Product Overview
The SS340RT/SS440R are unipolar digital Hall-effect sensor ICs designed for sensing and control applications. They offer reliable switching based on magnetic field strength.
Product Attributes
- Brand: Honeywell
- Product Series: SS340RT/SS440R
Technical Specifications
| Characteristic | Condition | Min. | Typ. | Max. | Unit |
| Supply voltage | SS340RT | 3 | 12 | Vdc | |
| SS340RT | 3 | 24 | Vdc | ||
| SS440R | 3 | 24 | Vdc | ||
| Supply current | Vsupply = 5 V at 25 C [77 F] | 4 | 6 | mA | |
| Vsupply = 3 V at 25 C [77 F] | 3.5 | 5 | mA | ||
| Vsat | 20 mA, Gauss >Bop | 0.4 | Vdc | ||
| Output leakage current | Gauss >Bop | 10 | A | ||
| Output switching time | rise | 1.5 | s | ||
| fall | 1.5 | s | |||
| Thermal resistance | SS340RT (SOT-23) | 303 | C/W | ||
| SS440R (flat TO-92-style) | 233 | C/W | |||
| Operate | SS341RT/SS441R | 35 | 135 | Gauss | |
| SS343RT/SS443R | 45 | 205 | Gauss | ||
| SS349RT/SS449R | 240 | 460 | Gauss | ||
| Release | SS341RT/SS441R | 10 | 35 | Gauss | |
| SS343RT/SS443R | 40 | 85 | Gauss | ||
| SS349RT/SS449R | 135 | 225 | Gauss | ||
| Differential | SS341RT/SS441R | 5 | 80 | Gauss | |
| SS343RT/SS443R | 5 | 120 | Gauss | ||
| SS349RT/SS449R | 30 | 170 | Gauss | ||
| Operating temperature | -40 | 150 | C [F] | ||
| Storage temperature | -40 | 150 | C [F] |
Absolute Maximum Ratings
| Characteristic | Min. | Typ. | Max. | Unit |
| Supply voltage | -28.0 | 28.0 | V | |
| Applied output voltage | -0.5 | 28.0 | V | |
| Output current | 20 | mA | ||
| Magnetic flux | no limit | Gauss |
Soldering/Assembly
SS340RT: Use an infrared reflow process with temperatures of 245 C [473 F] peak for 10 s max.
SS440R: PC board wave soldering temperature is 250 C to 260 C [482 F to 500 F] peak for 3 s max.
CAUTION: Ensure leads are adequately supported during any forming/shearing operation so that they are not stressed inside the plastic case. Limit exposure to high temperatures.
CAUTION: ELECTROSTATIC DISCHARGE DAMAGE. Ensure proper ESD precautions are followed when handling this product.
2410121847_Honeywell-SS343RT_C396071.pdf
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