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Diodes Incorporated AH183-PL-A
- Part No.:
- AH183-PL-A
- Manufacturer:
- Diodes Incorporated
- Category:
- Switches (Solid State)
- Package:
- 3-SIP, Formed Leads
- Datasheet:
-
AH183-PL-A.pdf
- Description:
- MAGNETIC SWITCH UNIPOLAR 3SIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,433
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Product details
Overview
AH183-PL-A from Diodes Incorporated is a micropower, bipolar 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 operate 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 speed sensing where low quiescent power and magnetic polarity sensitivity are critical.
For engineers reviewing the AH183-PL-A datasheet, AH183-PL-A pinout, AH183-PL-A application, or AH183-PL-A equivalent, this page provides verified technical context, magnetic switching behavior, SIP-3L package layout, real-world use cases in portable electronics, and validated alternative parts with documented functional differences.
Technical Context
The AH183-PL-A integrates a Hall plate, chopper-stabilized amplifier, offset-canceling circuitry, and CMOS output driver in a single die. Its bipolar latching operation responds to south-pole field for turn-on (SIP-3L orientation), with hysteresis of ≥10 Gauss between Bop (40–60 G) and Brp (10–30 G), ensuring noise-immune switching.
It uses internal regulation to maintain stable performance across 2.5–5.5 V supply and −40°C to +85°C ambient. The 200–400 ms period and 25% duty cycle reflect its optimized sleep/awake cycling for ultra-low average power - distinct from the AH182's 50–100 ms period and 0.1% duty cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5 V to 5.5 V - supports single-cell Li-ion and dual-cell alkaline battery systems without external regulation |
| Average Supply Current | 280–500 µA - enables multi-year operation in coin-cell-powered cover detectors |
| Operate Point (Bop) | 40–60 Gauss - reliably triggers with small neodymium magnets at ≥1.5 mm air gap |
| Release Point (Brp) | 10–30 Gauss - ensures clean release without chatter near magnetic threshold |
| Output Type | Open-drain N-channel MOSFET - allows flexible pull-up to any logic rail up to 7 V |
| Awake Time | ≤100 µs - guarantees sub-millisecond response after magnetic field application |
| Operating Temperature | −40°C to +85°C - qualified for consumer and industrial portable equipment environments |
Pinout & Package
SIP-3L (Single In-line Package, 3-pin, spread lead) with branded top surface marking; 2.00 mm × 1.15 mm footprint, 0.51 mm nominal height, RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vdd | Power supply input - must be decoupled with 10–100 nF capacitor near pin for noise immunity |
| 2 | GND | Ground reference - connects to system ground plane; shared return for Hall sensor and output stage |
| 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. supply current enables >5-year battery life in lid-open/close detection |
| Offset Canceling Technology | Chopper-stabilized architecture eliminates thermal drift and process-induced offset errors |
| Superior Temperature Stability | Bop and Brp shift <±10% over −40°C to +85°C - no recalibration needed across operating range |
| Insensitivity to Physical Stress | Monolithic construction avoids piezoresistive effects common in wire-bonded Hall sensors |
| Polarity-Specific Activation | South-pole-only activation (SIP-3L) prevents false triggers from stray north-pole fields |
Applications
| Cover Detection | Speed Sensing |
|---|---|
Use Scenario: Detecting flip-cover closure in smartphones and tablets using embedded magnet and PCB-mounted sensor. IC Role / Device Role / Timing Role: Hall-effect switch providing digital open/closed status via open-drain output with <100 µs latency. Use Value: 280–500 µA average current extends battery runtime beyond 3 years in always-on monitoring mode. | Use Scenario: Measuring rotational speed of small DC motors or fans in portable medical devices. IC Role / Device Role / Timing Role: Magnetic zero-crossing detector generating pulse train synchronized to shaft rotation. Use Value: 40–60 G operate point allows reliable triggering with low-cost ferrite magnets at 2–3 mm spacing. |
| Home Safety Sensors | Handheld Device Positioning |
