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Home Products Crystals, Oscillators, Resonators Oscillators~~SIT1602BC-11-28E-72.000000E~~

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SIT1602BC-11-28E-72.000000E - SiTime

Name: SiTime SIT1602BC-11-28E-72.000000E
Brand: SiTime
SKU: SIT1602BC-11-28E-72.000000E
Price: 0.636 USD
Availability: InStock
Rating: 5 (2 reviews)

Manufacturer Part Number: SIT1602BC-11-28E-72.000000E

Manufacturer: SiTime

Allelco Part Number: 98D-SIT1602BC-11-28E-72.000000E

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 45,941 pcs available, New & Original

Parts Description: -20 TO 70C, 2520, 20PPM, 2.8V, 7

Package

Data sheet: SIT1602BC-11-28.pdf

Datasheets
SiT1602B.pdf

RoHs Status: Lead free / RoHS Compliant

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Specifications

SIT1602BC-11-28E-72.000000E Tech Specifications
SiTime - SIT1602BC-11-28E-72.000000E technical specifications, attributes, parameters and parts with similar specifications to SiTime - SIT1602BC-11-28E-72.000000E

Product Attribute	Attribute Value
Manufacturer	SiTime
Series	*
Packaging	Tape & Reel (TR)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Product Attribute	Attribute Value
Manufacturer Standard Lead Time	8 Weeks
Lead Free Status / RoHS Status	Lead free / RoHS Compliant
Detailed Description	Oscillator

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	Lead free / RoHS Compliant

Frequently Asked Questions(FAQ)

How does the frequency stability of the SIT1602BC-11-28E-72.000000E compare to other oscillators in its class, and what implications does this have for precision-critical applications?: The SIT1602BC-11-28E-72.000000E offers ±20ppm frequency stability over the industrial temperature range from -20°C to +70°C, which is typical for mid-range programmable oscillators. This level of stability is suitable for many digital systems requiring moderate timing accuracy without relying on external compensation. In contrast, oven-controlled crystal oscillators (OCXOs) can achieve <±0.5ppm, while TCXOs typically reach ±2 to ±5ppm. For applications such as USB 2.0 or Ethernet where precise clocking is essential, the ±20ppm specification may be sufficient when combined with proper system design. However, in scenarios involving long-term drift or high-speed serial communication, tighter stability might be required.

What are the key electrical characteristics that influence power consumption when integrating the SIT1602BC-11-28E-72.000000E into a battery-powered device, and how do they interact?: The SIT1602BC-11-28E-72.000000E draws approximately 4.5mA at 2.8V supply voltage, resulting in roughly 12.6mW of power dissipation under nominal conditions. This value depends directly on both the supply voltage and the operating current, which are fixed by the device’s design. Given that it operates at 72MHz, this represents a current draw of about 62.5μA per MHz of output frequency—a relatively efficient ratio compared to some legacy crystal oscillator solutions. When designing for low-power systems, engineers should consider duty cycling or disabling outputs during idle periods, as the static power consumption remains constant regardless of load or enable state.

Can the SIT1602BC-11-28E-72.000000E be used in automotive-grade environments, and what modifications would be necessary?: No, the SIT1602BC-11-28E-72.000000E is rated only from -20°C to +70°C, which aligns with commercial or industrial temperature ranges but not automotive AEC-Q100 qualifications. Automotive systems often require operation from -40°C to +125°C, so using this oscillator outside its specified temperature window could result in degraded performance or failure. While SiTime offers automotive-qualified variants of similar parts, this specific model lacks the extended thermal endurance and reliability testing needed for automotive applications. Designers targeting automotive markets must select alternative components explicitly rated for those conditions.

How does the package size and pinout of the SIT1602BC-11-28E-72.000000E affect PCB layout constraints in space-constrained designs?: The SIT1602BC-11-28E-72.000000E comes in an SMD2520-4P package measuring 2.5mm x 2.0mm, making it one of the smallest programmable oscillators available today. This compact footprint allows integration into densely populated boards such as mobile devices or IoT modules. The four-pin configuration includes standard enable/disable functionality alongside VDD, GND, and output, simplifying routing. However, due to its small size, attention must be paid to decoupling placement within 1–2 mm of the VDD pin to minimize inductance and ensure stable operation. Additionally, careful consideration of trace length matching is required if distributing the clock signal across multiple ICs.

