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Home > Products > Sensors, Transducers > Magnetic Sensors > Switches (Solid State)

Diodes Incorporated AH183-PG-B

Name: AH183-PG-B
Brand: Diodes Incorporated
SKU: AH183-PG-B
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AH183-PG-B

Manufacturer:: Diodes Incorporated

Category:: Switches (Solid State)

Package:: 3-SIP

Datasheet:: AH183-PG-B.pdf

Description:: MAGNETIC SWITCH UNIPOLAR 3SIP

Quantity:: RFQ Add To RFQ list

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Inventory:1,151

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Product details

Overview

AH183-PG-B from Diodes Incorporated is a micropower, bipolar-latching Hall-effect switch in SIP-3L package, designed for battery-operated handheld devices. It operates from 2.5V to 5.5V, consumes 280–500 µA average supply current, features 40–60 Gauss operation point (Bop), and delivers open-drain output with 0.1–0.3 V on-state voltage at 1 mA load - used in cover detection and position sensing where ultra-low power and magnetic polarity discrimination are critical.

For engineers reviewing the AH183-PG-B datasheet, AH183-PG-B pinout, AH183-PG-B application, or AH183-PG-B equivalent, key selection criteria include its SIP-3L package footprint, south-pole activation behavior, 100 µs max wake-up time, -40°C to +85°C operating range, and compatibility with 10 kΩ–100 kΩ pull-up networks in low-duty-cycle sensing systems.

Technical Context

The AH183-PG-B integrates a Hall plate, chopper-stabilized amplifier, offset-canceling circuitry, and CMOS output driver in a single die. Its bipolar latching logic requires a south pole to turn on and a north pole (or field removal) to turn off in SIP-3L configuration - distinct from SC59's north-pole-on behavior.

It employs dynamic offset cancellation to suppress thermal drift and mechanical stress effects, achieving <10 Gauss hysteresis (Bhy) and ±0.1% typical switch-point drift over temperature - enabling reliable detection in consumer enclosures subject to thermal cycling and mechanical flex.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.5 V to 5.5 V - supports single-cell Li-ion, alkaline, or NiMH battery rails without regulation
Average Supply Current	280–500 µA - enables >1-year operation on a CR2032 coin cell in 0.25% duty-cycle cover-sense applications
Operation Point (Bop)	40–60 Gauss (south pole) - ensures robust actuation with low-strength magnets in thin bezels
Output Type	Open-drain, logic-level compatible - interfaces directly with MCU GPIO or 3.3 V/5 V pull-up networks
Wake-up Time (tawake)	≤100 µs - supports real-time lid-open detection with sub-millisecond response latency
Operating Temperature	-40°C to +85°C - qualified for indoor consumer electronics and industrial handheld terminals
Hysteresis (Bhy)	≥10 Gauss - prevents chatter near threshold in noisy magnetic environments

Pinout & Package

Package: SIP-3L (Single In-line Package, 3-pin, straight-lead, bulk format). Dimensions: 2.00 mm × 1.15 mm × 0.51 mm (L×W×H), branded top surface, active area centered under marking side.

Pin/Terminal	Circuit Role	Design Meaning
1	Vdd	Power supply input - must be decoupled with 10–100 nF capacitor close to pin for noise immunity
2	GND	Ground reference - shared return path for Hall sensor and output driver; layout critical for EMI rejection
3	Output	Open-drain output - sinks up to 10 mA; requires external pull-up (10–100 kΩ) to define logic-high level

Key Features

Feature	Design Value
Micropower Operation	280–500 µA avg. current enables multi-year battery life in intermittent-sense applications
Offset Canceling Technology	Chopper-stabilized architecture reduces thermal drift to <0.1%/°C, eliminating calibration in production
Superior Temperature Stability	Bop shift ≤±5% over -40°C to +85°C - maintains consistent actuation across environmental extremes
Insensitivity to Physical Stress	Strain-immune die attach and packaging prevent false triggers during PCB flex or housing deformation
Green Packaging	SIP-3L with lead-free finish, halogen- and antimony-free molding compound per RoHS 3 and JEDEC J-STD-020

Applications

Cover Detection

Speed Measurement

Use Scenario: Detecting flip-cover or sliding bezel closure in smartphones and tablets.

IC Role / Device Role / Timing Role: Bipolar latching Hall switch providing state-hold output until magnet polarity reverses or removes.

Use Value: Eliminates continuous polling; leverages 25% duty cycle to extend battery life beyond 2 years on CR2032.

Use Scenario: Measuring rotational speed of small DC motors or fans via gear-tooth sensing.

IC Role / Device Role / Timing Role: Edge-triggered magnetic event detector feeding pulse train to MCU timer capture input.

Use Value: 100 µs wake-up and 200–400 ms period enable resolution down to ~2.5 RPM with no external RC timing components.

Home Safety Sensor

Portable Medical Device Interlock

Use Scenario: Monitoring door/window status in smart home security systems.

