TE Connectivity 7-1879063-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 7-1879063-2 is a 2.2 µF molded tantalum capacitor rated for 35 V with ±20% tolerance, housed in a 1411 (3528 Metric) surface mount package. This component operates across a temperature range of -55°C to 125°C with an equivalent series resistance (ESR) of 2.5 Ohm and moisture sensitivity level (MSL) of 1 (Unlimited).

The 7-1879063-2 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this capacitor specification.

Substiute Parts

7-1879063-2

TE Connectivity Passive ProductIn Stock: 10457-1879063-2 Datasheet

Current PartRFQ

TH3B225K035D2500

Vishay SpragueIn Stock: 878TH3B225K035D2500 Datasheet

DirectRFQ

T494B225K035AT

KEMETIn Stock: 2897T494B225K035AT Datasheet

UpgradeRFQ

TH3B225K035C2500

Vishay SpragueIn Stock: 754TH3B225K035C2500 Datasheet

UpgradeRFQ

TH3B225M035C2500

Vishay SpragueIn Stock: 799TH3B225M035C2500 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 7-1879063-2 are qualified based on the following critical parameters that must remain constant or improve:

Mandatory Matching Parameters:

• Capacitance: 2.2 µF (exact match required)
• Voltage - Rated: 35 V (exact match required)
• Package / Case: 1411 (3528 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• ESR (Equivalent Series Resistance): 2.5 Ohm (exact match required)
• Physical Dimensions: 0.138" L x 0.110" W (3.50mm x 2.80mm) (exact match required)
• Height - Seated (Max): 0.083" (2.10mm) (exact match required)
• Moisture Sensitivity Level (MSL): 1 (Unlimited) (exact match required)

Allowable Variations:

• Tolerance: May be ±10% (tighter than original ±20%)
• Operating Temperature Range: May extend beyond -55°C ~ 125°C
• Product Status: Active status preferred over obsolete
• Compliance: RoHS3 compliance and automotive ratings (AEC-Q200) represent enhancements

All substitute parts listed maintain identical electrical and mechanical specifications while offering improved product availability and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Direct Electrical Equivalents:

The substitute parts TH3B225K035D2500, T494B225K035AT, TH3B225K035C2500, and TH3B225M035C2500 are direct functional equivalents to the 7-1879063-2. All maintain identical capacitance (2.2 µF), voltage rating (35 V), ESR (2.5 Ohm), package dimensions (1411/3528 Metric), and moisture sensitivity level (MSL 1).

Product Status Advantage:

All four substitute parts carry Active product status, eliminating obsolescence concerns associated with the original 7-1879063-2. This ensures long-term availability and supply chain continuity.

Compliance and Certification:

All substitute parts are ROHS3 compliant. The Vishay Sprague parts (TH3B225K035D2500, TH3B225K035C2500, TH3B225M035C2500) carry AEC-Q200 automotive qualification, indicating enhanced reliability screening and suitability for automotive applications.

Tolerance Selection:

For applications requiring tighter capacitance tolerance, the ±10% tolerance variants (TH3B225K035D2500, T494B225K035AT, TH3B225K035C2500) provide improved accuracy compared to the original ±20% specification. The TH3B225M035C2500 maintains the original ±20% tolerance for applications where this specification is sufficient.

Temperature Range Consideration:

The Vishay Sprague parts extend the operating temperature range to -55°C ~ 150°C, providing additional thermal margin beyond the original -55°C ~ 125°C specification. The KEMET T494B225K035AT maintains the original temperature range.

Frequently Asked Questions (FAQ)

Q: Can the substitute parts be used as direct replacements for the 7-1879063-2?

A: Yes. All listed substitute parts maintain identical electrical specifications (2.2 µF, 35 V, 2.5 Ohm ESR) and physical dimensions (1411/3528 Metric package). They are mechanically and electrically interchangeable with the original part.

Q: What is the difference between the ±10% and ±20% tolerance variants?

A: Tolerance defines the allowable deviation of actual capacitance from the nominal 2.2 µF value. The ±10% variants (TH3B225K035D2500, T494B225K035AT, TH3B225K035C2500) provide tighter capacitance accuracy, with actual values ranging from 1.98 µF to 2.42 µF. The ±20% variants (original 7-1879063-2 and TH3B225M035C2500) allow actual values from 1.76 µF to 2.64 µF. Selection depends on circuit requirements for capacitance precision.

Q: Are the substitute parts suitable for automotive applications?

A: The Vishay Sprague parts (TH3B225K035D2500, TH3B225K035C2500, TH3B225M035C2500) carry AEC-Q200 automotive qualification. The KEMET T494B225K035AT does not specify automotive qualification. Automotive application requirements should determine part selection.

Q: What does ROHS3 compliance mean?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting the use of specific hazardous materials including lead, mercury, cadmium, and certain flame retardants. All substitute parts are ROHS3 compliant.

Q: Do the substitute parts have the same moisture sensitivity level?

A: Yes. All substitute parts maintain MSL 1 (Unlimited), identical to the original 7-1879063-2. This classification indicates no moisture sensitivity precautions are required during storage or handling.

Q: What is the significance of the extended temperature range in the Vishay Sprague parts?

A: The Vishay Sprague parts operate to -55°C ~ 150°C, compared to the original -55°C ~ 125°C range. This extended upper temperature limit provides additional thermal margin and may be beneficial in high-temperature applications, though it does not alter the part's suitability for applications within the original temperature specification.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All substitute parts are supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes. The original 7-1879063-2 packaging format was not specified in the provided data.

Q: Which substitute part should be selected for new designs?

A: For new designs, selection should be based on specific application requirements: tolerance precision (±10% or ±20%), automotive qualification needs (AEC-Q200), and temperature range requirements. All parts are electrically and mechanically equivalent and suitable for new applications.