AH3661
Magnetic Displacement Sensor
Digital Type
Mixture
RoHS
Non-Customized
Switching Sensor
Magnetic Sensor
AHNJ
Plastic Bag
ROHS, REACH
China
8542319099
Product Description
Features and Benefits
Digital output, omnipolar latch
Stable over the entire temperature range
Low operating voltage range: 2.5V ~ 5.5V
Strong resistance to mechanical stress
Non-contact output, safety and reliable
Operating temperature range: -40ºC ~ 85ºC
TO-92UA and SOT-23-3L package options
Developed according to the EU RoHS and REACH
Application Examples
Automotive electronics, Consumer electronics and Industrial electronics
Water flow sensing
Liquid level detection
Position sensing
Hand-held equipment (Cellphone, Pan-Tilt, Notebook, etc.)
Contactless key/button
Bluetooth headset
Door latch system
General Description
The AH3661 is a digital omnipolar-latch Hall IC with single output. It has good temperature stability and operates over a temperature range of -40°C to 85°C with latch function.
The AH3661 Hall-effect sensor includes the following on a single silicon chip: reverse voltage protector, voltage regulator, temperature compensation circuit, Hall-voltage generator, signal amplifier, Schmitt trigger and open-drain output driver, etc.
The AH3661, produced with CMOS technology, is asked for lower supply voltage and less power supply. It is available in two package types: SOT-23-3L (Type M) and TO-92UA (Type UA). Each package is lead (Pb) free, with 100% matte tin plated leadframes.
Low Average Power
Internal timing circuit activates the IC for 45 μs and deactivates it for the remainder of the period (45 ms). A short "awake" time allows for stabilization prior to the sampling and data latching on the falling edge of the timing pulse. The output during the "sleep" time is latched in the last sampled state. The supply current is not affected by the output state.





Digital output, omnipolar latch
Stable over the entire temperature range
Low operating voltage range: 2.5V ~ 5.5V
Strong resistance to mechanical stress
Non-contact output, safety and reliable
Operating temperature range: -40ºC ~ 85ºC
TO-92UA and SOT-23-3L package options
Developed according to the EU RoHS and REACH
Application Examples
Automotive electronics, Consumer electronics and Industrial electronics
Water flow sensing
Liquid level detection
Position sensing
Hand-held equipment (Cellphone, Pan-Tilt, Notebook, etc.)
Contactless key/button
Bluetooth headset
Door latch system
General Description
The AH3661 is a digital omnipolar-latch Hall IC with single output. It has good temperature stability and operates over a temperature range of -40°C to 85°C with latch function.
The AH3661 Hall-effect sensor includes the following on a single silicon chip: reverse voltage protector, voltage regulator, temperature compensation circuit, Hall-voltage generator, signal amplifier, Schmitt trigger and open-drain output driver, etc.
The AH3661, produced with CMOS technology, is asked for lower supply voltage and less power supply. It is available in two package types: SOT-23-3L (Type M) and TO-92UA (Type UA). Each package is lead (Pb) free, with 100% matte tin plated leadframes.
Low Average Power
Internal timing circuit activates the IC for 45 μs and deactivates it for the remainder of the period (45 ms). A short "awake" time allows for stabilization prior to the sampling and data latching on the falling edge of the timing pulse. The output during the "sleep" time is latched in the last sampled state. The supply current is not affected by the output state.
Type | Manufacturing Techniques | Output State | Packing | Supply Curent (μA) | Load (mA) | Operating Voltage (V) | BOP (mT) | BRP (mT) | BH (mT) | Operating Temperature (ºC) |
AH3661 | CMOS | Open drain | SOT23/TO92 | 2.8 | 1 | 2.5~5.5 | ±4 | ±2.7 | 1.3 | -40~85 |
AH3662 | CMOS | 100k pull-up | SOT23/TO92 | 6.0 | 1 | 2.5~5.5 | ±2 | ±1 | 1.0 | -40~85 |
AH3663 | CMOS | Open drain | SOT23/TO92 | 6.0 | 1 | 2.5~5.5 | ±2 | ±1 | 1.0 | -40~85 |
AH3664 | COMS | Open drain | SOT23/TO92 | 1.0 | 1 | 1.65~5.5 | ±3 | ±2 | 1.0 | -40~85 |
Type | Manufacturing Techniques | Output State | Packing | Supply Curent (mA) | Load (mA) | Operating Voltage (V) | BOP (mT) | BRP (mT) | BH (mT) | Operating Temperature (ºC) |
AH3931 | CMOS | Open drain | SOT23/TO92 | 1.5 | 5 | 2.5~22V | ±3 | ±1.5 | 1.5 | -40~85 |




