WQS-OSC7050 SMD crystal oscillator has wide frequency, compact and thin metal package, suitable for reflow soldering, low noise, low power consumption, built-in CMOS device integrated circuit with tri-state function, 5V and 3.3V power supply mode. Very suitable for personal computers, notebooks, PCMCIA cards, PDAs, portable products, wireless network cards, pagers, Bluetooth, wireless, communication devices, Internet of Things, smart equipment, automotive electronics, etc.
https://www.weetcap.com/Crystals-Oscillators/WEET-SMD-Oscillator-WQS-OSC7050.html

WQS-OSC7050 crystal oscillator product parameters:
 Frequency range: 1.000MHz ~ 160.000MHz
 Adjustment frequency difference: +/-30ppm,  +/-50ppm
 Load voltage: 1.8V, 2.5V, 3.3V, 5.0V)
 Operating temperature: -20℃ ~ +70℃, -40℃ ~ +85℃ 

What is the difference between WQS-SMD7050 crystaland WQS-OSC7050 oscillator?
 "SMD" is the abbreviation of Surface-Mount Device, and "7050" refers to the size of this crystal, which is 7.0 x 5.0 mm.

Usually, WQS-SMD7050 crystal refers to crystal resonator (passive crystal), while WQS-OSC7050 oscillator refers to crystal oscillator (active oscillator). As the clock source in electronic devices, WQS-SMD7050 crystal and WQS-OSC7050 oscillator provide accurate clock signals for electronic devices.

In electronics, circuits containing transistor components are usually called "active circuits" (such as active speakers, active filters, etc.), while circuits composed only of resistors and capacitors are called "passive circuits". The crystal in computers are also divided into two types: passive crystal and active crystal oscillator. A passive crystal is a non-polar component with 2 pins. It needs the help of a clock circuit to generate an oscillation signal and cannot oscillate by itself. An active crystal oscillator has 4 pins and is a complete oscillator, which, in addition to a quartz crystal, also contains transistors and resistors and capacitors.

The WQS-OSC5032, a product of WEE Technology Company Limited, a Chinese high-quality brand crystal oscillator manufacturer, is a small SMD sealed clock crystal oscillator with high stability, low jitter, low power consumption and other characteristics. Its supply voltage range is 1.8V-5.0V (1.8V, 2.5V, 3.3V, 5.0V). The storage temperature range is -55~+125 ℃, and the output frequency range is 1.000-160.000MHz. It is mainly used in wireless communication devices and PDAs.

WQS-OSC5032 Features:
 1. SMD metal package
 2. High precision and high stability
 3. Excellent environmental resistance
 4. Green and environmentally friendly products, RoHS and Pb Free certified
 5. Taping packaging, suitable for automatic installation, meeting the reflow temperature curve requirements of Pb-free soldering
 6. Main application areas: computers, servers, network communications, digital home appliances, industrial detection, etc.

WEE Technology Company Limited focuses on providing one-stop crystal oscillator product solutions. Its main products include Leaded Quartz Crystal, SMD Quartz CCrystal, SMD Crystal Oscillators, 32.768KHz Cylindrical Tuning Fork Crystal, 32.768KHz SMD Tuning Fork Crystal, etc. WEET always adheres to quality as the cornerstone, and in order to meet the high standards of customers, our company actively integrates the supply chain to truly serve every valued customer.

OSC is the abbreviation of Oscillator in English.
 WQS-OSC3225 crystal oscillator usually refers to a crystal oscillator with a package size of 3.2*2.5mm, also known as clock oscillator.
 Unlike resonators that require an oscillation circuit to be built, OSC (oscillator) already contains an oscillation circuit and can output frequency when powered on. The advantages of OSC active crystal oscillator are simple circuit application and stable output frequency. It is mainly used in mid-to-high-end digital smart devices: Bluetooth, wireless, communication devices, Internet of Things, smart equipment, automotive electronics, etc.
https://www.weetcap.com/Crystals-Oscillators/WEET-SMD-Oscillator-WQS-OSC3225.html

Is OSC an active crystal oscillator or a passive crystal oscillator?
 Crystal oscillator belongs to the active series. It is an energy conversion device that can convert DC power into AC power with a certain frequency. The circuit it constitutes is called an oscillation circuit (Oscillation).

Crystal oscillators are generally surface-mount four-pin packages with a clock circuit inside. They only need power to generate oscillation signals (mainly CMOS square waves). Generally divided into several packaging forms such as OSC7050, OSC5032, OSC3225, OSC2520 and OSC2016.