IC Role / Device Role / Timing Role: Low-power magnetic presence detector interfacing with Zigbee or BLE SoC wake-up interrupt line.

Use Value: 8.0 µA disable current and 15 µW total operation allow always-on monitoring without compromising system sleep budget.

Use Scenario: Confirming proper assembly of detachable modules in portable diagnostic equipment.

IC Role / Device Role / Timing Role: Tamper-evident interlock switch verifying module seating before enabling high-voltage subsystems.

Use Value: South-pole activation ensures intentional actuation only with correctly oriented internal magnet - preventing false enables due to stray fields.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
AL33201ELTTR	Unipolar, 3.3 V fixed supply, 1.2 µA quiescent current, SOT-23 package	Lacks latching behavior; requires continuous field presence for output hold	Select when ultra-low standby power outweighs need for state retention without magnet
DRV5013AQLPGMQ1	Automotive-grade (AEC-Q100), 2.7–38 V supply, push-pull output, SOIC-8	Higher voltage range and fault reporting; not drop-in due to package and pin count	Choose for automotive interior sensing where extended temp range and diagnostics are mandatory

Compared with AL33201ELTTR and DRV5013AQLPGMQ1, the AH183-PG-B uniquely balances SIP-3L compactness, bipolar latching, and sub-500 µA average current - making it optimal for space-constrained, battery-powered consumer covers where polarity-based state memory is required without MCU intervention.

Availability

AH183-PG-B is available at Aetrix Electronics and suitable for cover detection, speed measurement, home safety sensors, and portable medical device interlocks requiring stable component supply despite its obsolete status.

Supply support for AH183-PG-B 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 semiconductor manufacturer specializing in discrete, analog, and mixed-signal solutions for consumer, industrial, and computing markets.

The AH183 belongs to Diodes' Hall-effect switch product line, engineered specifically for ultra-low-power, magnetically actuated presence detection in battery-powered portable electronics - emphasizing reliability, small footprint, and minimal system-level design overhead.

FAQ

Is AH183-PG-B still in production?

No - AH183-PG-B is officially obsolete and discontinued per Diodes' DS31024 Rev. 10 (August 2022). Aetrix Electronics holds remaining authorized inventory and provides last-time-buy support, including full traceability and documentation. Engineering teams should evaluate migration paths using verified alternatives listed in the Equivalent & Alternatives section.

What is the magnetic polarity requirement for AH183-PG-B activation?

The AH183-PG-B in SIP-3L package activates (output low) when a south pole of sufficient strength (≥40 Gauss) is presented to the branded side. It releases (output high) when the field drops below 10–30 Gauss (Brp) or when a north pole is applied - confirming its bipolar latching behavior as specified in the magnetic characteristics table.

Can AH183-PG-B drive an LED directly?

No - AH183-PG-B has an open-drain output rated for 10 mA sink current and 0.3 V max on-state voltage at 1 mA. Driving even a low-current LED (typically requiring ≥2 V forward voltage and 2–5 mA) would exceed its voltage compliance and violate its logic-level interface specification. An external transistor or dedicated LED driver is required.

Why does AH183 consume more current than AH182?

The AH183 uses a higher sampling frequency (200–400 ms period vs. AH182's 50–100 ms), resulting in greater average current draw (280–500 µA vs. 5–10 µA). This trade-off enables faster response in dynamic applications like speed measurement, while AH182 prioritizes extreme battery longevity in static presence detection.

AH183-PG-B Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 3-SIP

Packaging:: Bulk

Product Status:: Obsolete

Function:: Unipolar Switch

Technology:: Hall Effect

Polarization:: South Pole

Sensing Range:: 6mT Trip, 1mT Release

Test Condition:: 25°C

Voltage - Supply:: 2.5V ~ 5.5V

Current - Supply (Max):: 500µA

Current - Output (Max):: 10mA

Output Type:: Open Drain

Features:: -

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: 3-SIP

AH183-PG-B FAQ

1.How can I place an order for AH183-PG-B through Aetrix?

Please submit a Request for Quotation (RFQ) for AH183-PG-B on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for AH183-PG-B reliable?

The price and inventory of AH183-PG-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AH183-PG-B is usually 5 days.

3.What payment methods are accepted for AH183-PG-B?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AH183-PG-B transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AH183-PG-B?

AH183-PG-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AH183-PG-B order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for AH183-PG-B?

For technical support, including AH183-PG-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AH183-PG-B requirements.

6.How does Aetrix verify that AH183-PG-B is sourced from the original manufacturer or authorized distributors?

All AH183-PG-B products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AH183-PG-B meets industry standards.

7.What is the process for return or replacement of AH183-PG-B?

All AH183-PG-B units undergo pre-shipment inspection (PSI). If there is an issue with AH183-PG-B, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The AH183-PG-B part is unused and in its original packaging.

Return procedure for AH183-PG-B:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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