| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Hong Kong X’tals Limited (HKC) |
CRYSTAL 032.768KHZ 20PPM 9PF |
43112 |
|
 |
Hong Kong X’tals Limited (HKC) |
CRYSTAL 16MHZ 10PPM 8PF |
3600 |
|
 |
Hong Kong X’tals Limited (HKC) |
CRYSTAL 32MHZ 10PPM 5PF |
4080 |
|
 |
Hong Kong X’tals Limited (HKC) |
CRYSTAL 8MHZ 30PPM 22PF |
1610 |
|
 |
Hong Kong X’tals Limited (HKC) |
CRYSTAL 32.768KHZ 20PPM 12.5PF |
763753 |
|
 |
Hong Kong X’tals Limited (HKC) |
CRYSTAL 032.768KHZ 20PPM 9PF |
43112 |
|
 |
Hong Kong X’tals Limited (HKC) |
CRYSTAL 16MHZ 10PPM 8PF |
3600 |
|
 |
Hong Kong X’tals Limited (HKC) |
CRYSTAL 26MHZ 10PPM 15PF |
1040 |
|
 |
Hong Kong X’tals Limited (HKC) |
CRYSTAL 26MHZ 10PPM 15PF |
1040 |
|
Crystals, oscillators, and resonators are passive electronic components that generate stable frequency signals for timing and synchronization in electronic systems. Crystals (e.g., quartz) utilize piezoelectric properties to produce precise oscillations. Oscillators integrate active circuitry to generate periodic signals, while resonators provide frequency-selective feedback. These components are critical in communication systems, computing devices, industrial controls, and consumer electronics.
| Type | Functional Characteristics | Application Examples |
|---|---|---|
| Quartz Crystals | High frequency stability, low phase noise | Microprocessors, GPS modules, RF transceivers |
| Ceramic Resonators | Lower cost, moderate stability | Remote controls, toys, low-precision sensors |
| MEMS Resonators | Miniaturized, shock-resistant | IoT devices, wearables, automotive sensors |
| Crystal Oscillators (XO) | Integrated driver circuitry | Network switches, test equipment, precision clocks |
A typical quartz crystal consists of a precision-cut piezoelectric wafer (AT-cut or SC-cut), metallized electrodes (silver or gold), and a hermetically sealed package (glass or ceramic). MEMS resonators use silicon-based microstructures with electrostatic or piezoelectric transducers. Ceramic resonators employ zirconium titanate (PZT) materials with printed electrodes.
| Parameter | Description | Importance |
|---|---|---|
| Frequency Range | Operating frequency band (kHz-MHz) | Determines circuit timing resolution |
| Frequency Tolerance | Initial accuracy at 25 C (ppm) | Impacts system synchronization |
| Temperature Stability | Frequency drift over temperature (ppm/ C) | Critical for harsh environments |
| Equivalent Series Resistance (ESR) | Internal resistance affecting startup time | Impacts oscillator reliability |
| Aging Rate | Long-term frequency shift (ppm/year) | System longevity consideration |
Key industries include:
| Manufacturer | Representative Product | Key Features |
|---|---|---|
| Epson | SG-8003 | 32.768 kHz TCXO for real-time clocks |
| Murata | XRCGB32M000F | 32 MHz ceramic resonator |
| SiTime | SiT8924 | MEMS-based automotive-grade oscillator |
| TXC Corporation | 9B-26.000MHZ | 26 MHz quartz crystal for Bluetooth modules |
Key considerations:
Example: For IoT edge devices, prioritize MEMS resonators with low power (<10 A) and 50 ppm stability.
Emerging trends include: