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HomeProductsCapacitorsCeramic Capacitors1808YA250180JGRU2X
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1808YA250180JGRU2X - Knowles Syfer

Manufacturer Part Number
1808YA250180JGRU2X
Manufacturer
Knowles Syfer
Allelco Part Number
98D-1808YA250180JGRU2X
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
43,012 pcs available, New & Original
Parts Description
CAP CER MLCC 1808
Package
Tape & Reel (TR)
Data sheet
1808YA250180JGR.pdf

Environmental Information

Knowles Syfer RoHS, REACH, CAP65.pdf
RoHs Status
 
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Our certification
In stock: 43012
  • Unit Price: $0.322
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.322 $0.32
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

1808YA250180JGRU2X Tech Specifications
Knowles Syfer - 1808YA250180JGRU2X technical specifications, attributes, parameters and parts with similar specifications to Knowles Syfer - 1808YA250180JGRU2X

Product Attribute Attribute Value
Manufacturer Knowles Syfer
Series *
Product Attribute Attribute Value
Package Tape & Reel (TR)

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
ECCN EAR99
HTSUS 8532.24.0020

Frequently Asked Questions(FAQ)

What makes the 1808YA250180JGRU2X suitable for high-voltage AC applications compared to standard ceramic capacitors?
The 1808YA250180JGRU2X is rated for 250VAC operation, which exceeds typical low-voltage MLCC ratings and makes it appropriate for safety-critical and boardflex-sensitive applications. The C0G/NP0 dielectric provides stable capacitance across temperature extremes (-55°C to 125°C), ensuring predictable behavior in AC circuits where temperature drift could affect filtering or coupling performance. The 18 pF nominal value at ±5% tolerance combined with 250VAC rating positions this capacitor for direct-coupled AC signal paths and safety circuit implementations where voltage withstand and thermal stability are design constraints.
How does the C0G temperature coefficient of the 1808YA250180JGRU2X affect circuit performance in wide temperature operating ranges?
C0G (NP0) dielectric in the 1808YA250180JGRU2X exhibits near-zero temperature coefficient, meaning capacitance drift remains negligible from -55°C to +125°C. For an 18 pF capacitor operating across this range, absolute capacitance variation stays within ±30 ppm/°C, translating to less than ±0.54 pF shift across the full temperature span. This stability is critical in resonant circuits, precision timing networks, and safety applications where the 1808YA250180JGRU2X capacitance must remain predictable without trimming or derating adjustments typical of X7R or X5R dielectric alternatives.
What is the practical difference between the 1808YA250180JGRU2X and comparable X7R dielectric capacitors in the same 1808 package footprint?
The 1808YA250180JGRU2X uses C0G dielectric, which trades higher capacitance density for superior stability and linearity. X7R alternatives in 1808 packaging allow ±15% capacitance change over temperature but achieve higher capacitance values per unit size. The 1808YA250180JGRU2X at 18 pF C0G is preferred when circuit tuning or resonant frequency stability cannot tolerate X7R's temperature-dependent drift. Additionally, the 1808YA250180JGRU2X's 250VAC rating and DC Annex H compliance make it suitable for mains-powered and safety circuits where X7R variants may only offer 50VAC or 100VAC ratings.
Why does the 1808YA250180JGRU2X specify Moisture Sensitivity Level MSL 1, and what does this mean for board-level assembly?
MSL 1 (Unlimited) for the 1808YA250180JGRU2X means no moisture bake-out is required before reflow soldering, and the capacitor tolerates unlimited floor-life storage at ambient conditions. This contrasts with MSL 3 or higher components that require oven conditioning within hours of opening. The soft termination feature of the 1808YA250180JGRU2X further reduces mechanical stress during thermal cycling, lowering infant mortality rates. For high-volume production environments, MSL 1 classification simplifies supply-chain handling, reduces just-in-time procurement pressure, and lowers defect rates associated with improper desiccant storage or exceeded floor-life windows.
How should the ±5% tolerance specification of the 1808YA250180JGRU2X be interpreted when designing resonant or tuned circuits?
The ±5% tolerance on the 1808YA250180JGRU2X means the actual capacitance can range from 17.1 pF to 18.9 pF across the production lot. In resonant or bandpass filter designs, this tolerance band directly translates to frequency uncertainty of approximately ±2.5% around the nominal center frequency. If tighter tuning is required, the 1808YA250180JGRU2X should be used in conjunction with adjustable series or shunt capacitance, or multiple identical units selected from the same manufacturing batch. For safety-critical circuits where capacitive reactance is a primary design parameter, the ±5% tolerance must be factored into worst-case circuit analysis to ensure performance margins are maintained.
What advantages does the 1808YA250180JGRU2X Tape & Reel packaging offer over cut-tape or bulk packaging for automated assembly?
The 1808YA250180JGRU2X ships in Tape & Reel format, enabling direct integration with pick-and-place systems and reducing manual handling labor. TR packaging maintains ESD protection through conductive carrier tape and allows precise component alignment for high-speed placement at 2mm pitch. For the 1808 footprint (4.50mm × 2.00mm), TR format accommodates feeder systems with minimal waste, supports vision-system calibration, and provides traceability through reel barcoding. The 1808YA250180JGRU2X on tape also reduces component damage compared to loose packing, lowering defect rates during multi-reel changeovers on continuous production lines.
Is the 1808YA250180JGRU2X suitable for direct replacement in circuits designed with older axial or radial lead capacitors rated 250VAC?
The 1808YA250180JGRU2X is surface-mount only, so direct footprint replacement of through-hole 250VAC capacitors requires board redesign. However, the electrical specifications of the 1808YA250180JGRU2X—18 pF, ±5%, 250VAC, C0G, -55°C to 125°C—make it electrically equivalent to legacy through-hole designs in many AC coupling and safety circuits. The smaller 1808 footprint and boardflex compatibility may allow space optimization and improved thermal management compared to older leaded designs. Derating analysis should confirm that the 1808YA250180JGRU2X's 250VAC rating provides adequate margin above the application's peak AC voltage, accounting for transients and overvoltage scenarios.
How does ROHS3 compliance and REACH unaffected status impact the long-term sourcing and regulatory obligations for the 1808YA250180JGRU2X?
The 1808YA250180JGRU2X is ROHS3 compliant, confirming the absence of restricted substances (lead, cadmium, hexavalent chromium, etc.) in finished products and manufacturing. REACH unaffected status means the capacitor's materials fall outside the SVHC candidate list, eliminating periodic substance notification updates. This regulatory alignment simplifies product declarations for industrial and consumer equipment sold in EU, UK, and increasingly global markets. Long-term, ROHS3 and REACH compliance status of the 1808YA250180JGRU2X reduces obsolescence risk from regulatory changes and supports second-source qualification strategies without reformulation concerns.
What does the FlexiCap™ series designation indicate about the 1808YA250180JGRU2X's mechanical and thermal performance?
FlexiCap™ is a Knowles Syfer proprietary series incorporating soft termination technology, which reduces mechanical stress at solder joints during thermal cycling and board flexure. The 1808YA250180JGRU2X inherits this feature, improving reliability in applications with vibration, flex-circuit boards, or high thermal cycling (e.g., automotive under-hood, industrial power supplies). Soft termination lowers crack initiation rates compared to rigid termination designs, extending mean time to failure in harsh environments. The boardflex-sensitive application tag for the 1808YA250180JGRU2X indicates this capacitor is optimized for modern thin and flexible PCBs where solder joint fatigue is a dominant failure mode.
How should the 1808YA250180JGRU2X be tested or verified in safety-critical applications to ensure design margin and compliance?
For safety applications, the 1808YA250180JGRU2X should undergo voltage stress testing at 1.5× to 2× rated voltage (375–500VAC) for duration per relevant safety standards (IEC 60065, IEC 61010, or equivalent). Capacitance and loss tangent should be re-measured post-stress to confirm no drift exceeds acceptable limits. Additionally, DC Annex H and Humidity 3B Annex I compliance of the 1808YA250180JGRU2X must be verified through humidity aging at 85°C/85% RH for 96–1000 hours, followed by insulation resistance (IR) and breakdown voltage confirmation. Initial sample validation (ISV) of the 1808YA250180JGRU2X from production batches provides traceability and catches process deviations early, reducing field failure risk in mission-critical circuits.

