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.

975 Records
Image Part Manufacturer Description Stock Action
PT7V4035WE Diodes Incorporated
CLOCK VCXO SO-8
5,630
In-stock
Inquiry
PT7V4035WEX Diodes Incorporated
CLOCK VCXO SO-8
4,690
In-stock
Inquiry
PT7C4502-2WF Diodes Incorporated
IC RTC CLOCK SO-8
2,000
In-stock
Inquiry
PI6CG18201ZDIE Diodes Incorporated
IC CLOCK GENERAT...
4,520
In-stock
Inquiry
PI6CG18401ZHIE Diodes Incorporated
IC CLOCK GENERAT...
6,020
In-stock
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PI6LC48S25BZBBIE Diodes Incorporated
IC CLOCK GENERAT...
1,520
In-stock
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PI6CG18200ZDIE Diodes Incorporated
CLOCK GENERATOR ...
2,860
In-stock
Inquiry
NE555S-13 Diodes Incorporated
IC OSC SINGLE TIM...
5,460
In-stock
Inquiry
NA555S-13 Diodes Incorporated
IC OSC SINGLE TIM...
1,270
In-stock
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SE555QS-13 Diodes Incorporated
IC OSC SGL TIMER ...
2,560
In-stock
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SA555S-13 Diodes Incorporated
IC OSC SINGLE TIM...
7,540
In-stock
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PT8A2515TAEX Diodes Incorporated
IC OSC TIMER 8.576K...
6,150
In-stock
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ZSCT1555D8 Diodes Incorporated
IC OSC SINGLE TIM...
4,770
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ZSCT1555N8TA Diodes Incorporated
IC OSC SGL TIMER ...
6,300
In-stock
Inquiry
PI6CX100-00WE Diodes Incorporated
IC OSC VCXO PROG ...
7,070
In-stock
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PI6CX100-27WE Diodes Incorporated
IC OSC VCXO 27MHZ ...
2,720
In-stock
Inquiry
PT7V4027WEX Diodes Incorporated
IC OSC VCXO 27MHZ ...
2,250
In-stock
Inquiry
PT8A2516NE Diodes Incorporated
IC OSC TIMER 8.576K...
2,430
In-stock
Inquiry
PT8A2516TAEX Diodes Incorporated
IC OSC TIMER 8.576K...
7,770
In-stock
Inquiry
PT8A2516NEX Diodes Incorporated
IC OSC TIMER 8.576K...
7,120
In-stock
Inquiry