RG2012N-124-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012N-124-C-T5 is a 120 kOhms ±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 classified as obsolete, necessitating identification of equivalent active alternatives that maintain electrical and mechanical compatibility while meeting automotive reliability standards.

Substiute Parts

RG2012N-124-C-T5

SusumuIn Stock: 876RG2012N-124-C-T5 Datasheet

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RG2012N-124-B-T5

SusumuIn Stock: 705RG2012N-124-B-T5 Datasheet

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RG2012N-124-W-T1

SusumuIn Stock: 4554RG2012N-124-W-T1 Datasheet

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RG2012N-124-W-T5

SusumuIn Stock: 1086RG2012N-124-W-T5 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RG2012N-124-C-T5 is determined by the following critical parameters that must remain constant across all alternatives:

Fixed Parameters (Non-Negotiable):

• Resistance value: 120 kOhms
• 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 (Allowed to Differ):

• Tolerance: The original part specifies ±0.25%. Substitute parts with tighter tolerances (±0.1% or ±0.05%) are electrically compatible and represent performance upgrades.
• Product status: Active alternatives are preferred over the obsolete original part.
• Packaging format: Tape & Reel (TR) packaging is compatible with the original component for manufacturing purposes.

All substitute parts listed maintain identical mechanical dimensions, thermal characteristics, and automotive compliance ratings, ensuring direct functional replacement in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: RG2012N-124-W-T1

The RG2012N-124-W-T1 is the preferred substitute for the obsolete RG2012N-124-C-T5. This part maintains all critical electrical and mechanical specifications while offering superior tolerance performance at ±0.05%. The component is in active production status, ensuring long-term availability and supply chain continuity. Tape & Reel packaging is standard for automated assembly processes. AEC-Q200 automotive qualification and ROHS3 compliance are maintained.

Secondary Recommendation: RG2012N-124-W-T5

The RG2012N-124-W-T5 provides an alternative with identical electrical specifications to the primary recommendation. This part also features ±0.05% tolerance and active product status. Selection between RG2012N-124-W-T1 and RG2012N-124-W-T5 may be determined by packaging reel specifications or supplier availability, as both components are electrically and mechanically equivalent.

Tertiary Recommendation: RG2012N-124-B-T5

The RG2012N-124-B-T5 represents a mid-range tolerance option at ±0.1%, providing improved accuracy over the original ±0.25% specification while maintaining active product status. This part is suitable for applications where the original tolerance was acceptable but component availability is prioritized.

All three substitute parts satisfy automotive reliability requirements, environmental compliance standards, and thermal performance specifications of the original component.

Frequently Asked Questions (FAQ)

Q: Can RG2012N-124-W-T1 be used as a direct replacement for RG2012N-124-C-T5?

A: Yes. Both components share identical resistance value (120 kOhms), power rating (0.125W), package type (0805), temperature coefficient (±10ppm/°C), operating temperature range (-55°C to 155°C), and AEC-Q200 automotive qualification. The substitute features tighter tolerance (±0.05% versus ±0.25%), which is a performance upgrade. Mechanical dimensions and thermal characteristics are identical.

Q: What is the difference between the tolerance specifications?

A: The original RG2012N-124-C-T5 specifies ±0.25% tolerance, meaning the actual resistance value can deviate up to 0.25% from the nominal 120 kOhms specification. Substitute parts RG2012N-124-W-T1 and RG2012N-124-W-T5 specify ±0.05% tolerance, providing four times greater accuracy. The RG2012N-124-B-T5 specifies ±0.1% tolerance, providing 2.5 times greater accuracy. All tolerances are within acceptable ranges for direct substitution.

Q: Are there packaging differences between the original and substitute parts?

A: The original RG2012N-124-C-T5 is supplied in bulk packaging. All substitute parts are supplied in Tape & Reel (TR) format, which is standard for automated surface mount assembly. The physical component dimensions and electrical characteristics remain unchanged. Tape & Reel packaging is compatible with standard pick-and-place equipment.

Q: Why is the original part classified as obsolete?

A: The RG2012N-124-C-T5 is no longer in active production. The substitute parts listed represent current production alternatives from the same manufacturer (Susumu) that maintain all critical electrical and mechanical specifications. Active product status ensures continued availability and supply chain support.

Q: Do all substitute parts maintain AEC-Q200 automotive qualification?

A: Yes. All substitute parts listed (RG2012N-124-B-T5, RG2012N-124-W-T1, and RG2012N-124-W-T5) carry AEC-Q200 automotive qualification identical to the original component. Anti-sulfur construction and ROHS3 compliance are maintained across all alternatives.

Q: Which substitute part should be selected for new designs?

A: For new designs, RG2012N-124-W-T1 is recommended as the primary choice due to active product status, superior tolerance specification (±0.05%), and highest inventory availability (4449 pieces). This part provides the best combination of performance, availability, and long-term supply assurance.

Q: Are the substitute parts interchangeable in existing circuit boards?

A: Yes. All substitute parts are mechanically and electrically interchangeable with the original RG2012N-124-C-T5. Identical package type (0805), footprint dimensions (2.00mm x 1.25mm), and electrical characteristics ensure direct replacement without circuit board redesign or layout modifications.