AH49E
Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.
What the AH49E does
The AH49E is a linear Hall-effect integrated circuit that converts magnetic field strength into a proportional output voltage. It operates across a temperature range of -40°C to 85°C and draws 3.5 mA at 5 V supply. The device features low noise output, eliminating the need for external filtering, and responds to both positive and negative Gauss. Available in TO-92S and SOT-23-3 packages, the AH49E supports commercial, consumer, and industrial applications. Typical uses include current sensing, motor control, position sensing, magnetic code reading, and vibration detection. Its stable and accurate output makes it suitable for ferrous metal detection and liquid level sensing.
Datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 3.5 mA | 4.5 mA | Electrical Characteristics | BCD Semiconductor datasheet, p. 5 — Electrical Characteristics |
| output voltage | 2.25 V | 2.5 V | 2.75 V | @ B = 0GS; Electrical Characteristics | BCD Semiconductor datasheet, p. 5 — Electrical Characteristics |
| output current (abs max) | — | — | 10 mA | Absolute Maximum Ratings (Note 1) | BCD Semiconductor datasheet, p. 4 — Absolute Maximum Ratings (Note 1) |
| supply voltage range | 3 V | — | 6.5 V | Recommended Operating Conditions | BCD Semiconductor datasheet, p. 4 — Recommended Operating Conditions |
| operating temperature | -40 °C | — | 85 °C | Recommended Operating Conditions | BCD Semiconductor datasheet, p. 4 — Recommended Operating Conditions |
Closest matches to AH49E
Frequently asked questions
What is the maximum operating temperature under Recommended Operating Conditions?
The operating temperature is 85 °C.
What is the absolute maximum output current for the AH49E?
The absolute maximum output current is 10 mA (Note 1).
What is the output voltage at B = 0GS?
The output voltage is 2.5 V.
What is the quiescent current of the AH49E?
The quiescent current is 3.5 mA under Electrical Characteristics conditions.
What is the supply voltage range under Recommended Operating Conditions?
The supply voltage range is 6.5 V.