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The **MHO+35FBG-R** is a specific part number typically associated with **Quartz Crystal Oscillators**, often manufactured by companies like MtronPTI. These components are critical for providing a stable clock signal in electronic circuits.
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### 1. Technical Specifications Overview
The part number follows a specific nomenclature. Below are the typical characteristics associated with this series:
| Parameter | Specification |
| :--- | :--- |
| **Component Type** | XO (Crystal Oscillator) |
| **Package Type** | 14-pin DIP (Full Size) / 4-pin Metal Can |
| **Output Type** | HCMOS / TTL |
| **Voltage Supply** | Usually 5.0V (Standard for MHO series) |
| **Frequency Stability** | ±100ppm, ±50ppm, or ±25ppm (depending on suffix) |
| **Operating Temp** | 0°C to +70°C (Standard) or -40°C to +85°C |
| **RoHS Status** | "R" suffix indicates RoHS Compliant |
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### 2. Part Number Breakdown
While manufacturer codes can vary slightly, the breakdown for the **MHO+35FBG-R** series usually follows this logic:
* **MHO**: Series designation (Metal thru-hole, 5.0V).
* **+**: Often indicates a specific revision or lead-free process.
* **3**: Represents frequency stability (e.g., ±50ppm).
* **5**: Represents the duty cycle (e.g., 40/60%).
* **F**: Operating temperature range (e.g., 0°C to +70°C).
* **B**: Output Type (e.g., HCMOS/TTL Compatible).
* **G**: Tri-state Enable/Disable function.
* **R**: RoHS Compliant.
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### 3. Pin Configuration
For a standard 14-pin DIP package (where only 4 pins are actually present), the pinout is generally:
1. **Pin 1: N/C or Tri-state Enable/Disable.** If "G" is present, pulling this low stops the output.
2. **Pin 7: Case Ground.** Connected to the metal housing for EMI shielding.
3. **Pin 8: Output.** The square wave clock signal.
4. **Pin 14: Vcc (+5.0V).** Power supply input.
---
### 4. Key Applications
This component is used in legacy and industrial systems that require a robust, through-hole timing solution:
* **Microprocessor Clocks:** Providing the base heartbeat for CPUs.
* **Embedded Systems:** Industrial controllers and automation.
* **Telecommunications:** Synchronizing data transmission.
* **Legacy Computing:** Replacement parts for older motherboards and DIY electronics.
---
### 5. Implementation Example
To use this in a circuit, a bypass capacitor (typically **0.01µF to 0.1µF**) should be placed as close as possible between Pin 14 (Vcc) and Pin 7 (GND) to minimize noise.
```cpp
// Logic Representation of Tri-state Pin 1
if (Pin1 == HIGH || Floating) {
Output = Active_Clock_Signal;
} else {
Output = High_Impedance; // Logic is disabled
}
```
- ⤷What is the exact frequency of your specific MHO+35FBG-R unit?
- ⤷ Do you need help identifying a modern surface-mount equivalent for this part?
- ⤷ Are you experiencing stability issues with this oscillator in a current circuit?