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Home Products Crystals, Oscillators, Resonators Oscillators~~SIT1602BC-13-30E-31.250000~~

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SIT1602BC-13-30E-31.250000 - SiTime

Manufacturer Part Number: SIT1602BC-13-30E-31.250000

Manufacturer: SiTime

Allelco Part Number: 98D-SIT1602BC-13-30E-31.250000

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 43,535 pcs available, New & Original

Parts Description: MEMS OSC XO 31.2500MHZ H/LV-CMOS

Package: 4-SMD, No Lead

Data sheet: SIT1602BC-13-30.pdf

Other Related Documents
Manufacturing Notes for SiTime Products.pdf

RoHs Status: ROHS3 Compliant

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In stock: 43535

Unit Price: $0.646
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Specifications

SIT1602BC-13-30E-31.250000 Tech Specifications
SiTime - SIT1602BC-13-30E-31.250000 technical specifications, attributes, parameters and parts with similar specifications to SiTime - SIT1602BC-13-30E-31.250000

Product Attribute	Attribute Value
Manufacturer	SiTime
Voltage - Supply	3V
Type	XO (Standard)
Spread Spectrum Bandwidth	-
Size / Dimension	0.098" L x 0.079" W (2.50mm x 2.00mm)
Series	SiT1602B
Ratings	-
Package / Case	4-SMD, No Lead
Package	Strip
Output	HCMOS, LVCMOS

Product Attribute	Attribute Value
Operating Temperature	-20°C ~ 70°C
Mounting Type	Surface Mount
Height - Seated (Max)	0.031" (0.80mm)
Function	Enable/Disable
Frequency Stability	±50ppm
Frequency	31.25 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)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8542.39.0001

Frequently Asked Questions(FAQ)

What are the key performance trade-offs when selecting the SIT1602BC-13-30E-31.250000 for a low-power embedded system operating between -20°C and 70°C?: The SIT1602BC-13-30E-31.250000 offers a stable ±50ppm frequency tolerance across its specified temperature range, which supports reliable timing in industrial environments without requiring additional compensation circuitry. However, this stability comes with a maximum supply current draw of 4.5mA at 3V, which may be significant for battery-powered applications where power efficiency is critical. Engineers must balance this moderate power consumption against the oscillator’s MEMS-based reliability and small footprint, especially when compared to larger crystal-based alternatives that might offer lower quiescent current but require more board space and exhibit greater aging effects over time.

How does the enable/disable functionality of the SIT1602BC-13-30E-31.250000 impact system-level power management strategies in microcontroller-based designs?: The integrated enable/disable pin allows software-controlled shutdown of the oscillator during idle modes, reducing overall system power consumption by cutting the 4.5mA supply current when not in use. This feature enables dynamic power scaling in applications like wireless sensors or IoT edge devices that operate intermittently. However, users must account for turn-on time specifications not detailed in the summary—typically in the hundreds of microseconds for MEMS oscillators—which may affect wake-up latency requirements. Proper integration requires coordination with the host MCU’s clocking architecture to avoid glitches during state transitions.

Can the SIT1602BC-13-30E-31.250000 be substituted for a traditional 32.768kHz RTC crystal in a timekeeping subsystem, and what modifications would be necessary?: No, direct substitution is not feasible due to frequency mismatch—the SIT1602BC-13-30E-31.250000 operates at 31.25MHz, whereas RTC crystals typically run near 32.768kHz. While both serve timing functions, their intended roles differ: the MEMS oscillator provides a high-speed clock source for data processing, while the low-frequency crystal maintains real-time counters. Attempting to use the 31.25MHz device in an RTC context would disrupt timekeeping accuracy unless accompanied by a frequency division circuit, introducing complexity and potential jitter sources not present in dedicated RTC solutions.

