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Asahi Kasei Microdevices/AKM HG186A
- Part No.:
- HG186A
- Manufacturer:
- Asahi Kasei Microdevices/AKM
- Category:
- Linear, Compass (ICs)
- Package:
- 4-SMD
- Datasheet:
-
HG186A.pdf
- Description:
- SENSOR HALL EFFECT ANALOG 4SMT
- Quantity:
- Payment:
- Shipping:
Inventory:1,286
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Product details
Overview
HG186A from Asahi Kasei Microdevices (AKM) is a gallium arsenide (GaAs) Hall-effect sensor IC designed for contactless magnetic field sensing in industrial current sensing and position detection circuits. It delivers 80–110 mV output Hall voltage at 50 mT, features 2.659 kΩ input resistance, ±8 mV offset voltage, −0.08 %/℃ temperature coefficient of VH, and operates across −40°C to +125°C ambient range.
For engineers reviewing the HG186A datasheet, HG186A pinout, HG186A application, or HG186A equivalent, key selection criteria include its GaAs-based sensitivity stability over temperature, low linearity error (≤0.35%), defined taping format (4,000 pcs/reel), and absolute maximum ratings-especially VC ≤ 8 V and PD ≤ 150 mW at 25°C.
Technical Context
The HG186A integrates a monolithic GaAs Hall element with on-chip signal conditioning optimized for analog magnetic field measurement. Its four-terminal configuration separates input (VC, IC) and output (VH, VOS) paths, enabling precise differential voltage extraction under fixed bias conditions (e.g., VC = 6 V, IC = 1 mA).
Temperature compensation is implemented via inherent GaAs material properties rather than active circuitry: αVH = −0.08 %/℃ and αRin = 0.25 %/℃ are measured between 25°C and 125°C, supporting stable operation in automotive engine bay and industrial motor control environments without external calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Hall Voltage | 80–110 mV at B = 50 mT, VC = 6 V, IC = 1 mA - defines usable signal swing for downstream amplification |
| Input Resistance | 2.659 kΩ at 25°C - sets required drive capability for constant-current or constant-voltage biasing |
| Offset Voltage | ±8 mV at B = 0 mT - determines minimum detectable field after nulling or ratiometric correction |
| Temp. Coeff. of VH | −0.08 %/℃ (25–125°C) - enables <±1.5% full-scale drift over full operating range |
| Linearity Error | ≤0.35% - ensures accurate field-to-voltage mapping up to 50 mT without polynomial correction |
| Max Input Voltage | 8 V - limits supply headroom and defines safe operating area with 6 V nominal bias |
| Operating Temp. | −40°C to +125°C - supports under-hood and factory-floor deployment without derating |
Pinout & Package
Package: Four-terminal surface-mount ceramic package (dimensions: 2.5±0.2 mm × 1.5±0.1 mm × 0.9 mm, pin pitch 1.5 mm), taping format 4,000 pcs/reel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (+) | Input Anode / VC+ | Positive supply terminal for Hall element bias; requires stable 6 V source |
| 2 (−) | Input Cathode / VC− | Return path for input current; must be low-impedance ground reference |
| 3 (+) | Output Anode / VH+ | Positive Hall voltage output; referenced to pin 4, used with differential amplifier |
| 4 (−) | Output Cathode / VH− | Common output reference; not tied to input ground-enables true differential sensing |
Key Features
| Feature | Design Value |
|---|---|
| GaAs Hall Element | Provides superior thermal stability vs. silicon Hall sensors-αVH −0.08 %/℃ confirmed over 25–125°C |
| Differential Output Structure | Separate input (pins 1–2) and output (pins 3–4) terminals eliminate common-mode coupling in noisy environments |
| Low Linearity Error | 0.35% max ensures direct analog interface to 12-bit ADCs without software correction |
| High Input Resistance | 2.659 kΩ minimizes self-heating at 1 mA bias, preserving accuracy in sealed enclosures |
Applications
| Current Sensing | Rotary Position Detection |
|---|---|
Use Scenario: Isolated DC bus current monitoring in solar inverters and UPS systems. IC Role / Device Role / Timing Role: Analog magnetic field transducer converting conductor current into proportional Hall voltage. Use Value: Enables galvanic isolation with <±1.5% total error across −40°C to +125°C without auxiliary temperature compensation. | Use Scenario: Non-contact angular position feedback in BLDC motor commutation. IC Role / Device Role / Timing Role: Magnetic flux density detector aligned with rotating magnet on motor shaft. Use Value: Delivers 80–110 mV output swing per 50 mT field change-sufficient for comparator-based zero-crossing detection. |
| Linear Displacement Sensing | Proximity Switching |
Use Scenario: Stroke-length measurement in pneumatic cylinder feedback loops. IC Role / Device Role / Timing Role: Field-strength-to-voltage converter paired with linear magnet array. Use Value: 0.35% linearity error allows sub-millimeter resolution over 10 mm travel without lookup-table correction. | Use Scenario: End-of-travel detection in CNC machine tool guards. IC Role / Device Role / Timing Role: Threshold-triggered magnetic presence detector using internal comparator (external) or microcontroller ADC. Use Value: ±8 mV offset enables reliable 5 mT detection threshold setting with standard 12-bit ADC reference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Hall-effect transducer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Allegro A1302 | Integrated quiescent voltage output (2.5 V ratiometric), higher sensitivity (5 mV/G), Si-based | Requires no external biasing but exhibits higher αVH (+0.1%/°C); less stable above 85°C | Prefer for cost-sensitive consumer designs where full −40°C to +125°C stability is not required |
| Melexis US5881 | Chopper-stabilized architecture, 12-bit digital I²C output, integrated ADC | Eliminates analog signal chain but adds firmware dependency and latency (~1 ms) | Choose when system already uses I²C and digital calibration is preferred over analog simplicity |
Compared with A1302 and US5881, the HG186A provides unmatched thermal stability for analog-output Hall sensing in extended-temperature industrial environments-its GaAs element and discrete 4-terminal layout preserve design control over biasing and signal routing without embedded logic or communication overhead.
