Yujie Underwater Transducers
Yujie underwater transducers are engineered for depth sounders, fish finders, sonar systems, and underwater positioning applications, delivering precise acoustic performance with single and dual-frequency options from 43 kHz to 200 kHz.
Features & Applications
Yujie's Professional Components for Marine & Sonar Applications
Marine Depth Sounders
High-performance transducers designed for marine depth measurement and sonar applications
HJ200KH-P
Frequency: 200 kHz
Rated Power: 250 W
Housing: Plastic
Ideal For: Small Vessels, Fish Finders
CS-220KH
Frequency: 43/200 kHz (Dual)
Rated Power: 400W / 600W
Beamwidth: 40° / 9°
Ideal For: Professional Marine Sonar
Why Choose Yujie Underwater Transducers
Yujie's transducers are engineered for reliable performance in demanding marine environments
Marine-Grade Durability
Built to withstand harsh saltwater conditions and underwater pressure
Multi-Frequency Options
Single (200 kHz) and dual-frequency (43/200 kHz) configurations available
Precision Depth Measurement
Accurate depth readings with optimized beam patterns for various applications
OEM Customization
Custom specifications and mounting options for integration into your systems
Need Marine Transducer Selection Support?
Share vessel type, depth range, installation constraints, and interface requirements. We will match a suitable underwater transducer configuration.
Yujie Underwater Transducer Applications
Yujie underwater transducers enable accurate acoustic sensing across diverse marine applications worldwide
Selecting an Underwater Transducer: An Engineer's Checklist
Depth rating and waterproof rating are not the same specification. An IP-rated housing keeps splash and immersion out at shallow depth, while a pressure-rated assembly must survive sustained hydrostatic load at the working depth — the potting compound, housing wall, and cable gland all participate in that rating. When you request a quote, state the maximum deployment depth and whether the duty is continuous or intermittent so the housing and potting can be engineered accordingly.
Duty also decides the ceramic. A projector that transmits sonar pulses is driven hard and favours a low-loss hard ceramic that stays cool under sustained excitation, while a receive-only hydrophone element prioritises sensitivity. Echo-sounding duties combine both, which is why transmit power, receive sensitivity, and beam pattern should be specified together rather than in isolation.
Finally, plan the electrical interface early: cable length affects capacitance and therefore tuning, connectors must match the vessel or buoy side, and impedance matching to the driver stage is usually settled during sample evaluation. Yujie supplies matched transmit/receive pairs and custom cable terminations for OEM builds.
Common sourcing questions
Can the housing and cable exit be customised? Yes — housing material, cable length, connector type, and mounting thread are standard customisation items on OEM orders; send your interface drawing with the RFQ.
Do you supply matched pairs for transit-time or communication links?Matched transmit/receive pairs can be selected and documented at the factory on request.
Fresh water versus seawater — does it change the build? Seawater service typically calls for different housing materials and anti-corrosion finishes; specify the medium and expected service life in your enquiry.
Need a Custom Marine Solution?
Yujie's engineering team can help you select the right transducer for your marine application or develop custom solutions for your specific requirements.