Step recovery diode: Difference between revisions

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A '''step recovery diode (SRD)''' is a semiconductor junction diode having the ability to generate extremely short pulses.
A '''step recovery diode (SRD)''' aka '''snap-off diode''' is a semiconductor junction diode having the ability to generate extremely short pulses.
It is also called a snap-off diode or a charge-storage diode, and has a variety of uses in microwave electronics as pulse generator or  
It is also called a or a charge-storage diode, and has a variety of uses in microwave electronics as pulse generator or parametric amplifier.  
parametric amplifier.  


When diodes switch from forward conduction to reverse cut-off, a reverse current flows briefly as stored charge is removed.  
When diodes switch from forward conduction to reverse cut-off, a reverse current flows briefly as stored charge is removed.  
It is the abruptness with which this reverse current ceases which characterizes the step recovery diode.


See '''https://en.wikipedia.org/wiki/Step_recovery_diode'''
In SRDs, doping levels are gradually reduced towards the PN junction to maximize the abruptness with which the reverse current ceases.


* http://w140.com/ge_transistor_manual_1964-ch17_snap.pdf
==See also==
* http://w140.com/ge_transistor_manual_1964-snap_diode_specs.pdf
* Wikipedia: [[wikipedia:Step recovery diode|Step recovery diode]]
* [[Patent US 3337779A]], ''Snap-off diode containing recombination impurities'' (f 1962 / g 1967)
* [https://www.hpmemoryproject.org/an/pdf/an_913.pdf HP Application Note 913 – Step Recovery Diode Frequency Multiplier Design] (1967)
* [https://www.hpmemoryproject.org/an/pdf/an_918.pdf HP Application Note 918 – Pulse and Waveform Generation with Step Recovery Diodes] (1967)
* [https://www.hpmemoryproject.org/an/pdf/an_920.pdf HP Application Note 920 – Harmonic Generation Using Step Recovery Diodes and SRD Modules] (1968)
* [[Media:GE Transistor Manual 1964 Ch.17 Snap-off Diodes.pdf|GE Transistor Manual 1964, Ch.17 – Snap-off Diodes]]
* [[Media:GE Transistor Manual 1964 Snap-off Diode specs.pdf|GE Transistor Manual 1964 – Snap-off Diode specs]]
* [[Media:Tek xref tunnel diodes.pdf|Tektronix Tunnel Diodes Crossreference]]


==Used in==
==Tek products using SRDs==


* [[1502]]
{| class="wikitable"
* [[3S1]]
|-
* [[3S3]]
! Product
* [[4S1]]
! Diode(s) used
* [[R293]]
! Serial numbers
* [[284]]
|-
* [[3S76]]
| [[1502]] || [[152-0335-01]] ||
* [[S-6]]
|-
* [[S-42]]
| [[1503C]] || A4CR3040 [[152-0503-00]] (5082-8872)    ||
* [[S-52]]
|-
* ...
| [[1S1]]  ||    ||
|-
| [[1S2]]  ||    ||
|-
| [[3S1]]   ||    ||
|-
| [[3S3]]   || [[152-115]]    ||
|-
| [[4S1]]   ||    ||
|-
| [[4S2]]  || [[152-112]]    ||
|-
| [[4S2A]]  || [[152-0252-00]] ||
|-
| [[4S3]]  ||    ||
|-
| [[R293]] ||    ||
|-
| [[284]]   ||    ||
|-
| [[3S76]] || [[152-115]]    ||
|-
| [[S-1]]  ||    ||
|-
| [[S-2]]  || [[152-0335-01]] ||
|-
| [[S-3]]  || [[152-0368-00]] ||
|-
|rowspan="2"| [[S-4]]  || [[152-0335-00]] || <B060000
|-
|                        [[152-0335-01]] ||   B060000+
|-
|rowspan="2"| [[S-6]] || [[152-0335-00]] ||  B010100–B039999
|-
|                        [[152-0335-01]] ||  B040000+
|-
| [[S-42]] ||    ||
|-
| [[S-52]] ||    ||
|-
| [[TG501]] || [[152-0503-00]]    ||
|}


[[Category:Step recovery diodes]]
[[Category:Semiconductor components]]

Latest revision as of 11:52, 28 September 2023

A step recovery diode (SRD) aka snap-off diode is a semiconductor junction diode having the ability to generate extremely short pulses. It is also called a or a charge-storage diode, and has a variety of uses in microwave electronics as pulse generator or parametric amplifier.

When diodes switch from forward conduction to reverse cut-off, a reverse current flows briefly as stored charge is removed.

In SRDs, doping levels are gradually reduced towards the PN junction to maximize the abruptness with which the reverse current ceases.

See also

Tek products using SRDs

Product Diode(s) used Serial numbers
1502 152-0335-01
1503C A4CR3040 152-0503-00 (5082-8872)
1S1
1S2
3S1
3S3 152-115
4S1
4S2 152-112
4S2A 152-0252-00
4S3
R293
284
3S76 152-115
S-1
S-2 152-0335-01
S-3 152-0368-00
S-4 152-0335-00 <B060000
152-0335-01  B060000+
S-6 152-0335-00  B010100–B039999
152-0335-01  B040000+
S-42
S-52
TG501 152-0503-00
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