1.8V ~ 3.6V Ultra-tight Stability TCXO

  • Ideally suited for tight stability applications including GPS
  • ±0.5ppm frequency stability option
  • Supply voltage from 1.8V ~ 3.6V
  • Low power consumption
  • Miniature SM package
Configurable Options
ParameterOption Code
Frequency stability
Temperature range
Enable / disable function
Supply voltage (VDD)
Quantity / Special Request

Please specify the quantity you require below.

The GTXO-253T is supplied on tape and reel. 1k or 3k pcs per reel are the standard T&R pack sizes for this product. Partial quantities may be supplied on tape (no reel), or in bulk.

Product Description

The GTXO-253T temperature compensated oscillator is entirely suited for a range of tight stability applications including GPS as it features frequency stability as tight as ±0.5ppm, fast start up time of 3ms maximum, and a miniature 2.5 x 2.0mm package.

The GTXO-253T is available in your choice of supply voltage, from 1.8V-3.6V, and requires low supply current of 1.5~2.0mA.

This TCXO also features good phase noise characteristics and superbly low ageing of only ±1.0ppm maximum first year ageing.

Frequency range 10.0 ~ 52.0MHz
Dimensions 2.5 x 2.0 x 0.8mm
Storage temperature range -40 to +85°C
Supply voltage stability ±0.2ppm, VDD ±5%
Load stability ±0.2ppm, ZL ±10%
Frequency slope ±0.05ppm/°C over -30+85°C
Ageing ±1.0ppm max first year
Supply current 1.5~2.0mA max
Output waveform Clipped sine, 0.8V p-p, +DC offset
Test load (ZL) 10kΩ // 10pF
Start up time 3ms max
Harmonics -5dBc max
Phase noise -130dBc/Hz @ 1kHz
Frequency tolerance @ 25°C ±2.0ppm max, 60mins after reflow
Package Drawing
Ordering Information

To request a quotation for the GTXO-253T please use the configurable options form to choose the options you require and then submit your configured product to our team. Our expert advisers are always happy to help with your requirements and can be contacted on +44 1460 256 100 or at

Following product selection you will be issued with a seven character Golledge part number. Your Golledge part number is the internationally accepted Golledge manufacturing part number (MPN) that should be used for all project documentation, including bills of materials (BoMs) and purchase orders.

If you have any queries regarding any of our documentation our dedicated sales team will be happy to help.

CAD Models

Our GTXO-253T is included in the following design libraries. Click to download the library of your choice.

Enable / Disable Function
Input (pad 1)Output (pad 3)
'1' level Enabled
'0' level Disabled

Note: Pad 1 should not be allowed to float

Soldering Profile
Solder reflow profile
Tape & Reel Specification
Tape and Reel specifications
Handling & Storage

ESD-HBM-1A Human Body Model (HBM) 1A (250V to <500V)

MSL1 Moisture Sensitivity Level (MSL): 1 (or not applicable)

  • Ceramic body with gold-plated pads
  • Metal lid, seam sealed

Please refer to our DOCUMENTS section for more information.

PbFree Lead-free (< 0.1% by weight )

RoHS compliant no exempts - PS Docs Version RoHS compliant with no exemptions.

REACH - PS Docs Version REACH compliant.

Conflict minerals - PS Docs version Free of conflict minerals.

Halogen free - PS Docs version Free from halogens.

Ozone depleting - PS Docs version Free from ozone-depleting substances.