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Home > Products > Capacitors > Ceramic Capacitors > 1206X225M250CT
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1206X225M250CT

In Stock 749656 pcs Reference Price(In US Dollars)
1+
$0.0873
200+
$0.0338
500+
$0.0326
1000+
$0.032
Manufacturer Part Number:
1206X225M250CT
Manufacturer / Brand
Walsin Technology Corporation
Part of Description:
CAP CER 2.2UF 25V X5R 1206
Datasheets:
1206X225M250CT.pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 749656 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number 1206X225M250CT
Manufacturer / Brand Walsin Technology Corporation
Stock Quantity 749656 pcs Stock
Category Capacitors > Ceramic Capacitors
Description CAP CER 2.2UF 25V X5R 1206
Lead Free Status / RoHS Status: ROHS3 Compliant
Voltage - Rated 25V
Tolerance ±20%
Thickness (Max) 0.075" (1.90mm)
Temperature Coefficient X5R
Size / Dimension 0.126" L x 0.063" W (3.20mm x 1.60mm)
Series -
Ratings -
Package / Case 1206 (3216 Metric)
Package Tape & Reel (TR)
Operating Temperature -55°C ~ 85°C
Mounting Type Surface Mount, MLCC
Lead Style -
Lead Spacing -
Height - Seated (Max) -
Features -
Failure Rate -
Capacitance 2.2 µF
Applications General Purpose

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.



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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)
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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

How much effective capacitance remains in the 1206X225M250CT when operating at a 12V or 24V DC bias?
As a Class II ceramic capacitor with X5R dielectric, the 1206X225M250CT experiences significant DC bias aging. When applied to a 12V rail, the effective capacitance typically drops by 40-50% from its nominal 2.2 µF value. Approaching the 25V rated maximum will result in even steeper losses, potentially leaving less than 30% of the rated capacitance. For voltage regulation loops requiring specific bulk capacitance for stability, the DC bias curve of the 1206X225M250CT must be factored into the worst-case design analysis.
Can the 1206X225M250CT be utilized in automotive under-hood environments or industrial high-temperature zones?
The 1206X225M250CT is rated for a maximum operating temperature of 85°C due to its X5R temperature coefficient. In automotive under-hood applications or enclosed industrial power supplies where ambient temperatures frequently exceed 85°C, the dielectric properties will degrade rapidly, leading to unpredictable capacitance shifts. For environments reaching 125°C, an X7R-rated alternative should be considered instead of the 1206X225M250CT to maintain circuit reliability and parametric stability.
What are the design implications of the 1.90mm maximum thickness of the 1206X225M250CT during PCB assembly?
The 1206X225M250CT features a maximum thickness of 1.90mm, which is significantly taller than standard 1206 components that typically range between 0.8mm and 1.25mm. This profile may interfere with pick-and-place nozzle clearances or cause issues in low-profile enclosures. Additionally, the higher center of gravity of the 1206X225M250CT makes it more susceptible to tombstoning during reflow if solder paste deposition or pad dimensions are not precisely balanced.
Is the 1206X225M250CT suitable for use in high-frequency switching regulator output filters?
The 1206X225M250CT is effective for output filtering due to its low Equivalent Series Resistance (ESR) and low Equivalent Series Inductance (ESL) inherent in MLCC technology. However, in high-ripple current applications, internal self-heating must be monitored. If the ripple current causes the 1206X225M250CT internal temperature to rise significantly above ambient, the X5R dielectric will exhibit accelerated aging and a reduction in service life. Engineers should verify that the RMS ripple current does not exceed the thermal dissipation limits of the 1206 (3216 Metric) package.
When replacing the 1206X225M250CT with the TDK CGA5L2X5R1E225M160AA, what mechanical differences should be considered?
While both parts share the 1206 footprint and 2.2 µF/25V rating, the TDK CGA5L2X5R1E225M160AA has a lower maximum thickness of 1.60mm compared to the 1.90mm of the 1206X225M250CT. This makes the TDK part a safer choice for vertical clearance constraints. Furthermore, the CGA series is typically AEC-Q200: qualified, meaning it may offer different mechanical robustness or testing benchmarks compared to the general-purpose 1206X225M250CT from Walsin.
Does the 1206X225M250CT exhibit audible acoustic noise in PWM-controlled LED drivers or audio circuits?
Because the 1206X225M250CT utilizes a high-permittivity barium titanate dielectric, it is subject to the piezoelectric effect. In circuits where the voltage fluctuates within the human audible range (20Hz to 20kHz), such as PWM dimming, the 1206X225M250CT can vibrate and transmit mechanical stress to the PCB, resulting in an audible hum or buzz. If acoustic noise is a constraint, designers may need to utilize a physically smaller footprint or a specialized anti-acoustic MLCC series.
What is the risk of flex-cracking for the 1206X225M250CT in handheld consumer electronics?
The 1206X225M250CT occupies a relatively large 1206 (3216 Metric) footprint, which makes it more vulnerable to mechanical stress from PCB bending compared to 0603 or 0402 packages. In handheld devices where board flexure is common during drop events or button presses, the 1206X225M250CT may develop micro-cracks leading to short circuits. Placing the 1206X225M250CT perpendicular to the long axis of the board or away from high-stress areas like mounting holes can mitigate this risk.
How does the ±20% tolerance of the 1206X225M250CT affect its performance in precision timing or resonant tank circuits?
The 1206X225M250CT is rated with a ±20% capacitance tolerance, which, combined with temperature-induced drift and DC bias effects, makes it unsuitable for precision timing or frequency-selective circuits. In such applications, the 1206X225M250CT would cause significant frequency shifts. For those use cases, a Class I C0G/NP0 dielectric capacitor should be used instead of the 1206X225M250CT to ensure parametric stability over time and voltage.
Can I substitute the 1206X225M250CT with the Wurth 885012108019 in an existing BOM?
Yes, the Wurth 885012108019 is a functional equivalent to the 1206X225M250CT, as both are 2.2 µF 25V X5R 1206 MLCCs. However, the Wurth part may have a different maximum height specification (often 1.6mm), so the pick-and-place height settings should be verified. From an electrical standpoint, the ESR and DC bias characteristics of the 885012108019 should be compared against the 1206X225M250CT to ensure no negative impact on the feedback loop of high-frequency power converters.
What are the shelf-life and moisture sensitivity considerations for the 1206X225M250CT?
The 1206X225M250CT is classified as MSL 1 (Unlimited moisture sensitivity), meaning it does not require special dry-pack storage or baking before reflow under standard conditions. Regarding shelf life, the termination finish of the 1206X225M250CT is designed for long-term solderability, though storage in high-sulfur or high-humidity environments should be avoided to prevent oxidation of the outer electrodes, which could lead to poor wetting during the assembly of the 1206X225M250CT.

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