DATA SHEET: DIODES

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From: Paul Harden (pharden@aoc.nrao.edu)
Date: Thu Aug 17 1995 - 11:48:49 EDT


NA5N DATA SHEET: SMALL SIGNAL AND RECTIFIER DIODES

Some common preferred devices typical to QRP rigs and as
available from DigiKey, Mouser Electronics, etc.

---------------------------------------------------------------------
             ***** SMALL SIGNAL DIODES ***** (Pd=50mW)
 DIODE Bv Vr Ir Vf @ If Ir @ Vr Trr CdM Cd(pF) @ Vr=
 TYPE (V) (V) (nA) (V) (mA) (mA) (V) (nS) (pF) .1v 1v 10v
---------------------------------------------------------------------
1N914 GE 75 75 25 1.0 10 25 20 4000 4 2.3 1.8 1.3
1N914A GE 75 75 25 1.0 20 25 20 4000 4 2.3 1.8 1.3
1N914B GE 75 75 25 1.0 100 25 20 4000 4 2.3 1.8 1.3
1N4148 GE 75 75 25 1.0 10 25 20 4 4 2.3 1.8 1.3
1N4448 GE 100 75 25 1.0 100 25 20 4 4 2.3 1.8 1.3
1N4150 GE 50 50 50 .7 10 100 50 4 2.5pF Max.
---------------------------------------------------------------------
1N4148 is low storage-time version of 1N914

CHART 1 (See Note 1) Forward V. vs forward current.
CHART 2 (See Note 1) Capacitance vs. reverse voltage

-----------------------------------------------------------
          ***** RECTIFIER DIODES (Low Power) *****
 DIODE Bv If Ifs Vr(rms) Ir Vf Trr* Cd at Vr=
 TYPE (V) (A) (A) (V) (uA) (V) (uS) 0.1v 10v
-----------------------------------------------------------
1N4001 50 1.0A 30A 35v 30 0.8v 3.5 50pF 20pF
1N4002 100 1.0 30A 70 30 0.8v 3.5 50 20
1N4003 200 1.0 30 140 30 0.8v 3.5 50 20
1N4004 400 1.0 30 280 30 0.8v 3.5 50 20
1N5400 50 3.0A 200A 50v 500 1.2v 3.5 50 20
1N5401 100 3.0 200A 100 500 1.2v 3.5 50 20
1N5402 200 3.0 200 200 500 1.2v 3.5 50 20
1N5404 400 3.0 200 400 500 1.2v 3.5 50pF 20pF
Schottky Rectifiers (very low Vf)
1N5817 20 1.0A 25 14 1000 0.3v 190pF 90pF
1N5818 30 1.0 25 21 1000 0.3v 160 65
1N5819 40 1.0 25 28 1000 0.3v 115 50
-----------------------------------------------------------

CHART 3 (See Note 1) Forward V. vs forward current.
CHART 4 (See Note 1) Capacitance vs. reverse voltage

Bv= Breakdown v. If=Avg. forward current Ifs=Max. surge current
Ir= Max. DC reverse current Vr(rms)=RMS reverse volt.
Vf= Avg. forward voltage drop Cd=junction capacitance @ given Vr
CdM=Maximum junction capacitance
Trr= Reverse recovery time at If=10mA to 1mA
Trr*=Reverse recovery time at Ir/If=1 (for rectifying AC)

REFERENCES:
1. GE Semiconductor Data Book
2. Motorola Rectifier Device Data Book (DL151/D) 1992
3. Motorola TVS/Zener Device Data Book (DL150) 1992

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NOTES to QRP-L subscribers:
1. This raw ascii file are excerpts from a more detailed typeset
   version being prepared for the <QRP/Experimenters Reference Book>
   to be published by the Colorado QRP Club. Non-text portions
   (schematics, charts, graphs, etc.) are neccessarily omitted.
2. The ascii version (i.e., this file) can be reproduced and used by
   QRP clubs/journals with proper credit to Paul Harden, NA5N. TNX.


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