Datasheet: Yl105

To help you better:

  1. Check the label again – Common formats are like YL-105 (maybe a sensor, module, or IC). Could it be:

    • YL-105 IR receiver / photoelectric sensor?
    • YL-105 comparator module (often LM393-based)?
    • YL-105 line tracking sensor?

  2. Common YL-series modules (Arduino/electronics):

    • YL-38, YL-69 (soil moisture)
    • YL-44, YL-83 (sound sensor)
    • YL-105 is sometimes used for flame/IR fire sensor modules.

  3. Search suggestions:

    • Look on Aliexpress / eBay listings for "YL-105" – they often include basic schematics.
    • Search: "YL-105" schematic or "YL-105" pinout
    • Use Google Images for module photos to identify it visually.

If you can share:

I can help you find a compatible datasheet (e.g., LM393, IR receiver, etc.) or locate the correct part number.

The "YL105" designation typically refers to Alpha Wire's specific color and packaging code for their FIT-221 series heat shrink tubing in Yellow. Product Overview: Alpha Wire F2211IN YL105

This is a general-purpose, irradiated polyolefin heat shrink tubing designed for electrical insulation and mechanical protection. Technical Specifications Feature Material Irradiated Polyolefin (PO) Shrink Ratio 2:1 (Shrinks to 50% of original diameter) Supplied Diameter 1.000" (25.40mm) Recovered Diameter 0.500" (12.70mm) Min. Shrink Temp Full Recovery Temp Operating Temp to Voltage Rating Key Features

Durability: Offers high tensile strength (1500 psi) and resistance to common fluids and chemicals.

Flame Resistance: Meets UL 224 VW-1 and CSA 198 standards (except for clear versions).

Flexibility: Maintains flexibility after shrinking, making it suitable for wire bundling and strain relief. Ordering Code Breakdown (YL105) According to Alpha Wire's part numbering system: F2211IN: FIT-221 series, 1-inch diameter. YL: Color code for Yellow.

105: Packaging code (Put-Up), typically indicating a specific quantity of 4-foot lengths (e.g., 5 pieces).

For full compliance and detailed physical properties, you can reference the official Alpha Wire Master Catalog or technical data from distributors like DigiKey and Mouser. Alpha Wire F2211IN YL105 - Heat Shrink Tubing - Utmel yl105 datasheet

Based on technical datasheets and product listings, is a specific color and packaging suffix used by Alpha Wire FIT-221 series of heat shrink tubing. It typically indicates a

color ("YL") and a specific length or put-up style (the "105" code). Core Product: Alpha Wire FIT-221 Heat Shrink Tubing FIT-221 series

is a general-purpose, flexible heat shrink tubing made from cross-linked polyolefin. Jameco Electronics Key Specifications: Jameco Electronics Shrink Ratio : 2:1 (it shrinks to half its supplied diameter). Operating Temperature Shrink Temperature : Begins at and achieves full recovery at

: Irradiated polyolefin (PO), which is flame-retardant and fluid-resistant. Shelf Life

: 5 years to 12 years (144 months) depending on the specific variant and storage conditions. Suffix and Ordering Information : Represents the color

: In the Alpha Wire catalog, this often denotes a specific packaging size, such as a package of five 4-foot lengths : Common parts include F2211/2 YL105 (1/2" diameter) and F2211IN YL105 (1" diameter). Applications and Features Versatility

: Used for cable insulation, strain relief, and color-coding in electrical harnesses. Environmental Resistance : Rated for protection against common fluids and chemicals. Safety Standards : Often meets AMS-DTL-23053 standards for tensile strength and dielectric integrity. Jameco Electronics Note on Wireless Modules

: In some DIY electronics contexts, "YL-105" may also refer to a breakout board/adapter NRF24L01+ wireless module

. These adapters allow the 3.3V wireless module to be safely connected to a 5V power source, like an Arduino, and often include a voltage regulator and filtering capacitors to improve signal stability. Instructables wiring the wireless adapter to a microcontroller, or do you need more mechanical dimensions for the heat shrink tubing?

Arduino and NRF24L01 : 6 Steps (with Pictures) - Instructables

is a common socket adapter board specifically designed to interface the

2.4GHz wireless transceiver module with 5V microcontroller systems, such as the Arduino Uno. YL-105 Datasheet Summary To help you better:

The YL-105 acts as a voltage regulator and breakout board, solving the common power stability issues associated with the nRF24L01 module. On-board Regulator : Features an AMS1117-3.3

chip to step down 5V input to the 3.3V required by the transceiver. Voltage Range : Accepts a input and outputs a stable 1.9V to 3.6V DC Capacitance

: Includes integrated bypass capacitors to filter power noise, which is essential for reliable radio transmission. Dimensions : Approximately 26 x 19 x 12mm Compatibility : Specifically designed for the variety of the nRF24L01+ module.

