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RG2012P-101-W-T1 Equivalent & Substitute Parts
Part Overview
The RG2012P-101-W-T1 is a 100 Ohms ±0.05% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. Manufactured by Susumu, this component features anti-sulfur coating and automotive AEC-Q200 qualification, suitable for high-reliability applications in harsh environments. The part is currently obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility while meeting automotive and industrial standards.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 100 Ohms |
| Tolerance | ±0.05% |
| Power Rating | 0.125W (1/8W) |
| Package / Case | 0805 (2012 Metric) |
| Composition | Thin Film |
| Operating Temperature Range | -55°C ~ 155°C |
| Temperature Coefficient | ±25ppm/°C (main part) |
| Ratings | AEC-Q200 (automotive) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the RG2012P-101-W-T1 is determined by strict equivalence across the following critical parameters:
Mandatory Matching Parameters:
- Resistance value: 100 Ohms
- Package / Case: 0805 (2012 Metric)
- Power rating: 0.125W (1/8W)
- Composition: Thin Film
- Operating temperature range: -55°C ~ 155°C
- Moisture sensitivity level: 1 (Unlimited)
Acceptable Variation Parameters:
- Tolerance: ±0.05% or tighter (±0.02%)
- Temperature coefficient: May be lower than ±25ppm/°C
- Packaging format: Tape & Reel (TR) acceptable as alternative to bulk
- Automotive certification: AEC-Q200 preferred but not mandatory for all substitutes
- RoHS compliance: ROHS3 or equivalent acceptable
Substitute parts are grouped into two categories: direct equivalents (matching all electrical specifications) and upgrades (improved temperature coefficient or tolerance specifications while maintaining base electrical and mechanical compatibility).
Parameter Comparison
| Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Temp Coeff (ppm/°C) | Package | Status | Packaging Format | AEC-Q200 | RoHS |
|---|---|---|---|---|---|---|---|---|---|---|
| RG2012P-101-W-T1 | Susumu | 100 Ω | ±0.05% | 0.125 | ±25 | 0805 | Obsolete | Bulk | Yes | ROHS3 |
| RG2012P-101-W-T5 | Susumu | 100 Ω | ±0.05% | 0.125 | ±25 | 0805 | Active | Tape & Reel | Yes | ROHS3 |
| RG2012N-101-W-T5 | Susumu | 100 Ω | ±0.05% | 0.125 | ±10 | 0805 | Active | Tape & Reel | Yes | ROHS3 |
| RG2012V-101-P-T1 | Susumu | 100 Ω | ±0.02% | 0.125 | ±5 | 0805 | Active | Tape & Reel | Yes | ROHS3 |
| RG2012V-101-W-T1 | Susumu | 100 Ω | ±0.05% | 0.125 | ±5 | 0805 | Active | Tape & Reel | Yes | ROHS3 |
| RG2012V-101-W-T5 | Susumu | 100 Ω | ±0.05% | 0.125 | ±5 | 0805 | Active | Tape & Reel | Yes | ROHS3 |
| PFRR0805Y1000WBT | Vishay Sfernice | 100 Ω | ±0.05% | 0.125 | ±10 | 0805 | Active | Bulk | No | Non-compliant |
| RT0805WRB07100RL | YAGEO | 100 Ω | ±0.05% | 0.125 | ±10 | 0805 | Active | Tape & Reel | No | ROHS3 |
Engineering Selection Recommendations
Primary Substitutes (Susumu RG Series - Same Manufacturer):
The RG2012P-101-W-T5 provides direct electrical equivalence with identical tolerance (±0.05%) and temperature coefficient (±25ppm/°C). The only difference is packaging format (Tape & Reel vs. bulk), making this the most straightforward replacement for the obsolete RG2012P-101-W-T1. Both maintain AEC-Q200 automotive qualification and ROHS3 compliance.
