RG2012N-1873-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012N-1873-C-T5 is a 187 kOhms ±0.25% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component is designed for automotive applications with AEC-Q200 qualification and anti-sulfur construction. The part is currently obsolete, necessitating identification of equivalent and substitute components that maintain electrical and mechanical compatibility while offering improved specifications or active product status.

Substiute Parts

RG2012N-1873-C-T5

SusumuIn Stock: 1034RG2012N-1873-C-T5 Datasheet

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RG2012N-1873-B-T5

SusumuIn Stock: 926RG2012N-1873-B-T5 Datasheet

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RG2012N-1873-W-T1

SusumuIn Stock: 1128RG2012N-1873-W-T1 Datasheet

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RG2012N-1873-W-T5

SusumuIn Stock: 896RG2012N-1873-W-T5 Datasheet

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TNPW0805187KBYEA

Vishay DaleIn Stock: 917TNPW0805187KBYEA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RG2012N-1873-C-T5 is determined by the following critical parameters that must remain constant or improve:

Mandatory Compatibility Parameters:

• Resistance value: 187 kOhms (exact match required)
• Package type: 0805 (2012 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Temperature Coefficient: ±10ppm/°C (exact match required)
• Automotive Rating: AEC-Q200 (exact match required)
• Anti-Sulfur feature (exact match required)
• RoHS3 Compliance (exact match required)
• Moisture Sensitivity Level: 1 (exact match required)

Parameters Allowed to Improve:

• Tolerance: May decrease (improve) from ±0.25% to ±0.1% or ±0.05%
• Power Rating: May increase from 0.125W to higher values
• Operating Temperature Range: May extend to higher maximum temperatures
• Product Status: May transition from Obsolete to Active

All substitute parts listed maintain identical mechanical dimensions and electrical characteristics within the specified operating parameters while offering enhanced tolerance specifications or active product availability.

Parameter Comparison

Engineering Selection Recommendations

Susumu RG Series Substitutes (Same Manufacturer):

The RG2012N-1873-B-T5, RG2012N-1873-W-T5, and RG2012N-1873-W-T1 are direct Susumu alternatives with identical mechanical and thermal characteristics. All three parts are in active product status, eliminating obsolescence concerns. The primary differentiation is tolerance specification:

• RG2012N-1873-B-T5 offers ±0.1% tolerance with active availability
• RG2012N-1873-W-T5 and RG2012N-1873-W-T1 both provide ±0.05% tolerance with active availability

Selection among these three Susumu options depends on tolerance requirements for the application circuit. The ±0.05% tolerance variants provide superior precision for precision analog circuits, while the ±0.1% variant offers a balance between precision and cost.

Vishay Dale TNPW0805187KBYEA Cross-Manufacturer Substitute:

The TNPW0805187KBYEA from Vishay Dale provides a cross-manufacturer alternative with the following distinctions:

• Tolerance: ±0.1% (equivalent to RG2012N-1873-B-T5)
• Power Rating: 0.26W (doubled from 0.125W)
• Operating Temperature Range: -55°C ~ 175°C (extended upper limit by 20°C)
• Height: 0.022" (0.55mm) versus 0.020" (0.50mm) for Susumu parts

The increased power rating and extended temperature range provide additional design margin for thermal management. The marginal height increase (0.002") remains within typical PCB assembly tolerances for 0805 packages. This part is suitable for applications requiring higher thermal dissipation capability or operation in elevated temperature environments.

All substitute parts maintain AEC-Q200 automotive qualification, anti-sulfur construction, ROHS3 compliance, and unlimited moisture sensitivity rating, ensuring compatibility with automotive and industrial applications.

Frequently Asked Questions (FAQ)

Q: Can RG2012N-1873-C-T5 be directly replaced with RG2012N-1873-B-T5?

A: Yes. Both parts share identical resistance (187 kOhms), package (0805), power rating (0.125W), temperature coefficient (±10ppm/°C), operating temperature range (-55°C ~ 155°C), and all automotive qualifications. The RG2012N-1873-B-T5 provides improved tolerance (±0.1% versus ±0.25%) and active product status.

Q: What is the difference between RG2012N-1873-W-T5 and RG2012N-1873-W-T1?

A: Both parts are identical in all electrical and mechanical specifications. The difference lies in packaging configuration (T5 versus T1 reels). Both offer ±0.05% tolerance and active product status. Selection depends on tape reel specifications required by assembly equipment.

Q: Can TNPW0805187KBYEA be used as a direct replacement?

A: TNPW0805187KBYEA is mechanically and electrically compatible with the RG2012N-1873-C-T5. The part maintains identical resistance, tolerance (±0.1%), package dimensions, and automotive qualifications. The height difference (0.022" versus 0.020") is within standard PCB assembly tolerances for 0805 components. The increased power rating (0.26W versus 0.125W) and extended temperature range (-55°C ~ 175°C) provide additional design margin.

Q: Why is the RG2012N-1873-C-T5 listed as obsolete?

A: The RG2012N-1873-C-T5 has been discontinued by Susumu. Active alternatives with identical or improved specifications are available from both Susumu (RG2012N-1873-B-T5, RG2012N-1873-W-T5, RG2012N-1873-W-T1) and Vishay Dale (TNPW0805187KBYEA).

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, ensuring compatibility with automotive and industrial applications.

Q: What tolerance should I select for my application?

A: Tolerance selection depends on circuit requirements. The ±0.25% original specification is suitable for general-purpose applications. The ±0.1% variants (RG2012N-1873-B-T5 and TNPW0805187KBYEA) provide improved precision for analog circuits. The ±0.05% variants (RG2012N-1873-W-T5 and RG2012N-1873-W-T1) offer maximum precision for precision measurement and calibration circuits.

Q: Can I use TNPW0805187KBYEA in a space-constrained application?

A: The TNPW0805187KBYEA has a maximum seated height of 0.022" (0.55mm) compared to 0.020" (0.50mm) for Susumu parts. This 0.002" difference is negligible for most PCB designs. Verify clearance requirements for your specific application layout before selection.

Q: What is the moisture sensitivity rating for all parts?

A: All listed parts have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements. Standard handling and storage practices are sufficient.