Q-Tech Corporation announced the availability of a tin-lead (SnPb) solder version of its popular AXTAL AXLE7050S temperature-compensated crystal oscillator (TCXO). Featuring the same low phase noise and radiation-hardened specs of its parent, the new AXLE7050S-PB (“PB” model) TXCO utilizes SnPb solder for the components on top of the package and an SnPb finish for the high-reliability passive components inside the package. Unlike other New Space models using pure tin, the AXLE7050S-PB TXCO mitigates tin whisker issues in satellite applications.

The AXLE7050S-PB is available in frequencies ranging from 10 to 50 MHz, with either clipped sinewave (CSW) or HCMOS output. It is manufactured in compliance with MIL-PRF-55310, Level S and is enclosed in a compact (7 x  5 x 1.8 mm) hermetically sealed package. It features high TID radiation tolerance (40 KRad(Si)) and SEL immunity (> 90 MeV), low phase noise (> -155 dB at > 100 KHz offset) and exceptional stability (< ±1 ppm over -40°C to +85°C). Utilizing SnPb solder and high-rel parts with SnPb finish, the AXLE7050S-PB assures reliable connections without the potential for tin whisker issues.

“The PB version of the AXLE7050S TXCO was developed in response to requests from our New Space customers to meet strict tin whisker mitigation requirements—especially in the U.S.,” said Henry Halang, managing director of Q-Tech’s European affiliate AXTAL. “Our new AXLE7050S-PB offers this “PB” option with the same high-reliability specs as its parent model. Since they are developed and manufactured in Europe, all AXTAL TXCOs are ITAR free.”