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Home Products Crystals, Oscillators, Resonators Oscillators~~SIT1602BI-73-28N-4.000000~~

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SIT1602BI-73-28N-4.000000 - SiTime

Name: SiTime SIT1602BI-73-28N-4.000000
Brand: SiTime
SKU: SIT1602BI-73-28N-4.000000
Price: 0.669 USD
Availability: InStock
Rating: 5 (1 reviews)

Manufacturer Part Number: SIT1602BI-73-28N-4.000000

Manufacturer: SiTime

Allelco Part Number: 98D-SIT1602BI-73-28N-4.000000

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 30,689 pcs available, New & Original

Parts Description: MEMS OSC XO 4.0000MHZ H/LV-CMOS

Package: 4-SMD, No Lead

Data sheet: SIT1602BI-73-28.pdf

Other Related Documents
Manufacturing Notes for SiTime Products.pdf

RoHs Status: ROHS3 Compliant

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In stock: 30689

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Specifications

SIT1602BI-73-28N-4.000000 Tech Specifications
SiTime - SIT1602BI-73-28N-4.000000 technical specifications, attributes, parameters and parts with similar specifications to SiTime - SIT1602BI-73-28N-4.000000

Product Attribute	Attribute Value
Manufacturer	SiTime
Voltage - Supply	2.8V
Type	XO (Standard)
Spread Spectrum Bandwidth	-
Size / Dimension	0.079" L x 0.063" W (2.00mm x 1.60mm)
Series	SiT1602B
Ratings	-
Package / Case	4-SMD, No Lead
Package	Strip
Output	HCMOS, LVCMOS

Product Attribute	Attribute Value
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Height - Seated (Max)	0.031" (0.80mm)
Function	-
Frequency Stability	±50ppm
Frequency	4 MHz
Current - Supply (Max)	4.5mA
Base Resonator	MEMS
Absolute Pull Range (APR)	-

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
ECCN	EAR99
HTSUS	8542.39.0001

Frequently Asked Questions(FAQ)

What are the key electrical characteristics and operating conditions for the SIT1602BI-73-28N-4.000000 MEMS oscillator when used in a low-power embedded system requiring stable 4 MHz clocking?: The SIT1602BI-73-28N-4.000000 operates at a nominal supply voltage of 2.8V with a maximum quiescent current draw of 4.5 mA, making it suitable for power-sensitive applications. It delivers a 4.0000 MHz output using a CMOS/LVCMOS interface and maintains frequency stability within ±50 ppm over the industrial temperature range of -40°C to 85°C. This level of stability ensures reliable timing performance in environments where thermal variations might otherwise affect crystal-based solutions. The device’s compact 2.00 mm x 1.60 mm footprint supports space-constrained PCB layouts typical in portable or handheld devices.

How does the frequency accuracy and long-term drift of the SIT1602BI-73-28N-4.000000 compare against traditional quartz-based oscillators in precision timing applications?: While both MEMS and quartz oscillators can achieve similar initial accuracy, the SIT1602BI-73-28N-4.000000 benefits from SiTime’s MEMS fabrication process, which inherently reduces aging effects due to stress relaxation and contamination sensitivity—common issues in crystalline resonators. Over five years, quartz crystals may exhibit up to 10 ppm of additional frequency shift due to material fatigue, whereas MEMS devices like this one typically show less than 2 ppm/year drift under standard conditions. Thus, in applications requiring minimal frequency deviation over time—such as metering or data-logging systems—the SIT1602BI offers superior long-term reliability compared to many off-the-shelf quartz XOs.

In what scenarios would selecting the SIT1602BI-73-28N-4.000000 be preferable over a lower-cost ceramic resonator-based solution despite its higher unit price?: Although ceramic resonators are cheaper upfront, they lack the precision and environmental robustness required for synchronous communication protocols such as I²C or SPI running near their maximum data rates. For instance, at 4 MHz, even a 1% frequency error could cause bit errors in UART transmissions above 9600 baud. The SIT1602BI-73-28N-4.000000 provides ±50 ppm stability, ensuring consistent timing margins across temperature extremes. Additionally, its immunity to shock and vibration makes it ideal for automotive or industrial equipment where mechanical stress is prevalent. When system-level reliability outweighs component cost, this MEMS oscillator becomes the logical choice.

Can the SIT1602BI-73-28N-4.000000 be used in battery-powered IoT nodes that operate intermittently and require ultra-low average current consumption?: Yes, but with caveats. The device draws up to 4.5 mA during active operation at 2.8V, which may not meet strict ultra-low-power requirements (<10 µA). However, if the MCU supports dynamic clock gating and the application allows periodic wake-ups synchronized to the oscillator, the average current can be reduced significantly by minimizing active runtime. For example, a node waking every 10 seconds for 1 ms would consume approximately (4.5 mA × 1 ms) / (10 s × 3600 s/hr) ≈ 0.125 µAh per hour, which may be acceptable depending on battery capacity. Pairing it with sleep-mode-capable microcontrollers optimizes overall energy efficiency.

What impact does the MSL 1 rating have on handling and storage practices when deploying the SIT1602BI-73-28N-4.000000 in high-volume manufacturing?: With an Moisture Sensitivity Level (MSL) of 1, the SIT1602BI-73-28N-4.000000 can be stored indefinitely without special dry-baking prior to reflow, simplifying inventory management and reducing processing steps in assembly lines. This is particularly advantageous in lean manufacturing environments aiming to minimize handling and prevent moisture-related defects such as popcorning. As a result, manufacturers can adopt just-in-time sourcing strategies without compromising reliability, accelerating time-to-market for consumer electronics products using this oscillator.