Upgraded Substitutes (Improved Specifications):
The RG2012N-101-W-T5, RG2012V-101-W-T1, and RG2012V-101-W-T5 offer superior temperature coefficient performance (±10ppm/°C or ±5ppm/°C) compared to the original ±25ppm/°C specification. These components maintain identical resistance, tolerance, power rating, and package dimensions while providing enhanced thermal stability. All three retain AEC-Q200 certification and ROHS3 compliance. The RG2012V-101-P-T1 additionally provides tighter tolerance (±0.02%) with the lowest temperature coefficient (±5ppm/°C), suitable for precision applications.
Cross-Manufacturer Alternatives:
The RT0805WRB07100RL (YAGEO) and PFRR0805Y1000WBT (Vishay Sfernice) meet core electrical and mechanical specifications. The YAGEO part maintains ROHS3 compliance and active product status. The Vishay component is RoHS non-compliant and lacks AEC-Q200 certification, limiting suitability for automotive applications. Both exhibit ±10ppm/°C temperature coefficient.
Recommendation Priority:
- RG2012P-101-W-T5 (direct equivalent, same manufacturer, active status)
- RG2012V-101-W-T1 or RG2012V-101-W-T5 (improved temperature coefficient, same manufacturer)
- RG2012N-101-W-T5 (improved temperature coefficient, high inventory)
- RT0805WRB07100RL (cross-manufacturer, ROHS3 compliant, active)
Frequently Asked Questions (FAQ)
Q: Can RG2012P-101-W-T5 directly replace RG2012P-101-W-T1?
A: Yes. Both parts share identical electrical specifications (100 Ohms ±0.05%, 0.125W, ±25ppm/°C temperature coefficient) and mechanical dimensions (0805 package). The difference is packaging format: RG2012P-101-W-T5 is supplied in Tape & Reel format while RG2012P-101-W-T1 was supplied in bulk. Both maintain AEC-Q200 automotive qualification and ROHS3 compliance.
Q: What is the difference between RG2012V and RG2012N series?
A: Both series are Susumu thin film 0805 resistors with 100 Ohms ±0.05% tolerance. The primary difference is temperature coefficient: RG2012N exhibits ±10ppm/°C while RG2012V exhibits ±5ppm/°C. The RG2012V series provides superior thermal stability for applications requiring tighter frequency or gain stability across temperature ranges.
Q: Is the PFRR0805Y1000WBT suitable for automotive applications?
A: The PFRR0805Y1000WBT meets core electrical and mechanical specifications but lacks AEC-Q200 automotive certification and is RoHS non-compliant. It is not recommended for automotive or safety-critical applications requiring AEC-Q200 qualification.
Q: What does the "T1" and "T5" designation indicate?
A: These designations indicate packaging format and tape specifications. T1 typically represents bulk or standard packaging, while T5 represents Tape & Reel format. Both formats contain identical components; the difference is in supply method and quantity per reel.
Q: Can I use RG2012V-101-P-T1 (±0.02% tolerance) in place of RG2012P-101-W-T1 (±0.05% tolerance)?
A: Yes. The RG2012V-101-P-T1 provides tighter tolerance (±0.02%) than required, making it a direct functional upgrade. It maintains identical resistance value, power rating, package dimensions, and operating temperature range. The improved tolerance and lower temperature coefficient (±5ppm/°C) provide enhanced performance for precision applications.
Q: Are all substitute parts available in the same physical dimensions?
A: Core dimensions are equivalent across all substitutes (0805 package = 2.00mm x 1.25mm length and width). Maximum seated height varies slightly: Susumu RG series and YAGEO RT series are 0.50mm to 0.60mm, while Vishay PFRR is 1.02mm. Verify PCB clearance if height is a constraint.
Q: Which substitute offers the best long-term availability?
A: RG2012N-101-W-T5 (Susumu) shows the highest current inventory (5832 pcs) and active product status, indicating strong manufacturer support and continued production. RG2012V-101-P-T1 (6536 pcs) also demonstrates robust availability. Both are recommended for new designs requiring long-term supply assurance.
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