TE Connectivity 1614973-7 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1614973-7 is a 120 kOhms ±0.5% 0.125W chip resistor in 1206 (3216 Metric) package with thin film composition. This part is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing production and design requirements. The original part operates across -55°C to 155°C with a temperature coefficient of ±50ppm/°C and is RoHS3 compliant with unlimited moisture sensitivity rating.

Key Parameters

Parameter	Value
Manufacturer Part Number	1614973-7
Manufacturer	TE Connectivity Passive Product
Resistance	120 kOhms
Tolerance	±0.5%
Power Rating	0.125W (1/8W)
Package / Case	1206 (3216 Metric)
Composition	Thin Film
Temperature Coefficient	±50ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Product Status	Obsolete
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1614973-7 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Resistance value: 120 kOhms (exact match required)
Package / Case: 1206 (3216 Metric) (exact match required)
Composition: Thin Film (exact match required)
Operating Temperature Range: -55°C ~ 155°C (minimum requirement)
Moisture Sensitivity Level: 1 (Unlimited) (minimum requirement)

Allowable Substitution Variations:

Tolerance: The original part specifies ±0.5%. Substitute parts with equal or tighter tolerance (±0.5%, ±0.25%, ±0.1%, ±0.05%) are acceptable.
Power Rating: The original part specifies 0.125W (1/8W). Substitute parts with equal or higher power rating (0.25W / 1/4W) are acceptable.
Temperature Coefficient: Substitute parts with equal or lower temperature coefficient values are acceptable.
Product Status: Active status substitutes are preferred over obsolete parts.
Certifications: AEC-Q200 automotive qualification and anti-sulfur features are enhancements that do not prevent substitution.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Product Status	Package
1614973-7	TE Connectivity	120 kOhms	±0.5%	0.125	±50	-55 ~ 155	Obsolete	1206
ERA-8AEB124V	Panasonic	120 kOhms	±0.1%	0.25	±25	-55 ~ 155	Active	1206
RG3216N-1203-B-T5	Susumu	120 kOhms	±0.1%	0.25	±10	-55 ~ 155	Active	1206
RG3216N-1203-D-T5	Susumu	120 kOhms	±0.5%	0.25	±10	-55 ~ 155	Active	1206
RG3216N-1203-W-T1	Susumu	120 kOhms	±0.05%	0.25	±10	-55 ~ 155	Active	1206
RG3216P-1203-B-T5	Susumu	120 kOhms	±0.1%	0.25	±25	-55 ~ 155	Active	1206
RG3216P-1203-D-T5	Susumu	120 kOhms	±0.5%	0.25	±25	-55 ~ 155	Active	1206
RT1206BRD07120KL	YAGEO	120 kOhms	±0.1%	0.25	±25	-55 ~ 155	Active	1206
RT1206BRE07120KL	YAGEO	120 kOhms	±0.1%	0.25	±50	-55 ~ 155	Active	1206
RT1206CRD07120KL	YAGEO	120 kOhms	±0.25%	0.25	±25	-55 ~ 155	Active	1206
RT1206CRE07120KL	YAGEO	120 kOhms	±0.25%	0.25	±50	-55 ~ 155	Active	1206

Engineering Selection Recommendations

All listed substitute parts are compatible with the TE Connectivity 1614973-7 based on mandatory electrical and mechanical parameters. Selection among substitutes depends on specific application requirements:

Direct Tolerance Match (±0.5%):

RG3216N-1203-D-T5 (Susumu): Active status, anti-sulfur feature, AEC-Q200 rated, lower temperature coefficient (±10ppm/°C)
RG3216P-1203-D-T5 (Susumu): Active status, anti-sulfur feature, AEC-Q200 rated, temperature coefficient ±25ppm/°C
RT1206CRD07120KL (YAGEO): Active status, temperature coefficient ±25ppm/°C
RT1206CRE07120KL (YAGEO): Active status, temperature coefficient ±50ppm/°C (matches original)

