RG2012V-4021-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012V-4021-C-T5 is a 4.02 kOhms ±0.25% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component features anti-sulfur construction and meets AEC-Q200 automotive qualification standards, with operating temperature range of -55°C to 155°C. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and field replacement applications.

Substiute Parts

RG2012V-4021-C-T5

SusumuIn Stock: 942RG2012V-4021-C-T5 Datasheet

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RG2012V-4021-B-T5

SusumuIn Stock: 987RG2012V-4021-B-T5 Datasheet

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RG2012V-4021-P-T1

SusumuIn Stock: 918RG2012V-4021-P-T1 Datasheet

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RG2012V-4021-W-T1

SusumuIn Stock: 862RG2012V-4021-W-T1 Datasheet

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RG2012V-4021-W-T5

SusumuIn Stock: 894RG2012V-4021-W-T5 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RG2012V-4021-C-T5 is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Resistance value: 4.02 kOhms (exact match required)
• Package type: 0805 (2012 Metric) (physical and electrical compatibility)
• Power rating: 0.125W (1/8W) (thermal design compatibility)
• Composition: Thin Film (electrical performance characteristics)
• Features: Anti-Sulfur, Automotive AEC-Q200 (environmental and reliability standards)
• Temperature coefficient: ±5ppm/°C (temperature stability)
• Operating temperature range: -55°C to 155°C (environmental specification)
• RoHS and REACH compliance status (regulatory requirement)

Tolerance Variation: Substitute parts may feature improved (tighter) tolerance specifications (±0.1%, ±0.05%, ±0.02%) while maintaining full backward compatibility. Tighter tolerance specifications represent functional upgrades suitable for applications requiring enhanced precision.

All identified substitutes maintain identical physical dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm) and maximum seated height (0.020" / 0.50mm), ensuring direct PCB compatibility without layout modifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute - RG2012V-4021-B-T5: This part provides direct functional substitution with improved tolerance specification (±0.1% versus ±0.25%). Active product status ensures long-term availability and supply chain continuity. Identical electrical and mechanical specifications guarantee drop-in compatibility. Recommended for applications where the original tolerance specification is acceptable and enhanced precision is beneficial.

Secondary Substitutes - RG2012V-4021-W-T5 and RG2012V-4021-W-T1: Both variants offer ±0.05% tolerance specification, representing significant precision improvement over the original part. Active product status and full AEC-Q200 compliance maintain automotive qualification requirements. The distinction between these parts relates to packaging configuration (T5 versus T1 tape specifications). Selection between these variants depends on procurement and assembly line tape format requirements.

Premium Substitute - RG2012V-4021-P-T1: This part delivers the highest precision specification (±0.02% tolerance) within the equivalent family. Active product status and complete compliance certification ensure production viability. Suitable for applications requiring maximum resistance accuracy and long-term supply assurance. The T1 tape format specification should be verified against assembly equipment compatibility.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and identical thermal and environmental operating parameters, ensuring regulatory and operational compatibility with the original RG2012V-4021-C-T5 specification.

Frequently Asked Questions (FAQ)

Q: Can RG2012V-4021-B-T5 be used as a direct replacement for RG2012V-4021-C-T5?

A: Yes. The RG2012V-4021-B-T5 maintains identical resistance value (4.02 kOhms), power rating (0.125W), package type (0805), composition (thin film), and all environmental specifications. The improved tolerance (±0.1% versus ±0.25%) represents a functional upgrade with no compatibility issues. Physical dimensions and PCB footprint are identical.

Q: What is the difference between RG2012V-4021-W-T5 and RG2012V-4021-W-T1?

A: Both parts are electrically and mechanically identical with ±0.05% tolerance specification. The difference is in tape format designation (T5 versus T1), which relates to the packaging configuration used during manufacturing and assembly. Selection depends on compatibility with your procurement and pick-and-place equipment tape specifications.

Q: Why is the original RG2012V-4021-C-T5 marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production. The substitute parts listed are active alternatives that provide equivalent or superior electrical performance while ensuring ongoing availability for new production and field replacement applications.

Q: Are all substitute parts AEC-Q200 qualified?

A: Yes. All substitute parts in this family maintain AEC-Q200 automotive qualification, anti-sulfur construction, and identical operating temperature range (-55°C to 155°C), ensuring compliance with automotive reliability and environmental standards.

Q: Can I use RG2012V-4021-P-T1 in place of RG2012V-4021-C-T5 without circuit redesign?

A: Yes. The RG2012V-4021-P-T1 is a direct physical and electrical substitute with superior tolerance specification (±0.02%). No circuit redesign is required. The tighter tolerance may improve circuit performance in precision-sensitive applications without introducing any compatibility issues.

Q: What is the significance of the tolerance specifications (±0.25%, ±0.1%, ±0.05%, ±0.02%)?

A: Tolerance specification defines the maximum allowable deviation from the nominal 4.02 kOhms resistance value. Tighter tolerance (lower percentage) indicates higher precision. All substitute parts with improved tolerance specifications are fully backward compatible and suitable for applications originally designed for ±0.25% tolerance.

Q: Are there any moisture sensitivity concerns with these parts?

A: No. All parts in this family, including the original and all substitutes, carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related handling restrictions during storage, transport, or assembly.

Q: Do all substitute parts have identical physical dimensions?

A: Yes. All parts maintain 0805 (2012 Metric) package specification with dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm) and maximum seated height of 0.020" (0.50mm). PCB footprint and assembly compatibility are identical across all variants.