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Home > Products > Capacitors > Ceramic Capacitors > 1210J1000393JDT
Knowles Syfer
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1210J1000393JDT

In Stock 92516 pcs Reference Price(In US Dollars)
1+
$0.5808
200+
$0.226
500+
$0.2175
1000+
$0.2132
Manufacturer Part Number:
1210J1000393JDT
Manufacturer / Brand
Knowles Syfer
Part of Description:
CAP CER 0.039UF 100V X7R 1210
Datasheets:
1210J1000393JDT.pdf
Lead Free Status / RoHS Status:
Lead free / RoHS Compliant
Stock Condition:
New original, 92516 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number 1210J1000393JDT
Manufacturer / Brand Knowles Syfer
Stock Quantity 92516 pcs Stock
Category Capacitors > Ceramic Capacitors
Description CAP CER 0.039UF 100V X7R 1210
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Voltage - Rated 100V
Tolerance ±5%
Thickness (Max) 0.079" (2.00mm)
Temperature Coefficient X7R
Standard Package 2,000
Size / Dimension 0.126" L x 0.098" W (3.20mm x 2.50mm)
Series -
Ratings -
Part Status Active
Packaging Tape & Reel (TR)
Package / Case 1210 (3225 Metric)
Operating Temperature -55°C ~ 125°C
Mounting Type Surface Mount, MLCC
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Manufacturer Standard Lead Time 8 Weeks
Lead Style -
Lead Spacing -
Lead Free Status / RoHS Status Lead free / RoHS Compliant
Height - Seated (Max) -
Features High Temperature
Failure Rate -
Detailed Description 0.039µF ±5% 100V Ceramic Capacitor X7R 1210 (3225 Metric)
Capacitance 0.039µF
Applications High Reliability

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: PayPal@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

How does the DC bias effect impact the effective capacitance of the 1210J1000393JDT when operating near its 100V rated limit?
Like most X7R multilayer ceramic capacitors, the 1210J1000393JDT exhibits a drop in effective capacitance as the applied DC voltage increases. At the full 100V rating, the actual capacitance may be significantly lower than the nominal 0.039 µF due to the polarization of the dielectric. For precision applications such as analog filtering or timing, designers should evaluate the capacitance-vs-voltage curve to ensure the circuit remains within functional limits under high-voltage bias.
Can I substitute the 1210J1000393JDT with a standard 10% tolerance X7R capacitor in a feedback loop?
The 1210J1000393JDT features a tight ±5% tolerance, which is uncommon for general-purpose X7R dielectrics. Replacing this Knowles Syfer part with a standard ±10% or ±20% component may result in excessive variance in control loop stability or filter cutoff frequencies. If the design utilizes the 5% tolerance to maintain tight system performance across production lots, a standard tolerance alternative could lead to yield issues or out-of-spec performance.
What are the risks of mechanical cracking for the 1210J1000393JDT in high-vibration industrial environments?
The 1210 (3225 Metric) package size of the 1210J1000393JDT is more susceptible to board-flex stress than smaller 0603 or 0805 footprints. In environments with high mechanical vibration or thermal cycling, the solder joints can transfer strain to the ceramic body, potentially causing cracks. Knowles Syfer often designs these high-reliability parts with robust termination structures to mitigate this, but designers should still prioritize proper PCB orientation and consider using stress-relief slots if the board is prone to bending.
Is the 1210J1000393JDT appropriate for use in the signal path of high-fidelity audio equipment?
While the 1210J1000393JDT is rated for high reliability, the X7R dielectric is ferroelectric and can exhibit piezoelectric effects. In audio signal paths, this may translate into microphonic noise or voltage-coefficient-induced distortion. For sensitive analog signals where signal purity is the primary constraint, a C0G/NP0 dielectric would be a more stable choice, although the 1210J1000393JDT remains an excellent candidate for power decoupling and DC blocking where its high volumetric efficiency is required.
How does the "High Temperature" feature of the 1210J1000393JDT influence its lifespan in 24/7 industrial deployments?
The 1210J1000393JDT is engineered to operate reliably up to 125°C. In long-term industrial use, operating a capacitor near its maximum temperature accelerates the aging process of the X7R dielectric, leading to a gradual decline in capacitance over years of service. However, because this model is part of Knowles Syfer’s high-reliability range, it is manufactured with higher-grade materials that provide a lower failure rate (FIT) compared to standard commercial-grade MLCCs under the same thermal stress.
What should be considered when replacing an older 1210J1000393JDT with a newer production lot in a legacy system?
When sourcing a replacement 1210J1000393JDT for legacy maintenance, verify that the 2.00mm maximum thickness remains compatible with any existing low-profile enclosures or neighboring component clearances. Additionally, while the electrical parameters are consistent, Knowles Syfer may have updated the termination finishes to comply with the latest RoHS3 standards (as indicated by the "J" suffix in some configurations), which is fully compatible with standard lead-free reflow profiles.
Can the 1210J1000393JDT handle high-frequency ripple current in a 48V DC-DC converter snubber circuit?
The 1210J1000393JDT is rated for 100V, providing a safe margin for 48V systems, but its ability to handle ripple current depends on its Equivalent Series Resistance (ESR). At high frequencies, the ESR of an X7R capacitor leads to self-heating. Designers must calculate the power dissipation based on the expected ripple current and ensure the temperature rise does not exceed the 125°C operating limit. For extremely high-frequency switching, the self-resonant frequency (SRF) of the 1210 package must also be considered to avoid inductive behavior.

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