The JR series is a set of half-turn air trimmer capacitors with capacitance ranges from 1.5 pF to 50 pF and a DC working voltage of 125 V at maximum capacitance. The devices operate from -40°C to +85°C and meet RoHS compliance. Each variant has a minimum Q factor of 500 at 1 MHz, except JR300 through JR500, which have a Q of 200. The temperature coefficient varies by model, from 0 ± 200 ppm/°C to -1500 ± 1000 ppm/°C. The parts are furnished on 12 mm tape and reel, with 1000 pieces per reel, and feature a soldering profile compatible with lead-free reflow. Tuning torque is specified from 0.14 to 1.00 in•oz. The mechanical outline is designed for surface mounting with a suggested solder paste thickness of 0.15 mm.
Knowles Precision Devices's Voltronics Brand has been offering high performance, high Q, half turn trimmer capacitors for over 2 decades. The J series is a proven performer that delivers uncompromising stability for even the most demanding applications, such as RFID, medical devices, cellular technologies, tunable filter circuits and much more.
Available in standard and HV ranges offer up to 50pF and 350V DC working voltage. Whilst not meeting the ultimate non-magnetic specifications of other parts offered the J series have a very low magnetic material content and are widely used in MRI applications. Of the two series the JZ variant has the lowest magnetic content.
| Knowles | |
|---|---|
| Product Category | Capacitors |
| Product Name | JR Series Half Turn |
| Configuration / Form Factor | Leaded Capacitor |