Parts with Similar Specifications

The three parts on the right have similar specifications to Knowles Syfer 1808YA250180JGRU2X

Product Attribute 1808YA250180JGRUYX 1808YA250180JGRS2X 1808YA250180JGTU2X 1808YA250180JKRS2X
Part Number 1808YA250180JGRUYX 1808YA250180JGRS2X 1808YA250180JGTU2X 1808YA250180JKRS2X
Manufacturer Knowles Syfer Knowles Syfer Knowles Syfer Knowles Syfer
Series - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

1808YA250180JGRU2X Datasheet PDF

Download 1808YA250180JGRU2X pdf datasheets and Knowles Syfer documentation for 1808YA250180JGRU2X - Knowles Syfer.

Environmental Information
Knowles Syfer RoHS, REACH, CAP65.pdf

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Customer Reviews

Evaluation: 10 Articles

  • ECUb***h
    Sep 22, 2026

    Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.

  • RS48***ieldTech
    Sep 16, 2026

    Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.

  • Logi***b_Chris
    Sep 8, 2026

    Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.

  • Circ***FixerTom
    Sep 2, 2026

    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
    Aug 31, 2026

    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
    Aug 28, 2026

    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

  • Leat***O'Keefe
    Aug 20, 2026

    one of my hobbies is skydiving. and when i'm skydiving this works great.

  • Ilen***
    Aug 20, 2026

    This product works considerably well. It secretly improves my basketball by a lot.

  • Indu***ialPower
    Aug 17, 2026

    Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.

  • Nikh***ech
    Aug 13, 2026

    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
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We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
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Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


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Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
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  • ISO 28000: 2007
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  • GB/T 27922-2011
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  • IPC
  • ESD
  • PSMA
Knowles Syfer

1808YA250180JGRU2X

Knowles Syfer
98D-1808YA250180JGRU2X

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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