Clock/Timing

Clock/Timing

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.

Frequently Asked Questions

How do I know if a clock timing part is genuine when buying from the open market?

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.

What specs matter most when comparing oscillators and clock generators?

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.

Why do clock timing lead times vary so much between similar part numbers?

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.

1,328 Records
Image Part Manufacturer Description Stock Action
NB100LVEP224FARG onsemi
IC CLK BUFFER 2:24 ...
4,610
In-stock
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NB4L6254MNG onsemi
IC CLK BUF 1:6/1:3 3G...
6,580
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IC CLK BUF 1:6/1:3 3G...
4,080
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IC CLK BUFFER 2:10 ...
6,690
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IC CLK BUFFER 1:6 7...
6,200
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NB7V58MMNTXG onsemi
IC CLK MULTIPLEX...
2,910
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NB7VQ58MMNHTBG onsemi
IC CLK MULTIPLEX...
1,990
In-stock
Inquiry
NB7VQ58MMNTXG onsemi
IC CLK MULTIPLEX...
7,220
In-stock
Inquiry
NBSG111BAHTBG onsemi
IC CLK BUFFER 2:10 ...
1,140
In-stock
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NB7LQ572MNR4G onsemi
IC CLK BUFFER 4:2 7...
4,050
In-stock
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P2I2305NZG-08SR onsemi
IC CLK BUF 1:5 133.33M...
1,850
In-stock
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ASM2I9940LG-32LT onsemi
IC CLK BUFFER 2:18 ...
3,410
In-stock
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NB6LQ572MMNG onsemi
IC CLK BUFFER 4:2 6...
2,010
In-stock
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NB3H83905CDG onsemi
IC CLK BUFFER 1:6 1...
5,840
In-stock
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NB7L14MN1G onsemi
IC CLK BUFFER 1:4 8...
1,160
In-stock
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NB7VQ14MMNTXG onsemi
IC CLK BUFFER 1:4 8...
1,310
In-stock
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NB3N121KMNR2G onsemi
IC CLK BUFFER 1:21 ...
5,550
In-stock
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NB7L14MN1TXG onsemi
IC CLK BUFFER 1:4 8...
3,570
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NB3N121KMNG onsemi
IC CLK BUFFER 1:21 ...
7,230
In-stock
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NB3N108KMNG onsemi
IC CLK BUFFER 1:8 4...
3,430
In-stock
Inquiry