Yageo KEMET T491A

T491A variants from Yageo KEMET

Variants

Mfr

Yageo

Lifecycle

Active

T491A Overview

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

T491A is a Yageo order-code family — not a single orderable MPN. This page lists 67 variants that share the same core device but differ in suffix fields (package, grade, reel/tube, electrical bin, etc.). Pick the exact full part number; substituting within the family without checking the datasheet often causes assembly or spec mismatches.

Tantalum Cap 100nF 35V 10% SMD 1206 20R 125C Other listed variants describe: Tantalum Capacitor 100nF 50V 10% SMD 1206 20R 125C; 100nF 35V 20% Tantalum Capacitor, 1206 SMD.

Suffix examples in this family: 104K035AT, 104K050AT, 104M035AT, 105K016AT, 105K020AT, 105K025AT, 105K035AT, 105M016AT. The characters after the base number usually encode package, temperature, or performance grade — compare the variant table column-by-column rather than assuming pin-compatible drops-in.

Example MPNs: T491A104K035AT, T491A104K050AT, T491A104M035AT, T491A105K016AT, T491A105K020AT, T491A105K025AT.

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.

T491A uses a shared prefix; characters after the prefix encode orderable options. Two lines with the same prefix are not drop-in replacements unless the differing columns match your need.

Suffixes seen here: 104K035AT, 104K050AT, 104M035AT, 105K016AT, 105K020AT, 105K025AT, 105K035AT, 105M016AT, 105M020AT, 106K004AT (+57 more).

Full MPN examples: T491A104K035AT, T491A104K050AT, T491A104M035AT, T491A105K016AT, T491A105K020AT.

Tip: photograph or copy the reel label — reel diameter, QTY per reel, and moisture sensitivity level (MSL) are often suffix-driven and won't show in the schematic.

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

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. 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 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. 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 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.