% Tolerance)

This substitute provides a tolerance improvement from ±0.25% to ±0.1% while maintaining all other electrical and mechanical specifications. The part is active in production status, ensuring supply chain continuity. Selection of this part is appropriate for applications where the tighter tolerance specification provides measurable performance benefit without requiring the highest precision grade.

RG2012N-54R9-W-T1 (±0.05% Tolerance, Tape & Reel)

This substitute offers the highest tolerance specification at ±0.05%, representing a five-fold improvement over the main part. The part is active and supplied in standard Tape & Reel packaging. Selection is appropriate for precision-critical applications where the enhanced tolerance specification is required and automated assembly processes are utilized.

RG2012N-54R9-W-T5 (±0.05% Tolerance, Tape & Reel)

This substitute is functionally equivalent to the RG2012N-54R9-W-T1, offering identical ±0.05% tolerance and active product status. The part differs only in tape reel configuration (T5 versus T1 designation). Selection between this part and the W-T1 variant is determined by specific tape reel format requirements of the assembly process.

All three substitutes maintain AEC-Q200 automotive qualification, anti-sulfur construction, and RoHS3 compliance, ensuring compatibility with automotive reliability and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can RG2012N-54R9-B-T5, RG2012N-54R9-W-T1, or RG2012N-54R9-W-T5 be used as direct replacements for RG2012N-54R9-C-T5?

A: Yes. All three substitute parts are direct replacements. They maintain identical resistance value (54.9 Ohms), power rating (0.125W), package type (0805), temperature coefficient (±10ppm/°C), operating temperature range (-55°C to 155°C), and automotive qualification (AEC-Q200). The substitute parts feature tighter tolerance specifications and active product status.

Q: What is the difference between the tolerance specifications?

A: The main part RG2012N-54R9-C-T5 specifies ±0.25% tolerance. The RG2012N-54R9-B-T5 substitute specifies ±0.1% tolerance. The RG2012N-54R9-W-T1 and RG2012N-54R9-W-T5 substitutes specify ±0.05% tolerance. Tighter tolerance indicates closer adherence to the nominal 54.9 Ohm value. Selection depends on circuit requirements for resistance accuracy.

Q: What does "Tape & Reel (TR)" packaging mean?

A: Tape & Reel packaging is the standard format for automated surface mount assembly. Components are wound on continuous tape with a carrier reel, enabling high-speed pick-and-place machine processing. The main part uses bulk packaging, while all substitutes use Tape & Reel format, which is compatible with modern manufacturing processes.

Q: Are there differences between RG2012N-54R9-W-T1 and RG2012N-54R9-W-T5?

A: Both parts are electrically and mechanically identical with ±0.05% tolerance. The T1 and T5 designations refer to different tape reel configurations. Selection between these variants is determined by the specific tape format compatibility of the assembly equipment.

Q: Why is the main part RG2012N-54R9-C-T5 listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The substitute parts listed are active alternatives that provide equivalent or improved performance specifications while ensuring continued availability from current manufacturing inventory.

Q: Do all parts meet automotive standards?

A: Yes. The main part and all three substitutes carry AEC-Q200 automotive qualification, anti-sulfur construction, and RoHS3 compliance. All parts are suitable for automotive applications requiring these certifications.

Q: Can I use a substitute part with tighter tolerance in a circuit designed for ±0.25% tolerance?

A: Yes. A component with tighter tolerance (±0.1% or ±0.05%) will perform within the circuit requirements specified for ±0.25% tolerance. The substitute part will exhibit better accuracy than the original specification, which is compatible with the circuit design.