Improved Tolerance (±0.1%):

ERA-8AEB124V (Panasonic): Active status, AEC-Q200 rated, temperature coefficient ±25ppm/°C
RG3216N-1203-B-T5 (Susumu): Active status, anti-sulfur feature, AEC-Q200 rated, lowest temperature coefficient (±10ppm/°C)
RG3216P-1203-B-T5 (Susumu): Active status, anti-sulfur feature, AEC-Q200 rated, temperature coefficient ±25ppm/°C
RT1206BRD07120KL (YAGEO): Active status, temperature coefficient ±25ppm/°C, highest inventory availability
RT1206BRE07120KL (YAGEO): Active status, temperature coefficient ±50ppm/°C (matches original), highest inventory availability

Precision Grade (±0.05%):

RG3216N-1203-W-T1 (Susumu): Active status, anti-sulfur feature, AEC-Q200 rated, lowest temperature coefficient (±10ppm/°C)

All substitute parts maintain the 1206 package, thin film composition, unlimited moisture sensitivity rating, and -55°C to 155°C operating temperature range. All are RoHS3 compliant. Power rating upgrades from 0.125W to 0.25W provide thermal margin without affecting circuit functionality.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher power rating than the original 0.125W?

A: Yes. The substitute parts rated at 0.25W (1/4W) are acceptable. Higher power rating provides additional thermal capacity and does not negatively impact circuit performance. The component will operate within its rated specifications in the same application.

Q: What is the difference between tolerance grades, and which should I select?

A: Tolerance specifies the acceptable resistance value deviation from the nominal 120 kOhms. The original part specifies ±0.5%, meaning the actual resistance can range from 119.4 kOhms to 120.6 kOhms. Tighter tolerances (±0.1%, ±0.05%) provide more precise resistance values. Select based on circuit accuracy requirements. If the original design functioned with ±0.5%, any substitute with equal or tighter tolerance is compatible.

Q: What does temperature coefficient mean, and why does it vary among substitutes?

A: Temperature coefficient (ppm/°C) indicates how much the resistance value changes per degree Celsius change in operating temperature. The original part has ±50ppm/°C. Substitutes with lower temperature coefficients (±25ppm/°C, ±10ppm/°C) provide better stability across temperature extremes. Select based on circuit sensitivity to resistance drift over the -55°C to 155°C operating range.

Q: Are AEC-Q200 rated parts suitable for non-automotive applications?

A: Yes. AEC-Q200 is an automotive qualification standard indicating enhanced reliability testing and quality assurance. Parts meeting this standard are suitable for any application, including non-automotive. The qualification represents an enhancement, not a limitation.

Q: What is the anti-sulfur feature in Susumu RG series parts?

A: Anti-sulfur protection is a material enhancement that prevents sulfur contamination from degrading component performance. This feature is beneficial in harsh environments but does not restrict use in standard applications.

Q: Can I substitute parts from different manufacturers?

A: Yes. All listed substitutes meet the mandatory electrical and mechanical parameters. Manufacturer selection can be based on availability, lead time, cost, or specific certifications required by your application or supply chain.

Q: Is the 1206 package dimension identical across all manufacturers?

A: The 1206 (3216 Metric) package designation is standardized. However, minor dimensional variations exist among manufacturers. Seated height ranges from 0.020" to 0.026" across the listed parts. Verify PCB layout clearance if height-sensitive applications exist, though these variations are typically within standard PCB design tolerances.

Q: Why is the original TE Connectivity part obsolete?

A: Product obsolescence occurs when manufacturers discontinue production. The listed active substitutes provide equivalent or superior performance and are currently in production with established supply chains.

Q: Can I mix different substitute parts in the same production batch?

A: Yes, provided all selected parts meet your circuit's tolerance and temperature coefficient requirements. However, maintaining a single part number per design revision simplifies supply chain management and traceability.

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