Yageo KEMET T491A

T491A variants from Yageo KEMET

T491A Datasheet

Variants

Mfr

Yageo KEMET

Lifecycle

Active

T491A Overview

What changes between part numbers, and what to check before you lock the BOM — Passive Components.

Key Features

Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
67 distinct suffix patternsExamples: 104K035AT, 104K050AT, 104M035AT, 105K016AT, 105K020AT (+62 more). Decode suffix meaning in the ordering notes under the variant table.

Target Applications

Passive Components — design-in and field replacement
BOM scrub where only the base prefix is known but suffix is TBD
Second-source checks when the original MPN is constrained

Ordering Variants

Compare 67 T491A part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.

Part Number	Description	Manufacturer	Lifecycle	RoHS	Availability	Action
T491A104K035AT	Tantalum Cap 100nF 35V 10% SMD 1206 20R 125C	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A104K050AT	Tantalum Capacitor 100nF 50V 10% SMD 1206 20R 125C	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A104M035AT	100nF 35V 20% Tantalum Capacitor, 1206 SMD	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A105K016AT	Tantalum Cap 1uF 16V 10R ESR 1206 SMD 125C	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A105K020AT	Tantalum Capacitor 1uF 20V 10% SMD 1206 9 Ohm 125C	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A105K025AT	Tantalum Cap 1uF 25V 20% SMD 1206 8 Ohm 125C	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A105K035AT	1uF 35V Tantalum Capacitor, 1206 SMD, 20% Tol	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A105M016AT	1uF 16V Tantalum Capacitor, 1206 SMD, 20% Tol	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A105M020AT	1uF 20V Tantalum Capacitor, 1206 SMD	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A106K004AT	Tantalum Cap 10uF 4V 10% SMD 1206 6R 125C T/R	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A106K010AT	10uF 10V Tantalum Capacitor, 1206 SMD, 10% Tol	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A106K010AT2478	Cap Tant Solid 10uF 10V A CASE 10% (3.2 X 1.6 X 1.6mm) Inward L SMD 3216-18 3.8 Ohm 125°C Automotive T/R	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A106K010AT7280	10uF 10V Tantalum Capacitor, 1206 SMD, 10% Tol	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A106K016AT	10uF 16V Tantalum Capacitor, 1206 SMD, 10% Tol, 125C	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A106K016ATAUTO	Cap Tant Solid 10uF 16V A CASE 10% (3.2 X 1.6 X 1.6mm) Inward L SMD 3216-18 7 Ohm 125°C Automotive T/R	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A106K020AT	Tantalum Capacitor 10uF 20V 10% SMD 3216-18 5 Ohm 125°C	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A106M006AT	Tantalum Capacitor 10uF 6.3V 20% 1206 SMD 4 Ohm 125C	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A106M010AH	Tantalum Capacitor 10uF 10V 20% 1206 SMD 125C	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A106M010AT	10uF 10V Tantalum Capacitor, 1206 SMD, Polarized	Yageo KEMET	Active	Compliant	In Stock	RFQ
T491A106M016AT	Tantalum Cap 10uF 16V 20% 1206 SMD 7R ESR 125C	Yageo KEMET	Active	Compliant	In Stock	RFQ

Ordering Code Differences

How suffixes on T491A map to package, grade, and reel options.

How to Choose the Right T491A Passive Components

📦

Match the footprint first

Pull the exact package drawing for your MPN — base-number swaps fail most often at the footprint, not the schematic.

⚡

Electrical headroom

Compare voltage and current columns in the variant table. For T491A, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.

🌡️

Temp grade letter matters

Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.

🔢

Copy the full MPN

Do not BOM only "T491A" — include the full suffix (e.g. 104K035AT, 104K050AT, 104M035AT). RFQ with reel/tube preference and required date code.

Technical Specifications

Core parameters for T491A product family

Identity

Base Model

T491A

Manufacturer

Yageo KEMET

Listed Variants

Variant Parameters

Lifecycle Status

Active

RoHS Status

Compliant

Source T491A with Octatronics

Request stock confirmation, lead time, date code, and pricing for all 67 ordering variants from Yageo KEMET. Our team supports active, EOL, and hard-to-find component sourcing.

Original manufacturer parts with traceability options
BOM upload and multi-line RFQ support
Package, grade, and compliance verification

Request Quote View Yageo KEMET Browse all base models →

Frequently Asked Questions

Common technical questions about the T491A product family.

Is T491A a single part I can order, or a family prefix?

T491A is a base / family code from Yageo KEMET. You order a full MPN such as T491A104K035AT, T491A104K050AT, T491A104M035AT. The variant table lists 67 orderable lines with different suffixes.

What do the suffix letters on T491A part numbers mean?

Listed suffix fragments include: 104K035AT, 104K050AT, 104M035AT, 105K016AT, 105K020AT, 105K025AT. Typically they encode package (see Package column), temperature grade, and tape/reel option. Always decode on the Yageo KEMET datasheet ordering guide — do not guess from pattern alone.

What is the lifecycle status of T491A variants?

Lifecycle values in our listing: Active. Status is per MPN suffix — one variant can be Active while another is NRND. Check PCN for your exact suffix before multi-year commitments.

What should I send for an RFQ on T491A?

Full manufacturer MPN (not just T491A), quantity, needed date code, reel vs tube, and any compliance docs (CoC, RoHS, conflict minerals). If you only know the base prefix, include a photo of the existing label or reel.

Where is the T491A datasheet?

Use the datasheet link in the page header. Cross-check electrical curves (SOA, saturation voltage, etc.) against your operating point — the table summarizes order codes, not every graph in the PDF.