TE Connectivity 1676333-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1676333-5 is a 3.92 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 obsolete product status. Identification of equivalent and substitute parts is necessary to support ongoing production requirements, design revisions, and supply chain continuity where the original part number is no longer available from primary sources.

Key Parameters

Parameter	Value
Resistance	3.92 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)
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1676333-5 is determined by the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 3.92 kOhms
Package / Case: 0805 (2012 Metric)
Composition: Thin Film
Operating temperature range: -55°C to 155°C
Moisture Sensitivity Level: MSL 1 or better

Allowable Variations:

Tolerance: Equal to or tighter than ±0.1% (±0.05%, ±0.02% are acceptable)
Power rating: Equal to or greater than 0.1W (0.125W, 1/8W substitutes are acceptable)
Temperature coefficient: Equal to or better than ±10ppm/°C (±5ppm/°C is acceptable)
Product status: Active status preferred over obsolete
Compliance certifications: ROHS3 compliance acceptable; AEC-Q200 automotive qualification is an upgrade feature

Substitute parts are grouped into two categories: direct equivalents (matching all primary specifications) and upgrades (enhanced tolerance, power rating, or automotive qualification).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Product Status	Packaging	RoHS Status
1676333-5	TE Connectivity	3.92 kΩ	±0.1%	0.1	±10	Obsolete	Bulk	RoHS Compliant
RN73C2A3K92BTD	TE Connectivity	3.92 kΩ	±0.1%	0.1	±10	Active	Tape & Reel	ROHS3 Compliant
RN73C2A3K92BTDF	TE Connectivity	3.92 kΩ	±0.1%	0.1	±10	Active	Tape & Reel	ROHS3 Compliant
RN73C2A3K92BTG	TE Connectivity	3.92 kΩ	±0.1%	0.1	±10	Active	Strip	ROHS3 Compliant
RNCF0805BKT3K92	Stackpole Electronics	3.92 kΩ	±0.1%	0.125	±10	Active	Tape & Reel	ROHS3 Compliant
RG2012N-3921-B-T5	Susumu	3.92 kΩ	±0.1%	0.125	±10	Active	Tape & Reel	ROHS3 Compliant
RG2012N-3921-W-T1	Susumu	3.92 kΩ	±0.05%	0.125	±10	Active	Tape & Reel	ROHS3 Compliant
RG2012V-3921-B-T5	Susumu	3.92 kΩ	±0.1%	0.125	±5	Active	Tape & Reel	ROHS3 Compliant
RG2012V-3921-P-T1	Susumu	3.92 kΩ	±0.02%	0.125	±5	Active	Tape & Reel	ROHS3 Compliant
RG2012V-3921-W-T1	Susumu	3.92 kΩ	±0.05%	0.125	±5	Active	Tape & Reel	ROHS3 Compliant
RG2012V-3921-W-T5	Susumu	3.92 kΩ	±0.05%	0.125	±5	Active	Tape & Reel	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalents (TE Connectivity RN73 Series)

The RN73C2A3K92BTD, RN73C2A3K92BTDF, and RN73C2A3K92BTG are direct functional equivalents manufactured by TE Connectivity. These parts maintain identical electrical specifications (3.92 kOhms ±0.1%, 0.1W, ±10ppm/°C) and operating temperature range. All three are active product status with ROHS3 compliance. Selection among these three depends on packaging requirements: Tape & Reel (TR) for automated assembly (RN73C2A3K92BTD and RN73C2A3K92BTDF) or Strip packaging for manual handling (RN73C2A3K92BTG).

Stackpole Electronics RNCF0805BKT3K92

This Stackpole part provides equivalent electrical performance with increased power rating (0.125W versus 0.1W). It carries AEC-Q200 automotive qualification and ROHS3 compliance. This part is suitable for applications requiring automotive-grade reliability without tolerance or temperature coefficient upgrades.

Susumu RG2012 Series Upgrades

The Susumu RG2012 series parts offer enhanced specifications across multiple parameters:

RG2012N-3921-B-T5 and RG2012N-3921-W-T1: Increased power rating (0.125W) with anti-sulfur coating and AEC-Q200 qualification. The W-T1 variant provides tighter tolerance (±0.05%).
RG2012V-3921-B-T5, RG2012V-3921-P-T1, RG2012V-3921-W-T1, and RG2012V-3921-W-T5: Enhanced temperature coefficient (±5ppm/°C versus ±10ppm/°C), increased power rating (0.125W), anti-sulfur coating, and AEC-Q200 qualification. Tolerance options range from ±0.1% to ±0.02%.

All Susumu parts are active status with ROHS3 compliance and MSL 1 rating. Selection among Susumu variants depends on tolerance and temperature stability requirements for the application.

Frequently Asked Questions (FAQ)

Q: Can RN73C2A3K92BTD replace 1676333-5 in existing designs?

A: Yes. RN73C2A3K92BTD is a direct functional equivalent with identical resistance (3.92 kOhms), tolerance (±0.1%), power rating (0.1W), and temperature coefficient (±10ppm/°C). The primary difference is packaging format (Tape & Reel versus bulk) and active product status. Electrical performance is equivalent.

Q: What is the difference between RN73C2A3K92BTDF and RN73C2A3K92BTG?

A: Both parts are electrically identical. The difference is packaging: RN73C2A3K92BTDF is supplied in Tape & Reel format suitable for automated pick-and-place assembly, while RN73C2A3K92BTG is supplied in Strip format for manual handling. Select based on assembly process requirements.

Q: Why would I select a Susumu RG2012 part over a TE Connectivity RN73 equivalent?

A: Susumu RG2012 parts offer enhanced specifications including higher power rating (0.125W), improved temperature coefficient (±5ppm/°C on RG2012V series), tighter tolerance options (down to ±0.02%), anti-sulfur coating, and AEC-Q200 automotive qualification. These upgrades are beneficial for applications requiring higher reliability, automotive compliance, or improved temperature stability.

Q: Is RNCF0805BKT3K92 suitable for automotive applications?

A: Yes. RNCF0805BKT3K92 carries AEC-Q200 automotive qualification and ROHS3 compliance. It provides equivalent electrical specifications to the original part with increased power rating (0.125W). It is suitable for automotive-grade applications.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life and does not require special moisture control during storage or handling. No baking or desiccant storage is required prior to assembly.

Q: Can I use a 0.125W (1/8W) rated part in place of a 0.1W (1/10W) rated part?

A: Yes. A higher power rating provides additional thermal margin and is electrically compatible. The 0.125W parts (RNCF0805BKT3K92 and all Susumu RG2012 variants) can replace the 0.1W original part without circuit modification.

Q: What is the significance of the temperature coefficient difference between ±10ppm/°C and ±5ppm/°C?

A: Temperature coefficient indicates resistance change per degree Celsius. A ±5ppm/°C coefficient (Susumu RG2012V series) provides better resistance stability across temperature extremes compared to ±10ppm/°C. This is beneficial for precision analog circuits, reference networks, and applications with wide operating temperature ranges.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts carry either RoHS Compliant or ROHS3 Compliant status. ROHS3 represents the current RoHS 3 directive compliance standard.

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