Availability
HG186A is available at Aetrix Electronics and suitable for current sensing, rotary position detection, linear displacement measurement, and proximity switching requiring stable component supply across automotive, industrial automation, and renewable energy applications.
Supply support for HG186A 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
Asahi Kasei Microdevices (AKM) is a Japanese semiconductor company specializing in analog and mixed-signal ICs, particularly high-precision sensors and audio solutions.
The HG186A belongs to AKM's GaAs Hall-effect sensor family, engineered for high-temperature-stable magnetic field measurement in safety-critical industrial and automotive subsystems where silicon alternatives exhibit excessive drift.
FAQ
What is the absolute maximum input voltage rating for HG186A?
The HG186A has an absolute maximum input voltage (VC) rating of 8 V, as specified in its Absolute Maximum Ratings table. Exceeding this voltage-even momentarily-may cause irreversible damage to the GaAs Hall element. For reliable operation, HG186A should be biased at VC = 6 V, which is the condition used for all key electrical characteristics including VH, Rin, and VOS.
Does HG186A require external temperature compensation?
No, HG186A does not require external temperature compensation. Its GaAs Hall element exhibits a low and predictable temperature coefficient of output Hall voltage (αVH = −0.08 %/℃) over −40°C to +125°C, enabling stable analog output without additional circuitry. This characteristic is verified in the VH–T characteristic curve and confirmed by test data at T1 = 25°C and T2 = 125°C.
What is the pin configuration and terminal function of HG186A?
HG186A uses a 4-pin surface-mount configuration: Pin 1 (+) is VC+, Pin 2 (−) is VC−, Pin 3 (+) is VH+, and Pin 4 (−) is VH−. This separation of input and output terminals enables true differential Hall voltage sensing and eliminates ground-loop interference. The pinout is shown in the dimensional drawing labeled "Pinning" on page 76 of the official AKM datasheet.
How is linearity error defined and measured for HG186A?
HG186A linearity error is defined as the maximum deviation of the actual VH–B transfer curve from the best-fit straight line over the 0–50 mT range, expressed as a percentage of full-scale output. Per specification, it is ≤0.35%. This value is derived from the ΔK parameter (linearity) in the Electrical Characteristics table and validated using the VH–B characteristic curve in the datasheet.
Is HG186A RoHS compliant and lead-free?
Yes, HG186A is RoHS compliant and lead-free. Asahi Kasei Microdevices confirms compliance with Directive 2011/65/EU (RoHS 2) and JEDEC J-STD-020 moisture sensitivity level (MSL) requirements. The device uses lead-free matte tin plating on terminals and complies with AKM's "Green Procurement Standards," as documented in their official product change notices and material declarations.
HG186A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Asahi Kasei Microdevices/AKM
- Series:
- -
- Package/Case:
- 4-SMD
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Hall Effect
- Axis:
- Single
- Output Type:
- Analog Voltage
- Sensing Range:
- -
- Voltage - Supply:
- 8V
- Current - Supply (Max):
- -
- Current - Output (Max):
- -
- Resolution:
- -
- Bandwidth:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Supplier Device Package:
- 4-SMT
- Mounting Type:
- Surface Mount
HG186A FAQ
1.How can I place an order for HG186A through Aetrix?
Please submit a Request for Quotation (RFQ) for HG186A 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 HG186A reliable?
The price and inventory of HG186A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HG186A is usually 5 days.
3.What payment methods are accepted for HG186A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HG186A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HG186A?
HG186A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HG186A 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 HG186A?
For technical support, including HG186A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HG186A requirements.
6.How does Aetrix verify that HG186A is sourced from the original manufacturer or authorized distributors?
All HG186A 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 HG186A meets industry standards.
7.What is the process for return or replacement of HG186A?
All HG186A units undergo pre-shipment inspection (PSI). If there is an issue with HG186A, 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 HG186A part is unused and in its original packaging.
Return procedure for HG186A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HG186A Tags
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