TSX (THERMISTOR CRYSTAL)
QO Series 1.6 × 1.2 mm SMD Crystal-TSX designed for Smart phone, Smart wearable, and GNSS applications.

QO1612 1.6 × 1.2 mm SMD Crystal-TSX
QO1612 is a passive 1.6 × 1.2 mm SMD crystal resonator with a built-in thermistor in the QO Series; it requires an external oscillator circuit. The datasheet specifies a reliable seam-sealed ceramic package, wide operating temperature, built-in thermistor, and complete Pb-free construction.
Quick Product Answers
What is QO1612?
QO1612 is a passive 1.6 × 1.2 mm SMD crystal resonator with a built-in thermistor in the QO Series; it requires an external oscillator circuit. The datasheet specifies a reliable seam-sealed ceramic package, wide operating temperature, built-in thermistor, and complete Pb-free construction.
What are the key specifications of QO1612?
Nominal frequency range: 38.400 MHz / 52.000 MHz / 76.800 MHz; Operating temperature range: 38.400 MHz: -30°C to +105°C; 52.000 MHz: -40°C to +105°C; 76.800 MHz: -40°C to +85°C; Frequency tolerance at 25°C ± 3°C: ±10 ppm.
What applications is QO1612 intended for?
QO1612 is listed for Smart phone, Smart wearable, GNSS.
How should engineers select QO1612?
Select QO1612 only when its documented frequency, package size, operating-temperature range and tolerance or stability match the design. Where applicable, also verify load capacitance, supply voltage and output waveform in the datasheet.
- Model
- QO1612
- Package size
- 1.6 × 1.2 mm
- Nominal frequency
- 38.400 MHz / 52.000 MHz / 76.800 MHz
- Oscillation mode
- Fundamental (AT-cut)
- Frequency tolerance
- ±10 ppm
- Operating temperature
- -30°C to +105°C / -40°C to +105°C / -40°C to +85°C
Product Features
Applications
Technical Specifications
| Model | QO1612 |
|---|---|
| Nominal frequency range | 38.400 MHz / 52.000 MHz / 76.800 MHz |
| Oscillation mode | Fundamental (AT-cut) |
| Frequency tolerance at 25°C ± 3°C | ±10 ppm |
| Operating temperature range | 38.400 MHz: -30°C to +105°C; 52.000 MHz: -40°C to +105°C; 76.800 MHz: -40°C to +85°C |
| Frequency stability over temperature (Ref. to 25°C) | 38.400 MHz: ±12 ppm at -30°C to +85°C; 52.000 MHz: -12 to +10 ppm at -30°C to +85°C / -30 to +10 ppm at -40°C to +85°C / -30 to +40 ppm at -40°C to +105°C; 76.800 MHz: ±20 ppm |
| Storage temperature range | -40°C to +105°C |
| Equivalent series resistance | 38.400 MHz: 80 Ω max.; 52.000 MHz: 30 Ω at -30°C to +95°C / 35 Ω at -40°C to -30°C and +95°C to +105°C; 76.800 MHz: 50 Ω max. |
| Tuning sensitivity | 7-16 ppm/pF / 9-15 ppm/pF / 10-15 ppm/pF |
| Spurious mode series resistance | 1100 Ω (±1 MHz) |
| Q factor | 75K min. / 55K min. / 50K min. |
| Insulation resistance | 500 MΩ min. (at DC 100 V) |
| Reflow | ±2 ppm (after 3 reflows) |
| Inflection point | 27.5-30.5°C / 25.5-28°C (27°C type) / 22.5-26.5°C |
| Load capacitance | 8 pF / 8 pF / 7 pF |
| Drive level max. | 200 µW / 230 µW / 250 µW |
| Aging at first year | ±0.7 ppm |
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