CMX309FLC4.000M-UT The CMX309FLC4.000M-UT is a 4 MHz crystal oscillator (XO) with CMOS/TTL output, 5V supply, and ±100ppm frequency stability. It comes in a surface-mount 4-SOJ package.
Mfr Part #:

CMX309FLC4.000M-UT

Available from 2 distributors
Mfr Name: Citizen Finedevice
Citizen Finedevice
The CMX309FLC4.000M-UT is a 4 MHz crystal oscillator (XO) with CMOS/TTL output, 5V supply, and ±100ppm frequency stability. It comes in a surface-mount 4-SOJ package.
Total Stock: 455 pcs
$ Price Range: $1.13

CMX309FLC4.000M-UT Available from 2 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
330 pcs
330 pcs On Request 1 On Request On Request 638 On Request On Request
Non-Authorised Inventory information
125 pcs
125 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

CMX309FLC4.000M-UT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Base Resonator
Current
Frequency
Frequency Stability
Function
Height
Lead Spacing
Lead Style
Length
Mounting Type
Operating Temperature
Output
Tape & Reel
Type
Voltage
Width

CMX309FLC4.000M-UT Description

Short technical summary and product information.

The CMX309FLC4.000M-UT is a standard crystal oscillator (XO) from Citizen Finedevice. It operates at a nominal frequency of 4 MHz with a frequency stability of ±100ppm. The output is compatible with both CMOS and TTL logic levels, making it suitable for a wide range of digital circuits.

 

The oscillator requires a nominal supply voltage of 5V and draws a typical supply current of 23mA. It includes an enable/disable function, allowing the output to be controlled as needed. The operating temperature range is -10°C to 70°C, suitable for standard commercial environments.

 

The device is housed in a 4-SOJ surface-mount package with a 5.08mm pitch. Its dimensions are 13.90mm x 8.65mm with a height of 4.70mm. The surface-mount design facilitates automated assembly and space-efficient PCB layouts.

CMX309FLC4.000M-UT Quick Information

Product Type: Oscillator
Series: CMX-309
Canonical Name: Crystal Oscillator XO 4 MHz CMOS/TTL 5V Surface Mount
Subcategory: Crystal Oscillator

CMX309FLC4.000M-UT Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

CMX309FLC4.000M-UT Estimated Pricing

Qty Low High
1,000+ $1.13 $1.13

Estimated market price range - modelled values for guidance only, not live distributor offers.

CMX309FLC4.000M-UT Features

  • 4 MHz crystal oscillator output.
  • CMOS and TTL compatible output.
  • 5V nominal supply voltage.
  • ±100ppm frequency stability.
  • Enable/disable function included.

CMX309FLC4.000M-UT Applications

  • Clock generation for digital circuits.
  • Timing reference for microcontrollers.
  • Suitable for industrial control systems.
  • Used in communication equipment.

CMX309FLC4.000M-UT FAQs

7 frequently asked questions generated from this part’s specifications.
What is the frequency of the CMX309FLC4.000M-UT?

The nominal frequency is 4 MHz.

What is the frequency stability of this oscillator?

The frequency stability is ±100ppm.

What output logic does the CMX309FLC4.000M-UT support?

It supports CMOS and TTL output logic.

What is the supply voltage for this oscillator?

The nominal supply voltage is 5V.

What is the operating temperature range?

The operating temperature range is -10°C to 70°C.

What is the package type and mounting style?

It comes in a 4-SOJ surface-mount package with 5.08mm pitch.

Is the CMX309FLC4.000M-UT RoHS compliant?

The part is listed as RoHS3 compliant, but this is unverified and should be confirmed with the manufacturer.

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