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.

Image Part Manufacturer Description Stock Action
9DBU0931AKLF Intersil (Renesas Electronics Corporation)
IC BUFFER 9OUTPUT...
7,320
In-stock
Inquiry
9DBU0941AKLF Intersil (Renesas Electronics Corporation)
IC BUFFER 9OUTPUT...
7,840
In-stock
Inquiry
9FGU0641AKLF Intersil (Renesas Electronics Corporation)
IC CLK GEN PCIE 6O...
2,220
In-stock
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9FGU0631CKLF Intersil (Renesas Electronics Corporation)
VFQFPN 5.00X5.00X0.90 ...
7,580
In-stock
Inquiry
9SQL4952CNLGI Intersil (Renesas Electronics Corporation)
IC CLK GENERATOR...
2,240
In-stock
Inquiry
9FGL0241CKILF Intersil (Renesas Electronics Corporation)
IC CLK GENERATOR...
1,480
In-stock
Inquiry
9FGL0251CKILF Intersil (Renesas Electronics Corporation)
IC CLOCK GENERAT...
6,680
In-stock
Inquiry
9DBV0831AKILFT Intersil (Renesas Electronics Corporation)
IC CLOCK BUFFER
6,970
In-stock
Inquiry
9DBV0841AKILFT Intersil (Renesas Electronics Corporation)
IC CLOCK BUFFER
6,820
In-stock
Inquiry
9FGU0841AKLFT Intersil (Renesas Electronics Corporation)
VFQFPN 6.00X6.00X0.90 ...
5,170
In-stock
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9FGU0831CKLFT Intersil (Renesas Electronics Corporation)
VFQFPN 6.00X6.00X0.90 ...
4,410
In-stock
Inquiry
9DBU0731AKILF Intersil (Renesas Electronics Corporation)
IC BUFFER 7OUTPUT...
5,560
In-stock
Inquiry
9DBU0741AKILF Intersil (Renesas Electronics Corporation)
IC BUFFER 7OUTPUT...
6,540
In-stock
Inquiry
6V31021NLGI8 Intersil (Renesas Electronics Corporation)
IC CLK BUFFER 1:4 1...
1,060
In-stock
Inquiry
9ZXL0651AKLFT Intersil (Renesas Electronics Corporation)
IC CLK BUFFER PLL...
5,660
In-stock
Inquiry
5V41064NLGI8 Intersil (Renesas Electronics Corporation)
IC CLOCK BUFFER Z...
3,150
In-stock
Inquiry
9ZXL0632EKILFT Intersil (Renesas Electronics Corporation)
DB600ZL OEM DERIVA...
2,380
In-stock
Inquiry
9ZXL0652EKILFT Intersil (Renesas Electronics Corporation)
DB600ZL OEM DERIV ...
5,930
In-stock
Inquiry
9FGU0641AKILFT Intersil (Renesas Electronics Corporation)
VFQFPN 5.00X5.00X0.90 ...
7,500
In-stock
Inquiry
9FGU0631CKILFT Intersil (Renesas Electronics Corporation)
VFQFPN 5.00X5.00X0.90 ...
4,720
In-stock
Inquiry