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
NB6L572MMNG onsemi
IC CLK BUFFER 4:2 6...
3,660
In-stock
Inquiry
MC100EP210SMNG onsemi
IC CLK BUFFER 1:5 1...
1,930
In-stock
Inquiry
MC100EP210SFAG onsemi
IC CLK BUFFER 1:5 1...
6,480
In-stock
Inquiry
NB3M8304CDR2G onsemi
IC CLK BUFFER 1:4 2...
5,320
In-stock
Inquiry
NB3V1104CDTR2G onsemi
IC CLK FANOUT/BUF...
1,080
In-stock
Inquiry
MC100LVEL11DR2G onsemi
IC CLK BUFFER 1:2 1...
4,840
In-stock
Inquiry
NB3V1108CDTR2G onsemi
IC CLK FANOUT/BUF...
7,730
In-stock
Inquiry
NB3V1104CMTTBG onsemi
IC CLK FANOUT/BUF...
3,330
In-stock
Inquiry
NB3H83905CDR2G onsemi
IC CLK BUFFER 1:6 1...
2,530
In-stock
Inquiry
NB3H83905CDTR2G onsemi
IC CLK BUFFER 1:6 1...
4,720
In-stock
Inquiry
NB3L204KMNTXG onsemi
IC FANOUT BUFFER...
1,920
In-stock
Inquiry
NB3U1548CDTR2G onsemi
LVCMOS LVTTL FAN...
1,160
In-stock
Inquiry
MC100LVEP11DTR2G onsemi
IC CLK BUFFER 1:2 3...
6,350
In-stock
Inquiry
NB3V1106CDTR2G onsemi
IC CLK FANOUT/BUF...
3,970
In-stock
Inquiry
NB3N853531EDTR2G onsemi
IC CLK BUFFER 2:4 2...
7,040
In-stock
Inquiry
NB3L8504SDTR2G onsemi
IC CLK BUFFER DIF...
5,130
In-stock
Inquiry
NB7L1008MNTXG onsemi
IC CLK BUFFER 1:8 8...
4,160
In-stock
Inquiry
MC100LVEP14DTR2G onsemi
IC CLK BUFFER 2:5 2...
7,470
In-stock
Inquiry
NB6L611MNR2G onsemi
IC CLK BUFFER 1:2 4...
4,990
In-stock
Inquiry
NB6L14SMNTXG onsemi
IC CLK BUFFER 1:4 2...
4,560
In-stock
Inquiry