SKU: 18767566297

ALLEGRO MICROSYSTEMS A1101EUA-T Hall Effect Switch, Unipolar Switch, Switch, 175 G, 10 G, 3.8 V, 24 V, SIP

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Description

ALLEGRO MICROSYSTEMS A1101EUA-T Hall Effect Switch, Unipolar Switch, Switch, 175 G, 10 G, 3.8 V, 24 V, SIPThe A1101EUA T is a continuous time hall effect switch in 3 pin SIP package. It is a next generation replacement for the popular Allegro 312x and 314x lines of unipolar switches. The A1101 uses BiCMOS technology which consists of devices that feature fast power on time and low noise operation. Device programming is performed after packaging to ensure increased switchpoint accuracy by eliminating offsets that can be induced by package stress. Unique

The A1101EUA-T is a continuous time hall effect switch in 3 pin SIP package. It is a next generation replacement for the popular Allegro 312x and 314x lines of unipolar switches. The A1101 uses BiCMOS technology which consists of devices that feature fast power-on time and low noise operation. Device programming is performed after packaging to ensure increased switchpoint accuracy by eliminating offsets that can be induced by package stress. Unique hall element geometries and low offset amplifiers help to minimize noise and to reduce residual offset voltage which is normally caused by device overmoulding, temperature excursions and thermal stress. The device includes voltage regulator, hall voltage generator, small signal amplifier, schmitt trigger and NMOS output transistor.
  • Automotive grade AEC-Q100 qualified
  • Solid state reliability
  • Stable operation over full operating temperature range
  • Reverse battery protection
  • Factory programmed at end of line for optimum performance
  • Robust EMC performance and high ESD rating
  • Regulator stability without bypass capacitor
  • Supply voltage range from 3.8V to 24V
  • Operate point (BOP) of 100G, release point (BRP) of 45G and hysteresis (BHYS) of 55G at TA = 25°C
  • Operating ambient temperature range from -40°C to 85°C

Applications

Sensing & Instrumentation, Automotive, Motor Drive & Control

Product details

Release Point Typ 10G
Sensor Case Style SIP
No. of Pins 3 Pin
Product Range -
Automotive Qualification Standard -
Hall Effect Type Switch
Supply Voltage Min 3.8V
Packaging Each
Supply Voltage Max 24V
Operate Point Typ 175G
MSL -

Other details

Brand ALLEGRO MICROSYSTEMS
Part Number A1101EUA-T
Quantity Each
Technical Data Sheet EN
Product Change Notice EN

All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.

Shipping Notes
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Exchange/Return Notes
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SKU: 18767566297

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ninjitsu
New York, US
★★★★★ 3
Meh
Style: 2.5" Ball
It "works" but it isn't very good. The grip is so loose on the ball, it lets go early and doesn't thrown very far. A Chuckit is so much better, I can get 3x the distance with a 25" Chuckit. This thing is kind of a waste.
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Reviewed in the United States on May 25, 2026
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Chris S
Port Orchard, US
★★★★★ 5
Holding up well to my dogs.
These have a squeaker inside. My dogs LOVE them. So far have held up very well. My dogs are hard on toys. The price is right. Do recommend
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Reviewed in the United States on February 18, 2026
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Chrissy
Cuba, US
★★★★★ 5
Happy puppies, happy mom!
What a great deal! These bounce well, they love that they can also chew and squeak as well!! They love them, so I love them! :-)
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Reviewed in the United States on March 25, 2026
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Vanessa C.
Whiting, US
★★★★★ 4
Great bounce, loud squeak, smaller than expected
Great little ball with a high pitched squeak and a nice bounce. I recommend going with a bigger size than you think you need. They have the sizes in the discription and I thought the medium size would be perfect for my 45 lb dog but it was a little too small for her. Also my dog doesn’t tend to chew heavily, but I can imagine that some dogs might manage to break through the rubber without much effort because the rubber is soft enough to easily squeeze for the squeak.
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Reviewed in the United States on June 10, 2025
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Amazon Customer
Natrona Heights, US
★★★★★ 5
Best Balls for aggressive chewers.
I have a bully and shepherd that tear up toys in 30 seconds. They got these for Xmas and it’s been over a week and they are still around in one piece. Very good quality. They have not been able to kill the squeaker.
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Reviewed in the United States on January 2, 2026

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