Is it possible to reconfigure the frequency output of the SIT1602BC-11-28E-72.000000E after manufacturing, and what tools are needed?: Yes, the SIT1602BC-11-28E-72.000000E is a digitally configurable oscillator, meaning its output frequency can be adjusted post-production via serial interface protocols such as I²C or SPI, depending on firmware support. The factory-set frequency of 72.000000MHz serves as a default but does not lock the device permanently. Engineers can reprogram the device using development kits provided by SiTime or custom software tools that communicate with the onboard memory. This flexibility enables rapid prototyping and production line tuning without replacing hardware—ideal for platforms requiring multiple clock speeds from a single component family.

How does the LVCMOS/HCMOS output type of the SIT1602BC-11-28E-72.000000E impact compatibility with downstream logic families?: The SIT1602BC-11-28E-72.000000E provides LVCMOS-compatible HCMOS levels, which means it supports standard 3.3V or 2.8V logic thresholds compatible with most modern microcontrollers and FPGAs. This dual-mode capability ensures interoperability across mixed-voltage systems without requiring level shifters. For instance, interfacing with a 2.8V MCU is straightforward since the output swings between near 0V and full supply rail, meeting typical VIH/VIL requirements. However, care must still be taken to match rise/fall times and drive strength to avoid excessive loading on the clock line, especially in high-speed designs.

What are the long-term reliability concerns associated with the SIT1602BC-11-28E-72.000000E, particularly regarding aging and shock resistance?: As a MEMS-based oscillator, the SIT1602BC-11-28E-72.000000E exhibits significantly lower aging rates compared to traditional quartz oscillators—typically less than 2 ppm/year—due to the absence of piezoelectric material degradation. This contributes to more consistent frequency over time. Additionally, MEMS technology inherently offers superior shock and vibration resilience relative to crystals, reducing failure risk in mobile or industrial environments. Nevertheless, like all solid-state devices, it remains sensitive to ESD events and improper handling during assembly. Proper JEDEC-compliant packaging and ESD protection circuits are recommended during board bring-up.

How does the tape and reel packaging format influence automated assembly processes for the SIT1602BC-11-28E-72.000000E?: The SIT1602BC-11-28E-72.000000E is delivered in Tape & Reel (TR) packaging, which is optimized for high-volume surface-mount technology (SMT) assembly lines. This format enables automatic pick-and-place machines to feed components continuously, improving throughput and minimizing human handling errors. The carrier tape holds individual units in pockets aligned with industry-standard pitch dimensions, ensuring accurate placement onto PCBs. Manufacturers benefit from reduced downtime and higher yield rates, especially in large-scale deployments like consumer electronics. However, users must verify compatibility with their specific SMT equipment before ordering.

What design considerations arise when using the SIT1602BC-11-28E-72.000000E near other high-frequency components to avoid interference?: The SIT1602BC-11-28E-72.000000E generates a 72MHz square wave that can emit electromagnetic noise through conducted or radiated paths if not properly managed. To mitigate coupling, maintain a minimum clearance of 3× the trace width between the oscillator output and sensitive analog lines, and route clock traces perpendicularly rather than parallel to data buses. Ground planes beneath the oscillator help contain return currents, and placing a 100nF ceramic capacitor directly at the VDD pin reduces high-frequency ripple. Shielding cans may be necessary in extreme cases, though the small 2520 footprint limits physical shielding options.

How does the supply voltage tolerance of the SIT1602BC-11-28E-72.000000E affect system-level power budgeting?: The SIT1602BC-11-28E-72.000000E requires a stable 2.8V supply with tight regulation to maintain performance. Deviations beyond ±5% (i.e., 2.66V to 2.94V) may cause instability or increased jitter. Since it consumes 4.5mA at nominal voltage, variations in rail voltage directly translate into changes in power draw. For example, dropping to 2.5V would reduce current slightly but potentially degrade noise margins; rising to 3.0V increases power consumption to ~5.0mA, raising total system heat and battery drain. Therefore, designers should implement low-dropout regulators (LDOs) with low quiescent current to stabilize the supply efficiently.