Use Scenario: Door/window contact sensors in smart home security systems powered by CR2032 batteries. IC Role / Device Role / Timing Role: Low-power magnetic proximity switch enabling wireless reporting only on state change. Use Value: 10–30 G release point ensures stable "open" state even with minor mechanical vibration or temperature shift. | Use Scenario: Detecting stylus docking or accessory attachment in digital pens and portable drawing tablets. IC Role / Device Role / Timing Role: Polarity-discriminating Hall switch confirming correct orientation before enabling charging or data handshake. Use Value: South-pole-only activation prevents mis-triggering from nearby magnetic components or EMI sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Hall-effect switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AL33035QRTT-7 | Unipolar, 3.3 V fixed supply, 1.5 µA typical IDD, SC59 package | Requires unipolar south-pole actuation only; not polarity-latching | Select when lowest possible power (<2 µA) is mandatory and latching behavior is unnecessary |
| DRV5013A2QLPGM | Bipolar latching, 2.5–38 V supply, 3.5 mA IDD, TO-92 package | Higher drive strength (30 mA sink), wider voltage range, but 7× higher current draw | Select when interfacing with industrial PLC inputs or driving LEDs directly without buffer |
Compared with AL33035QRTT-7 and DRV5013A2QLPGM, the AH183-PL-A uniquely balances micropower operation (280–500 µA), bipolar latching, and SIP-3L compactness - making it optimal for space-constrained, battery-critical cover detection rather than ultra-low-power wake-up or high-voltage industrial sensing.
Availability
AH183-PL-A is available at Aetrix Electronics and suitable for cover detection, speed sensing, home safety sensors, and handheld device positioning requiring stable component supply despite its obsolete status - supported via legacy inventory and controlled distribution channels.
Supply support for AH183-PL-A 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 the Americas.
The AH182/AH183 series belongs to Diodes' Hall-effect sensor product line, engineered specifically for ultra-low-power magnetic switching in portable consumer electronics - emphasizing battery longevity, magnetic noise immunity, and compact SIP-3L integration.
FAQ
Is AH183-PL-A still in active production?
No - AH183-PL-A is officially obsolete per Diodes' DS31024 Rev. 10 (August 2022). Aetrix Electronics maintains limited legacy stock for continuity support, but no new production runs are planned. Customers should evaluate alternatives like AL33035QRTT-7 for new designs requiring similar functionality.
What is the magnetic polarity requirement for AH183-PL-A in SIP-3L?
The AH183-PL-A in SIP-3L package activates only under sufficient south-pole magnetic field applied to the branded top surface. North-pole exposure does not trigger output - a key design feature preventing unintended activation in multi-magnet environments.
Can AH183-PL-A drive an LED directly?
No - its output is open-drain with 10 mA absolute maximum sink current and 0.1–0.3 V on-state voltage at 1 mA. Driving even a standard 2 mA LED requires external current-limiting and level-shifting; use a dedicated driver stage or select DRV5013A2QLPGM for direct LED interface capability.
How does AH183-PL-A differ from AH182-PL-A?
The AH183-PL-A draws 280–500 µA average supply current and operates with 200–400 ms period and 25% duty cycle, while AH182-PL-A draws only 5–10 µA with 50–100 ms period and 0.1% duty cycle - making AH182 better for ultra-long-life applications, and AH183 preferable where faster response and higher signal bandwidth are needed.
AH183-PL-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 3-SIP, Formed Leads
- Packaging:
- Tape & Box (TB)
- 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-PL-A FAQ
1.How can I place an order for AH183-PL-A through Aetrix?
Please submit a Request for Quotation (RFQ) for AH183-PL-A 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-PL-A reliable?
The price and inventory of AH183-PL-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AH183-PL-A is usually 5 days.
3.What payment methods are accepted for AH183-PL-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AH183-PL-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AH183-PL-A?
AH183-PL-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AH183-PL-A 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-PL-A?
For technical support, including AH183-PL-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AH183-PL-A requirements.
6.How does Aetrix verify that AH183-PL-A is sourced from the original manufacturer or authorized distributors?
All AH183-PL-A 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-PL-A meets industry standards.
7.What is the process for return or replacement of AH183-PL-A?
All AH183-PL-A units undergo pre-shipment inspection (PSI). If there is an issue with AH183-PL-A, 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-PL-A part is unused and in its original packaging.
Return procedure for AH183-PL-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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