RG2012N-1872-B-T1 Equivalent & Substitute Parts

Part Overview

The RG2012N-1872-B-T1 is an 18.7 kOhms ±0.1% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component features anti-sulfur construction, automotive AEC-Q200 qualification, and operates across -55°C to 155°C. The part is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing design requirements and procurement continuity.

Substiute Parts

RG2012N-1872-B-T1

SusumuIn Stock: 1198RG2012N-1872-B-T1 Datasheet

Current PartRFQ

RG2012N-1872-B-T5

SusumuIn Stock: 1117RG2012N-1872-B-T5 Datasheet

DirectRFQ

RG2012N-1872-W-T1

SusumuIn Stock: 965RG2012N-1872-W-T1 Datasheet

UpgradeRFQ

RG2012N-1872-W-T5

SusumuIn Stock: 1034RG2012N-1872-W-T5 Datasheet

UpgradeRFQ

TNPW080518K7BYEA

Vishay DaleIn Stock: 861TNPW080518K7BYEA Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RG2012N-1872-B-T1 is determined by the following critical parameters:

Primary Substitution Criteria:

• Resistance value: 18.7 kOhms
• Package type: 0805 (2012 Metric)
• Composition: Thin Film
• Automotive qualification: AEC-Q200
• Temperature coefficient: ±10ppm/°C
• Moisture sensitivity level: 1 (Unlimited)
• RoHS compliance: ROHS3 Compliant

Secondary Substitution Parameters:

• Tolerance: ±0.1% or tighter (±0.05%)
• Power rating: 0.125W minimum
• Operating temperature range: -55°C minimum to 155°C minimum
• Anti-sulfur construction

Substitute parts are grouped into two categories: direct equivalents (matching all primary parameters) and upgrades (enhanced tolerance or power rating specifications).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Substitutes:

RG2012N-1872-B-T5 serves as the direct equivalent to the obsolete RG2012N-1872-B-T1. Both components share identical electrical specifications (18.7 kOhms ±0.1%, 0.125W) and mechanical dimensions. The primary distinction is packaging format: RG2012N-1872-B-T5 is supplied in Tape & Reel (TR) format with active product status, enabling standard procurement workflows. This part is suitable for direct replacement in existing designs without circuit modification.

Upgraded Tolerance Substitutes:

RG2012N-1872-W-T1 and RG2012N-1872-W-T5 provide enhanced tolerance specifications (±0.05% versus ±0.1%) while maintaining all other electrical and mechanical parameters. Both are Susumu RG series components with active product status. Selection between T1 and T5 variants depends on packaging requirements; both are available in Tape & Reel format. These upgrades are applicable where tighter tolerance specifications improve circuit performance or measurement accuracy.

Cross-Manufacturer Substitute:

TNPW080518K7BYEA (Vishay Dale TNPW e3 series) provides functional equivalence with enhanced power rating (0.26W versus 0.125W) and extended operating temperature range (-55°C to 175°C versus -55°C to 155°C). This component maintains ±0.1% tolerance, AEC-Q200 automotive qualification, and anti-sulfur construction. The increased power dissipation capability and higher maximum operating temperature support applications with elevated thermal or environmental demands. Physical dimensions remain compatible with 0805 package footprints.

All substitute parts maintain ROHS3 compliance, AEC-Q200 automotive qualification, and MSL 1 moisture sensitivity rating, ensuring compatibility with automotive and industrial applications.

Frequently Asked Questions (FAQ)

Q: Can RG2012N-1872-B-T5 be used as a direct replacement for RG2012N-1872-B-T1?

A: Yes. Both components have identical electrical specifications (18.7 kOhms ±0.1%, 0.125W), mechanical dimensions (0805 package), and material composition (thin film). The primary difference is packaging format; RG2012N-1872-B-T5 is supplied in Tape & Reel format with active product status, making it suitable for direct substitution in production environments.

Q: What is the difference between the Susumu RG series variants (B-T1, B-T5, W-T1, W-T5)?

A: The letter designation indicates tolerance specification: "B" denotes ±0.1% tolerance, while "W" denotes ±0.05% tolerance. The numeric suffix (T1 or T5) indicates packaging format and tape specifications. All variants maintain identical resistance values, power ratings, and package dimensions.

Q: Is TNPW080518K7BYEA compatible with the original RG2012N-1872-B-T1 footprint?

A: Yes. TNPW080518K7BYEA is housed in the same 0805 (2012 Metric) package with compatible footprint dimensions (0.079" L x 0.049" W). The maximum seated height is 0.022" (0.55mm) compared to 0.020" (0.50mm) for the Susumu parts; this minor difference does not affect PCB assembly compatibility.

Q: Can I use TNPW080518K7BYEA in applications requiring 0.125W power dissipation?

A: Yes. TNPW080518K7BYEA is rated for 0.26W power dissipation, which exceeds the 0.125W requirement of the original part. The component operates safely at lower power levels within its rated specification.

Q: Are all substitute parts AEC-Q200 qualified?

A: Yes. All listed substitute parts carry AEC-Q200 automotive qualification, anti-sulfur construction, and ROHS3 compliance, maintaining compatibility with automotive and industrial applications.

Q: What is the maximum operating temperature for each substitute?

A: RG2012N-1872-B-T5, RG2012N-1872-W-T1, and RG2012N-1872-W-T5 operate to 155°C maximum. TNPW080518K7BYEA extends to 175°C maximum, providing additional thermal margin for high-temperature applications.

Q: Do all parts have the same moisture sensitivity level?

A: Yes. All parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions and unlimited shelf life under standard storage conditions.