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AH9250 (Obsolete)

Micropower Omnipolar Hall Effect Switch

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The AH9250 is a high sensitivity micropower Omnipolar hall-effect switch ICs, specifically designed for portable and battery powered consumer equipment, to home appliances and industrial applications.

Based on high/medium sensitivity hall effect plates and chopper stabilized architecture, the AH9250 provides a reliable solution over the whole operating range.

The high and Medium sensitivity hall effect switches have been optimized to operate over the supply range of 2.5V to 5.5V and use a micropower sleep function to give an average supply current of only 8uA.

AH9250 has push pull output for flexibility.They are small low profile industry standard SC59 and TO92S packages.


  • Omnipolar Operation (Switching with North or South Poles)
  • Micropower Operation
  • Built in Pull-up Resistor on the Output
  • 2.5V to 5.5V Power Supply
  • Stabilized Chopper
  • Superior Temperature Stability
  • Digital Output Signal
  • -40°C to +85°C Operating Temperature
  • ESD (HBM): 5000V
  • Small Low Profile Industry Standard SC59 and TO92S Packages
  • Totally Lead-Free & Fully RoHS Compliant
  • Halogen and Antimony Free. “Green” Device


  • Cover Switch in Notebook PC/PDA
  • Handheld Wireless Application Awake Switch
  • Doors, Lids, Covers and Tray Position Detect Switches
  • Liquid Level Detection
  • Battery Powered Consumer, Home Appliances and Industrial Applications

Product Specifications

Product Parameters

# Outputs 1
ActiveHigh orLow Low
Active Output State (B > Bop) Low
AEC Qualified No
Compliance (Only Automotive supports PPAP) No
Average Supply Current (µA) 8
Average Supply Current (mA) 0.008
Compliance (Only Automotive supports PPAP) Standard
Compliance(Only Automotive supports PPAP) Standard
Inactive Output State (B < Brp) High
Max OperatingPoint ±Bop(Guass) 50
Max Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 50
Max ReleasePoint ±Brp(Guass) 40
Max Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) 40
Min OperatingPoint ±Bop (Guass) 30
Min Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 30
Min ReleasePoint ±Brp(Guass) 20
Min Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) 20
Operating Ambient Temperature (°C) -40 to 85
Operating Ambient Temperature Range (°C) -40 to 85
Operating Voltage (V) 2.5 to 5.5
Operating Voltage (V) 2.5 to 5.5
Output Type Pull-Up Resistor
Outputs Single
AEC Qualified No
Sensitivity High
Typ OperatingPoint ±Bop(Guass) 40
Typ Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 40
Typ ReleasePoint ±Brp(Guass) 30
Typ Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) 30
Type Omnipolar

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Technical Documents

Recommended Soldering Techniques


Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2587 2022-05-13 2022-11-13 Device End of Life (EOL)
PCN-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site
PCN-2408 2019-10-02 2020-01-02 Additional Qualified (AT) Assembly Test Site + BOM + Top Marking


Related Application FAQs