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Diodes Incorporated AH3327Q-W-7
- Part No.:
- AH3327Q-W-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Switches (Solid State)
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AH3327Q-W-7.pdf
- Description:
- HALL UNIPOLAR SWITCH SC59 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:4,262
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Product details
Overview
AH3327Q-W-7 from Diodes Incorporated is an AEC-Q100 Grade 0 qualified automotive Hall-effect unipolar switch IC in SC59 package, designed for position sensing in high-voltage environments (3.0V–28V supply), with BOP = 95–140 G and BRP = 70–120 G, operating across –40°C to +150°C ambient, and featuring open-drain output with 60 mA current limit-used in gear position detection and door/trunk closure systems.
For engineers reviewing the AH3327Q-W-7 datasheet, AH3327Q-W-7 pinout, AH3327Q-W-7 application, or AH3327Q-W-7 equivalent, key selection criteria include magnetic sensitivity thresholds, SC59 package polarity orientation (South pole to non-marking side), load dump tolerance (40 V), chopper-stabilized temperature stability, and AEC-Q100 qualification for under-hood automotive use.
Technical Context
The AH3327Q-W-7 implements a chopper-stabilized architecture with dynamic offset cancellation and internal bandgap regulation, enabling stable switching over –40°C to +150°C without external compensation. Its magnetic response is defined by fixed operate (BOP) and release (BRP) points with 18–36 G hysteresis, ensuring noise-immune latching behavior in harsh EMI environments.
It integrates reverse-blocking diode, zener clamps on VDD and OUTPUT pins, and output overcurrent limiting (30–55 mA), supporting direct connection to 12 V/24 V automotive buses. The single open-drain output requires external pull-up and is rated for 32 V off-state voltage and 0.4 V on-state saturation at 20 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| BOP | 95–140 G: Magnetic operate point threshold triggering output low; defines minimum field strength needed to activate switch. |
| BRP | 70–120 G: Magnetic release point where output returns high; ensures clean hysteresis-based debouncing. |
| VDD Range | 3.0–28 V: Supports full automotive battery range including cold-crank (≥6 V) and load dump transients (with 40 V absolute max). |
| Output Type | Open-drain: Enables wired-OR logic, level-shifting, and compatibility with diverse MCU input voltages. |
| IOCL | 30–55 mA: Internal output current limit protects against short-circuit faults without external fuse. |
| tD | 4 µs typical: Response delay from magnetic threshold crossing to output transition-critical for real-time position feedback. |
| ESD HBM | 8 kV: Robust handling of human-body electrostatic discharge during assembly and service. |
| TJ Max | +170°C: Junction temperature rating enables reliable operation in engine bay or transmission-mounted locations. |
Pinout & Package
Package: SC59 - surface-mount, 3-pin, lead-free, RoHS-compliant plastic package with gull-wing leads; thermal resistance optimized for automotive ambient up to +150°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | Positive supply input; accepts 3.0–28 V DC with integrated reverse-blocking diode and 28 V zener clamp. |
| 2 | GND | Ground reference for internal regulator and output stage; must be low-impedance path to minimize noise coupling. |
| 3 | OUTPUT | Open-drain N-channel output; sinks up to 60 mA; requires external pull-up resistor (RL) for logic-high state. |
Key Features
| Feature | Design Value |
|---|---|
| Chopper stabilization | Reduces thermal drift of BOP/BRP to ±0.5 G/°C, enabling stable switching across full –40°C to +150°C range. |
| Load dump protection | Withstands 40 V transient on VDD for ≤100 ms per AEC-Q100 stress test, eliminating need for external TVS in many designs. |
| Polarity configuration | SC59 package requires South pole applied to non-marking side-ensures correct activation in space-constrained mounting. |
| Zener clamps | 28 V clamp on VDD and OUTPUT pins prevents latch-up or damage during voltage surges or inductive kickback. |
| AEC-Q100 Grade 0 | Qualified for ambient temperatures up to +150°C and PPAP-capable manufacturing in IATF 16949-certified facilities. |
Applications
| Seatbelt Buckle Detection | Transmission Gear Position Sensing |
|---|---|
Use Scenario: Detect buckle insertion/removal in automotive seatbelt assemblies using proximity of ferrous striker to Hall sensor. IC Role / Device Role / Timing Role: Unipolar switch providing digital ON/OFF signal indicating buckle status; no timing-critical latency required. Use Value: High hysteresis (18–36 G) prevents chatter from mechanical vibration; operates reliably at 125°C near cabin heating ducts. | Use Scenario: Monitor physical gear selector position in automatic transmissions via magnet-actuated lever movement. IC Role / Device Role / Timing Role: Position-sensing switch converting mechanical gear state into logic-level output for TCU input. Use Value: 4 µs response time enables accurate capture of rapid gear shifts; 28 V output clamp protects against solenoid back-EMF. |
| Door/Trunk Closure Monitoring | Steering Column Lock Activation |
