TE Connectivity 1676226-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1676226-5 is a 1.21 kOhms ±0.1% thin film chip resistor in 0805 (2012 Metric) surface mount package rated for 0.1W (1/10W) power dissipation. This component operates across the temperature range of -55°C to 155°C with a temperature coefficient of ±10ppm/°C. The part is currently in active production status with 635 units available in inventory. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and application-specific requirements where alternative specifications may provide enhanced performance characteristics or improved availability.

Substiute Parts

1676226-5

TE Connectivity Passive ProductIn Stock: 6651676226-5 Datasheet

Current PartRFQ

RN73C2A1K21BTDF

TE Connectivity Passive ProductIn Stock: 5935RN73C2A1K21BTDF Datasheet

DirectRFQ

RG2012N-1211-W-T1

SusumuIn Stock: 2067RG2012N-1211-W-T1 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 1676226-5 is determined by the following critical parameters: resistance value (1.21 kOhms), package type (0805 / 2012 Metric), composition (thin film), operating temperature range (-55°C to 155°C), and termination count (2). Parts meeting these core requirements are classified as direct equivalents or upgrades based on tolerance specification and power rating.

Direct Equivalent Classification: Parts with identical resistance value, tolerance (±0.1%), power rating (0.1W), and package type qualify as direct equivalents. These parts are interchangeable without circuit redesign.

Upgrade Classification: Parts with superior tolerance (±0.05% or better), equal or higher power rating (≥0.1W), and identical package type qualify as upgrades. Upgrades provide enhanced performance characteristics while maintaining mechanical and electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

RN73C2A1K21BTDF (Direct Equivalent): This TE Connectivity part maintains identical electrical specifications to the 1676226-5, including resistance value, tolerance, power rating, and temperature characteristics. The primary distinction is packaging format (Tape & Reel versus bulk) and compliance documentation. RN73C2A1K21BTDF carries ROHS3 compliance and REACH Unaffected status, providing enhanced regulatory documentation. This part is suitable for direct substitution in applications where the original part specification is required and higher inventory availability is beneficial.

RG2012N-1211-W-T1 (Upgrade): This Susumu resistor provides superior tolerance (±0.05% versus ±0.1%) and increased power rating (0.125W versus 0.1W) while maintaining identical resistance value and package type. The part includes Anti-Sulfur coating and AEC-Q200 automotive qualification. The maximum seated height is reduced to 0.020" (0.50mm) compared to 0.026" (0.65mm) for the main part. This upgrade is applicable in applications requiring enhanced precision, higher power dissipation capability, or automotive-grade reliability. All three parts maintain identical operating temperature range, temperature coefficient, and moisture sensitivity level.

Frequently Asked Questions (FAQ)

Q: Can RN73C2A1K21BTDF be used as a direct replacement for 1676226-5?

A: Yes. RN73C2A1K21BTDF is a direct equivalent with identical resistance value (1.21 kOhms), tolerance (±0.1%), power rating (0.1W), package type (0805), and operating temperature range (-55°C to 155°C). The primary difference is packaging format (Tape & Reel versus bulk) and improved regulatory compliance documentation.

Q: What are the advantages of using RG2012N-1211-W-T1 over the original 1676226-5?

A: RG2012N-1211-W-T1 offers tighter tolerance (±0.05% versus ±0.1%), higher power rating (0.125W versus 0.1W), Anti-Sulfur coating, and AEC-Q200 automotive qualification. These characteristics provide enhanced precision and reliability for demanding applications. The reduced seated height (0.020" versus 0.026") may benefit high-density PCB layouts.

Q: Are all three parts mechanically compatible with the same PCB footprint?

A: Yes. All three parts use the 0805 (2012 Metric) package with identical length (0.079") and width (0.049"). The seated height variation (0.026" for 1676226-5 and RN73C2A1K21BTDF versus 0.020" for RG2012N-1211-W-T1) does not affect PCB footprint compatibility.

Q: What is the significance of the ±10ppm/°C temperature coefficient across all three parts?

A: The temperature coefficient of ±10ppm/°C indicates the maximum resistance change per degree Celsius across the operating temperature range. This specification is identical for all three parts, ensuring consistent thermal performance characteristics in applications operating across the -55°C to 155°C range.

Q: Does the 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 Tape & Reel or bulk format.

Q: Are RN73C2A1K21BTDF and RG2012N-1211-W-T1 suitable for applications requiring RoHS compliance?

A: Both RN73C2A1K21BTDF and RG2012N-1211-W-T1 carry ROHS3 compliance certification. The original 1676226-5 lists RoHS status as "Not applicable." Applications requiring RoHS compliance should specify either substitute part.

Q: What is the difference between ±0.1% and ±0.05% tolerance?

A: Tolerance specifies the maximum deviation from the nominal resistance value. ±0.1% tolerance (1676226-5 and RN73C2A1K21BTDF) allows deviation of ±1.21 ohms from 1.21 kOhms. ±0.05% tolerance (RG2012N-1211-W-T1) allows deviation of ±0.605 ohms, providing twice the precision. Tighter tolerance is beneficial in precision measurement circuits and high-accuracy applications.

Q: Can RG2012N-1211-W-T1 be used in applications originally designed for 1676226-5 without circuit modification?

A: Yes. RG2012N-1211-W-T1 maintains identical resistance value, temperature coefficient, and operating temperature range. The superior tolerance and higher power rating represent performance enhancements that do not require circuit redesign. The part is mechanically compatible with the same PCB footprint.