This document describes the features and characteristics of the C5259 VCXO product produced by Vectron International, including its applications, frequency range, frequency stability, operating temperature range, supply voltage, and RF output.
The Vectron C5259 is a voltage‑controlled crystal oscillator (VCXO) in a 5 × 7 mm ceramic package. It is intended for telecommunications and other applications requiring stable frequencies from 2 MHz to 50 MHz.
The datasheet lists electrical specifications such as supply voltage, current consumption, output signal type, and tuning range, as well as mechanical details, ordering instructions and a recommended reflow profile for surface‑mount assembly.
| Frequency range | 2 MHz – 50 MHz |
|---|---|
| Supply voltage (Vs) | 4.75 V – 5.25 VDC (typical 5.0 VDC) |
| Current consumption (<20 MHz) | 35 mA |
| Current consumption (<70 MHz) | 45 mA |
| Output signal | HCMOS |
| Load capacitance | 15 pF |
| Rise and fall time | 10 ns @ 15 pF |
| Duty cycle | 40 % – 60 % @ Vs/2 |
| Tuning range | +50 ppm – +90 ppm (typical) |
| Control voltage range (Vs=3.3 VDC) | 0.0 V – 1.65 VDC |
| Absolute maximum supply voltage | 7 V |
| Operating temperature range | -30 °C to +80 °C |
The device operates from 4.75 V to 5.25 VDC, with a typical value of 5.0 VDC.
A standard reflow profile for SMD oscillators should be used, and the part must be on the top side of the PCB during reflow.
Use the ordering worksheet to specify model, stability code, supply voltage code, tuning range and package code; the typical part number is C5259A1‑0001.