High-speed Unipolar Detection Type Hall Effect Switch IC S-57B1 Series

The S-57B1 Series, developed by CMOS technology, is a high-accuracy Hall effect switch IC that operates with a high-sensitivity, a highspeed detection and low current consumption. The output voltage changes when the S-57B1 Series detects the intensity level of flux density. Using the S-57B1 Series with a magnet makes it possible to detect the open / close and rotation state in various devices. High-density mounting is possible by using the small SOT-23-3 package. Due to its high-accuracy magnetic characteristics, the S-57B1 Series can make operation's dispersion in the system combined with magnet smaller.

Magnetic simulation service
ABLIC Inc. offers a “magnetic simulation service” that provides the ideal combination of magnets and our magnetic sensor ICs for customer systems. Our magnetic simulation service will reduce prototype production, development period and development costs. In addition, it will contribute to optimization of parts to realize high cost performance.
For more information regarding our magnetic simulation service, refer to “Introduction of Magnetic Simulation Service.” For usage inquiries, contact our sales representatives.


Pole detection
Detection of S pole
Output logic*1
Active " L ", active " H "
Output form*1
Nch open drain output, CMOS output
Magnetic sensitivity*1
Bop = 3.0 mT typ.
Bop = 4.5 mT typ.
Bop = 7.0 mT typ.
Operating cycle
tcycle = 50 μs typ.
Power supply voltage range
Vdd = 2.7 V 〜 5.5 V
Operation temperature range
Ta = −40°C to +125°C
Lead-free (Sn 100% ), halogen-free

*1. The Option can be selected.


  • Motor
  • Housing equipment
  • Industrial equipment

Parts List

  • U(Ux), S and G at the end of the product name of ABLIC Inc. were used to indicate different material specifications as “environmental code”,
    however, these have now been unified into “lead-free and halogen-free” and are identical in terms of environmental quality.
  • Note: Lead-free plating other than 100% Sn is applied to some limited old products, therefore, please contact our sales representatives for details.
  • These descriptions may be different from the actual product name and parameter.
    Please confirm the product name and specifications with the data sheet again.
  • The information herein is subject to change without notice.