TE Connectivity 4-1879357-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 4-1879357-3 is a 200 kOhms ±0.1% thin film chip resistor in 0805 (2012 Metric) package rated for 0.1W (1/10W) power dissipation. This component is part of the RN73 series from Holsworthy and maintains an active product status. The part operates across a temperature range of -55°C to 155°C with a temperature coefficient of ±10ppm/°C. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements necessitate enhanced specifications such as improved tolerance or higher power ratings.

Substiute Parts

4-1879357-3

TE Connectivity Passive ProductIn Stock: 11494-1879357-3 Datasheet

Current PartRFQ

RG2012N-204-W-T1

SusumuIn Stock: 32819RG2012N-204-W-T1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 4-1879357-3 is determined by strict equivalence in the following critical parameters:

Mandatory Equivalence Parameters:

• Resistance value: 200 kOhms
• Package type: 0805 (2012 Metric)
• Composition: Thin Film
• Number of terminations: 2
• Temperature coefficient: ±10ppm/°C
• Operating temperature range: -55°C to 155°C
• Moisture sensitivity level: 1 (Unlimited)

Allowable Substitution Variations:

• Tolerance may be equal to or tighter (lower numerical value) than ±0.1%
• Power rating may be equal to or higher than 0.1W
• Physical dimensions may vary within package class specifications
• Additional features such as anti-sulfur coating or automotive qualification do not preclude substitution

The Susumu RG2012N-204-W-T1 meets all mandatory equivalence parameters while providing improved tolerance (±0.05%) and higher power rating (0.125W), making it a valid substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the TE Connectivity 4-1879357-3 and Susumu RG2012N-204-W-T1 are active products suitable for direct substitution in 0805 thin film resistor applications requiring 200 kOhms resistance.

The Susumu RG2012N-204-W-T1 provides enhanced specifications including tighter tolerance (±0.05% versus ±0.1%) and higher power dissipation capability (0.125W versus 0.1W). The Susumu part carries AEC-Q200 automotive qualification and anti-sulfur coating features, with ROHS3 compliance and REACH Unaffected status. The TE Connectivity part does not specify RoHS status.

Selection between these parts depends on application requirements. The Susumu RG2012N-204-W-T1 is appropriate for applications requiring automotive-grade reliability, enhanced tolerance performance, or higher power margins. The TE Connectivity 4-1879357-3 remains suitable for general-purpose applications where the specified tolerance and power rating are sufficient.

Both parts share identical resistance value, package type, temperature coefficient, and operating temperature range, ensuring functional compatibility in circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the Susumu RG2012N-204-W-T1 directly replace the TE Connectivity 4-1879357-3 in existing designs?

A: Yes. Both parts are 200 kOhms thin film resistors in 0805 package with identical temperature coefficients and operating ranges. The Susumu part provides improved tolerance and power rating, making it functionally compatible for direct substitution.

Q: What is the significance of the tighter tolerance in the Susumu part?

A: The Susumu RG2012N-204-W-T1 offers ±0.05% tolerance compared to ±0.1% in the TE Connectivity part. This tighter tolerance reduces resistance value variation and may be required in precision analog circuits, measurement instrumentation, or applications with strict component matching requirements.

Q: Are there physical compatibility concerns when substituting these parts?

A: Both parts use the 0805 (2012 Metric) package with identical length and width dimensions (0.079" x 0.049"). The Susumu part has a lower maximum seated height (0.020" versus 0.026"), which presents no compatibility issues for standard PCB layouts and may provide advantages in space-constrained designs.

Q: What does AEC-Q200 qualification indicate?

A: AEC-Q200 is an automotive industry standard qualification for passive components. The Susumi RG2012N-204-W-T1 carries this certification, indicating compliance with automotive reliability and environmental stress testing requirements. This qualification is not specified for the TE Connectivity part.

Q: Are there compliance differences between these parts?

A: The Susumu RG2012N-204-W-T1 is ROHS3 compliant with REACH Unaffected status. The TE Connectivity 4-1879357-3 does not specify RoHS status. Both parts carry MSL 1 (Unlimited) moisture sensitivity rating and EAR99 ECCN classification.

Q: Can the TE Connectivity part substitute for the Susumu part in applications requiring AEC-Q200 qualification?

A: No. The TE Connectivity 4-1879357-3 does not carry AEC-Q200 automotive qualification. Applications requiring this certification must use the Susumu RG2012N-204-W-T1 or equivalent automotive-qualified alternatives.