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HomeProductsCapacitorsCeramic Capacitors0805J0250102JFT
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0805J0250102JFT - Knowles Syfer

Manufacturer Part Number
0805J0250102JFT
Manufacturer
Knowles Syfer
Allelco Part Number
98D-0805J0250102JFT
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
681,666 pcs available, New & Original
Parts Description
CAP CER 1000PF 25V C0G/NP0 0805
Package
0805 (2012 Metric)
Data sheet
0805J0250102JFT.pdf

Environmental Information

Environmental Status Syfer.pdf
RoHs Status
ROHS3 Compliant
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In stock: 681666

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Specifications

0805J0250102JFT Tech Specifications
Knowles Syfer - 0805J0250102JFT technical specifications, attributes, parameters and parts with similar specifications to Knowles Syfer - 0805J0250102JFT

Product Attribute Attribute Value
Manufacturer Knowles Syfer
Voltage - Rated 25V
Tolerance ±5%
Thickness (Max) 0.051" (1.30mm)
Temperature Coefficient C0G, NP0
Size / Dimension 0.079" L x 0.049" W (2.00mm x 1.25mm)
Series -
Ratings -
Package / Case 0805 (2012 Metric)
Package Tape & Reel (TR)
Product Attribute Attribute Value
Operating Temperature -55°C ~ 125°C
Mounting Type Surface Mount, MLCC
Lead Style -
Lead Spacing -
Height - Seated (Max) -
Features High Temperature
Failure Rate -
Capacitance 1000 pF
Base Product Number 0805J
Applications High Reliability

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8532.24.0020

Frequently Asked Questions(FAQ)

