Product Details:
Payment & Shipping Terms:
|
| Other Name: | Monolithic Ceramic Capacitors | Rated Temperature: | 85℃ |
|---|---|---|---|
| Capacitance Range: | 1pF~14.7μF | Dielectric Type: | NPO;X7R;Y5V;Z5U |
| Upper Category Temperature: | 105℃ | Package: | Tape & Reel |
| Highlight: | high voltage ceramic capacitors,multilayer ceramic capacitor |
||
Radial leaded multilayer monolithic ceramic capacitor CT4 NPO X7R
Description:
A ceramic capacitor uses a ceramic material as the dielectric. Ceramics were one of the first materials to be used in the producion of capacitors, as it was a known insulator. Many geometries were used in ceramic capacitors, of which some, like ceramic tubular capacitors and barrier layer capacitors are obsolete today due to their size, parasitic effects or electrical characteristics. The types of ceramic capacitors most often used in modern electronics are the multi-layer ceramic capacitor, otherwise named ceramic multi-layer chip capacitor (MLCC) and the ceramic disc capacitor. MLCCs are the most produced capacitors with a quantity of approximately 1000 billion devices per year. They are made in SMD (surface-mounted) technology and are widely used due to their small size. Ceramic capacitors are usually made with very small capacitance values, typically between 1nF and 1µF, although values up to 100µF are possible. Ceramic capacitors are also very small in size and have a low maximum rated voltage. They are not polarized, which means that they may be safely connected to an AC source. Ceramic capacitors have a great frequency response due to low parasitic effects such as resistance or inductance.
Features:
• Miniature size, wide capacitance, tape and reel packaging available for auto-placement
• Coating by epoxy resin, creates the excellent humidity resistance and preventsbody from damaging during soldering and washing.
| T.C. | NPO/COG | X7R | Y5V | Z5U |
| Dielectric type | Stable class Ⅰ dielectric | Stable class Ⅱ dielectric | ||
| Electrical properties | With negligible dependence of electrical properties on temperature, voltage, frequency and time. | With predictable change of properties with temperature, voltage, frequency and time, this dielectric is ferroelectric and offers higher capacitance ranges than class Ⅰ. | With high twist dielectric constant and greater variation of properties with temperature and test conditions, very high capacitance per unit volume. | |
| Application | Use in circuits requiring stable performance | Use as blocking, coupling, by-passing discriminating element. | Suited for by-passing and coupling application such as store power and memory circuit. | |
| Capacitance range | 1pf---10nF | 100pf---5uF | 1nF---14.7uF | |
| Operating temperature |
0±30ppm/℃ -55℃~+125℃ |
±15% -55℃~+125℃ |
±30%~80% -25℃~+85℃ |
±22%~56% -10℃~+85℃ |
Electrical Properties Standard
| Item | Test standard | ||
| NPO | X7R | Z5U,Y5V | |
| Capacitance | Within the tolerance | Within the tolerance | Within the tolerance |
| Dissipation factor | ≤0.15% | ≤3.5% |
≤5.0%(below 220nF) ≤7.0%(220nF~470nF) |
| Insulation resistance |
C≤10nF IR>10000MΩ； C>10nF R.C.>500ΩF |
C≤25nF IR>4000MΩ; C>25nF R.C.>100ΩF |
|
| Voltage test |
Voltage test: 2.5 rated voltage, the charging current may not exceed 50mA. Duration of test: 5 seconds |
||
| Test condition | |||
| Frequency | 1M Hz(C>1000pF, 1KHz) | 1M Hz | |
| Test voltage | 1.0VDC | 0.5VDC | |
| Test Voltage pf IR | The measuring voltage isequal to the rated voltage. The charging current may not exceed 50mA. | ||
| Test environment conditions |
Temperature: 23±2℃, Relatively humidity: Below 75% Notice: If test were processed under No-standard test environment conditions, test result would be error. Please testing capacitors under standard test environment conditions for at least 20mins. then start to test. |
||
Quality item & Reliability inspection
| Item | Test specifications | Test methods | ||||||
| Solderability | Termination area shall be at least 75% covered with a new solder coating | The lead wire of a capacitor shall be dipped into a 25% methanol solution of rosin and then into molten solder of 235℃±5℃ for 2±0.5 seconds, in both cases the depth of dipping is up to about 2.5 to 3.0mm from the root of lead | ||||||
| Resistance to soldering heat | There shall be no evidence of damage or flash over during the test and sign in focus | T.C | △C/C≤ | The lead wire should be immersed into the melted solder of 260℃±5℃,up to about 2.5 to 3.0mm from the main body for 5±0.5 seconds and the specified items shall be measured after leaving for 24±2 hours. | ||||
| NPO | 0.5% or 0.5pF | |||||||
| B | ±10% | |||||||
| D.F. IR value are equal to original datas | Y(F)/E | ±20% | ||||||
| Life test | Appearance | There shall be no evidence of damage or flash over during the test and sign in focus | Condition | NPO | X7R | Y5V | Z5U | |
| Temperature | 125℃ | 85℃ | ||||||
| Value variable |
NPO:≤3%; X7R:≤20%; Y5V:≤30% |
Time | T=1000h | |||||
| Voltage | V=1.5Vr | |||||||
| D.F. | ≤2 times of original data | Recovery time | 24±1h | |||||
| IR | R.C.>25ΩF | |||||||
Contact Person: Mr. Roy Zhang
Tel: 86 574 55878090
Fax: 86-574-55878097
