This document is about the specification of product QEHC49H3 HC49/S Crystal, including electrical characteristics, mechanical characteristics, ordering information, etc.
The QEHC49H3 is a HC49/S through‑hole crystal offered by TEMEX. This document provides the full set of electrical characteristics, such as frequency range, tolerance, temperature stability and drive level, together with mechanical dimensions and vibration/shock ratings.
Ordering information, radial taping specifications and detailed ESR versus frequency data are also included, allowing designers to select the appropriate part and verify compliance with RoHS and relevant standards.
| Frequency range | 3.200 – 66.000 MHz |
|---|---|
| Frequency tolerance (25 °C) | +10 – +50 ppm |
| Temperature stability | +10 – +50 ppm |
| Operating temperature range | -20 °C to +70 °C |
| Storage temperature range | -40 °C to +85 °C |
| Shunt capacitance | 7.0 pF |
| Load capacitance | 10 pF – 32 pF (or series) |
| Drive level | 100 – 500 W |
| Aging (first year) | +5 ppm |
| Insulator resistance | 500 MΩ at 100 VDC |
The QEHC49H3 operates from 3.200 MHz up to 66.000 MHz.
Yes, the QEHC49H3 is fully RoHS compliant.
The load capacitance is specified as 10 pF to 32 pF or in series.
The product size is 11.05 mm × 13.46 mm with a maximum thickness of 4.65 mm.