Crystals in UM-4 and UM-5
General application
Microcomputers, audio/video-applications, wireless phones, communication devices
Features
Cases UM-4 and -5 series are highly reliable,
hermetically sealed by seam welding.
Crystals can be supplied in slim cases, see outline dimensions below.
Assembly, taping
Cases UM-4 and UM-5 series are designed for through hole mount, but can be designed for SMD too. Crystals in SMD modification can by delivered in tapes wound on reels, suitable for automatic assembly.
Typical specifications
| Type | UM-4, UM-5 | ||
|---|---|---|---|
| Overtone | 1. | 3. | 5. |
| Frequency range | 11-45MHz | 25-100MHz | 75-180MHz |
| Freq. adjustment tolerance at 25 °C | ±5, ±7, ±10, ±15, ±20, ±50 x 10-6 | ||
| Frequency stability | see table 1 | ||
| Equivalent series resistance | see table 2 | ||
| Aging | ±1, ±2, ±3 ppm/year | ||
| Storage temperature range | -40 … +90 °C | ||
| Load capacitance | series resonance, CL= 5 … 50 pF | ||
| Drive level | 10 – 1000 µW | ||
Differences from standard values and other parameters can be consulted.
Frequency stability in temperature ranges
(table 1)
| Temperature range [°C] |
Frequency stability [ppm] | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ± 2 | ± 3 | ± 4 | ± 5 | ± 7 | ± 10 | ± 15 | ± 20 | ± 25 | ± 30 | ± 40 | ± 50 | |
| +15 … +35 | ||||||||||||
| +10 … +40 | ||||||||||||
| +5 … +45 | ||||||||||||
| 0 … +50 | ||||||||||||
| -5 … +55 | ||||||||||||
| -10 … +60 | ||||||||||||
| -15 … +65 | ||||||||||||
| -20 … +70 | ||||||||||||
| -25 … +75 | ||||||||||||
| -30 … +80 | ||||||||||||
| -40 … +90 | ||||||||||||
| -55 … +105 | ||||||||||||
Outline dimensions [mm]
 |
through hole modification
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SMD modification
* available in 3-pin version
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