Common capacitor reviews

SMD aluminum electrolytic capacitor

Chip ceramic capacitor

Tantalum capacitor

Name: Polyester (Polyester) Capacitor (CL)
symbol:
Capacity: 40p--4u
Rated voltage: 63--630V
Main features: small size, large capacity, heat and humidity resistance, poor stability Application: low frequency circuit with low stability and loss requirements

Name: Polystyrene Capacitor (CB)
symbol:
Capacity: 10p--1u
Rated voltage: 100V--30KV
Main features: stable, low loss, large size applications: circuits with high requirements for stability and loss

Name: Polypropylene Capacitor (CBB)
symbol:
Capacity: 1000p--10u
Rated voltage: 63--2000V
Main features: performance similar to polystyrene but small size, slightly poorer performance Application: replace most polystyrene or mica capacitors for higher requirements

Name: Mica Capacitor (CY)
symbol:
Capacitance: 10p--0. 1u
Rated voltage: 100V--7kV
Main features: high stability, high reliability, small temperature coefficient application: high frequency oscillation, pulse and other high requirements

Name: High frequency ceramic capacitor (CC)
symbol:
Capacity: 1--6800p
Rated voltage: 63--500V
Main features: low frequency loss, good stability Application: high frequency circuit

Name: Low frequency ceramic capacitor (CT)
symbol:
Capacity: 10p--4. 7u
Rated voltage: 50V--100V
Main features: small size, low price, large loss, poor stability Application: low frequency circuit

Name: Glass Glaze Capacitor (CI)
symbol:
Capacitance: 10p--0. 1u
Rated voltage: 63--400V
Main features: good stability, low loss, high temperature resistance (200 degrees)
Applications: Pulse, Coupling, Bypass, etc.

Name: Aluminum Electrolytic Capacitor Symbol:
Capacity: 0. 47--10000u
Rated voltage: 6. 3--450V
Main features: small size, large capacity, large loss, large leakage application: power supply filtering, low frequency coupling, decoupling, bypass, etc.

Name: Electrolytic Capacitor (CA) Tantalum Electrolytic Capacitor (CN)
symbol:
Capacity: 0. 1--1000u
Rated voltage: 6. 3--125V
Main features: Loss and leakage are less than aluminum electrolytic capacitors: replace aluminum electrolytic capacitors in circuits with high requirements

Name: Air medium variable capacitor symbol:
Variable capacitance: 100--1500p
Main features: low loss, high efficiency; can be made into linear, linear wavelength, linear frequency and logarithmic applications according to requirements: electronic equipment, radio and television equipment, etc.

Name: Thin film dielectric variable capacitor symbol:
Variable capacitance: 15-550p
Main features: small size, light weight; large application of loss than air medium: communication, broadcast receiver, etc.

Name: Film medium trimmer capacitor symbol:
Variable capacitance: 1--29p
Main features: large loss, small size application: circuit breaker, electronic instrument and other circuits for circuit compensation

Name: Ceramic medium trimmer capacitor symbol:
Variable capacitance: 0. 3--22p
Main features: Small loss, small size Applications: Precision tuned high frequency oscillation circuit

The biggest disadvantage of monolithic capacitor is that the temperature coefficient is very high. The stability of the oscillator can't stand. We make a 555 oscillator, the capacitor is just next to the 7805. After booting, use the oscilloscope to see the frequency, and watch it slowly. Change, and later changed to polyester capacitors is much better.
Features of monolithic capacitors:
Large capacity, small size, high reliability, stable capacity, high temperature and moisture resistance.
Application range:
Widely used in electronic precision instruments. Various small electronic devices are used for resonance, coupling, filtering, and bypassing.
Capacity range:
0.5PF--1UF
Withstand voltage: twice the rated voltage.
It is said that monolith is also called multi-layer ceramic capacitor, which is divided into two types. Type 1 performance is quite good, but the capacity is small, generally less than 0. 2U, another is called
Type II, large capacity, but the performance is average.

In terms of warm drift:
Monoliths are positive temperature enthalpy +130 or so, CBB is a negative temperature coefficient -230, used in parallel with appropriate proportions, can make the temperature drift to a small.
In terms of price:
é’½, tantalum capacitor is the most expensive, monolithic, CBB is cheaper, porcelain is the lowest, but there is a kind of high-frequency zero-temperature drift black point porcelain is slightly more expensive. Mica capacitor Q is higher, also slightly more expensive.