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
NB7L32MMNR2G onsemi
IC CLOCK DIVIDER...
2,700
In-stock
Inquiry
NB7N017MMN onsemi
IC DIVIDER 8BIT D...
7,440
In-stock
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NB7N017MMNG onsemi
IC DIVIDER 8BIT D...
7,080
In-stock
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NB7N017MMNR2 onsemi
IC DIVIDER 8BIT D...
5,120
In-stock
Inquiry
NB7N017MMNR2G onsemi
IC DIVIDER 8BIT D...
3,360
In-stock
Inquiry
NBC12429AFA onsemi
IC CLOCK SYNTH 25-...
7,440
In-stock
Inquiry
NBC12429AFAG onsemi
IC CLOCK SYNTH 25-...
5,120
In-stock
Inquiry
NBC12429AFAR2 onsemi
IC CLOCK SYNTH 25-...
2,310
In-stock
Inquiry
NBC12429AFAR2G onsemi
IC CLOCK SYNTH 25-...
2,170
In-stock
Inquiry
NBC12429AFN onsemi
IC CLOCK SYNTH 25-...
2,920
In-stock
Inquiry
NBC12429AFNR2 onsemi
IC CLOCK SYNTH 25-...
7,090
In-stock
Inquiry
NBC12429AMNG onsemi
IC CLOCK SYNTH 25-...
4,730
In-stock
Inquiry
NBC12430AFA onsemi
IC CLOCK SYNTH 50-...
1,350
In-stock
Inquiry
NBC12430AFAG onsemi
IC CLOCK SYNTH 50-...
5,560
In-stock
Inquiry
NBC12430AFAR2 onsemi
IC CLOCK SYNTH 50-...
1,770
In-stock
Inquiry
NBC12430AFAR2G onsemi
IC CLOCK SYNTH 50-...
5,180
In-stock
Inquiry
NBC12430AFN onsemi
IC CLOCK SYNTH 50-...
5,590
In-stock
Inquiry
NBC12430AFNR2 onsemi
IC CLOCK SYNTH 50-...
4,420
In-stock
Inquiry
NBC12430AFNR2G onsemi
IC CLOCK SYNTH 50-...
4,330
In-stock
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NBC12430AMNR4G onsemi
IC CLOCK SYNTH 50-...
7,410
In-stock
Inquiry