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RG2012P-8660-W-T1 Equivalent & Substitute Parts
Part Overview
The RG2012P-8660-W-T1 is a 866 Ohms ±0.05% 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 automotive AEC-Q200 qualification standards, suitable for high-reliability applications requiring precision resistance values and temperature stability across -55°C to 155°C operating range.
The RG2012P-8660-W-T1 is classified as obsolete. Equivalent and substitute parts are available from the same manufacturer series with active product status, offering improved specifications or alternative packaging configurations while maintaining core electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 866 Ohms |
| Tolerance | ±0.05% |
| Power Rating | 0.125W (1/8W) |
| Package / Case | 0805 (2012 Metric) |
| Composition | Thin Film |
| Features | Anti-Sulfur, Automotive AEC-Q200 |
| Operating Temperature Range | -55°C ~ 155°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the RG2012P-8660-W-T1 is determined by the following critical parameters:
Mandatory Compatibility Parameters:
- Resistance value: 866 Ohms (exact match required)
- Package / Case: 0805 (2012 Metric) (exact match required)
- Power rating: 0.125W (1/8W) (exact match required)
- Operating temperature range: -55°C ~ 155°C (exact match required)
- Composition: Thin Film (exact match required)
- Features: Anti-Sulfur, Automotive AEC-Q200 (exact match required)
Variable Parameters Allowing Substitution:
- Tolerance: ±0.05% or tighter (±0.02%)
- Temperature coefficient: ±25ppm/°C, ±10ppm/°C, or ±5ppm/°C
- Packaging format: Tape & Reel (TR) or alternative formats
- Product status: Active status preferred over obsolete
All substitute parts listed maintain identical resistance, package, power rating, operating temperature, composition, and automotive qualification. Variations in tolerance and temperature coefficient represent specification improvements or alternative configurations within the same functional category.
Parameter Comparison
| Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Temp Coeff (ppm/°C) | Package | Product Status | Packaging Format | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|
| RG2012P-8660-W-T1 | Susumu | 866 Ω | ±0.05% | 0.125 | ±25 | 0805 | Obsolete | Bulk | 953 |
| RG2012P-8660-W-T5 | Susumu | 866 Ω | ±0.05% | 0.125 | ±25 | 0805 | Active | Tape & Reel | 775 |
| RG2012N-8660-W-T1 | Susumu | 866 Ω | ±0.05% | 0.125 | ±10 | 0805 | Active | Tape & Reel | 764 |
| RG2012V-8660-P-T1 | Susumu | 866 Ω | ±0.02% | 0.125 | ±5 | 0805 | Active | Tape & Reel | 912 |
| RG2012V-8660-W-T1 | Susumu | 866 Ω | ±0.05% | 0.125 | ±5 | 0805 | Active | Tape & Reel | 1118 |
| RG2012V-8660-W-T5 | Susumu | 866 Ω | ±0.05% | 0.125 | ±5 | 0805 | Active | Tape & Reel | 1093 |
Engineering Selection Recommendations
Direct Replacement (Identical Specifications): RG2012P-8660-W-T5 provides direct functional equivalence to RG2012P-8660-W-T1 with identical electrical specifications (866 Ω, ±0.05% tolerance, ±25ppm/°C temperature coefficient). The primary difference is active product status and Tape & Reel packaging format. This part is suitable for applications where the original packaging format is not a constraint.
Upgraded Specifications (Enhanced Performance): RG2012N-8660-W-T1, RG2012V-8660-W-T1, and RG2012V-8660-W-T5 offer improved temperature coefficient performance (±10ppm/°C or ±5ppm/°C) compared to the original ±25ppm/°C specification. These parts maintain identical resistance, tolerance, and power rating while providing superior temperature stability. All three are active products supplied in Tape & Reel format.
Premium Specification (Highest Precision): RG2012V-8660-P-T1 combines the tightest tolerance specification (±0.02% versus ±0.05%) with the lowest temperature coefficient (±5ppm/°C). This part is suitable for applications requiring maximum precision and thermal stability. Active product status and Tape & Reel packaging are standard.
All substitute parts maintain AEC-Q200 automotive qualification, anti-sulfur construction, ROHS3 compliance, and identical operating temperature range (-55°C to 155°C). Selection between alternatives depends on application requirements for tolerance precision, temperature stability, and packaging format compatibility.
Frequently Asked Questions (FAQ)
Q: Can RG2012P-8660-W-T5 be used as a direct replacement for RG2012P-8660-W-T1?
A: Yes. RG2012P-8660-W-T5 is electrically and mechanically identical to RG2012P-8660-W-T1, with matching 866 Ω resistance, ±0.05% tolerance, ±25ppm/°C temperature coefficient, and 0805 package. The primary difference is packaging format (Tape & Reel versus bulk) and active product status. Electrical performance in circuit operation is equivalent.
Q: What is the difference between the "P" and "V" designations in the part numbers?
A: The "P" and "V" designations indicate different product lines within the Susumu RG series with varying temperature coefficient specifications. RG2012P parts feature ±25ppm/°C temperature coefficient, while RG2012V parts feature ±5ppm/°C temperature coefficient. Both maintain identical resistance values and package configurations.
Q: Are the upgraded parts (RG2012N and RG2012V series) backward compatible with designs using RG2012P-8660-W-T1?
A: Yes. All substitute parts maintain identical resistance (866 Ω), tolerance (±0.05% or tighter), power rating (0.125W), package (0805), and operating temperature range (-55°C to 155°C). Upgraded temperature coefficient specifications (±10ppm/°C or ±5ppm/°C) represent improved performance characteristics that do not compromise compatibility with existing circuit designs.
Q: What is the significance of the "-T1" and "-T5" suffixes in the part numbers?
A: The "-T1" and "-T5" suffixes denote packaging tape specifications. "-T1" indicates standard tape configuration, while "-T5" indicates alternative tape specification. Both are supplied in Tape & Reel format. The electrical specifications of the resistor remain identical regardless of tape designation.
Q: Why is RG2012P-8660-W-T1 listed as obsolete?
A: Product obsolescence reflects manufacturer discontinuation decisions. Active equivalent parts (RG2012P-8660-W-T5, RG2012N-8660-W-T1, RG2012V series) are available from the same manufacturer with identical or improved specifications, ensuring continued design support and supply chain availability.
Q: Can RG2012V-8660-P-T1 be used in applications originally designed for RG2012P-8660-W-T1?
A: Yes. RG2012V-8660-P-T1 is fully compatible with designs using RG2012P-8660-W-T1. The ±0.02% tolerance and ±5ppm/°C temperature coefficient represent tighter specifications than the original ±0.05% tolerance and ±25ppm/°C coefficient. Enhanced precision and thermal stability provide improved performance in precision measurement and temperature-sensitive applications.
Q: Are all substitute parts AEC-Q200 qualified?
A: Yes. All listed substitute parts maintain AEC-Q200 automotive qualification, anti-sulfur construction, and ROHS3 compliance identical to the original RG2012P-8660-W-T1. Moisture sensitivity level (MSL 1 - Unlimited) is consistent across all parts.
Q: What packaging format should be selected for new designs?
A: Tape & Reel (TR) packaging is standard for all active substitute parts (RG2012P-8660-W-T5, RG2012N-8660-W-T1, RG2012V series). This format is suitable for automated assembly processes. The original RG2012P-8660-W-T1 bulk packaging is no longer available due to product obsolescence.
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