What design considerations apply when routing signals adjacent to the SIT1602BC-13-30E-31.250000 on a compact PCB layout?: Due to its 4-SMD package measuring 2.5mm x 2.00mm, the SIT1602BC-13-30E-31.250000 occupies minimal board area but remains sensitive to nearby digital noise due to its CMOS output stage. Maintaining at least 3x the trace width spacing from high-speed digital lines and avoiding parallel routing under the oscillator reduces coupling risks. Grounding beneath the component via multiple vias enhances stability, though excessive copper proximity could affect thermal performance during soldering or operation. Careful layout ensures signal integrity without compromising the device’s inherent immunity to vibration and shock.

How does the SIT1602BC-13-30E-31.250000 compare to ceramic resonators in terms of long-term frequency drift and environmental robustness?: Unlike ceramic resonators, which can exhibit up to ±100ppm drift over temperature and suffer degradation from humidity exposure, the SIT1602BC-13-30E-31.250000 leverages MEMS technology to maintain ±50ppm stability across -20°C to 70°C with negligible aging—typically <1ppm/year. This makes it preferable in applications requiring consistent timing over extended lifespans, such as medical monitoring equipment or automotive telematics, where reliability outweighs the slightly higher cost per unit compared to bulkier ceramic alternatives.

Is it acceptable to operate the SIT1602BC-13-30E-31.250000 outside its specified voltage range if the host system supplies 3.3V instead of exactly 3V?: Operating near the boundary—such as using a 3.3V supply instead of 3.0V—is generally permissible given SiTime’s typical tolerance margins for LVCMOS logic levels, but precise validation is required. The datasheet specifies a 3V nominal supply; deviations above or below can alter output swing thresholds and increase propagation delay unpredictably. If 3.3V operation is necessary, consulting SiTime’s application notes for margin testing and ensuring load capacitance matches recommended values minimizes risk of functional failure or degraded phase noise.

What impact does moisture sensitivity level (MSL) classification have during the assembly process for components populated with the SIT1602BC-13-30E-31.250000?: Classified as MSL 1 (unlimited floor life), the SIT1602BC-13-30E-31.250000 does not require baking prior to reflow soldering, simplifying handling in high-volume manufacturing. This contrasts with MSL 3 or higher parts that demand strict moisture control protocols. However, despite its resilience, repeated thermal cycling during assembly can stress the MEMS structure over time, so minimizing peak temperatures above 260°C and limiting dwell time helps preserve long-term reliability, particularly in lead-free reflow profiles.

In what scenarios would engineers choose the SIT1602BC-13-30E-31.250000 over a quartz-based XO with similar frequency and package size?: Selection favors the SIT1602BC-13-30E-31.250000 when vibration resistance, shock tolerance, or long-term stability outweigh initial cost savings. Quartz oscillators often degrade faster under mechanical stress and exhibit higher frequency variation with temperature gradients; the MEMS alternative maintains ±50ppm consistently without external tuning. Additionally, its smaller height (0.80mm max) benefits space-constrained designs like wearables or modular sensor nodes, where board stacking density justifies the premium over conventional crystals despite marginally higher unit pricing.

Parts with Similar Specifications

The three parts on the right have similar specifications to SiTime SIT1602BC-13-30E-31.250000

Product Attribute
Part Number	SIT1602BC-13-30E-31.250000D	SIT1602BC-13-30E-31.250000G	SIT1602BC-13-30E-31.250000E	SIT1602BC-13-30E-3.570000G
Manufacturer	SiTime	SiTime	SiTime	SiTime
Type	-	-	-	-
Base Resonator	-	-	-	-
Height - Seated (Max)	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Spread Spectrum Bandwidth	-	-	-	-
Absolute Pull Range (APR)	-	-	-	-
Voltage - Supply	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Size / Dimension	-	-	-	-
Output	-	-	-	-
Frequency Stability	-	-	-	-
Series	-	-	-	-
Function	-	-	-	-
Current - Supply (Max)	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Frequency	-	-	-	-
Ratings	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad

SIT1602BC-13-30E-31.250000 Datasheet PDF

Download SIT1602BC-13-30E-31.250000 pdf datasheets and SiTime documentation for SIT1602BC-13-30E-31.250000 - 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.
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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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