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Home Products Crystals, Oscillators, Resonators Crystals~~445C33H13M00000~~

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445C33H13M00000 - CTS-Frequency Controls

Name: CTS-Frequency Controls 445C33H13M00000
Brand: CTS-Frequency Controls
SKU: 445C33H13M00000
Price: 0.352 USD
Availability: InStock
Rating: 5 (6 reviews)

Manufacturer Part Number: 445C33H13M00000

Manufacturer: CTS Corporation

Allelco Part Number: 98D-445C33H13M00000

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 49,935 pcs available, New & Original

Parts Description: CRYSTAL 13.0000MHZ 32PF SMD

Package: 2-SMD, No Lead

Data sheet: 445C33H13M00000.pdf

Datasheets
445 Series Datasheet.pdf

Environmental Information
RoHS Glass Seal Crystal.pdf CTS Corp REACH.pdf

RoHs Status: ROHS3 Compliant

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In stock: 49935

Unit Price: $0.352
Subtotal: $0.00

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Quantity	Unit Price	Ext. Price
1+	$0.352	$0.35

The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

445C33H13M00000 Tech Specifications
CTS-Frequency Controls - 445C33H13M00000 technical specifications, attributes, parameters and parts with similar specifications to CTS-Frequency Controls - 445C33H13M00000

Product Attribute	Attribute Value
Manufacturer	CTS Corporation
Type	MHz Crystal
Size / Dimension	0.197" L x 0.126" W (5.00mm x 3.20mm)
Series	445
Ratings	-
Package / Case	2-SMD, No Lead
Package	Tape & Reel (TR)
Operating Temperature	-20°C ~ 70°C

Product Attribute	Attribute Value
Operating Mode	Fundamental
Mounting Type	Surface Mount
Load Capacitance	32pF
Height - Seated (Max)	0.053" (1.35mm)
Frequency Tolerance	±30ppm
Frequency Stability	±30ppm
Frequency	13 MHz
ESR (Equivalent Series Resistance)	50 Ohms

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8541.60.0050

Frequently Asked Questions(FAQ)

What is the frequency tolerance and stability specification for the CTS-Frequency Controls 445C33H13M00000 crystal oscillator, and how do these parameters affect timing accuracy in a digital system?: The 445C33H13M00000 features a frequency tolerance of ±30ppm and a stability of ±30ppm over its operating temperature range from -20°C to 70°C. This means the actual frequency may deviate by up to 0.39 kHz (13 MHz × 0.00003) from the nominal 13.0000 MHz value. In applications such as UART communication or SPI interfaces where precise clocking is critical, this level of variation can accumulate over time and lead to data framing errors if not accounted for in system design. The combined tolerance and stability values indicate a fundamental-mode crystal with moderate precision suitable for non-telecom consumer electronics rather than high-reliability industrial systems.

How does the load capacitance requirement of 32pF influence PCB layout decisions when implementing the 445C33H13M00000 crystal circuit?: The specified 32pF load capacitance dictates that external capacitors must be carefully selected and placed close to the crystal pins to ensure proper oscillation. For most microcontroller applications, two equal-value capacitors (typically 27–33pF) are connected between each crystal pin and ground. Exceeding this value risks reduced output amplitude or startup failure, while undersizing it may cause excessive drive current and crystal wear. Due to the 2-SMD footprint’s compact size, trace lengths must be minimized—ideally less than 5mm—to avoid parasitic capacitance that could shift the effective load beyond specifications and destabilize operation.

Can the 445C33H13M00000 operate reliably in environments with rapid thermal cycling between -20°C and 70°C, and what factors might degrade performance over time?: Yes, the component is rated for operation across -20°C to 70°C, which covers many standard industrial and commercial environments. However, repeated thermal cycling within this range can induce mechanical stress on the quartz blank due to differential expansion between the crystal element and package materials. Over decades of use, this may contribute to slight shifts in frequency stability or increased aging drift beyond the initial ±30ppm guarantee. Additionally, humidity exposure above MSL Level 1 handling limits without baking could compromise solder joint integrity during reflow, though the device itself remains functional within specified conditions.

How does the equivalent series resistance (ESR) of 50 ohms compare to other common crystals in similar form factors, and what implications does this have for oscillator circuit design?: A 50-ohm ESR places the 445C33H13M00000 at the higher end of typical values for fundamental-mode crystals in SMD packages. Lower-ESR devices (e.g., <20Ω) generally require less drive power but are more sensitive to loading variations, whereas higher-ESR parts like this one offer greater tolerance to stray capacitance but consume more energy. When driving this crystal, designers should ensure the inverter or oscillator IC provides sufficient bias current to overcome the 50Ω impedance without overdriving the crystal, which could shorten its lifespan. This characteristic makes it suitable for moderately loaded circuits but less ideal for ultra-low-power battery-operated devices.

