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Diodes Pericom: A product line of Diodes Incorporated

Product Description

The JT255 TCXO series is a high performance temperature compensated oscillator with a clipped sinewave output for a very low operating supply current. It supports various power supply voltages, stabilties and other features. It is designed to meet existing application requirements.


  • Low Current
  • Tight temperature stability
  • Clipped Sinewave output levels
  • Excellent Phase Noise
  • Industrial Temperature Range
  • Pb-free and RoHS/Green compliant
  • Fast lead time


  • Networking systems
  • Networking
  • GPS/Navigation
  • Metering
  • Mobile and wireless
  • Handset

Product Specifications

Product Parameters

ProductSeries JT
Family TCXO
Supply Voltage (volt) 1.8 - 3.3
Temp Stability (ppm) 0.5 - 5.0
Operating Temp (°C) -125
Freq Range (MHz) 10 to 52
Package Size 2.5 x 2.0 x 0.8
Supply Current (mA) 1.5 Max (≤ 26MHz); 2.0 Max (>26MHz)
StabilityVoltage 0
StabilityLoad 0
Harmonics 0
Pads 4
NotRecommended 0

Quality & Reliability

Technical Documents

Recommended Soldering Techniques

Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents

Request Documents
Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
JT2551T0039.000000 Digi-Key Electronics 359 2/21/2019 Buy Now Americas
JT2553P0016.369000 Arrow Electronics 1 2/22/2019 Buy Now Americas
JT255BI0032.000000 Arrow Electronics 2900 2/22/2019 Buy Now Americas
JT255BI0032.000000 Mouser Electronics Inc. 2938 2/22/2019 Buy Now Americas
JT255BI0032.000000 Digi-Key Electronics 7829 2/21/2019 Buy Now Americas



Is there a replacement for an obsolete part?

Not all obsolete parts will have a direct replacement. However, we recommended that you contact your regional sales office.

What are the causes of jitter?

Jitter can be cause by: poor decoupling to the Vcc and GND, signal source with heavy jitter, slow edge rate which will provide additional time to introduce jitter to the signal. Additional information can be found in Application Note 24: Designing for Minimal Jitter when using Clock Buffers

What are the types of jitter?

There are several types of jitter, but the main ones are: cycle-to-cycle jitter, period jitter, half period jitter, and peak-to-peak jitter. Jitter terminology can be found in AB36: Jitter Measurement Techniques at Application Brief No. 36 or Application Note No. 27.

What does "TCXO" mean?

TCXO means "Temperature Compensated Crystal Oscillator" A TCXO is essentially a quartz crystal integrated with compensation electronic circuitry sensitive to temperature variation. The compensation circuitry helps TCXO maintain high frequency stability over temperature (0.5ppm - 5ppm)


What is cycle-to-cycle jitter?

Cycle-to-cycle jitter is the difference in the clock's period between two consecutive cycles and is expressed in units of + pico-seconds. This is because it can be either leading or lagging from the ideal output waveform.

What is FCP XO product?

FCP is Frequency Control Product. They include crystals, crystal oscillators (XO), voltage control oscillators (VCXO), and TCXO. XO has IC and crystal integrated together as a component for quality easy use in system designs. For more product information, please visit company website: https://www.diodes.com/products/connectivity-and-timing/crystal-and-crystal-oscillator/


What is half-period jitter?

Half-Period Jitter is the measure of maximum change in a clock's output transition from its ideal position during one-half period. It is measured as: tjit(half-period) = thalf-period n – 1/2 ƒo, where ƒo is the frequency of the input signal.

What is the lead finish for Pericom products? What about lead-free?

All Pericom's products that are not lead-free are composed of 85% Sn and 15% Pb. For lead-free products, they are composed of 100% matte Sn. Lead-free products are marked and ordered with the letter "E" suffix at the end of the part number.

Where can I find Mean Time Before Failure (MTBF) or Failures In Time (FIT) values for Pericom products?

FIT and MTBF data can be found at Pericom's Quality webpage.

Where can I find the information on your Pb-free and "Green" packaging?

Lead (Pb)-Free and Green information can be found on individual datasheets or Pb-Free & Green Page.