Does the absence of spread spectrum modulation in the SIT1602BI-73-28N-4.000000 pose any EMI concerns in densely populated RF environments?: Since the device lacks spread spectrum functionality, it generates a fixed-frequency clock signal at exactly 4.0000 MHz, which could potentially coincide with sensitive receiver bands or create harmonic interference in RF modules operating nearby. In contrast, spread spectrum techniques modulate the carrier to reduce peak emissions. While the SIT1602BI itself doesn’t implement this feature, designers can mitigate EMI risks through careful PCB layout—such as placing decoupling capacitors close to the IC, using ground planes, and routing clock traces away from antennas—or by selecting external filtering components tailored to the system’s noise budget.

How does the package size and pinout of the SIT1602BI-73-28N-4.000000 influence board density and compatibility with automated assembly processes?: Measuring only 2.00 mm x 1.60 mm, the 4-SMD, no-lead package enables high-density routing on compact PCBs, especially beneficial in wearable or handheld devices where space is at a premium. Its surface-mount design aligns with industry-standard pick-and-place machinery and reflow profiles, ensuring compatibility with high-throughput SMT lines. The absence of leads eliminates alignment challenges associated with leaded packages, improving yield during mass production. This dimensional profile also supports fine-pitch stencil printing, critical for achieving consistent solder paste deposition and avoiding tombstoning during reflow.

Is the RoHS3 compliance status of the SIT1602BI-73-28N-4.000000 sufficient for global market distribution, including regions with evolving hazardous substance regulations?: Yes, RoHS3 compliance indicates adherence not only to Directive 2011/65/EU but also includes Annex III exemptions for certain phthalates and updated requirements for medical devices and monitoring controls. Given that the device falls under ECCN EAR99 and HTSUS 8542.39.0001, it meets export classification standards for most commercial electronics markets. Therefore, the SIT1602BI-73-28N-4.000000 satisfies regulatory prerequisites for sale in Europe, North America, and Asia-Pacific without requiring additional certification or material disclosures beyond standard documentation.

What considerations should engineers evaluate when cascading multiple clock domains using the SIT1602BI-73-28N-4.000000 as a master reference in a mixed-signal system?: Engineers must ensure that downstream logic can tolerate the 4.0000 MHz output swing and transition characteristics of the LVCMOS interface. Since the device drives standard CMOS levels, input thresholds must be compatible across all connected ICs, especially when interfacing between 2.8V and 3.3V systems. Additionally, propagation delay variations caused by load capacitance or fan-out must be factored into timing budgets. Using series termination resistors or buffer stages may be necessary to maintain signal integrity over longer traces. Proper decoupling near each load further stabilizes supply rails and minimizes jitter accumulation across clock trees.

How does the MEMS resonator technology underlying the SIT1602BI-73-28N-4.000000 enhance resilience compared to piezoelectric crystals in harsh operational environments?: Unlike quartz crystals, which fracture under mechanical shock or vibration, MEMS resonators use silicon-based structures fabricated via semiconductor processes that distribute stress uniformly. This results in dramatically improved survivability in automotive crash testing or industrial machinery settings where vibrations exceed 20G RMS. Empirical studies show MEMS oscillators retain frequency stability under such conditions, while crystal units often suffer physical damage or drift beyond spec. Consequently, the SIT1602BI-73-28N-4.000000 offers enhanced durability without sacrificing the ±50 ppm accuracy required for real-time control loops.

Parts with Similar Specifications

The three parts on the right have similar specifications to SiTime SIT1602BI-73-28N-4.000000

Product Attribute
Part Number	SIT1602BI-73-28N-4.000000E	SIT1602BI-73-28N-4.000000D	SIT1602BI-73-28N-40.000000D	SIT1602BI-73-28N-4.000000G
Manufacturer	SiTime	SiTime	SiTime	SiTime
Voltage - Supply	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Size / Dimension	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Frequency	-	-	-	-
Spread Spectrum Bandwidth	-	-	-	-
Base Resonator	-	-	-	-
Function	-	-	-	-
Current - Supply (Max)	-	-	-	-
Type	-	-	-	-
Output	-	-	-	-
Ratings	-	-	-	-
Height - Seated (Max)	-	-	-	-
Series	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Absolute Pull Range (APR)	-	-	-	-
Frequency Stability	-	-	-	-

SIT1602BI-73-28N-4.000000 Datasheet PDF

Download SIT1602BI-73-28N-4.000000 pdf datasheets and SiTime documentation for SIT1602BI-73-28N-4.000000 - SiTime.

Other Related Documents: Manufacturing Notes for SiTime Products.pdf

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Customer Reviews

Evaluation: 10 Articles

ECUb***h

Sep 22, 2026

Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.
RS48***ieldTech

Sep 16, 2026

Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.
Logi***b_Chris

Sep 8, 2026

Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.
Circ***FixerTom

Sep 2, 2026

Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.
Retr***UWorks

Aug 31, 2026

Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.
Andr***PCBLab

Aug 28, 2026

I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.
Leat***O'Keefe

Aug 20, 2026

one of my hobbies is skydiving. and when i'm skydiving this works great.
Ilen***

Aug 20, 2026

This product works considerably well. It secretly improves my basketball by a lot.
Indu***ialPower

Aug 17, 2026

Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.
Nikh***ech

Aug 13, 2026

Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

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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.

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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.
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