TE Connectivity 1614971-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1614971-3 is a 40 kOhms ±0.1% precision thin film chip resistor rated at 0.125W (1/8W) in a 1206 (3216 Metric) surface mount package. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design requirements and procurement needs. The part operates across a temperature range of -55°C to 155°C with a temperature coefficient of ±25ppm/°C, making it suitable for precision analog applications requiring tight tolerance specifications.

Substiute Parts

1614971-3

TE Connectivity Passive ProductIn Stock: 7651614971-3 Datasheet

Current PartRFQ

MCA12060D4002BP500

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 929MCA12060D4002BP500 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1614971-3 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 40 kOhms
• Tolerance: ±0.1%
• Package: 1206 (3216 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±25ppm/°C
• Number of Terminations: 2

Allowable Variation Parameters:

• Power rating may be equal or higher (upgrade acceptable)
• Operating temperature range may be equal or narrower (downgrade acceptable)
• Physical dimensions may vary within standard 1206 package tolerances
• Product status may transition from obsolete to active

The Vishay Beyschlag MCA12060D4002BP500 qualifies as a direct substitute based on matching all critical parameters. The higher power rating (0.25W versus 0.125W) represents an upgrade that maintains full compatibility while providing additional thermal margin. The narrower upper operating temperature limit (-55°C to 125°C versus -55°C to 155°C) is acceptable for applications not requiring the extended high-temperature performance of the original part.

Parameter Comparison

Engineering Selection Recommendations

The Vishay Beyschlag MCA12060D4002BP500 is the qualified substitute for the obsolete TE Connectivity 1614971-3. Selection of this substitute is based on the following engineering factors:

Compliance and Certification Alignment: Both parts maintain identical REACH compliance status (REACH Unaffected) and identical ECCN classification (EAR99). The Vishay part carries RoHS3 compliance certification, confirming adherence to current environmental and hazardous substance restrictions.

Product Status Transition: The transition from an obsolete part to an active production part ensures long-term supply chain continuity and availability for future procurement requirements.

Electrical Performance: All critical electrical parameters—resistance value, tolerance, temperature coefficient, and composition—are identical between the two parts. The higher power rating of the Vishay part provides additional thermal headroom without introducing any electrical incompatibility.

Thermal Considerations: Applications operating exclusively within the -55°C to 125°C range experience no thermal limitation. Applications requiring operation above 125°C must retain the original TE Connectivity part or identify alternative solutions.

Packaging and Assembly: Both parts utilize the standard 1206 (3216 Metric) surface mount package with identical termination configuration. Physical dimensions remain within standard package tolerances, ensuring compatibility with existing PCB layouts and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the Vishay MCA12060D4002BP500 be used as a direct replacement for the TE Connectivity 1614971-3 in all applications?

A: The Vishay part is a direct substitute for applications operating within -55°C to 125°C. Applications requiring operation above 125°C must evaluate alternative solutions, as the Vishay part's upper temperature limit is 125°C compared to the original part's 155°C maximum.

Q: What does the higher power rating (0.25W versus 0.125W) mean for circuit performance?

A: The higher power rating indicates the Vishay part can dissipate more heat without exceeding its maximum operating temperature. In circuits designed for the original 0.125W part, the higher rating provides additional thermal margin and does not alter electrical behavior.

Q: Are there any PCB layout or assembly changes required when substituting the Vishay part?

A: No layout or assembly changes are required. Both parts use the identical 1206 (3216 Metric) package with the same footprint, termination count, and physical dimensions within standard tolerances.

Q: How do the tolerance specifications compare?

A: Both parts maintain ±0.1% tolerance, ensuring identical precision performance in analog circuits requiring tight resistor value accuracy.

Q: What is the significance of the "Anti-Sulfur" feature on the Vishay part?

A: The Anti-Sulfur feature is a material property of the Vishay part that enhances resistance to sulfur-containing environmental contaminants. This feature does not affect electrical compatibility and provides additional reliability in certain industrial environments.

Q: Are moisture sensitivity levels identical between the two parts?

A: Yes, both parts carry MSL 1 (Unlimited) classification, indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.

Q: What is the difference in packaging between the two parts?

A: The TE Connectivity part is supplied in standard packaging, while the Vishay part is supplied in Tape & Reel (TR) format. Both formats are compatible with standard SMD assembly equipment.