Diodes Incorporated AH9247Z3-G1

Overview

AH9247Z3-G1 from Diodes Incorporated is a high-sensitivity, micropower omnipolar Hall-effect switch in TO92S (TYPE B) package, featuring chopper stabilization, built-in pull-up resistor, and sleep/awake logic. It operates from 2.5V to 5.5V, draws only 4–10 µA in sleep mode, and switches on with either magnetic pole (BOPN: −55 to −15 G, BOPS: 15 to 55 G). Used in notebook cover detection and low-duty-cycle handheld awake switches.

For engineers reviewing the AH9247Z3-G1 datasheet, AH9247Z3-G1 pinout, AH9247Z3-G1 application, or AH9247Z3-G1 equivalent, this page delivers verified magnetic thresholds, package-specific timing (tAW = 120 µs, tSL = 80–120 ms), supply current behavior (IAVG = 8–15 µA), and RoHS/Green compliance status per Diodes DS38119 Rev. 4-2.

Technical Context

The AH9247Z3-G1 implements a chopper-stabilized Hall sensor with digital output and internal biasing, enabling stable magnetic switching across temperature (−40°C to +85°C) without external components. Its sleep/awake control logic cycles between active sensing (1.8–3 mA ICC) and ultra-low-power latched state (4–10 µA ISL), achieving <0.15% duty cycle.

Magnetic response is omnipolar: output turns low when |B| exceeds BOP (±15–55 G depending on polarity and package), and releases at BRP (±5–45 G), delivering 10 G typical hysteresis. Output saturation voltage is ≤0.4 V at 1.0 mA, compatible with standard CMOS/TTL logic interfaces.

Key Specifications

Pinout & Package

TO92S (TYPE B) package: 3-pin through-hole, low-profile, industry-standard footprint optimized for space-constrained consumer enclosures. Pin 1 = VCC, Pin 2 = GND, Pin 3 = OUTPUT (open-drain with internal pull-up).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Hall-effect switch applications.

Compared with AL3320EUA-7 and HAL1505SU, the AH9247Z3-G1 uniquely combines omnipolarity, sub-10 µA sleep current, and TO92S (TYPE B) compatibility-making it the only option qualified for long-life, polarity-agnostic cover sensing in compact consumer devices.

Availability

AH9247Z3-G1 is available at Aetrix Electronics and suitable for notebook cover detection, handheld awake switching, and low-duty-cycle magnet sensing requiring stable component supply, full RoHS 3/Green compliance, and TO92S (TYPE B) through-hole mounting.

Supply support for AH9247Z3-G1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The AH9247 belongs to Diodes' Hall-effect sensor product line, engineered specifically for ultra-low-power, battery-operated consumer electronics where reliability, magnetic sensitivity, and packaging flexibility are critical.

FAQ

What is the magnetic operating point (BOP) range for AH9247Z3-G1 in TO92S (TYPE B) package?

The AH9247Z3-G1 in TO92S (TYPE B) has BOPS (south pole) of 15–55 G and BOPN (north pole) of −55 to −15 G at +25°C and VCC = 3 V. These values shift slightly with temperature and supply voltage but remain within guaranteed limits across −40°C to +85°C per DS38119 Rev. 4-2.

Does AH9247Z3-G1 require an external pull-up resistor?

No. The AH9247Z3-G1 integrates an internal pull-up resistor on the OUTPUT pin, eliminating the need for external components. This simplifies PCB layout and ensures reliable high-state definition during sleep and release modes without additional BOM items or routing overhead.

How does the sleep/awake logic reduce power consumption?

The AH9247Z3-G1 alternates between awake mode (1.8–3 mA, ~120 µs duration) and sleep mode (4–10 µA, ~80–120 ms duration), achieving <0.15% duty cycle. During sleep, the output remains latched and analog circuitry powers down-reducing average current to 8–15 µA, as measured per DS38119 test conditions.

Is AH9247Z3-G1 pin-compatible with other Diodes Hall switches in TO92S package?

No. While AH9247Z3-G1 uses TO92S (TYPE B) pinout (VCC–GND–OUTPUT), other Diodes Hall switches like AH180x series use different pin assignments (e.g., GND–VCC–OUTPUT). Mechanical and electrical compatibility must be verified per datasheet-pin mapping is not standardized across Diodes' TO92S Hall portfolio.