TE Connectivity 1676355-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1676355-3 is a 4.12 kOhms ±0.1% thin film chip resistor in 0805 (2012 Metric) package rated for 0.1W (1/10W) power dissipation. This component is classified as obsolete product status. Equivalent and substitute parts are necessary to maintain design continuity and ensure procurement availability for applications requiring this resistance value and tolerance specification.

Key Parameters

Parameter	Value
Resistance	4.12 kOhms
Tolerance	±0.1%
Power Rating	0.1W (1/10W)
Package	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±10ppm/°C
Operating Temperature Range	-55°C to 155°C
Terminations	2
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1676355-3 is determined by the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 4.12 kOhms
Package type: 0805 (2012 Metric)
Composition: Thin Film
Termination count: 2
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variations:

Power rating: Substitute parts may have equal or higher power ratings (0.125W, 0.26W) while maintaining electrical compatibility
Tolerance: Substitute parts may have equal or tighter tolerance specifications (±0.1%, ±0.05%, ±0.02%)
Temperature coefficient: Substitute parts may have equal or lower temperature coefficient values (±10ppm/°C, ±5ppm/°C)
Operating temperature range: Substitute parts may have equal or extended upper temperature limits (-55°C to 155°C or higher)
Additional features: Automotive AEC-Q200 certification, anti-sulfur properties, and moisture resistance are compatible enhancements

Substitute parts meeting these criteria maintain functional equivalence and can be used as direct replacements in the original application circuit.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Product Status	AEC-Q200
1676355-3	TE Connectivity	4.12 kΩ	±0.1%	0.1	±10	-55 to 155	Obsolete	No
RNCF0805BKT4K12	Stackpole Electronics	4.12 kΩ	±0.1%	0.125	±10	-55 to 155	Active	Yes
RG2012N-4121-B-T5	Susumu	4.12 kΩ	±0.1%	0.125	±10	-55 to 155	Active	Yes
RG2012N-4121-W-T1	Susumu	4.12 kΩ	±0.05%	0.125	±10	-55 to 155	Active	Yes
RG2012N-4121-W-T5	Susumu	4.12 kΩ	±0.05%	0.125	±10	-55 to 155	Active	Yes
RG2012V-4121-B-T5	Susumu	4.12 kΩ	±0.1%	0.125	±5	-55 to 155	Active	Yes
RG2012V-4121-P-T1	Susumu	4.12 kΩ	±0.02%	0.125	±5	-55 to 155	Active	Yes
RG2012V-4121-W-T1	Susumu	4.12 kΩ	±0.05%	0.125	±5	-55 to 155	Active	Yes
RG2012V-4121-W-T5	Susumu	4.12 kΩ	±0.05%	0.125	±5	-55 to 155	Active	Yes
TNPW08054K12BYEA	Vishay Dale	4.12 kΩ	±0.1%	0.26	±10	-55 to 175	Active	Yes

Engineering Selection Recommendations

Direct Equivalent (Active Status): The RNCF0805BKT4K12 from Stackpole Electronics provides the closest functional equivalent to the obsolete TE Connectivity 1676355-3. This part maintains identical resistance, tolerance, and temperature coefficient specifications while offering active product status and Automotive AEC-Q200 certification. The power rating increase from 0.1W to 0.125W provides additional thermal margin without affecting circuit operation.

Enhanced Performance Alternatives (Susumu RG Series): The Susumu RG2012N and RG2012V series parts offer active status with integrated anti-sulfur properties and AEC-Q200 automotive qualification. These parts are available in multiple tolerance grades (±0.1%, ±0.05%, ±0.02%) and temperature coefficient options (±10ppm/°C, ±5ppm/°C). Selection within this series depends on application-specific tolerance and stability requirements.

Extended Temperature Range Option: The TNPW08054K12BYEA from Vishay Dale extends the upper operating temperature limit to 175°C while maintaining 4.12 kOhms ±0.1% specification. This part is suitable for applications requiring enhanced thermal performance and offers the highest power rating (0.26W) among available substitutes.

Product Status Consideration: All substitute parts listed maintain active product status, ensuring long-term availability and supply chain continuity compared to the obsolete TE Connectivity original part.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher power rating than the original 0.1W specification?

A: Yes. Substitute parts with power ratings of 0.125W or 0.26W are electrically compatible. Higher power ratings indicate greater thermal capacity and do not affect circuit operation when the original power dissipation requirement is 0.1W or less.

Q: What is the difference between the Susumu RG2012N and RG2012V series?

A: The RG2012V series features a lower temperature coefficient (±5ppm/°C) compared to the RG2012N series (±10ppm/°C), providing superior frequency and temperature stability. Both series include anti-sulfur properties and AEC-Q200 certification.

Q: Are all substitute parts qualified to AEC-Q200 automotive standards?

A: All substitute parts listed carry AEC-Q200 automotive qualification. The original TE Connectivity 1676355-3 does not include this certification. AEC-Q200 qualification is a compatible enhancement and does not restrict use in non-automotive applications.

Q: Can I substitute a ±0.05% tolerance part for the original ±0.1% specification?

A: Yes. Tighter tolerance specifications (±0.05%, ±0.02%) are compatible substitutes for the original ±0.1% requirement. The substitute part will meet or exceed the original tolerance specification.

Q: Does the 0805 package dimension remain identical across all substitute parts?

A: Yes. All substitute parts use the 0805 (2012 Metric) package with identical footprint dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm). Maximum seated height varies slightly between manufacturers (0.020" to 0.026"), which is within standard PCB assembly tolerances.

Q: What is the Moisture Sensitivity Level (MSL) for all parts?

A: All parts, including the original and all substitutes, carry MSL 1 (Unlimited) classification, indicating no moisture sensitivity restrictions for storage or handling.

Q: Which substitute part should I select for general replacement?

A: The RNCF0805BKT4K12 from Stackpole Electronics provides the most direct replacement with matching specifications and active product status. For applications requiring enhanced stability or extended temperature range, the Susumu RG series or Vishay TNPW series offer superior performance characteristics.

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