Overview
The 1N34A is a point contact Germanium diode manufactured by NTE Electronics, Inc. It is housed in a DO7 type package and is renowned for its excellent linearity and efficiency in various electronic applications. The diode utilizes N-type Germanium, which offers minimal forward voltage drop and superior electron mobility, making it highly suitable for tasks such as TV image detection, FM detection, and radio AM detection.
The 1N34A diode is particularly valued for its robust linearity and heightened efficiency in handling high-frequency signals with minimal distortion. Its ability to demodulate signals precisely and maintain signal integrity makes it a crucial component in both vintage and contemporary electronic configurations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Inverse Voltage (PIV) | 65 | V |
| Reverse Voltage (VR) | 20 | V |
| Peak Forward Surge Current (IFSM) | 0.5 | A |
| Forward Voltage Drop (VF) | 1 | V |
| Forward Current (IF) | 4 | mA |
| Reverse Current (IR) | 500 | μA @ 50V |
| Junction Capacitance (Cj) | 1 | pF @ -1V, 1MHz |
| Rectification Efficiency (η) | 55 | % |
| Operating Temperature Range | -55°C to 75°C | |
| Package Type | DO7 (Axial) | |
| Mounting Type | Through Hole |
Key Features
- Low Forward Voltage Drop: The 1N34A diode has a minimal forward voltage drop of around 1V, which is beneficial for applications requiring high sensitivity and low power consumption.
- Flat Junction Capacitance: It features a flat junction capacitance of 1 pF, ensuring stable performance at high frequencies.
- High Mechanical Strength: The diode offers high mechanical strength, providing durability and reliability in various applications.
- Low Leakage Current: The diode has a low reverse leakage current, which helps in minimizing power loss in circuits.
- High Rectification Efficiency: It boasts a rectification efficiency of 55%, making it efficient in signal detection and demodulation tasks.
Applications
- AM/FM Detectors: The 1N34A is widely used in AM and FM detectors due to its ability to demodulate signals precisely and maintain signal integrity.
- Ratio Detectors and FM Discriminators: It is effective in ratio detectors and FM discriminators, handling swift amplitude changes while preserving signal integrity.
- TV Audio and Video Detectors: The diode is used in TV audio and video detectors, contributing to excellent audio and visual outputs by converting frequency variations into recognizable signals.
- RF Input Probes: It is also utilized in RF input probes due to its high radiofrequency responsiveness and minimal leakage current.
Q & A
- What is the peak inverse voltage (PIV) of the 1N34A diode?
The peak inverse voltage (PIV) of the 1N34A diode is 65V.
- What is the forward voltage drop (VF) of the 1N34A diode?
The forward voltage drop (VF) of the 1N34A diode is 1V at 5mA.
- What is the junction capacitance of the 1N34A diode?
The junction capacitance of the 1N34A diode is 1 pF at -1V and 1MHz.
- What are the typical applications of the 1N34A diode?
The 1N34A diode is typically used in AM/FM detectors, ratio detectors, FM discriminators, TV audio and video detectors, and RF input probes.
- What is the operating temperature range of the 1N34A diode?
The operating temperature range of the 1N34A diode is -55°C to 75°C.
- Why is the 1N34A diode preferred in high-frequency applications?
The 1N34A diode is preferred in high-frequency applications due to its low forward voltage drop, flat junction capacitance, and high mechanical strength, which ensure stable performance and minimal signal distortion.
- Can the 1N34A diode be replaced by other diodes in all applications?
No, the 1N34A diode has specific characteristics that make it unique for certain applications. While it can be replaced by Schottky diodes like the 1N5711 in some cases, it may not perform equally well in all scenarios, especially those requiring precise signal demodulation and low junction capacitance.
- What is the rectification efficiency of the 1N34A diode?
The rectification efficiency of the 1N34A diode is 55%.
- Is the 1N34A diode RoHS compliant?
No, the 1N34A diode is not RoHS compliant.
- Where can you purchase the 1N34A diode?
The 1N34A diode can be purchased from various suppliers, including NTE Electronics, Digi-Key, Amazon, and other electronic component retailers.
