Clock Timing covers the parts that keep a system synchronized: crystal oscillators, clock generators, jitter cleaners, PLLs, buffers, dividers, and real-time clocks. Some designs only need a simple 25 MHz oscillator to drive an MCU, while others depend on a low-jitter clock tree for Ethernet, SerDes, RF, or data converter timing. These parts show up everywhere, from industrial controllers and network switches to medical devices, telecom line cards, and automotive modules. When buyers source clock timing components, the first thing they usually check is frequency stability and jitter, because a cheaper part with worse phase noise can force a redesign later. Package matters too. A lot of engineers still prefer standard SMD packages like 3225 or 5032 for oscillators, but smaller designs keep pushing toward tighter footprints and lower current draw. Supply is the other big issue. Active clock ICs from major brands can go on allocation without much warning, and older RTC or buffer part numbers sometimes drift into last-time-buy status while production is still running. That is where the trade-off usually shows up: pay more for a branded, traceable part now, or gamble on a gray-market offer and risk inconsistent date codes, poor storage, or outright counterfeit stock. For procurement teams, packaging preference is not a small detail either. Tape-and-reel is fine for production, but many repair and NPI builds still need cut tape or small quantities with proper labels and handling. If you are comparing clock timing parts, it helps to send the exact part number, required quantity, target date code, and whether alternates are acceptable. For current stock, lead time, or a quote, check availability at icxing.com.
Ask for photos of the label, reel, and lot or date code before placing the order. For timing ICs and oscillators, inconsistent markings and mixed date codes are common warning signs, especially on older or allocated part numbers. Buying through a distributor that can provide traceability lowers that risk.
Start with frequency, stability over temperature, supply voltage, output type, and jitter. For simple MCU clocks, basic stability may be enough, but Ethernet, FPGA, and RF designs often need much tighter phase noise performance. The right part depends on the system budget, not just the headline frequency.
Small differences in package, temperature range, frequency option, or output format can turn a common part into a factory-order item. Standard frequencies and popular SMD packages usually move faster, while custom or legacy options may carry long lead times. If your build is urgent, ask about approved alternates early.
| Image | Part | Manufacturer | Description | Stock | Action | |
|---|---|---|---|---|---|---|
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onsemi | IC CLOCK ZDB FANO... |
6,770
In-stock
|
Inquiry | ||
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onsemi | P3MS650103 - 1.8V/2.5V/3.... |
4,650
In-stock
|
Inquiry | ||
|
onsemi | PLL FREQUENCY SY... |
6,880
In-stock
|
Inquiry | ||
|
onsemi | QUAD HCSL/LVDS CL... |
3,990
In-stock
|
Inquiry | ||
|
onsemi | I2C PROGRAMMABLE... |
4,020
In-stock
|
Inquiry | ||
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onsemi | BBG ECL CLOCK GEN... |
4,500
In-stock
|
Inquiry | ||
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onsemi | IC DETECT PHASE F... |
3,550
In-stock
|
Inquiry | ||
|
onsemi | IC PHASE LOCKED L... |
3,860
In-stock
|
Inquiry | ||
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onsemi | IC CLOCK GEN 2-4-8 E... |
1,000
In-stock
|
Inquiry | ||
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onsemi | IC CLOCK GEN 3-PLL... |
4,950
In-stock
|
Inquiry | ||
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onsemi | IC SYNTH PLL CLK ... |
4,370
In-stock
|
Inquiry | ||
|
onsemi | IC CLOCK GEN ECL ... |
6,050
In-stock
|
Inquiry | ||
|
onsemi | IC CLK GEN 2/4 4/5/6 E... |
6,850
In-stock
|
Inquiry | ||
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onsemi | PHASE LOCKED LOO... |
2,210
In-stock
|
Inquiry | ||
|
onsemi | PHASE LOCKED LOO... |
3,900
In-stock
|
Inquiry | ||
|
onsemi | VPS/PDC SLICER IC |
7,730
In-stock
|
Inquiry | ||
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onsemi | PLL FREQUENCY SY... |
6,180
In-stock
|
Inquiry | ||
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onsemi | IC CLK GEN HCSL/L... |
6,490
In-stock
|
Inquiry | ||
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onsemi | IC CLOCK GEN PLL ... |
2,170
In-stock
|
Inquiry | ||
|
onsemi | IC CLOCK SYNTH 25-... |
5,280
In-stock
|
Inquiry |