A-TC333B CHIRP Bronze Through-Hull Transducer with Tilted Element

Built for the water. Not for the brochure.

At OVA, we build marine sensing gear for people who work on the water-not for spec sheets that look pretty in a catalog. The A-TC333B is a high-power broadband CHIRP through-hull transducer made for professional echo sounder applications. Bronze housing. Four CHIRP bands. Up to 1 kW. And a tilted element that keeps the beam where it belongs: straight down, even when the hull isn't.

If you've ever watched a depth number jump around while the boat rolls, you already know why the tilted element matters. Available in 0°, 12°, and 20°, it compensates for hull deadrise and cruising trim. No more skewed bottom lines. No more smeared fish arches. Just a cleaner picture, from the shallows to the deep.

The A-TC333B covers Low (40–60 kHz), Medium (85–135 kHz), High (130–210 kHz), and High-Wide (150–250 kHz). Low gets you down deep. Medium keeps depth and detail in balance. High and High-Wide bring sharp close-range resolution for fish, seabed structure, and underwater obstacles. With 1 kW of power, it's built to show you what matters at different depths-not just a pretty screen.

The bronze body is not decoration. It's there for saltwater, vibration, and long-term duty on commercial fishing boats, work vessels, and leisure yachts. The 10-meter factory-fitted cable makes through-hull installation straightforward. The compact footprint fits most standard hull cutouts. We keep the design simple because reliability beats drama.

Key Specifications

Model: A-TC333B
Frequency Bands: CHIRP L (40–60 kHz), M (85–135 kHz), H (130–210 kHz), HW (150–250 kHz)
Rated Power: 1 kW
Housing Material: Bronze
Tilt Options: 0°, 12°, 20°
Cable Length: 10 m

FAQ

Q1: What tilt angle should I pick for my boat?
A: Let your hull decide. If the bottom is nearly flat, go 0°. If you have steep deadrise, look at 12° or 20°. The goal is simple: keep the sonar beam pointing straight down when the boat is at cruising trim. Wrong tilt means skewed depth and poor imaging. Measure your deadrise before ordering-or ask us, and we'll help you choose.

Q2: Is this bronze transducer suitable for saltwater?
A: Yes. Bronze is exactly what you want in saltwater. It resists seawater corrosion and works in both salt and freshwater. Keep the face clean. Marine growth will slowly choke the acoustic signal, and no amount of power can fix a dirty transducer.

Q3: Which sonar systems can pair with the A-TC333B?
A: Any marine echo sounder or fish finder that supports CHIRP within our frequency range and can handle the 1 kW power rating. Check your display unit before integration. If you're not sure, send us the model-we'll tell you straight.

Q4: Can I shorten or extend the 10 m factory cable?
A: Please don't. The cable impedance is tuned at the factory. Cutting or extending it adds signal loss and noise, and it will degrade CHIRP imaging. If you need a custom length, tell us when you order. Do it once, do it right.

Q5: What hull thickness does this through-hull transducer fit?
A: See our dimension drawing for full installation dimensions. It's made for standard fiberglass, wood, and metal hulls. For thick hulls or reinforced sections, confirm thread length with our engineering team before drilling. Measure twice. Drill once.

Q6: What's the difference between CHIRP L, M, H, and HW bands?
A: L (40–60 kHz) punches deep. M (85–135 kHz) balances depth and target detail. H (130–210 kHz) and HW (150–250 kHz) sharpen close-range imaging for fish and fine seabed features. Switch bands based on water depth and the job in front of you.

Q7: Does this transducer come with mounting accessories?
A: The standard package includes the bronze transducer, 10 m cable, mounting gaskets, and nuts. Custom installation fittings are available on request.

Bottom line
If you're upgrading old sonar hardware or spec'ing a new build, the A-TC333B is the kind of transducer you install once and forget about-in the best way. Bronze. CHIRP. Tilted. Built for the water, not the brochure.

Hot Tags: chirp transducer, manufacturers, suppliers, wholesale, custom, buy, best, price, on sale, for sale, 1kw transducer, boat transducer, depth sounder transducer, depth transducer marine, Marine Transducer 200khz, Stainless Steel Transducer