Features:
- Standard 1MHz nominal frequency for low-frequency timing applications.
- Tight ±30 PPM frequency tolerance for accurate performance.
- 20 pF load capacitance for compatibility with common oscillator designs.
- 500 Ω ESR suitable for low-frequency operation.
- Wide operating temperature range from −20 °C to +70 °C.
- Industry-standard HC-49/U through-hole metal can package for durability.
- Long-term frequency stability with low aging rate.
- Ideal for communication devices, measurement instruments, and control systems.
Specifications:
| Parameter | Specification |
|---|---|
| Type: | Quartz Crystal Oscillator |
| Package: | HC-49/U |
| Nominal Frequency: | 1MHz (1000 kHz) |
| Load Capacitance (CL): | 20 PF |
| Frequency Tolerance: | ±30 PPM at 25 °C |
| Frequency Stability: | ±30 PPM over −20 °C to +70 °C |
| Operating Temperature: | −20 °C to +70 °C |
| Storage Temperature: | −40 °C to +85 °C |
| Shunt Capacitance (C0): | ≤7 pF |
| Drive Level: | 100 µW , Max. 1 mW |
| Equivalent Series Resistance (ESR): | ≤500 Ω |
| Aging: | ±5 PPM/year |
| Mounting Style: | Through Hole |
| Pin Count: | 2 |
Dimensions:

Applications:
- Clock source for low-frequency microcontroller and processor systems.
- Frequency reference in communication equipment and RF devices.
- Timing control in oscillator circuits.
- Synchronization in data transmission and serial communication systems.
- Precision timing for measurement instruments and test equipment.
- Use in industrial automation, process control, and monitoring systems.
- Embedded systems requiring stable low-frequency timing signals.
Package Contents:
- 1x Crystal 1MHz 30PPM 20pF 40Ω HC-49U JA5


