The ACTR3008/303.825/QCC4A is a true one-port, surface-acoustic-wave (SAW) resonator in a surface-mount ceramic QCC4A case. It provides reliable, fundamental-mode, quartz frequency stabilization i.e. in transmitters or local oscillators operating at 303.825 MHz.
The ACTR3008/303.825/QCC4A is a one‑port surface‑acoustic‑wave (SAW) resonator in a surface‑mount ceramic QCC4A case, intended for frequency stabilization in transmitters and local oscillators at 303.825 MHz. The document lists package dimensions, pin configuration, and typical application circuits for low‑power transmitters and local oscillators.
Key electrical characteristics include centre frequency range, insertion loss, quality factors, temperature stability, and maximum ratings such as case temperature, soldering temperature, and RF power dissipation. An equivalent LC model and test circuit are also provided for reference.
| Centre Frequency Range | 303.750 – 303.900 MHz |
|---|---|
| Frequency Tolerance | +75 kHz |
| Insertion Loss | 1.2 – 18 dB |
| Unloaded Q | 14,950 |
| Loaded Q | 1,950 |
| Turnover Temperature | 25 – 55 °C |
| Frequency Temperature Coefficient | 0.032 ppm/°C |
| Frequency Aging (first year) | 10 ppm/yr |
| DC Voltage Between Terminals | +30 VDC |
| Case Temperature Range | -40 to +85 °C |
| Soldering Temperature | +250 °C |
| RF Power Dissipation | 0 dBm |
| Motional Resistance | 15 – 23 Ω |
| Motional Inductance | 117.5302 µH |
| Motional Capacitance | 2.3371 pF |
| Static Capacitance (Co) | 2.25 – 2.85 pF |
The centre frequency ranges from 303.750 MHz to 303.900 MHz.
The device can operate from –40 °C up to +85 °C.
Turnover temperature is specified between 25 °C and 55 °C.
The resonator can handle up to 0 dBm of RF power dissipation.