The document describes the features of the TC-350 series low profile TCXOs, including frequency range, temperature compensation, low profile size, aging rate, and operating voltage. The product is suitable for SMC clocks, SONET/SDH network timing sources, wireless communications, satellite communications, and portable test equipment.
The TC-350 series low‑profile Temperature Compensated Crystal Oscillators (TCXOs) from Vectron are surface‑mount devices covering frequencies from 1 MHz to 77.76 MHz. Key features include ±1.0 ppm stability from –40 °C to +85 °C, a 3.81 mm low‑profile height, aging of less than 5 ppm over ten years, and operation from either 3.3 Vdc or 5 Vdc with TTL/HCMOS outputs.
The datasheet details package dimensions (22.86 × 17.78 × 3.81 mm), typical current draw (~10 mA), output voltage levels, rise/fall times, and recommended convection reflow profiles for reliable soldering. Ordering information, shipping methods, handling precautions, and ESD thresholds are also provided.
| Frequency range | 1 to 77.76 MHz |
|---|---|
| Frequency stability | ±1.0 ppm, –40 °C to +85 °C |
| Profile height | 3.81 mm (0.15 in) |
| Aging | <5 ppm for ten years |
| Supply voltage | 3.3 Vdc or 5 Vdc |
| Output type | TTL/HCMOS |
| Package dimensions | 22.86 × 17.78 × 3.81 mm (0.90 × 0.70 × 0.15 in) |
| Typical current draw | ≈10 mA |
| Rise/Fall time | 5 ns max / 10 ns max |
| Temperature stability option B‑507 | +5.0 × 10⁻⁶ over 0 °C to +50 °C |
The TC-350 series covers frequencies from 1 MHz to 77.76 MHz.
The device can operate from either 3.3 Vdc or 5 Vdc.
Typical current draw is about 10 mA, varying with frequency and output type.
A convection reflow profile with a pre‑heat of >30 s, soak of 60‑90 s, and peak at 150‑170 °C before reaching >200 °C is recommended.