If you are trying to repair a device or design a circuit using this component, do not rely on finding the exact VHM 314 datasheet. Instead, look for cross-reference replacements.
Step 1: Identify the Package Look at the physical component.
Step 2: Search for Modern Equivalents Search electronics distributors for "Unipolar Hall Effect Switch."
Step 3: Request from Specialized Suppliers If you absolutely require the original document, try contacting suppliers that specialize in legacy/obsolete components, such as:
In the world of industrial electronics, precision is paramount. Whether you are an embedded systems engineer, a procurement specialist, or a hobbyist working on a motor control project, having immediate access to a component’s datasheet is non-negotiable. One part number that frequently surfaces in technical forums and BOMs (Bill of Materials) is the VHM 314.
If you have been frantically typing “VHM 314 datasheet free” into search engines, you likely need electrical characteristics, pinout configurations, or thermal data—fast. This article serves as your complete resource. We will explore what the VHM 314 is, where to find a legitimate free datasheet, and how to interpret its critical specifications.
The "VHM 314" is almost certainly a legacy Unipolar Hall Effect Sensor Switch. While the original manufacturer's datasheet is currently not freely indexed on the public web due to the component's age, it is functionally equivalent to the widely available Allegro A314x series.
Recommendation: Use the datasheet for the Allegro A3144 or Honeywell SS400 series as a reference for pinout and voltage parameters. These are free, widely available, and electrically compatible.
VHM 314 Datasheet Free Guide
Introduction
The VHM 314 is a popular electronic component, and having access to its datasheet is essential for engineers, technicians, and electronics enthusiasts. In this guide, we will walk you through the process of finding and downloading the VHM 314 datasheet for free.
What is VHM 314?
The VHM 314 is a type of electronic component, likely a voltage regulator or a power management IC. Without a datasheet, it's challenging to determine its exact specifications and applications. However, with the datasheet, you'll have access to crucial information such as:
Where to Find VHM 314 Datasheet Free?
There are several websites and resources where you can find the VHM 314 datasheet for free. Here are some options:
How to Download VHM 314 Datasheet Free?
Once you've found a reliable source for the datasheet, follow these steps:
Tips and Precautions
When searching for and downloading datasheets, keep the following tips in mind:
Conclusion
Finding and downloading the VHM 314 datasheet for free is a relatively straightforward process. By following this guide, you should be able to access the datasheet and use it for your projects or applications. Remember to verify the authenticity and accuracy of the datasheet to ensure reliable information.
The VHM-314 leverages a high-performance Bluetooth 5.0 decoder chip (often the AS19AP) to provide stable, lossless audio transmission. Specification Bluetooth Version 5.0 (Backward compatible with 4.1/4.2) Operating Voltage DC 3.7V – 5V Power Consumption ~20mA (Working), <5mA (Standby) SNR (Signal-to-Noise Ratio) ≥is greater than or equal to THD+N -70dB (Total Harmonic Distortion) Transmission Range Up to 15 meters (Line of Sight) Audio Formats WAV, APE, FLAC, MP3 Dimensions ~30mm x 30mm Key Features
Dual Power Options: It can be powered via a Universal Micro USB/Type-C 5V port or through dedicated 3.7V lithium battery pads (VBAT/GND). vhm 314 datasheet free
Lossless Decoding: Supports high-fidelity formats like FLAC and WAV for pristine sound quality.
Plug-and-Play: Features a standard 3.5mm stereo jack for direct connection to headphones or external amplifiers.
Automatic Reconnect: Once paired, the module automatically reconnects to the last device when powered on.
LED Status Indicator: A built-in LED (typically blue) indicates pairing status and active connection. Pinout and Interface Details
For advanced DIY integration, the board includes several solder pads alongside the standard connectors: Micro USB / Type-C: Primary 5V power input.
VBAT / GND: External 3.7V–4.2V lithium battery input pads.
L / R / G Solder Pads: Alternative stereo output terminals (Left, Right, and Common Ground) for internal wiring to an amplifier board.
Sound Card Pads: On some versions (like V2.0/V3.0), short-circuiting these pads allows the module to function as a USB Sound Card when connected to a PC. VHM-314 Bluetooth Audio Receiver Board Module
Go to product viewer dialog for this item. is a popular, ultra-compact Bluetooth audio receiver module frequently used in DIY speaker projects. It comes in several versions, with newer "Blackboard" models typically featuring Bluetooth 5.0 and Type-C or Micro-USB power inputs. Technical Specifications Specification Bluetooth Version 5.0 (supports 4.1/4.2) Operating Voltage 3.7V to 5V DC Signal-to-Noise Ratio (SNR) THD + Noise ≤0.1% or −70 dB Frequency Response 20Hz – 20kHz Transmission Distance Up to 15m (open space) Audio Decoding MP3, WAV, FLAC, APE (Lossless) Power Consumption ~20mA (active), <5mA (standby) Interface and Features
Dual Power Inputs: Can be powered via a USB interface (Micro-USB or Type-C) or through dedicated solder pads for a 3.7V Lithium battery.
Audio Output: Includes a standard 3.5mm stereo jack for direct headphone use and L/R/G solder pads for connecting to an external amplifier. If you are trying to repair a device
Status Indicator: An onboard blue LED indicates pairing status.
Silent Operation: Known for using subtle tones rather than loud voice prompts for connection status. Wiring Overview
Power: Use the Micro-USB Port for 5V power or the BAT+ and BAT- pads for a lithium battery.
Audio: Connect the 3.5mm jack directly to speakers/headphones or use the L/G/R pads to wire into an audio amplifier module like the TPA3116D2. VHM-314 Bluetooth Audio Receiver Board Module
The board provides multiple ways to connect and power your audio project: VHM-314 Bluetooth Audio Decoder Module - ElectroPeak
Since the direct datasheet is unavailable, the following are the typical specifications for a component matching this nomenclature. Use these values for educational or troubleshooting reference only, not for critical design verification.
| Parameter | Estimated Value | Notes | | :--- | :--- | :--- | | Component Type | Unipolar Hall Effect Switch | Digital Output | | Operating Voltage | 3.8V – 30V DC | Typically 5V or 12V logic compatible. | | Supply Current | ~5mA – 10mA | Typical internal current draw. | | Output Type | Open Collector ( sinking ) | Requires a pull-up resistor to function. | | Magnetic Trip Point (Bop)| 30 – 80 Gauss (approx.) | Sensitivity varies by grade (A, B, C). | | Release Point (Brp) | 10 – 50 Gauss (approx.) | Hysteresis ensures clean switching. | | Temperature Range | -40°C to +85°C (Industrial) | Some VHM series extend to 125°C (Automotive). | | Package | SOT-23 or TO-92 | 3-pin configuration. |
Pinout (Standard 3-Pin Hall Sensor):
The VHM314 is a digital (switching) Hall-effect sensor that outputs a clean logic signal when exposed to a magnetic field above its operate threshold. It’s commonly used in consumer electronics, robotics, and hobby projects where space, cost, and ease of use matter.
Hall sensors can be slow. The VHM 314 datasheet will list the small-signal bandwidth (typically 20kHz to 100kHz). If you are sensing high-frequency currents (e.g., switching power supplies at 500kHz), you need a high-bandwidth variant.