Essay: The Role of the YL-105 in Modern Wireless Prototyping

In the landscape of hobbyist electronics and rapid prototyping, the nRF24L01 transceiver has long been a staple for low-power, short-range wireless communication. However, its popularity is often shadowed by a notorious sensitivity to power supply fluctuations. The YL-105 socket adapter emerged as a pivotal solution to this challenge, bridging the gap between standard 5V microcontrollers and the delicate 3.3V requirements of wireless modules.

The primary utility of the YL-105 lies in its integration of the AMS1117-3.3 linear regulator. While many microcontrollers provide a 3.3V output pin, these outputs often lack the peak current capacity needed during high-speed data transmission, which can draw up to 13.5mA or more in bursts. By allowing a direct 5V connection, the YL-105 ensures that the transceiver has access to a more robust power rail, which the adapter then regulates locally to provide a steady, noise-free 3.3V.

Beyond mere voltage regulation, the YL-105 simplifies the physical architecture of a project. Its 8-pin socket provides a secure mechanical connection for the nRF24L01, while breaking out the SPI (Serial Peripheral Interface) pins into a more accessible format for jumper wires. This reduces the risk of wiring errors and short circuits that are common when using breadboards or loose connections.

Furthermore, the inclusion of bypass capacitors on the YL-105 board addresses the "brown-out" issues that frequently plague nRF24L01 setups. These capacitors act as local energy reservoirs, smoothing out voltage dips during the module's sudden power-hungry transmission cycles. In the absence of such stabilization, communication often fails or becomes inconsistent—a frustration that many developers mitigate by manually soldering capacitors onto the module itself.

In conclusion, the YL-105 is more than a simple adapter; it is an essential stability layer. By providing localized regulation and noise filtration, it allows engineers and students to focus on software and system logic rather than troubleshooting power-related hardware failures. As wireless sensor networks and IoT devices continue to proliferate, modular tools like the YL-105 remain vital for turning complex datasheets into functional, reliable technology. sample code to get your nRF24L01 and YL-105 running with an Arduino?

Arduino and NRF24L01 : 6 Steps (with Pictures) - Instructables

9. Where to Download the “YL105 Datasheet”

Because the YL105 is not an official semiconductor part but a module assembled from standard components, no single PDF exists from a major brand like Texas Instruments or STMicroelectronics. However, you can obtain equivalent technical data from:

For convenience, I recommend downloading the SRD-05VDC-SL-C datasheet and the PC817 datasheet separately, then combining their specifications—that is effectively the YL105’s complete technical documentation. Check the label again – Common formats are

5. Key Features from the YL105 Datasheet

D. No Shielded Traces

The PCB layout (visible in the datasheet’s mechanical drawing) has long, unshielded traces. This makes the module susceptible to EMI from motors or power supplies. The datasheet provides zero guidance on filtering or external capacitors.

C. Low Power Consumption

The datasheet typically lists quiescent current around 5-10 mA (for the LM393 + Hall sensor). This makes it suitable for battery-powered projects if you power down the sensor between reads.

1. The Physics of Operation: Light Extinction vs. Scattering

To understand the YL-105, one must first understand the physics it exploits. Turbidity is the cloudiness or haziness of a fluid caused by large numbers of individual particles that are generally invisible to the naked eye.

The YL-105 operates on the principle of Light Extinction/Transmission.

The sensor consists of a waterproof probe containing two key components:

  1. An LED (Transmitter): Usually emitting light in the infrared or visible spectrum.
  2. A Phototransistor (Receiver): Positioned directly opposite the LED.

In pure, clear water, the light from the LED travels unimpeded across the gap and strikes the phototransistor, resulting in maximum current flow (lowest resistance). As the water becomes turbid (suspended solids increase), the particles in the water absorb and scatter the light beam. Consequently, less light reaches the receiver.

The Transfer Function: The relationship is inversely proportional:

Note: This contrasts with high-end industrial sensors that use the "nephelometric" method (scattering), where the sensor detects light scattered at 90 degrees. The YL-105’s transmission method is cheaper to manufacture but more susceptible to errors if the optical window becomes dirty.

Q1: What is the difference between YL105 and KY-003?

A: They are functionally identical in most cases. The YL105 may have a slightly different PCB layout, but both use a unipolar Hall sensor and LM393 comparator.

8. YL105 vs. Other Relay Modules

How does the YL105 compare to similar modules?

| Feature | YL105 | SRD-05VDC-SL-C (bare relay) | KY-019 | Songle 1-channel | |-------------|-----------|--------------------------------|------------|----------------------| | Opto-isolated | Yes | No | Yes | Yes | | Active LOW/HIGH selectable | Yes (jumper) | No | Fixed HIGH | Fixed LOW | | LED indicators | Power + Status | None | Power + Status | Power + Status | | Screw terminals | Yes (3 pins) | No | Yes (3 pins) | Yes (3 pins) | | Typical price | $2–$4 | $1 | $3–$5 | $2–$4 |

The YL105 is essentially a clone of the common 1-channel opto-isolated module, but the jumper for trigger logic selection makes it more versatile than fixed-logic boards.

The Circuit Logic

Connect the module as follows: