Diode

GPP20M Diode – 1000V, 2A, Rectifier, DO-204AC ( PDF )

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Part Number: GPP20M

Function: 1000V, 2A, Glass Passivated Junction Rectifier

Package: DO-204AC Type

Manufacturer: Vishay Semiconductors

Image and Pinouts:

GPP20M datasheet

Description

GPP20M is a general-purpose glass-passivated junction rectifier diode rated for 1000V reverse voltage and 2A average forward current. It is packaged in a DO-15 (DO-204AC) through-hole package and is designed for reliable rectification in power supplies and general electronic circuits, offering low leakage, good surge capability, and stable high-voltage performance.

Features

  • Glass passivated junction for enhanced reliability
  • Low forward voltage drop
  • Low leakage current (typically < 0.1 µA)
  • High surge current capability
  • DO-15 (DO-204AC) axial package
  • Complies with MIL-S-19500 environmental standards
  • High-temperature soldering capability (275°C, 10s)

Functional Description

  • Standard PN junction rectifier diode for converting AC to DC
  • Conducts current in forward direction and blocks in reverse direction
  • Glass passivation improves junction stability and reduces leakage

Design Notes

  • Ensure adequate thermal dissipation for continuous 2A operation
  • Use proper PCB spacing for high-voltage (1000V) applications
  • Consider reverse recovery characteristics if used in high-frequency circuits
  • Add snubber or RC damping in inductive load applications to reduce stress
  • Check surge current rating for inrush-heavy applications (e.g., capacitive loads)

How to Choose This Part

  • Select based on reverse voltage margin (≥1.5× system voltage recommended)
  • Ensure forward current rating meets load requirements
  • Consider switching speed for high-frequency applications (may require fast diode)
  • Choose package based on thermal and mechanical constraints

Typical Applications

  • AC to DC rectification (power supplies)
  • Freewheeling diode in inductive circuits
  • General-purpose rectifier in consumer and industrial electronics
  • Bridge rectifier configurations

Alternative / Equivalent Products

  • 1N5408 (3A, 1000V rectifier)
  • FR207 (fast recovery alternative)
  • UF4007 (ultrafast switching, lower current)
  • HER208 (high-efficiency rectifier)

Other data sheets are available within the file: GPP20A, GPP20B, GPP20D, GPP20G, GPP20J

GPP20M Datasheet PDF Download


GPP20M pdf

1N5385B Datasheet – 170V, 5W, Zener Diode

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What is 1N5385B?

It is a high power Zener diode designed for voltage regulation and transient suppression in applications requiring high power dissipation.

Part Number: 1N5385B ( 1N5333B thru 1N5388B )

Function: Silicon 5 Watt, 170V, Zener Diode

Package: TO-15 or DO-201AE

Manufacturer: Microsemi Corporation, Won-Top Electronics

Image:
1N5385B datasheet

Description

The 1N5385B is 170V, 5W, Zener Diode.

The 1N5333B through 1N5388B JEDEC registered series of axial-leaded 5.0 watt Zeners provides a selection from 3.3 to 200 volts with different tolerances as identified by specific suffix letter on the part number.

These plastic encapsulated Zeners have a moisture classification of “Level 1” with no dry pack required. They may be operated at high maximum dc currents with adequate heat sinking due to their comparatively low thermal resistance design. Microsemi also offers numerous other Zener products to meet higher and lower power applications.

Ordering Information

1N5385B Zener Diode

Features

1. Zener Voltage : 170 V

2. High Surge Current Capability

3. 5.0W Power Dissipation

4. For Use in Voltage Regulator or Reference

Application

1. Regulates voltage over broad operating current and temperature ranges.

2. Wide selection from 3.3 to 200 V.

3. Flexible axial-lead mounting terminals.

4. Non-sensitive to ESD per MIL-STD-750 method 1020.

5. Withstands high surge stresses.

6. Minimal changes of voltage versus current.

7. High specified maximum current (IZM) with adequate heat sinking.

Other data sheets are available within the file: 1N5333B, 1N5334B, 1N5335B, 1N5336B, 1N5337B

 

1N5385B Datasheet PDF Download


1N5385B pdf