RG2012P-1780-W-T1 Equivalent & Substitute Parts

Part Overview

The RG2012P-1780-W-T1 is a 178 Ohm ±0.05% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component features anti-sulfur coating and automotive AEC-Q200 qualification, suitable for high-reliability applications requiring precision resistance values. The part is currently classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity.

Substiute Parts

RG2012P-1780-W-T1

SusumuIn Stock: 712RG2012P-1780-W-T1 Datasheet

Current PartRFQ

RG2012P-1780-W-T5

SusumuIn Stock: 963RG2012P-1780-W-T5 Datasheet

DirectRFQ

RG2012N-1780-W-T1

SusumuIn Stock: 897RG2012N-1780-W-T1 Datasheet

UpgradeRFQ

RG2012V-1780-P-T1

SusumuIn Stock: 977RG2012V-1780-P-T1 Datasheet

UpgradeRFQ

RG2012V-1780-W-T1

SusumuIn Stock: 850RG2012V-1780-W-T1 Datasheet

UpgradeRFQ

RG2012V-1780-W-T5

SusumuIn Stock: 1098RG2012V-1780-W-T5 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RG2012P-1780-W-T1 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 178 Ohms
• Package type: 0805 (2012 Metric)
• Power rating: 0.125W (1/8W)
• Composition: Thin Film
• Features: Anti-Sulfur, Automotive AEC-Q200
• Operating temperature range: -55°C to 155°C
• RoHS compliance: ROHS3 Compliant

Allowable Variation Parameters:

• Tolerance: ±0.05% or tighter (±0.02%)
• Temperature coefficient: ±25ppm/°C or lower (±10ppm/°C, ±5ppm/°C)
• Packaging format: Bulk or Tape & Reel (TR)
• Product status: Active or Obsolete

All identified substitute parts maintain identical electrical specifications for resistance, power dissipation, and operating environment. Variations in tolerance and temperature coefficient represent performance improvements or equivalent specifications. Packaging format differences (bulk versus tape & reel) do not affect electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Equivalent Electrical Performance):

RG2012P-1780-W-T5 serves as the direct active equivalent to RG2012P-1780-W-T1. Both parts share identical electrical specifications (178 Ω, ±0.05%, 0.125W, ±25ppm/°C). The primary difference is packaging format: RG2012P-1780-W-T5 is supplied in Tape & Reel format with active product status, ensuring continued availability and manufacturing support.

Enhanced Performance Alternatives (Tighter Specifications):

RG2012N-1780-W-T1, RG2012V-1780-W-T1, RG2012V-1780-W-T5, and RG2012V-1780-P-T1 offer improved temperature coefficient performance (±10ppm/°C or ±5ppm/°C) compared to the original ±25ppm/°C specification. These parts maintain all other electrical and mechanical parameters. RG2012V-1780-P-T1 additionally provides tighter tolerance (±0.02% versus ±0.05%), suitable for applications requiring enhanced precision.

Compliance and Certification:

All substitute parts maintain AEC-Q200 automotive qualification, ROHS3 compliance, and anti-sulfur coating. Operating temperature range (-55°C to 155°C) and moisture sensitivity level (MSL 1) remain consistent across all alternatives. No compliance degradation occurs with any substitute selection.

Product Status Consideration:

Five of six substitute parts carry active product status, ensuring long-term procurement viability. The obsolete status of RG2012P-1780-W-T1 makes transition to an active equivalent necessary for future production requirements.

Frequently Asked Questions (FAQ)

Q: Can RG2012P-1780-W-T5 be used as a direct replacement for RG2012P-1780-W-T1?

A: Yes. RG2012P-1780-W-T5 is electrically and mechanically identical to RG2012P-1780-W-T1. The only difference is packaging format (Tape & Reel versus bulk). Both parts have identical resistance (178 Ω), tolerance (±0.05%), power rating (0.125W), temperature coefficient (±25ppm/°C), and package type (0805). RG2012P-1780-W-T5 is active and recommended for new designs.

Q: What is the difference between the RG2012P and RG2012V series?

A: The RG2012P series has a temperature coefficient of ±25ppm/°C, while the RG2012V series has ±5ppm/°C. Both series maintain identical resistance values, tolerance, power rating, and package specifications. The RG2012V series provides superior temperature stability for applications sensitive to thermal drift.

Q: Can I use RG2012V-1780-P-T1 instead of RG2012P-1780-W-T1?

A: Yes. RG2012V-1780-P-T1 is compatible and offers enhanced specifications: tighter tolerance (±0.02% versus ±0.05%) and lower temperature coefficient (±5ppm/°C versus ±25ppm/°C). All other parameters—resistance, power rating, package, operating temperature, and certifications—remain compatible. This part is suitable for applications requiring higher precision.

Q: Does packaging format (Tape & Reel versus bulk) affect electrical performance?

A: No. Packaging format affects only handling, storage, and assembly processes. Electrical and mechanical specifications remain identical regardless of whether the part is supplied in bulk or Tape & Reel format. Selection between formats depends on manufacturing and procurement requirements.

Q: Are all substitute parts AEC-Q200 qualified?

A: Yes. All substitute parts listed carry AEC-Q200 automotive qualification, anti-sulfur coating, and ROHS3 compliance. No degradation in reliability ratings or environmental specifications occurs with any substitute selection.

Q: Which substitute part should I select for a new design?

A: RG2012P-1780-W-T5 is the recommended direct replacement, offering identical specifications with active product status and Tape & Reel packaging. For applications requiring enhanced temperature stability, RG2012V-1780-W-T5 provides ±5ppm/°C temperature coefficient. For maximum precision requirements, RG2012V-1780-P-T1 offers ±0.02% tolerance.

Q: What is the operating temperature range for all substitute parts?

A: All parts, including the original RG2012P-1780-W-T1 and all substitutes, operate across -55°C to 155°C. No temperature range limitations apply to any substitute selection.

Q: Is moisture sensitivity a concern when selecting substitutes?

A: No. All parts carry Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements. Substitution does not introduce moisture sensitivity concerns.