TE Connectivity 1676443-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1676443-3 is a 825 Ohm ±0.1% thin film chip resistor in 0805 (2012 Metric) package format with 0.1W power rating. This component is classified as obsolete product status. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications. Substitute parts maintain the core electrical specifications while offering enhanced features, improved availability, or upgraded performance characteristics.

Substiute Parts

1676443-3

TE Connectivity Passive ProductIn Stock: 9561676443-3 Datasheet

Current PartRFQ

RNCF0805BKT825R

Stackpole Electronics IncIn Stock: 1171RNCF0805BKT825R Datasheet

DirectRFQ

RG2012N-8250-B-T5

SusumuIn Stock: 1012RG2012N-8250-B-T5 Datasheet

UpgradeRFQ

RG2012N-8250-W-T1

SusumuIn Stock: 747RG2012N-8250-W-T1 Datasheet

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RG2012N-8250-W-T5

SusumuIn Stock: 1168RG2012N-8250-W-T5 Datasheet

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RG2012V-8250-B-T5

SusumuIn Stock: 859RG2012V-8250-B-T5 Datasheet

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RG2012V-8250-P-T1

SusumuIn Stock: 800RG2012V-8250-P-T1 Datasheet

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RG2012V-8250-W-T1

SusumuIn Stock: 1149RG2012V-8250-W-T1 Datasheet

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RG2012V-8250-W-T5

SusumuIn Stock: 1164RG2012V-8250-W-T5 Datasheet

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TNPW0805825RBYEA

Vishay DaleIn Stock: 1121TNPW0805825RBYEA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 1676443-3 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 825 Ohms
• Package format: 0805 (2012 Metric)
• Composition: Thin Film
• Tolerance: ±0.1% or tighter
• Operating temperature range: -55°C ~ 155°C minimum
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Upgrade Parameters:

• Power rating: 0.1W or higher (0.125W, 0.26W acceptable)
• Temperature coefficient: ±10ppm/°C or lower (±5ppm/°C acceptable)
• Additional certifications: AEC-Q200 automotive qualification acceptable
• Additional features: Anti-sulfur coating acceptable

All substitute parts listed maintain electrical equivalence while offering equal or superior performance characteristics. Active product status substitutes provide improved long-term availability compared to the obsolete main part.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Stackpole RNCF0805BKT825R): The RNCF0805BKT825R from Stackpole Electronics provides direct electrical equivalence with identical tolerance (±0.1%), temperature coefficient (±10ppm/°C), and operating temperature range. This part offers a 25% power rating increase (0.125W vs 0.1W) and includes AEC-Q200 automotive qualification. Active product status ensures long-term availability.

Enhanced Performance Substitutes (Susumu RG Series): The Susumu RG2012 series parts provide superior performance characteristics while maintaining full electrical compatibility. All RG2012 variants feature anti-sulfur coating, AEC-Q200 automotive qualification, and active product status. Temperature coefficient improvements (±5ppm/°C on RG2012V variants) and tolerance enhancements (±0.05% and ±0.02% options) are available. Power rating upgrade to 0.125W is standard across this series.

High Power Alternative (Vishay Dale TNPW0805825RBYEA): The TNPW0805825RBYEA offers the highest power rating (0.26W) with extended operating temperature range to 175°C. This part includes anti-sulfur coating, moisture-resistant construction, and AEC-Q200 automotive qualification. Suitable for applications requiring enhanced thermal performance or higher power dissipation margins.

Selection Criteria:

• For direct replacement with minimal design changes: RNCF0805BKT825R
• For automotive applications with enhanced reliability: Any Susumu RG2012 variant
• For applications requiring superior temperature stability: RG2012V series (±5ppm/°C)
• For applications requiring tighter tolerance control: RG2012V-8250-P-T1 (±0.02%)
• For high-power or high-temperature applications: TNPW0805825RBYEA

All substitute parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes.

Frequently Asked Questions (FAQ)

Q: Can RNCF0805BKT825R directly replace the TE Connectivity 1676443-3?

A: Yes. The RNCF0805BKT825R maintains identical resistance (825 Ohms), tolerance (±0.1%), temperature coefficient (±10ppm/°C), and operating temperature range (-55°C ~ 155°C). The 0.125W power rating exceeds the original 0.1W specification, providing additional design margin. Both parts use 0805 (2012 Metric) package format with identical physical dimensions.

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

A: The RG2012N series maintains ±10ppm/°C temperature coefficient matching the original part. The RG2012V series provides improved temperature stability at ±5ppm/°C. Both series offer identical resistance, tolerance options, power rating, and package format. Selection depends on application temperature stability requirements.

Q: Are all substitute parts AEC-Q200 qualified?

A: Yes. All listed substitute parts carry AEC-Q200 automotive qualification. The original TE Connectivity 1676443-3 does not specify AEC-Q200 qualification. This qualification is an upgrade feature available in all active substitutes.

Q: What does the anti-sulfur feature provide?

A: Anti-sulfur coating protects the resistor element from sulfur-containing environmental contaminants that can degrade performance. This feature is present on all Susumu RG2012 series and Vishay Dale TNPW parts. The Stackpole RNCF0805BKT825R does not include this feature.

Q: Can I use TNPW0805825RBYEA in place of the original part?

A: Yes. The TNPW0805825RBYEA is electrically compatible with identical resistance (825 Ohms) and tolerance (±0.1%). The 0.26W power rating significantly exceeds the 0.1W original specification. Extended operating temperature range to 175°C provides additional thermal margin. Physical dimensions remain compatible with 0805 package footprint.

Q: What is the significance of tolerance ratings (±0.1%, ±0.05%, ±0.02%)?

A: Tolerance indicates the maximum deviation from the nominal 825 Ohm value. ±0.1% allows ±0.825 Ohm deviation. ±0.05% allows ±0.4125 Ohm deviation. ±0.02% allows ±0.165 Ohm deviation. Tighter tolerance parts (RG2012V-8250-P-T1 at ±0.02%) provide superior precision for applications requiring strict resistance accuracy. All tolerances remain within acceptable substitution parameters.

Q: Are there physical dimension differences between substitute parts?

A: All parts use identical 0805 (2012 Metric) package format with 0.079" L x 0.049" W (2.00mm x 1.25mm) dimensions. Maximum seated height varies slightly: original part at 0.026" (0.65mm), Stackpole at 0.026" (0.65mm), Susumu RG series at 0.020" (0.50mm), and Vishay Dale at 0.022" (0.55mm). These variations remain within standard PCB assembly tolerances and do not affect compatibility.

Q: What is Moisture Sensitivity Level (MSL) 1?

A: MSL 1 indicates unlimited shelf life without moisture baking requirements. All listed parts carry MSL 1 classification, meaning they can be stored indefinitely without special humidity control or pre-reflow baking procedures.

Q: Which substitute offers the best long-term availability?

A: All substitute parts carry active product status, ensuring superior long-term availability compared to the obsolete original part. Stackpole RNCF0805BKT825R and Susumu RG2012 series represent major manufacturers with established distribution networks. Vishay Dale TNPW series also maintains active status with broad market availability.