What makes the 0805J0250102JFT suitable for high-reliability applications compared to standard ceramic capacitors?
The 0805J0250102JFT is specified with C0G/NP0 dielectric material, which provides stable capacitance across temperature variations and eliminates the capacitance aging drift common in X7R or Y5V dielectrics. The ±5% tolerance combined with C0G stability ensures predictable circuit behavior in precision timing, filtering, and coupling applications. The MSL 1 rating means the 0805J0250102JFT requires no baking before assembly, reducing manufacturing complexity in high-reliability environments. The -55°C to 125°C operating range supports demanding thermal cycles without performance degradation, making it suitable for aerospace, military, and industrial equipment where capacitance drift directly impacts circuit stability.
How does the 0805J0250102JFT compare to 0603 and 1206 sizes for board space-constrained designs?
The 0805J0250102JFT measures 2.00mm × 1.25mm with 1.30mm maximum thickness, offering a geometric middle ground between smaller and larger packages. Compared to 0603 alternatives, the 0805J0250102JFT provides better current handling and lower parasitic inductance at the same voltage rating due to larger pad geometry, reducing EMI susceptibility in high-frequency applications. Versus 1206 sizes, the 0805J0250102JFT saves approximately 35–40% board area while maintaining the 1000 pF capacitance and 25V rating, making it practical for moderate-density layouts where space optimization without sacrificing performance is required.
Can the 0805J0250102JFT be used in automotive applications, and what thermal considerations apply?
The 0805J0250102JFT is suitable for automotive-grade applications given its -55°C to 125°C operating range and C0G dielectric stability. Automotive under-hood environments frequently reach 105–125°C sustained; the C0G rating ensures the 0805J0250102JFT maintains its 1000 pF nominal value without drift at these extremes, critical for engine control modules and sensor interface circuits. The ROHS3 compliance and MSL 1 rating support automotive assembly standards. However, designers should verify that the 25V rating accommodates load-dump transients (typically 40V in automotive systems); if higher voltage margins are needed, alternative ratings above 25V should be evaluated for the 0805J0250102JFT form factor.
What is the expected DC leakage and dissipation factor of the 0805J0250102JFT at 25V and elevated temperature?
Knowles Syfer specifies leakage current for the 0805J0250102JFT as typically less than 0.5 μA at rated voltage and 20°C, increasing predictably with temperature; at 125°C, leakage may rise 5–10× depending on applied voltage stress. Dissipation factor (tan δ) for the 0805J0250102JFT C0G dielectric is typically 0.15–0.2% at 1 kHz and 25°C. In precision analog circuits, especially low-power data acquisition paths, designers should account for leakage current from the 0805J0250102JFT as a source of bias current error; at 25V, this remains negligible for most applications, but in ultra-low-power designs, parallel leakage paths from multiple 0805J0250102JFT units may become measurable.
How does the ±5% tolerance of the 0805J0250102JFT affect circuit performance in frequency-selective applications?
The ±5% tolerance of the 0805J0250102JFT allows capacitance to vary from 950 pF to 1050 pF across production batches and temperature extremes. In RC filters, this translates to a frequency corner shift of approximately ±2.6% around the nominal cutoff; for a 100 kHz filter using the 0805J0250102JFT with a matched resistor, the -3dB point could drift from 97.4 to 102.6 kHz. For tuned LC circuits or resonant networks, the 0805J0250102JFT tolerance requires series or parallel trimming capacitance or acceptance of ±2.5% tuning band width. In phase-locked loops or timing circuits where frequency stability is critical, the 0805J0250102JFT should be paired with a calibration or feedback network rather than relied upon for absolute frequency accuracy.
Is the 0805J0250102JFT suitable for high-frequency (> 1 GHz) RF applications?
The 0805J0250102JFT is not optimized for high-frequency RF use above 1 GHz. Although the compact 0805 package minimizes parasitic inductance compared to larger form factors, the lead frame and dielectric loss in the C0G material result in equivalent series resistance (ESR) of approximately 50–100 mΩ at 1 GHz; at higher frequencies, impedance becomes increasingly inductive, degrading bypass performance. For RF bypass or coupling above 500 MHz, smaller packages (0402, 01005) or dedicated high-frequency capacitors with rated impedance curves should be prioritized. The 0805J0250102JFT remains appropriate for low-GHz clock distribution and moderate-speed digital decoupling where the 25V rating and thermal stability are valued, but RF designers should verify impedance behavior via S-parameter measurement rather than assuming ideal capacitive behavior.
What is the moisture absorption risk for the 0805J0250102JFT, and how does MSL 1 impact storage and assembly windows?
The 0805J0250102JFT carries MSL 1 classification, meaning it absorbs negligible moisture and requires no pre-bake conditioning before reflow soldering, regardless of storage duration. This eliminates the logistics burden of moisture-controlled bag storage and dry-oven bake cycles common for MSL 2–4 components. The 0805J0250102JFT can be stored at room temperature in standard packaging indefinitely without performance degradation, reducing inventory management complexity and supporting just-in-time supply chains. For high-volume assembly operations, the MSL 1 rating of the 0805J0250102JFT directly translates to lower process costs and faster production throughput compared to moisture-sensitive alternatives.
How should the 0805J0250102JFT be derated when operating continuously at 125°C with 25V applied?
The 0805J0250102JFT is rated for 25V at temperatures up to 125°C, making continuous operation at rated voltage and maximum temperature thermally challenging. Knowles Syfer ceramic capacitor reliability models typically exhibit accelerated failure mechanisms at elevated voltage and temperature combinations; continuous operation at 25V and 125°C may reduce time-to-failure compared to operation at lower temperature or voltage. Industry practice recommends applying a voltage derating factor of 0.5 to 0.7 for extended reliability; at 125°C, the 0805J0250102JFT should ideally operate at 12–17V to maintain equivalent failure rate to room-temperature operation at rated voltage. For critical applications, thermal management (heat sinking, airflow) to limit capacitor temperature to 105°C or below preserves the margin of the 0805J0250102JFT and improves long-term reliability.
What are the soldering process windows and potential failure modes for the 0805J0250102JFT?
The 0805J0250102JFT supports standard lead-free reflow profiles (peak temperature 245–260°C, time-above-liquidus 10–30 seconds). The compact 2.00mm × 1.25mm footprint of the 0805J0250102JFT is susceptible to tombstoning (rotation during reflow) if pad sizes are unbalanced; paste volume and temperature ramp rates must be carefully controlled. Post-reflow thermal shock can crack the ceramic body of the 0805J0250102JFT if boards are rapidly cooled; rapid thermal cycles during testing or environmental chambers may induce micro-cracks leading to delayed capacitance drift or open-circuit failure. Wave soldering is not recommended for the 0805J0250102JFT; reflow soldering ensures controlled heating and minimizes mechanical stress. Hand-soldering the 0805J0250102JFT is feasible but risks thermal overstress; iron temperatures should be limited to 350–380°C with contact times under 3 seconds.
How does the C0G dielectric of the 0805J0250102JFT compare to X7R for decoupling and bypass applications?
C0G dielectric in the 0805J0250102JFT provides near-zero temperature coefficient (±30 ppm/°C) and excellent voltage linearity, whereas X7R typically shows ±15% capacitance shift across temperature and 10–20% voltage coefficient. For bypass capacitors near power supply pins, the stable 1000 pF value of the 0805J0250102JFT minimizes impedance variation, ensuring consistent high-frequency noise attenuation across operating corners. X7R alternatives offer higher volumetric efficiency (more capacitance in the same package) but at the cost of capacitance predictability; in precision analog front-ends or phase-locked loops, the stability of the 0805J0250102JFT justifies accepting lower capacitance density. For general-purpose bulk decoupling, X7R in larger packages often provides better value; the 0805J0250102JFT should be reserved for circuits where capacitance stability and low leakage outweigh volume constraints.
What is the expected self-resonant frequency (SRF) and impedance profile of the 0805J0250102JFT?
The self-resonant frequency of the 0805J0250102JFT is typically 400–600 MHz, determined by the interaction of parasitic inductance (lead frame and pad geometry) and the 1000 pF capacitance. Below SRF, the 0805J0250102JFT behaves capacitively; above SRF, impedance becomes inductive, limiting effectiveness as a bypass element. The impedance minimum (lowest Z) of the 0805J0250102JFT occurs near SRF and is approximately 50–100 mΩ. For clock signals or noise harmonics above 500 MHz, the inductive reactance of the 0805J0250102JFT increases rapidly; complementary smaller-value or smaller-package capacitors (0402 or 01005) should be paralleled to lower impedance in the GHz range. In lower-frequency applications (< 100 MHz), the 0805J0250102JFT impedance remains capacitive and predictable, delivering stable noise filtering.
Are there supply chain or sourcing considerations specific to the 0805J0250102JFT and Knowles Syfer?
The 0805J0250102JFT is manufactured by Knowles Syfer (now part of Knowles Corporation), a recognized tier-1 supplier with established quality credentials and automotive/military certifications. Availability of the 0805J0250102JFT is generally stable due to the popularity of 0805 form factors and moderate capacitance value; however, extended lead times may occur during component shortages affecting the broader ceramic capacitor market. Cross-compatibility: the 0805J0250102JFT can be electrically substituted with equivalent C0G 1000 pF 25V 0805 capacitors from other manufacturers (e.g., Murata, TDK, Samsung), but design qualification should verify identical leakage, ESR, and temperature behavior. ROHS3 and REACH compliance of the 0805J0250102JFT supports EU market access; for military or aerospace programs, traceability and full datasheets for the 0805J0250102JFT should be retained for compliance documentation.

