This document describes the features and characteristics of the E2U series crystals, including RoHS compliance, HC-49/US package, AT or BT cut options, resistance weld seal, tight tolerance/stability, and available options such as tape and reel, insulator tab, and custom lead length.
The E2U series crystal offers a wide frequency range from 3.579545 MHz to 50 MHz with tight tolerance and stability options such as AT or BT cuts. Electrical specifications include shunt capacitance, insulation resistance, drive level, and load capacitance values suitable for a variety of applications.
Packaging is available in bulk, tray, and tape‑and‑reel formats with custom lead lengths, and mechanical dimensions are provided in millimeters. Environmental and mechanical specifications follow MIL‑STD and EIA standards, ensuring reliability under temperature cycling, shock, and vibration.
| Frequency Range | 3.579545 MHz to 50 MHz |
|---|---|
| Frequency Tolerance / Stability (Standard) | +50 ppm / +100 ppm |
| Operating Temperature Range (Standard) | 0 °C to 70 °C |
| Shunt Capacitance | 7 pF max |
| Insulation Resistance | 500 MΩ min at 100 V |
| Drive Level | 1 mW max |
| Load Capacitance (Standard) | 18 pF |
The E2U series covers frequencies from 3.579545 MHz up to 50 MHz.
Standard operation is from 0 °C to 70 °C, with AT‑cut options extending to –40 °C to 85 °C.
The maximum drive level is 1 mWatt.