WQS-OSC3225 active crystal oscillator features:
 High precision and high frequency stability
 Compatible with multiple voltages (1.8V, 2.5V, 3.3V, 5.0V)
 Can reach industrial temperature -40℃~+85℃
 Compliant with RoHS standards/Pb Free

WQS-7Z7050 differential crystal/low phase jitter crystal/router crystal, compared with ordinary crysta, the current and voltage can reach low values1.8V, 2.5V, 3.3V, with low voltage, low jitter, low power consumption and other characteristics. As a high-demand, high-tech quartz crystal in the current industry, the differential crystal has the characteristics of low phase and low loss. The differential patch crystal can easily identify small signals when used in products, and can easily and accurately process "bipolar" signals. It is highly immune to external electromagnetic interference (EMI).
https://www.weetcap.com/Crystals-Oscillators/WEET-Differential-Crystal-Oscillator-WQS-7Z7050.html

Many consumers and battery-driven IoT devices use SoC chips, which usually need to be synchronized. Such chips usually have an integrated oscillation circuit inside, and only need to be connected to a quartz lens. At this time, it is more appropriate to choose a crystal (Xtal).

WQS-7Z7050 differential LVPECL/LVDS/HCSL output active crystal is mainly used in optical fiber communication, Gigabit network, serial ATA, SCSI, high-end servers, computer peripherals, PCI-Express, SDH, SONET, broadcast services, mobile communications, base stations, network equipment and other electronic products and applications.

Common points of all crystals:

1. Shock resistance
 Shock resistance means that the product crystal may be damaged under certain conditions, such as falling from the table, hitting, high-altitude throwing or impact during the mounting process. If the product has been impacted, please do not use it, because no matter what kind of crystal product, its internal chip is made of quartz crystal, and falling from high altitude will cause adverse effects on the crystal.
 2. Radiation
 Exposure to radiation can cause product performance to be impaired, so avoid prolonged exposure to sunlight
 3. Chemical/pH environment
 Do not use or store these products in an environment where the pH range may corrode or dissolve the product or packaging materials
 4. Adhesives
 Do not use adhesives that may corrode the packaging materials, terminals, components, glass materials, and vapor deposition materials used in the product. (For example, chlorine-based adhesives may corrode the metal "lid" of a crystal unit, thereby destroying the seal quality and reducing performance.)
 5. Halogen compounds
 Do not use the product in a halogen gas environment. Even small amounts of halogen gas, such as chlorine in the air or in metal parts used for packaging, may cause corrosion. At the same time, do not use any resin that releases halogen gas
 6. Static electricity
 Excessive static electricity may damage the product. Please pay attention to anti-static conditions. Please choose conductive materials for containers and packaging materials. When handling, please use a welding gun and a measurement circuit without high voltage leakage, and perform grounding operations.

The differential crystal oscillator (DXO) is a crystal oscillator that is recognized as high-tech and high-demand in the industry. It means that the output differential signal uses two signals with completely opposite phases to each other, thereby eliminating common-mode noise and producing a higher-performance system. The differential crystal oscillator is generally a six-pin chip crystal oscillator, and the output type is divided into several types, LVDS, LV-PECL, HCSL, with low level, low jitter, low power consumption and other characteristics.

https://www.weetcap.com/Crystals-Oscillators/WEET-Differential-Crystal-Oscillator-WQS-5Z5032.html

With the development of science and technology, the use of differential crystal oscillators is increasing. In addition to the functions of ordinary crystal oscillators, the biggest difference is that the output method is differential signal.

WEET differential crystal oscillator WQS-5Z5032 is a quartz crystal oscillator with a rated frequency of 90.000MHZ to 160.000MHz, a small size of 5.0x3.2mm, a six-pin SMD crystal oscillator, an active crystal oscillator, and a power supply voltage of 1.8V, 2.5V, and 3.3V.

WEET differential crystal oscillator WQS-5Z5032 has the characteristics of small size, light weight, low jitter, low power consumption, low phase, low loss, low energy consumption, low power consumption, low power supply voltage, and high stability. This oscillator can work stably in the temperature range of -20℃ to +70°C/-40℃ to +85℃, and is widely used in 5G communication equipment, automotive multimedia, body electronics, remote controls, space equipment, GPS, anti-theft and disaster prevention devices, security monitoring, etc.

Differential, as the name suggests, is a crystal oscillator that outputs a differential signal. The output differential signal uses two signals with completely opposite phases to eliminate common mode noise. Output Types: LVPECL/LVDS/HCSL.

https://www.weetcap.com/Crystals-Oscillators/WEET-Differential-Crystal-Oscillator-WQS-3Z3225.html

Suitable for Gigabit Ethernet, network switches, network routers, network digital dividers, fiber optic switches, artificial intelligence, 5G intelligent communications, 5G remote transmission, and cloud computing.

