Diode - 1N34A Germanium, low leakage

Diode - 1N34A Germanium, low leakage

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The 1N34A Germanium diode is an old standby in electronics. Widely used for detecting the rectifying efficiency or for switching on a radio, TV or stereo etc.


  • Lower leakage current
  • Flat junction capacitance
  • High mechanical strength


  • AM/FM detectors
  • Ratio detectors
  • FM discriminators
  • TV audio detectors
  • RF input proves
  • TV video detectors

Note: This is a suplus item. Due to the age of the components, the leads will have varying amounts of oxidation which may need to be removed.

Item ID:
Product Measurements by Type
Breakdown Voltage (V(BR))65 V
Forward Voltage Current (IF)4 mA min, 2 mA typical
Forward Voltage Drop (VF)1.0 V
Junction Capacitance (CJ)≤ 1 pF
Junction temperature (Tj)75°C
Operating And Storage Temperature (TJ, TSTG)-55°C to 75°C
Peak Forward Current (IFM)150 mA
Peak Non-repetitive Forward Surge Current (IFSM)0.5 A
Peak Repetitive Forward Surge Current (IFSR)200 mA
Peak Repetitive Inverse Voltage (PIV)65 V
Peak Reverse Voltage (VRM)45 V
Rectification Efficiency (nr)55 %
Rectified Output Current, average (IO)50 mA
Reverse Current (IR)≤ 100 μA
Reverse Leakage @ 10 V (IR)30 μA
Reverse Leakage @ 50 V (IR)500 μA
Reverse Voltage (VR)20 V
Surge Forward Current (Isurge)500 mA
Packaging Information
Packaging Dimensions2.5 in. × 1.1 in. × 1.1 in.
Weight (Packaging)0.001 lbs.

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet523.86 KB

Questions and Answers

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Asked by Anonymous on October 5th, 2016.
Matt H.
October 5th, 2016
Staff Member
Hi, this is a genuine 1N34A and not a Schottky diode. We do not and will not sell fake parts in any form.

Product Reviews

5.00 out of 5 based on 3 reviews
Edward Vignati - April 18th, 2023
5 out of 5

I've dealt with antique electronic supply company many times over the years, excellent products, great prices at second to none customer service. Thank you for all you do

KR Doyle - March 4th, 2022
5 out of 5

Just what I needed

Manuel - May 3rd, 2015
5 out of 5

Wow! Just like my crystal radio of my youth. This diode worked
great in the radio circuit and it sure took me back! Great product and I'm happy I coud find this item on your online store. Thanks!
Manuel in New Mexico