Use Scenario: Confirm door or trunk lid fully closed using magnet embedded in latch and Hall sensor mounted on pillar. IC Role / Device Role / Timing Role: Proximity switch signaling closure state to body control module (BCM); operates in standby mode with low IDD. Use Value: 3–5 mA supply current at +25°C and ≤5 mA up to +150°C minimizes parasitic drain on 12 V battery. | Use Scenario: Enable/disable steering column immobilizer lock based on ignition key presence detected via rotating magnet. IC Role / Device Role / Timing Role: Safety-critical unipolar switch feeding immobilizer controller; must meet ASIL-B functional safety requirements. Use Value: AEC-Q100 Grade 0 qualification and 8 kV HBM ESD rating ensure robustness against EMI and handling stress in security-critical systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Hall-effect unipolar switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AL3327Q-W-7 | Same BOP/BRP specs and SC59 package, but uses different die revision with identical electrical performance and qualification. | No functional difference; AL3327Q-W-7 is Diodes' alternate part number for same device with updated internal marking code. | Select when cross-referencing Diodes' internal change notifications or legacy BOMs referencing AL-prefix. |
| TLE4913-2SA | Higher BOP (120–180 G), wider VDD range (4.5–30 V), but only AEC-Q100 Grade 1 (–40°C to +125°C) and no 40 V load dump rating. | Suitable for less thermally demanding locations (e.g., cabin modules), but not for under-hood gear actuators requiring Grade 0. | Choose only if ambient temperature stays below +125°C and system-level surge protection is already implemented externally. |
Compared with AH3327Q-W-7, AL3327Q-W-7 offers identical performance and qualification with minor internal revision, while TLE4913-2SA trades Grade 0 thermal capability and load dump immunity for slightly higher sensitivity and broader supply range-making AH3327Q-W-7 the preferred choice for high-temperature, high-reliability automotive position sensing.
Availability
AH3327Q-W-7 is available at Aetrix Electronics and suitable for gear position sensing, door/trunk closure monitoring, and steering column lock activation requiring stable component supply across extended temperature and voltage ranges.
Supply support for AH3327Q-W-7 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, specializing in high-reliability components for automotive, industrial, and power management applications.
The AH332XQ series belongs to Diodes' automotive Hall-effect sensor product line, engineered specifically for robust, contactless position and proximity detection in AEC-Q100-compliant vehicle subsystems.
FAQ
What is the correct magnet polarity orientation for AH3327Q-W-7 in SC59 package?
The AH3327Q-W-7 in SC59 package requires the South pole to be applied to the non-part marking side of the package to activate the output. This is opposite to SOT23 (Type S) and SIP-3 variants, where the South pole must face the marking side. Incorrect orientation results in no switching action.
Does AH3327Q-W-7 require an external capacitor on VDD?
Yes-a 10 nF to 100 nF ceramic decoupling capacitor (CIN) is recommended between VDD and GND to stabilize the internal regulator and improve RF noise immunity. Placement within 5 mm of the VDD pin is critical for optimal chopper stabilization performance.
Can AH3327Q-W-7 drive an LED directly?
No-the AH3327Q-W-7 has an open-drain output rated for 60 mA continuous sink current, but its 0.4 V saturation voltage at 20 mA means it cannot source current. To drive an LED, connect the LED anode to VDD and cathode to OUTPUT, with appropriate current-limiting resistor calculated for forward voltage drop and desired brightness.
Is AH3327Q-W-7 compatible with 24 V commercial vehicle systems?
Yes-it operates across 3.0 V to 28 V and withstands 40 V load dump transients for ≤100 ms, meeting ISO 7637-2 Pulse 5a requirements for 24 V truck and bus applications. Its –40°C to +150°C operating range supports under-hood deployment in heavy-duty vehicles.
AH3327Q-W-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Unipolar Switch
- Technology:
- Hall Effect
- Polarization:
- South Pole
- Sensing Range:
- 14mT Trip, 7mT Release
- Test Condition:
- 25°C
- Voltage - Supply:
- 3V ~ 28V
- Current - Supply (Max):
- 4mA
- Current - Output (Max):
- 60mA
- Output Type:
- Open Drain
- Features:
- Temperature Compensated
- Operating Temperature:
- -40°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-59-3
AH3327Q-W-7 FAQ
1.How can I place an order for AH3327Q-W-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AH3327Q-W-7 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 AH3327Q-W-7 reliable?
The price and inventory of AH3327Q-W-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AH3327Q-W-7 is usually 5 days.
3.What payment methods are accepted for AH3327Q-W-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AH3327Q-W-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AH3327Q-W-7?
AH3327Q-W-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AH3327Q-W-7 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 AH3327Q-W-7?
For technical support, including AH3327Q-W-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AH3327Q-W-7 requirements.
6.How does Aetrix verify that AH3327Q-W-7 is sourced from the original manufacturer or authorized distributors?
All AH3327Q-W-7 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 AH3327Q-W-7 meets industry standards.
7.What is the process for return or replacement of AH3327Q-W-7?
All AH3327Q-W-7 units undergo pre-shipment inspection (PSI). If there is an issue with AH3327Q-W-7, 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 AH3327Q-W-7 part is unused and in its original packaging.
Return procedure for AH3327Q-W-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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