What distinguishes the 445C33H13M00000 from voltage-controlled crystal oscillators (VCXOs) or oven-controlled oscillators (OCXOs) in terms of phase noise and long-term stability?: Unlike VCXOs or OCXOs, the 445C33H13M00000 is a passive crystal resonator without active control circuitry, resulting in inherently higher phase noise and inferior long-term stability compared to temperature-compensated alternatives. Its ±30ppm stability is adequate for basic microcontroller clocks or low-speed serial protocols but insufficient for RF synthesis, GPS timing, or high-speed Ethernet applications requiring sub-ppb accuracy. While VCXOs allow frequency tuning via control voltage and OCXOs maintain constant temperature through heating elements, this crystal offers simplicity and cost advantages at the expense of precision—making it appropriate only where absolute timing precision is secondary to system integration ease.

In what scenarios would replacing the 445C33H13M00000 with an integrated crystal oscillator (XO) module be preferable despite added complexity and cost?: An integrated XO module would be preferable when system requirements demand tighter frequency stability (±5ppm or better), lower phase noise, or enhanced immunity to supply voltage fluctuations and electromagnetic interference. For example, in wireless sensor nodes transmitting over LoRaWAN or Zigbee, the cumulative jitter from a bare crystal like the 445C33H13M00000 could exceed acceptable limits for packet synchronization. Additionally, if the application involves long-duration operation (>10 years), the integrated solution’s superior aging characteristics and temperature compensation would yield more predictable clock behavior, reducing rework risks in field deployments.

How should moisture sensitivity level (MSL) classification impact storage and handling procedures for bulk shipments of 445C33H13M00000 components prior to assembly?: Although the 445C33H13M00000 carries an MSL rating of 1 (unlimited floor life), meaning it poses minimal risk of moisture-induced defects during reflow, best practices still recommend storing the Tape & Reel (TR) packaging in dry ambient conditions (<60% RH) away from direct condensation. If exposed to elevated humidity during shipping or warehousing, even brief exposure could create localized vapor pockets inside sealed reels that might manifest as popcorning during thermal stress. While not strictly required for this MSL level, desiccant packs in storage containers help maintain consistency across large inventories and simplify compliance documentation in regulated industries.

What are the key trade-offs when selecting the 445C33H13M00000 versus alternative crystals with different load capacitances (e.g., 18pF or 22pF) for the same target frequency?: Choosing a crystal with a mismatch between the oscillator circuit’s expected load and the device’s rated value—such as pairing a 18pF crystal with 32pF requirements—results in suboptimal motional parameters, potentially preventing oscillation entirely or causing unstable startup. Conversely, using a higher-load-capacitance crystal like the 445C33H13M00000 with an 18pF-designed circuit forces the external capacitors to absorb excess charge, increasing ESR and reducing margin against parasitic effects. The 32pF specification ensures compatibility with common microcontrollers’ internal feedback networks, offering robustness against minor layout imperfections while balancing drive strength and reliability in mass-production environments.

Parts with Similar Specifications

The three parts on the right have similar specifications to CTS-Frequency Controls 445C33H13M00000

Product Attribute
Part Number	445C33H12M00000	445C33H30M00000	445C33H16M00000	445C33J12M00000
Manufacturer	CTS-Frequency Controls	CTS-Frequency Controls	CTS-Frequency Controls	CTS-Frequency Controls
Type	-	-	-	-
Load Capacitance	-	-	-	-
Frequency Stability	-	-	-	-
Ratings	-	-	-	-
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
Height - Seated (Max)	-	-	-	-
Series	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Frequency	-	-	-	-
Frequency Tolerance	-	-	-	-
Operating Mode	-	-	-	-
ESR (Equivalent Series Resistance)	-	-	-	-

445C33H13M00000 Datasheet PDF

Download 445C33H13M00000 pdf datasheets and CTS-Frequency Controls documentation for 445C33H13M00000 - CTS-Frequency Controls.

Datasheets: 445 Series Datasheet.pdf
Environmental Information: RoHS Glass Seal Crystal.pdf CTS Corp REACH.pdf

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Customer Reviews

Evaluation: 10 Articles

Nord***mbedded

Jul 20, 2026

Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.
Arch***ct

Jul 15, 2026

Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.
FPGA***lorer88

Jul 7, 2026

The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.
Nath***oleman

Jun 29, 2026

Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.
Emil***rperTech

Jun 23, 2026

Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.
Liam***terTech

Jun 15, 2026

Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.
Nath***rooks

Jun 11, 2026

Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.
Dani***alkerTech

Jun 1, 2026

Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.
Yuki***aka88

May 26, 2026

信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。
Stev***aker

May 20, 2026

Solid diode for power rectification. Works well in switching circuits.

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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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Electrostatic Discharge Protection and Handling

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