Many manufacturers have discontinued the production of old lead pin type crystal units and crystal oscillators. KDK has many industrial equipment customers and plans to continue production to ensure a stable supply. Please consider using it as an alternative to the discontinued products of other companies.
Crystal lead type
| series | shape | Nominal frequency | frequency deviation (25°C ±ppm) |
Frequency stability (25°C ±ppm) |
Features | temperature range ℃ |
data sheet |
Model list | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | Max | |||||||||||
| HC-49/U |  |
1.8 | 225 | 30 | 50 | Electrodeposition sealing package |
-20～+70 |  |
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| HC-49/S3 |  |
3.2 | 70 | 30 | 50 | Electrodeposition sealing package |
-10～+60 | |
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crystal oscillator lead type
| series | shape | Frequency (MHz) | Power-supply voltage (V) |
Frequency stability (ppm) |
pin | temperature range ℃ |
data sheet |
Model list | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | Max | |||||||||||
| HHC(W) HHT(W) |
 |
1.8 | 80 | 5.0 | 50 100 |
8pin | -10～+70 -40～+85 |
|
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| KHC(W) |  |
1.8 | 80 | 5.0 | 25 50 100 |
14pin | -10～+70 -40～+85 |
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| HAT(W) |  |
1.8 | 80 | 5.0 | 25 50 100 |
14pin | -10～+70 -40～+85 |
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