1676904-9 Equivalent & Substitute Parts

Part Overview

The 1676904-9 is a 10 µF molded tantalum capacitor manufactured by TE Connectivity Passive Product, rated for 16 V operation in a 1411 (3528 Metric) surface mount package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design support and procurement. The original part features a ±20% capacitance tolerance, 2.8 Ohm equivalent series resistance (ESR), and operates across the temperature range of -55°C to 125°C. Substitute parts are required to maintain circuit functionality and ensure component availability for new production and field replacements.

Substiute Parts

1676904-9

TE Connectivity Passive ProductIn Stock: 8771676904-9 Datasheet

Current PartRFQ

T491B106M016AH

KEMETIn Stock: 1683T491B106M016AH Datasheet

DirectRFQ

T491B106M016AT

KEMETIn Stock: 3530T491B106M016AT Datasheet

DirectRFQ

T491B106K016AT

KEMETIn Stock: 108084T491B106K016AT Datasheet

UpgradeRFQ

T498B106K016ATE2K8

KEMETIn Stock: 568411T498B106K016ATE2K8 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1676904-9 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Capacitance: 10 µF (exact match required)
• Voltage Rating: 16 V (exact match required)
• Package / Case: 1411 (3528 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: Minimum -55°C to 125°C (equal or extended range acceptable)
• Moisture Sensitivity Level: MSL 1 (exact match required)

Secondary Compatibility Parameters:

• Tolerance: ±20% or tighter (±10% acceptable as upgrade)
• ESR: 2.8 Ohm or lower (lower ESR acceptable as upgrade)
• Type: Molded Tantalum (exact match required)

All substitute parts listed maintain identical physical dimensions and mounting characteristics, ensuring direct board-level compatibility without layout modifications. Tolerance and ESR variations represent performance upgrades rather than functional deviations.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Same Electrical Performance):

T491B106M016AH and T491B106M016AT are direct electrical equivalents to the 1676904-9, maintaining identical capacitance, voltage rating, tolerance, and ESR specifications. Both parts are manufactured by KEMET and are classified as active products. T491B106M016AT offers the advantage of ROHS3 compliance, whereas T491B106M016AH is RoHS non-compliant. For new designs and applications requiring regulatory compliance, T491B106M016AT is the preferred direct substitute.

Upgraded Performance Options:

T491B106K016AT provides improved tolerance (±10% versus ±20%) and reduced ESR (2.0 Ohm versus 2.8 Ohm) while maintaining all other electrical and mechanical parameters. This part is ROHS3 compliant and suitable for applications requiring tighter capacitance control and lower impedance characteristics.

T498B106K016ATE2K8 represents an extended-temperature upgrade, supporting operation to 150°C (versus 125°C maximum for the original part) with ±10% tolerance and automotive-grade qualification (AEC-Q200). This part is ROHS3 compliant and suitable for automotive and high-temperature applications. The ESR specification matches the original part at 2.8 Ohm.

Compliance Considerations:

All substitute parts maintain REACH Unaffected status and MSL 1 classification. For applications requiring RoHS3 compliance, T491B106M016AT, T491B106K016AT, and T498B106K016ATE2K8 are suitable selections. T491B106M016AH does not meet RoHS3 requirements and should be avoided in applications subject to RoHS directives.

Frequently Asked Questions (FAQ)

Q: Can T491B106M016AH be used as a direct replacement for 1676904-9?

A: T491B106M016AH is electrically and mechanically compatible with 1676904-9, matching all critical parameters including capacitance, voltage rating, tolerance, ESR, package dimensions, and operating temperature range. However, this part is RoHS non-compliant. For applications requiring RoHS3 compliance, T491B106M016AT is the appropriate selection.

Q: What is the difference between T491B106M016AT and T491B106M016AH?

A: Both parts are identical in electrical specifications and physical dimensions. The primary difference is RoHS compliance status: T491B106M016AT is ROHS3 compliant, while T491B106M016AH is RoHS non-compliant. Packaging also differs: T491B106M016AT is supplied in Cut Tape (CT) & Digi-Reel format, while T491B106M016AH is supplied in Tape & Reel (TR) format.

Q: Can T491B106K016AT be used instead of 1676904-9?

A: Yes. T491B106K016AT is a functional upgrade with tighter tolerance (±10% versus ±20%) and lower ESR (2.0 Ohm versus 2.8 Ohm). All other parameters including capacitance, voltage rating, package, dimensions, and operating temperature range are identical. This part is ROHS3 compliant and suitable for direct substitution.

Q: What are the advantages of T498B106K016ATE2K8?

A: T498B106K016ATE2K8 extends the maximum operating temperature to 150°C (versus 125°C for the original part) and includes automotive-grade qualification (AEC-Q200). Capacitance, voltage rating, tolerance (±10%), and package dimensions remain identical. ESR matches the original specification at 2.8 Ohm. This part is ROHS3 compliant and suitable for automotive and high-temperature applications.

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

A: No. T491B106M016AT and T491B106K016AT are supplied in Cut Tape (CT) & Digi-Reel format. T491B106M016AH is supplied in Tape & Reel (TR) format. T498B106K016ATE2K8 is supplied in Cut Tape (CT) & Digi-Reel format. Packaging selection should align with assembly process requirements and inventory management practices.

Q: Do all substitute parts have the same physical dimensions as 1676904-9?

A: Yes. All substitute parts maintain identical physical dimensions: 0.138" L x 0.110" W (3.50mm x 2.80mm) with a maximum seated height of 0.083" (2.10mm). Direct board-level substitution is possible without layout modifications.

Q: What is the moisture sensitivity level for all substitute parts?

A: All substitute parts are classified as MSL 1 (Unlimited), identical to the original 1676904-9. This classification indicates unlimited shelf life under normal storage conditions without special moisture control requirements.

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

A: For new designs requiring RoHS3 compliance and standard performance, T491B106M016AT is the recommended selection. For applications requiring improved tolerance and lower ESR, T491B106K016AT is appropriate. For automotive applications or high-temperature environments, T498B106K016ATE2K8 is the suitable choice.