SS400 Series Hall-effect digital position sensor IC, unipolar, low Gauss, flat TO-92-style package, formed leads, ammopack tape-in-box, 5000 units/box

The SS400 Series and SS500 Series are small and versatile digital Hall-effect devices that are operated by the magnetic field from a permanent magnet or an electromagnet, and are designed to respond to alternating North and South poles, or to a South pole only. They are available in bipolar, latching or unipolar magnetics. On-board regulation provides stable operation over a 3.8 Vdc to 30 Vdc supply voltage range. These sensors are capable of continuous 20 mA sinking output and may be cycled as high as 50 mA max. The 3.8 V capability allows for use in many potential low voltage applications. The digital, open collector sinking-type output is easily interfaced with a wide variety of electronic circuits. To provide reliable products and consistent quality, the SS400 Series products are tested at both 25°C [75°F] and 125°C [257°F]. All catalog listings are qualified for operation up to 150°C [302°F]. For design flexibility, these product are available in the following package styles:

SS400 Series: Flat TO-92-style:

  • SS4XX: Straight standard leads, bulk pack
  • SS4XX-L: Straight long leads, bulk pack
  • SS4XX-T2: Formed leads, ammopack tape-in-box
  • SS4XX-T3: Straight standard leads, ammopack tape-in-box
  • SS4XX-S: Surface mount, bulk pack
  • SS4XX-SP: Surface mount, pocket tape and reel

SS500 Series: SOT-89B, pocket tape and reel

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Produkt Merkmale


  • Quad Hall IC design minimizes mechanical stress effects
  • Temperature-compensated magnetics help provide stable operation over a wide temperature range of -40°C to 150°C [-40°F to 302°F]
  • Broad, inclusive supply voltage capability from 3.8 Vdc to 30 Vdc for application flexibility
  • Digital, open collector sinking output for easy interfacing with a variety of common electronic circuits
  • High sensitivity versions available for potential applications requiring high accuracy or wide gaps
  • Bipolar, latching or unipolar magnetics



  • Speed and RPM sensing
  • Tachometer, counter pickup
  • Flow-rate sensing
  • Brushless dc (direct current) motor commutation
  • Motor and fan control
  • Robotics control


  • Speed and RPM (revolutions per minute) sensing
  • Tachometer, counter pickup
  • Motor and fan control
  • Electric window lift
  • Convertible roof position


  • Motor assemblies
  • Medication dispensing control

Technische Daten

Series Name
Product Type
Hall-effect digital position sensor IC
Magnetic Actuation Type
Supply Voltage
3.8 Vdc to 30 Vdc
Output Voltage
0.4 Vdc max.
Supply Current
10.0 mA max.
Output Current
20 mA
Leakage Current
10 µA max.
Output Type
Operating Temperature
-40°C to 150°C [-40°F to 302°F]
Storage Temperature
-50°C to 150°C [-58°F to 302°F]
Operate Point
115 G max. (25°C)
Release Point
20 G min. (25°C)
20 G min. (25°C)
Package Type
Flat TO-92-style, formed leads, ammopack tape-in-box, 5000 units/box
Switching Time Rise (10 % to 90 %)
1.5 µs max.
Switching Time Fall (90 % to 10 %)
1.5 µs max.

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