OH34N Unipolar Hall Effect IC (N Pole):OH37 Unipolar Hall Effect Switch IC

更新时间：2026-08-22 14:58:17

OH34N Unipolar Hall Effect IC (N Pole)

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型号：OH34N
品牌：OH ouzhuo
General Description:
Part No.: OH34N Operate temperature: -40～125℃ Package:3000pcs/reel

OH34N Hall switch IC is internally consisted by reverse voltage protection device, voltage regulator, hall voltage generator, a differential amplifier, Schmitt trigger and the open collector output level, which can change magnetic field signal (N pole) into digital voltage output. With the typical feature of small size, stable performance, OH34N is widely used in all kinds of position control, speed detection, flow detection occasion as a non-contact switch.

Features
 4V to 24V DC operation voltage
 Open-Collector pre-driver
 25mA maximum sinking output current.
 Reverse Polarity Protection

Applications
 Speed measurement
 Home appliances
 Position detection
 Flow measurement

Absolute Maximum Ratings （TA=25℃）
Supply VoltageVCC••••••••••••••3.5-30V Operating Temperature Range TA •••••••••••-40～125℃
Output Current IO•••••••••••••••••••25mA Storage Temperature RangeTS ••••••••••••••••-55～150℃

Precautions of OH Series Hall ICS
Hall ICs are sensitive devices which performance could be influenced in some extent by magnetic, optical, thermal and mechanical stress.
1) A pull-up resistor RL should be connected between the power supply (Vcc) and the output (Vout) since most of hall ICs are open collector output (OC output) circuits, such as OH44E, OH137, OH513, OH543. Hall ICs with Build-in Resistor are not necessary to add one, for example OH921.
2) Avoid reversing the power supply (Vcc) and the output (Vout) as well as no overload use. Be careful of the burn and damage caused by instant large current and instantaneous high voltage.
3) The Protection circuit should be added in the test circuits of hall ICs, such as large capacitor and a voltage stabilizing diode, which could absorb the effects of the external circuit and power fluctuation.
4) Try to minimize the mechanical stress applied to the device and leads during the installation, especially on the pins where close to the root of the device when bending shaping etc.
5) Strictly regulate the welding temperature and time. When manual welding, the temperature of soldering iron shall not exceed 260℃and time should be less than 3 seconds.
6) When designing, please fully consider the influence factors of temperature, magnetic field attenuation, the movement way, etc.
OH37 Unipolar Hall Effect Switch ICOH41 Hall effect Latch IC OH44 Unipolar Hall Effect Switch IC1116-090-463 DEUBLIN 江苏现货供应. 江苏现货供应1205-000-025 DEUBLIN旋转接头AX115CE磁性开关现货

OH37 Unipolar Hall Effect Switch IC

型号：OH37
品牌：OH ouzhuo
OH37 Unipolar Hall Effect Switch IC
General Description:
Part No. OH37
Operate temperature: -40～85℃
Package:3000pcs/reel

OH37 Hall switch IC is internally consisted by reverse voltage protection device, voltage regulator, hall voltage generator, a differential amplifier, Schmitt trigger and the open collector output level, which can change magnetic field signal into digital voltage output. OH37, with the feature of small size (SOT23 package) and stable performance in -40～85℃, have been widely used in various fields as a non-contact switch IC.

Features
 4.5V to 24V DC operation voltage
 Open-Collector pre-driver
 25mA maximum sinking output current.
 Reverse Polarity Protection

Applications
 Speed measurement
 Home appliances
 Position detection
 Flow measurement

Absolute Maximum Ratings （TA=25℃）
Supply Voltage VCC••••••••••••••4.5-24V Operating Temperature Range TA •••••••••••-40～85℃
Output Current IO•••••••••••••••••••25mA Storage Temperature RangeTS ••••••••••••••••-55～150℃

Precautions of OH Series Hall ICS
Hall ICs are sensitive devices which performance could be influenced in some extent by magnetic, optical, thermal and mechanical stress.
1) A pull-up resistor RL should be connected between the power supply (Vcc) and the output (Vout) since most of hall ICs are open collector output (OC output) circuits, such as OH44E, OH137, OH513, OH543. Hall ICs with Build-in Resistor are not necessary to add one, for example OH921.
2) Avoid reversing the power supply (Vcc) and the output (Vout) as well as no overload use. Be careful of the burn and damage caused by instant large current and instantaneous high voltage.
3) The Protection circuit should be added in the test circuits of hall ICs, such as large capacitor and a voltage stabilizing diode, which could absorb the effects of the external circuit and power fluctuation.
4) Try to minimize the mechanical stress applied to the device and leads during the installation, especially on the pins where close to the root of the device when bending shaping etc.
5) Strictly regulate the welding temperature and time. When manual welding, the temperature of soldering iron shall not exceed 260℃and time should be less than 3 seconds.
6) When designing, please fully consider the influence factors of temperature, magnetic field attenuation, the movement way, etc.