This LOT is one piece of New Ocean Microwave 900MHz Stripline Drop-In Circulator, Part Number: UD8389-C-1. This is old product line, for high power amplifier application. Data sheet not available. Based on part number, seems at least for 830-890MHz. However, I did test using Network Analyzer on this circulator, useful in 820-950MHz. I made a test board and run a test, see plots for detail. Note: first plot is PORT 1 to PORT 2 (that is S21 is from network analyzer port 1 to port 2). Second plot is PORT 1 to PORT 3, and last one is PORT 2 to PORT 3. A 50 Ohm terminator on the 3rd port when use network analyzer.

The sale is for Circulator only, no PCB included. The PCB in pictures just my own home made for testing, not included in the sale.

Size: 1.25"x1.25"x0.35" (31.75x31.73x9.00mm).