[Lifetime Warranty] 1N34A 1N34 Schottky Diode 50mA 65V DO-35 (DO-204AH) | Pack of 50
Three 1N34A Schottky barrier rectifier diodes with clear glass bodies and copper internal components.
Infographic showing 1N34A Schottky barrier rectifier diode features with technician working on circuit board.
Technical diagram showing the internal structure and circuit symbol of a 1N34A Schottky barrier diode.
Collage showing 1N34A Schottky barrier rectifier diodes used in circuit testing, solar energy systems, and electronics.
Multimeter probes testing a 1N34A Schottky barrier rectifier diode on a circuit board.
Three 1N34A Schottky barrier rectifier diodes with technical specifications displayed on a product information card.
Technician using a multimeter to test electronic components for 1N34A Schottky barrier diodes.
Three 1N34A Schottky barrier rectifier diodes with clear glass bodies and copper internal components.
Infographic showing 1N34A Schottky barrier rectifier diode features with technician working on circuit board.
Technical diagram showing the internal structure and circuit symbol of a 1N34A Schottky barrier diode.
Collage showing 1N34A Schottky barrier rectifier diodes used in circuit testing, solar energy systems, and electronics.
Multimeter probes testing a 1N34A Schottky barrier rectifier diode on a circuit board.
Three 1N34A Schottky barrier rectifier diodes with technical specifications displayed on a product information card.
Technician using a multimeter to test electronic components for 1N34A Schottky barrier diodes.
Lifetime Warranty

[Lifetime Warranty] 1N34A 1N34 Schottky Diode 50mA 65V DO-35 (DO-204AH) | Pack of 50

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1N34A 1N34 Schottky Diode 50mA 65V DO-35 (DO-204AH)

Key Features

  • Diode Type: Schottky Barrier Rectifier
  • Forward Current: 50mA
  • Peak Reverse Voltage: 65V
  • Package Type: DO-35 (DO-204AH) Axial
  • Low forward voltage drop for high efficiency
  • Designed for high-frequency applications

Replaces / Cross-Reference Part Numbers

  • 1N34A
  • 1N34
  • IN34A
  • IN34

Compatibility & Fitment

  • Suitable for TV, FM, and AM radio detection circuits
  • Commonly used in crystal radio sets and DIY electronics
  • Designed for switch-mode power supplies and high-frequency DC-to-DC converters
  • Often used as a modern substitute for Germanium diodes in audio circuits and effects pedals

When to Replace

  • Diode fails an open-circuit test with a multimeter
  • Diode fails a short-circuit test (shows continuity in both directions)
  • Incorrect voltage output or signal clipping in the circuit
  • Component shows visible signs of heat damage or physical cracking

Installation Tips

  • Identify the cathode band (stripe) to ensure correct polarity during installation. The band indicates the negative terminal.
  • Use a low-wattage soldering iron to prevent thermal damage to the component.
  • To dissipate heat, attach a heat sink (e.g., an alligator clip) to the lead between the diode body and the solder joint.
  • Avoid bending leads too close to the glass body to prevent stress fractures.
  • Always verify the diode's orientation against the circuit board markings or schematic before soldering.

FAQ

This diode replaces the 1N34A / 1N34. Common number variations include 1N34A, 1N34, IN34A, and IN34. Match the printed number on your existing diode and confirm the electrical requirements in your circuit before ordering.
This is a Schottky barrier rectifier/blocking diode rated for 50 mA and 65 V. It is supplied in an axial-leaded DO-35 / DO-204AH style package, which is used in small signal, detector, and low-current blocking applications.
Diodes in this part family are used in low-current electronic circuits such as AM/FM radio detection, small signal rectification, and blocking applications where a low forward voltage drop is required. Always verify that your circuit's current, voltage, and polarity requirements match this diode before installation.
Common signs of a failed small-signal diode include no output, weak or distorted signal detection, loss of rectification, or a short/open reading during testing. With a multimeter in diode-test mode, a good diode typically shows conduction in one direction and blocks in the other. If it reads shorted both ways or open both ways, it is defective.
These are interchangeable naming variations for the same part family. Because older electronics documentation can vary, it is best to confirm the marking on the original component and compare the required voltage, current, package style, and intended circuit function.
Before soldering in the replacement, confirm the diode orientation by checking the banded end against the board marking or schematic. Also inspect for the root cause of failure, such as reversed polarity, an overloaded circuit, heat damage, or a shorted downstream component. Use a temperature-controlled soldering iron and avoid overheating the leads or nearby board traces.