The difference between differential oscillators and ordinary crystal oscillators:
 Differential oscillators and ordinary crystal oscillators are common types of oscillators used in the electronics field to generate high-precision clock signals. Although they both share the basic functionality of an oscillator, there are some significant differences in principle, performance, and application.

1. Definition and concepts
 Ordinary crystal oscillator: Ordinary crystal oscillator uses the resonance characteristics of quartz crystal to generate a stable clock signal. Its basic working principle is to generate a signal with a fixed frequency through the mechanical vibration of the crystal. It is widely used in fields such as clock synchronization and data sampling in electronic equipment.

Differential Oscillator: A differential oscillator is a device that uses a differential feedback loop to achieve oscillation. It uses two complementary phase outputs for oscillation, providing better anti-interference performance and noise characteristics. Differential oscillators are commonly used in high-speed communication systems and analog circuits.

2. Working principle
 Ordinary crystal oscillator: The working principle of ordinary crystal oscillator is based on the piezoelectric effect of the crystal. When a voltage is applied to a crystal, mechanical vibrations are generated, which are amplified and fed back to the crystal, forming a stable oscillation loop. Ordinary crystal oscillators have good frequency stability and long-term stability.

Differential Oscillator: A differential oscillator uses two mutually coupled differential feedback loops to achieve oscillation. This design reduces common-mode noise in single-ended oscillators and improves signal quality and immunity to interference. Differential oscillators typically use a differential pair output to provide a cleaner clock signal in high-speed digital or analog systems.

3. Performance characteristics
 Ordinary crystal oscillator:
 High frequency stability, suitable for applications requiring higher frequency accuracy.
 The cost is low and the manufacturing process is relatively simple.
 Strong reliability and good long-term stability.

4, Differential Oscillator:
 It has strong anti-interference performance and is suitable for systems in high-interference environments.
 The output signal quality is higher and the noise is lower.
 Requires more complex design and debugging, and may be more costly.

The AI passive smd quartz crystal WQC-SMD5032 uses a 4P chip metal package and is widely used in Bluetooth headsets, security equipment, smart home appliances, and other AI electronic products.

https://www.weetcap.com/Crystals-Oscillators/WEET-SMD-Quartz-Crystal-WQC-SMD5032.html

AI passive smd quartz crystal SMD5032 features:
 Excellent heat resistance and environmental characteristics, reducing electromagnetic interference
 High frequency stability, high precision
 Wide frequency output range 8MHz~50MHz
 Reel tape packaging, can be used for automatic installation and reflow soldering
 The product is green and environmentally friendly, and has passed RoHS and Pb Free certification

Precautions for the use of passive smd quartz crystal:
 The design of SMT surface mount crystal resonators is compatible with most automatic mounting processes, but some processes may produce excessive impact, which may damage the crystal inside this product. Therefore, please fully test the installation of this product before mass production.
 If the PCB may be warped, please ensure that the degree of warping does not negatively affect the working characteristics or welding conditions of this product.
 Avoid installation and processing by ultrasonic welding, as this method may propagate excessive vibration inside this product, which may become the cause of characteristic deterioration and non-oscillation.

The resonator (Xtal) is a package of a quartz crystal. This chip is cut from a quartz crystal in a certain way and has undergone a series of vacuum operations such as shaping, polishing, electrode plating, and adjustment. It can oscillate at a specified frequency with a very high Q value. Xtal is a passive component and does not contain an oscillating circuit, but is closely connected to the IC chip containing the driving circuit in terms of circuit distribution.

SMD quartz crystal WQC-SMD3225 is a surface-mount quartz crystal, commonly used in sophisticated electronic products; the volume of SMD quartz crystal is much smaller than that of direct-insertion quartz crystal.

WQC-SMD3225 SMD quartz crystal is a device used in electronic equipment. Below are some common parameters, frequency range, characteristics and possible manufacturer information about WQC-SMD3225 quartz crystal.

https://www.weetcap.com/Crystals-Oscillators/WEET-SMD-Quartz-Crystal-WQC-SMD3225.html

1. WQC-SMD3225 crystal parameters:
 Size: 3.2mm x 2.5mm
 Frequency range: 8.000MHz~54.000MHz
 Operating temperature range: -20C~+70C, -40C~+85C
 Frequency tolerance: +10ppm
 Excitation power: 10uW~100uW
 Load capacitance: 60pF~20pF
 Common frequencies include 8MHz, 16MHz, 25MHz, 40MHz, etc.