Can multiple instances of the SIT1602BC-11-28E-72.000000E share a common reference clock distribution network without introducing skew issues?: Yes, but with caveats. The SIT1602BC-11-28E-72.000000E has excellent phase noise performance and low jitter (<1 ps RMS), enabling reliable fan-out to multiple loads. However, each device adds slight propagation delay due to internal circuitry, and trace length mismatches on the output path can create skew exceeding acceptable thresholds in synchronous systems. For best results, use matched-length PCB traces and limit fan-out to three or fewer destinations unless buffered appropriately. Alternatively, consider a dedicated clock buffer IC for larger distributions, preserving the oscillator’s integrity while managing load effects.

What alternatives exist if the SIT1602BC-11-28E-72.000000E’s frequency range or package size cannot meet design requirements?: SiTime offers a broad portfolio of programmable oscillators with similar features but different frequencies, voltages, and package formats. For instance, the SIT1602BC series supports frequencies from 1MHz to 300MHz in various SMD packages including 2016, 3225, and 5032. If size is critical, the 2016 option provides comparable functionality in a smaller footprint. If higher stability is needed, the ±10ppm or ±5ppm versions of the same part number family offer tighter tolerances. Engineers should evaluate trade-offs between frequency resolution, power, and cost based on application needs before selecting a substitute.

How does the RoHS compliance status of the SIT1602BC-11-28E-72.000000E affect global market entry, particularly in Europe and North America?: The SIT1602BC-11-28E-72.000000E is fully RoHS compliant, meaning it contains no lead, mercury, cadmium, hexavalent chromium, PBBs, or PBDEs above regulatory thresholds. This certification simplifies compliance documentation and facilitates market access across regions with strict environmental regulations, including the EU Restriction of Hazardous Substances Directive and California’s Proposition 65. It also aligns with corporate sustainability policies common in aerospace, medical, and consumer electronics sectors. Non-compliance risks product bans or recalls, so verifying third-party test reports alongside datasheet claims is advisable.

What testing procedures are recommended during qualification of the SIT1602BC-11-28E-72.000000E in new product development?: During initial bring-up, perform functional verification across the full operating temperature range (-20°C to +70°C) to confirm frequency accuracy and signal integrity. Use a spectrum analyzer or high-bandwidth oscilloscope to measure phase noise and jitter, comparing against datasheet specifications. Thermal cycling tests ensure mechanical robustness, while accelerated life testing (e.g., 85°C/85% RH) assesses long-term reliability. Electrical characterization should include startup time, enable/disable response, and supply current under load. These steps validate real-world performance beyond nominal conditions and uncover potential failure modes early.

Parts with Similar Specifications

The three parts on the right have similar specifications to SiTime SIT1602BC-11-28E-72.000000E

Product Attribute
Part Number	SIT1602BC-11-28E-72.000000D	SIT1602BC-11-28E-72.000000G	SIT1602BC-11-28E-72.000000	SIT1602BC-11-28E-74.176000E
Manufacturer	SiTime	SiTime	SiTime	SiTime
Detailed Description	-	-	-	-
Manufacturer Standard Lead Time	-	-	-	-
Lead Free Status / RoHS Status	-	-	-	-
Series	-	-	-	-
Moisture Sensitivity Level (MSL)	-	-	-	-
Packaging	-	-	-	-

SIT1602BC-11-28E-72.000000E Datasheet PDF

Download SIT1602BC-11-28E-72.000000E pdf datasheets and SiTime documentation for SIT1602BC-11-28E-72.000000E - SiTime.

Datasheets: SiT1602B.pdf

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Customer Reviews

Evaluation: 10 Articles

Oliv***arris

May 7, 2026

Reliable I/O expander. Works well in embedded control applications.
Jess***Jones

Apr 17, 2026

It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.
Mich***Smith

Apr 17, 2026

Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.
Aman***arris

Apr 3, 2026

It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.
Mike***nch

Apr 3, 2026

Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.
Daic***K.

Mar 23, 2026

Very good. No issue after long time testing.
Kevi***.

Mar 17, 2026

Fast switching and stable output. Very satisfied with this IC
Daou***hekebkeb

Jun 16, 2024

I had a great experience purchasing items from Allelcoelec, I recommend
Uri ***al

Jun 19, 2024

Good comunication,
Transpnt regarding the process and price.
Yaqu***l Ali

Jun 19, 2024

Providing reasonable prices, regular follow-up of orders, providing accurate and regular invoices, timely delivery of goods, excellent customer service and providing original goods and best quality materials.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

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Delivery Method

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Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

Note:: The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

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Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.

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