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Home > Products > Capacitors > Tantalum - Polymer Capacitors > T551B827K006AH
KEMET
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T551B827K006AH

In Stock 1214 pcs Reference Price(In US Dollars)
44+
$30.0887
Manufacturer Part Number:
T551B827K006AH
Manufacturer / Brand
KEMET
Part of Description:
CAP TANT POLY 820UF 6.3V AXIAL
Datasheets:
T551B827K006AH.pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 1214 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number T551B827K006AH
Manufacturer / Brand KEMET
Stock Quantity 1214 pcs Stock
Category Capacitors > Tantalum - Polymer Capacitors
Description CAP TANT POLY 820UF 6.3V AXIAL
Lead Free Status / RoHS Status: ROHS3 Compliant
Voltage - Rated 6.3 V
Type Hermetically Sealed
Tolerance ±10%
Size / Dimension 0.312' Dia x 0.641' L (7.92mm x 16.28mm)
Series T551
Ratings -
Package / Case Axial, Can
Package Tray
Operating Temperature -55°C ~ 125°C
Mounting Type Through Hole
Manufacturer Size Code B
Lifetime @ Temp. 2000 Hrs @ 85°C
Lead Spacing -
Height - Seated (Max) -
Features General Purpose
ESR (Equivalent Series Resistance) 90mOhm @ 100kHz
Capacitance 820 µF
Base Product Number T551B

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



We accept the payment terms: Telegraphic Transfer(T/T), Credit Card, PayPal and Western Union.

PayPal:

PayPal Bank Information:
Company Name : IC COMPONENTS LTD
Paypal ID: Info@IC-Components.com

BANK TRANSFAR (Telegraphic Transfer)

Payment For Telegraphic Transfers:
Company Name : IC COMPONENTS LTD Beneficiary Account Number : 549-100669-701
Beneficiary Bank name : Bank of Communications (Hong Kong) Ltd Beneficiary Bank Code : 382 (for local payment)
Beneficiary Bank SWIFT : COMMHKHK
Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

Any inquires or questions, please kindly contact us Email: Info@IC-Components.com


Frequently Asked Questions

Can the T551B827K006AH be safely used on a 5V power rail considering standard tantalum voltage derating guidelines?
While the T551B827K006AH is rated for 6.3V, polymer tantalum technology typically allows for a more relaxed derating profile compared to traditional MnO2 tantalum capacitors. Operating this part at 5V provides approximately a 20% voltage margin. For mission-critical applications where high reliability is paramount, this margin is acceptable, but for 5V rails with high inductive spikes, a higher voltage rating might be considered. However, for a 3.3V bus, the T551B827K006AH offers an excellent safety margin exceeding 45%, ensuring long-term dielectric stability.
Why should an engineer choose the hermetically sealed T551B827K006AH instead of a high-capacitance surface-mount polymer capacitor for vacuum-environment applications?
Standard surface-mount polymer capacitors can suffer from outgassing or performance degradation when exposed to vacuum or extreme humidity fluctuations. The T551B827K006AH features a true hermetic seal that prevents the exchange of moisture and gases between the internal capacitor element and the external environment. This construction ensures that the 820 µF capacitance and 90mOhm ESR remain stable in aerospace telemetry or deep-space applications where atmospheric pressure varies significantly.
What are the design implications of the 90mOhm ESR when replacing an older axial wet tantalum capacitor with the T551B827K006AH?
The T551B827K006AH offers a significantly lower ESR than most legacy wet tantalum or standard aluminum electrolytic capacitors. When integrated into the output filter of a legacy DC-DC converter or LDO, this lower ESR can shift the control loop's zero frequency, potentially leading to regulator instability or oscillation. Engineers should perform a frequency response analysis to ensure the circuit remains stable with the reduced impedance provided by the T551B827K006AH.
How does the axial through-hole packaging of the T551B827K006AH benefit high-vibration industrial hardware compared to SMD alternatives?
Large capacitance SMD components are often susceptible to solder joint cracking or pad delamination under intense mechanical shock and vibration. The axial leaded design of the T551B827K006AH allows for through-hole mounting, which provides superior mechanical anchorage. Furthermore, the T551B827K006AH can be further secured using mechanical clips or potting compounds, making it a more resilient choice for downhole drilling equipment or heavy machinery vibration monitoring.
Does the T551B827K006AH maintain its 820 µF capacitance rating during cold-start scenarios at -55°C?
Yes, one of the primary advantages of the polymer cathode in the T551B827K006AH is its excellent low-temperature performance. Unlike liquid-electrolyte-based capacitors that experience a massive increase in ESR and loss of capacitance at sub-zero temperatures, the T551B827K006AH maintains high capacitance retention and stable ESR down to -55°C. This ensures that power-on reset circuits and bulk decoupling rails function correctly immediately upon startup in arctic or high-altitude environments.
What should be considered regarding the RoHS non-compliant status of the T551B827K006AH during the component selection process?
The T551B827K006AH is RoHS non-compliant because it typically contains lead (Pb) in the solder or finish, which is often preferred in military and aerospace sectors to prevent tin whiskering. Design engineers must verify that their end-product falls under an authorized exemption for lead-containing components. If the project requires full RoHS compliance for commercial consumer markets, the T551B827K006AH would not be suitable, and a lead-free alternative from the KEMET T520 or T540 series might be required, though these may offer different mechanical and sealing properties.
How is the 2000-hour service life at 85°C for the T551B827K006AH interpreted for long-term infrastructure deployments?
The 2000-hour rating is an accelerated life test at maximum rated conditions. In actual practice, the T551B827K006AH does not have a "wear-out" mechanism like the electrolyte evaporation seen in aluminum cans. By operating the T551B827K006AH at a reduced temperature (e.g., 45°C) and utilizing voltage derating, the expected operational life extends exponentially into decades, making it appropriate for long-lifecycle industrial controllers and infrastructure hardware.

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