TE Connectivity 1676221-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1676221-5 is a 1 kOhms ±0.1% thin film chip resistor rated at 0.1W (1/10W) in 0805 (2012 Metric) surface mount package. This component is classified as Active product status and is designed for precision applications requiring tight tolerance specifications. The RN73 series from TE Connectivity's Holsworthy facility provides reliable performance across industrial and commercial temperature ranges. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design optimization across multiple manufacturers while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Specification
Resistance Value	1 kOhms
Tolerance	±0.1%
Power Rating	0.1W (1/10W)
Package / Case	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±10ppm/°C
Operating Temperature Range	-55°C to 155°C
Moisture Sensitivity Level	MSL 1 (Unlimited)
Number of Terminations	2
Size / Dimension	0.079" L x 0.049" W (2.00mm x 1.25mm)

Substitute Part Grouping Explanation

Substitution compatibility for the TE Connectivity 1676221-5 is determined by the following critical parameters: resistance value (1 kOhms), package type (0805 / 2012 Metric), composition (thin film), operating temperature range (-55°C to 155°C), and physical dimensions (0.079" L x 0.049" W). All substitute parts listed maintain these core electrical and mechanical specifications.

Substitute parts are grouped into two categories:

Direct Equivalents maintain identical specifications including 1 kOhms resistance, ±0.1% tolerance, 0.1W power rating, and ±10ppm/°C temperature coefficient. These parts are interchangeable without design modification.

Upgrade Alternatives provide enhanced performance characteristics such as improved tolerance (±0.05%, ±0.02%, ±0.01%), increased power rating (0.125W / 1/8W), reduced temperature coefficient (±5ppm/°C, ±2ppm/°C), or automotive qualification (AEC-Q200). These parts exceed the original specification and are suitable for applications requiring higher precision or reliability standards.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Temp Coeff (ppm/°C)	Package	Height Max (mm)	Features	RoHS Status
1676221-5	TE Connectivity	1 kOhms	±0.1%	0.1W	±10	0805	0.65	—	Not applicable
RN73C2A1K0BTD	TE Connectivity	1 kOhms	±0.1%	0.1W	±10	0805	0.65	—	ROHS3 Compliant
RN73C2A1K0BTDF	TE Connectivity	1 kOhms	±0.1%	0.1W	±10	0805	0.65	—	ROHS3 Compliant
RG2012N-102-B-T5	Susumu	1 kOhms	±0.1%	0.125W	±10	0805	0.50	Anti-Sulfur, AEC-Q200	ROHS3 Compliant
ERA-6ARB102V	Panasonic	1 kOhms	±0.1%	0.125W	±10	0805	0.60	Automotive AEC-Q200	ROHS3 Compliant
ERA-6ARW102V	Panasonic	1 kOhms	±0.05%	0.125W	±10	0805	0.60	Automotive AEC-Q200	ROHS3 Compliant
RG2012L-102-L-T05	Susumu	1 kOhms	±0.01%	0.1W	±2	0805	0.50	Anti-Sulfur, AEC-Q200	ROHS3 Compliant
RG2012V-102-P-T1	Susumu	1 kOhms	±0.02%	0.125W	±5	0805	0.50	Anti-Sulfur, AEC-Q200	ROHS3 Compliant
RNCF0805TKY1K00	Stackpole Electronics	1 kOhms	±0.01%	0.125W	±5	0805	0.65	Automotive AEC-Q200	ROHS3 Compliant
RT0805BRB071KL	YAGEO	1 kOhms	±0.1%	0.125W	±10	0805	0.60	—	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent Selection:

RN73C2A1K0BTD and RN73C2A1K0BTDF are direct equivalents manufactured by TE Connectivity within the same RN73 series. Both parts maintain identical electrical specifications (1 kOhms ±0.1%, 0.1W, ±10ppm/°C) and are ROHS3 compliant. These parts are suitable for direct substitution in applications where the original part number is unavailable. The primary difference is packaging format: RN73C2A1K0BTD is supplied in standard Tape & Reel, while RN73C2A1K0BTDF includes additional formatting designation.

Upgrade Selection for Standard Applications:

RT0805BRB071KL (YAGEO) and RG2012N-102-B-T5 (Susumu) provide increased power rating (0.125W vs. 0.1W) while maintaining ±0.1% tolerance and ±10ppm/°C temperature coefficient. These parts are suitable for applications requiring thermal margin or higher current dissipation capacity. Both are ROHS3 compliant and maintain identical resistance and tolerance specifications.