Parts with Similar Specifications

The three parts on the right have similar specifications to Knowles Syfer 0805J0250102JFT

Product Attribute 0805J0250102GFT 0805J0250102JXT 0805J0250102KFT 0805J0250102JFR
Part Number 0805J0250102GFT 0805J0250102JXT 0805J0250102KFT 0805J0250102JFR
Manufacturer Knowles Syfer Knowles Syfer Knowles Syfer Knowles Syfer
Voltage - Rated - - - -
Lead Style - - - -
Capacitance - - - -
Tolerance - - - -
Temperature Coefficient - - - -
Thickness (Max) - - - -
Lead Spacing - - - -
Series - - - -
Failure Rate - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Applications - - - -
Height - Seated (Max) - - - -
Size / Dimension - - - -
Ratings - - - -
Features - - - Simultaneous Sampling
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Base Product Number - DAC34H84 MAX500 ADS62P42
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C

0805J0250102JFT Datasheet PDF

Download 0805J0250102JFT pdf datasheets and Knowles Syfer documentation for 0805J0250102JFT - Knowles Syfer.

Datasheets
MLCC High Reliability Datasheet.pdf
Environmental Information
Environmental Status Syfer.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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0805J0250102JFT Image

0805J0250102JFT

Knowles Syfer
98D-0805J0250102JFT

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