M2TT-5D-R2/BL
AI

The **M2TT-5D-R2/BL** is a specialized electronic component, typically categorized as a high-performance **Electromechanical Relay** or a specific type of **Miniature Power Switch/Relay module** used in industrial automation and signal switching.
Below is a detailed breakdown of its electronic characteristics and specifications.
---
### 1. General Specifications
This part is designed for precision switching in environments requiring high reliability.
| Feature | Specification |
| :--- | :--- |
| **Component Type** | Electromechanical Relay / Miniature Switch |
| **Contact Configuration** | DPDT (Double Pole Double Throw) |
| **Coil Voltage** | 5V DC (Standard for logic level control) |
| **Color Code (/BL)** | Typically indicates "Blue" casing or specific mounting series |
| **Mounting Type** | Through-hole (PCB Mount) or Socketable |
---
### 2. Core Electronic Parts & Functionality
The internal architecture consists of several critical sub-components:
#### A. The Electromagnetic Coil
* **Voltage:** Rated at **5V DC**.
* **Function:** When current flows through this copper coil, it generates a magnetic field that moves the internal armature.
* **Power Consumption:** Designed for low power draw, making it compatible with microcontroller outputs (like Arduino or PLC logic) when paired with a transistor.
#### B. Contact Mechanism (The Switch)
* **DPDT Logic:** It controls two separate circuits simultaneously. Each circuit can be toggled between two different output paths.
* **Material:** Often made of silver alloy or gold-clad contacts to minimize electrical resistance and prevent oxidation.
#### C. The Housing (R2/BL Designation)
* **Material:** High-temperature resistant plastic.
* **Sealing:** Usually "Wash Tight" or "Sealed," allowing the part to undergo wave soldering and cleaning processes without damaging the internal mechanics.
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### 3. Application Use Cases
This component is frequently found in the following electronic systems:
1. **Telecommunications:** For switching signal paths without introducing significant noise.
2. **Medical Equipment:** Used in diagnostic tools where isolation between the control circuit and the patient-facing circuit is mandatory.
3. **Industrial Controls:** Reversing the polarity of small DC motors or switching between two different sensor inputs.
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### 4. Schematic Representation
In a circuit diagram, the M2TT-5D-R2/BL would be represented as follows:
```text
[ Coil ] [ Switch Set 1 ] [ Switch Set 2 ]
(+) --( )-- (-) COM1 --- NC1 COM2 --- NC2
| \ \
(Magnetic) NO1 NO2
```
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- ⤷
What is the maximum current rating for the contacts on this relay?
- ⤷ Can this relay be driven directly by a 5V microcontroller pin without a transistor?
- ⤷ What are the physical dimensions and pin spacing for PCB layout?