Upgrade Selection for Precision Applications:

ERA-6ARW102V (Panasonic) offers improved tolerance (±0.05%) with automotive AEC-Q200 qualification. RG2012L-102-L-T05 (Susumu) provides superior tolerance (±0.01%) and reduced temperature coefficient (±2ppm/°C) with anti-sulfur coating and AEC-Q200 rating. RNCF0805TKY1K00 (Stackpole Electronics) delivers ±0.01% tolerance with ±5ppm/°C temperature coefficient and AEC-Q200 qualification. These options are appropriate for high-precision measurement circuits, instrumentation, and automotive applications.

Upgrade Selection for Automotive Applications:

All Panasonic ERA-6A series parts (ERA-6ARB102V, ERA-6ARW102V), Susumu RG series parts (RG2012N-102-B-T5, RG2012L-102-L-T05, RG2012V-102-P-T1), and Stackpole RNCF0805TKY1K00 carry AEC-Q200 automotive qualification. These parts are suitable for automotive-grade applications requiring enhanced reliability and environmental stress screening.

All substitute parts listed maintain the 0805 (2012 Metric) package format, -55°C to 155°C operating temperature range, MSL 1 moisture sensitivity level, and 2-termination configuration. All substitute parts are ROHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can RN73C2A1K0BTD be used as a direct replacement for 1676221-5?

A: Yes. RN73C2A1K0BTD is a direct equivalent manufactured by TE Connectivity with identical electrical specifications (1 kOhms ±0.1%, 0.1W, ±10ppm/°C) and package format (0805). The primary difference is packaging format (Tape & Reel) and ROHS3 compliance status. No design modification is required.

Q: What is the difference between 0.1W and 0.125W power ratings?

A: Power rating indicates maximum continuous power dissipation. The 0.1W (1/10W) rating of the original part allows 0.1 watts continuous dissipation. Substitute parts rated 0.125W (1/8W) allow 0.125 watts continuous dissipation, providing 25% additional thermal capacity. This upgrade is suitable for applications with higher current or voltage stress but does not affect electrical performance in standard applications.

Q: Are all substitute parts compatible with the 0805 package footprint?

A: Yes. All substitute parts are specified for 0805 (2012 Metric) package format with identical length (0.079" / 2.00mm) and width (0.049" / 1.25mm) dimensions. Height variations (0.50mm to 0.65mm) are within standard PCB assembly tolerances and do not affect footprint compatibility.

Q: What does AEC-Q200 qualification mean?

A: AEC-Q200 is an automotive industry standard qualification for passive components. Parts carrying this rating have undergone enhanced reliability testing and environmental stress screening suitable for automotive applications. AEC-Q200 qualification is optional for non-automotive applications but provides additional assurance of component reliability.

Q: Which substitute part offers the best tolerance specification?

A: RG2012L-102-L-T05 (Susumu) and RNCF0805TKY1K00 (Stackpole Electronics) both offer ±0.01% tolerance, which is 10 times tighter than the original ±0.1% specification. These parts are suitable for precision measurement and instrumentation applications requiring high accuracy.

Q: Can I use ERA-6ARW102V in place of the original part?

A: Yes. ERA-6ARW102V is compatible with the original part's footprint and operating temperature range. It provides improved tolerance (±0.05% vs. ±0.1%), increased power rating (0.125W vs. 0.1W), and automotive AEC-Q200 qualification. This is an upgrade suitable for applications requiring enhanced precision or automotive-grade reliability.

Q: What is the significance of anti-sulfur coating in Susumu RG series parts?

A: Anti-sulfur coating protects the resistor element from sulfur contamination in industrial environments. This feature is particularly valuable in applications exposed to hydrogen sulfide or sulfur-containing compounds. The coating does not affect electrical performance in standard environments but provides enhanced reliability in harsh industrial conditions.

Q: Are there any height restrictions I should consider when selecting a substitute?

A: The original part has a maximum seated height of 0.65mm. Most substitute parts range from 0.50mm to 0.65mm. Lower height variants (0.50mm) may be beneficial for space-constrained designs. Verify PCB assembly clearance specifications before selecting parts with different height ratings.

Q: What is MSL 1 (Unlimited) moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. This is the least restrictive moisture sensitivity level and simplifies inventory management and assembly processes.

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

A: Yes, provided all parts meet the circuit's electrical requirements. However, for precision applications, using parts from the same manufacturer and series is recommended to ensure consistent tolerance and temperature coefficient performance across multiple resistors in the same circuit.

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