2. Features of WQC-SMD3225 crystal:
 Miniaturization: WQC-SMD3225 crystal adopts SMD package, which is small in size and suitable for assembly of high-density circuit boards.
 High stability: WQC-SMD3225 crystal has high stability and can maintain stable frequency output over a wide temperature range.
 High precision: The frequency accuracy of WQC-SMD3225 crystal is high, which is suitable for applications with strict time requirements.
 Low power consumption: WQC-SMD3225 quartz crystal has low power consumption characteristics, which helps to extend the battery life of electronic devices.

3. Application of WQC-SMD3225 quartz crystal
 WQC-SMD3225 quartz crystal is mainly used in smart wearable products, Internet of Things, mobile communications, wireless communications, DVC, radio communications, mobile phones, handheld devices, automotive aftermarket equipment, Bluetooth and other product industries.
 In addition, in the military and aerospace fields, quartz crystals are also used to form an effective communication system, which can be used for navigation purposes of navigation systems and electronic information warfare.

WQC-HC49SMD is popularly said to be an "unreal SMD" quartz crystal. Why do say that? This starts with its production process. WQC-HC49SMD is processed by flattening the feet of WQC-HC49S - putting on gaskets - cutting the feet and pressing them - taping, so except for the pins, the other parameters are the same. Because there are several more production processes than WQC-HC49S, the corresponding cost will also increase, so the price will be slightly more expensive than WQC-HC49S. The commonly used frequencies are 8.000 MHZ, 11.0592MHZ, 12.000MHZ, 13.560MHZ, etc.
https://www.weetcap.com/Crystals-Oscillators/WEET-SMD-Quartz-Crystal-WQC-HC49SMD.html

Volume can also be said to be package size. The frequency range of this WQC-HC49SMD is: 3.200MHz ~48.000MHz, and the size is 12.5x4.5x4.1mm.

The detailed specifications of WQC-HC49SMD are: frequency difference (25℃):10PPM, 20PPM; aging (maximum): 3PPM/year, temperature range: -20~+70℃/-40~+85℃; load capacitance: 8PF, 20PF.

The characteristics of WQC-HC49SMD are: 2P metal package, quartz crystal, with high precision, high frequency stability and reliability, and excellent environmental resistance, and can reach industrial-grade temperature, comply with RoHS standards, and be green and environmentally friendly.

WQC-HC49SMD quartz crystals are used in card readers, digital cameras, computers, notebooks, routers, switches, monitoring and security, etc.

What should I do if the in and out of a passive crystal resonator are soldered upside down?

Passive crystal resonators have no directionality, so it doesn't matter if they are pasted upside down.
 For the passive crystal resonator itself, whether it is leaded or SMD, or has two, three or four pins, there is no distinction between positive and negative poles when installing it by SMD or welding.

In electronic devices, there is an indispensable component, that is, the crystal resonator. Among them, the WQC-HC49S quartz crystal has become the cornerstone of frequency control in many electronic devices with its high precision, high stability and wide application fields.
https://www.weetcap.com/Crystals-Oscillators/WEET-Leaded-Quartz-Crystal-WQC-HC49S.html

1. Basic characteristics of WQC-HC49S quartz crystal

The WQC-HC49S quartz crystal's frequency range is usually between 3.2MHz and 48MHz. Its packaging mode is HC49S, which is a traditional packaging form with large size, but high mechanical strength, good vibration resistance, relatively low price and mature production process. These characteristics make the WQC-HC49S quartz crystal widely used in home appliances, power supply equipment and other occasions where the size requirements are not high.

2. Application fields of WQC-HC49S quartz crystal

A. Digital circuit: In digital circuits, the WQC-HC49S quartz crystal provides standard time for timing control. The work of digital circuits is to complete specific tasks in a certain time according to the circuit design. Without the standard time of time control, the entire digital circuit will become chaotic. The role of the WQC-HC49S quartz crystal is to provide the system with a basic clock signal to ensure the normal operation of the digital circuit.

B. Smart home: In the field of smart home, the WQC-HC49S quartz crystal also plays an important role. Wireless communication, voice recognition, sensor control, etc. all require stable clock signals to accurately transmit and process data. The WQC-HC49S quartz crystal provides a reliable clock signal for smart home devices with its high precision and stability.

C. Remote control and modem: In devices such as remote control and modem, the WQC-HC49S quartz crystal also plays a key role. It provides these devices with a stable frequency output, which improves the accuracy and stability of data transmission.

3. Advantages of WQC-HC49S quartz crystal

The high precision, high stability and wide application field of the WQC-HC49S quartz crystal make it an ideal choice for frequency control in many electronic devices. Its lower price and mature production technology also make it highly competitive in the market.