Step Recovery Diodes

SemiGen’s SSR series of Step Recovery Diodes are epitaxial silicon varactors which provide high output power and ef ciencies in harmonic generator applications. Using custom epitaxial wafers, our process ensures high reproducibility. The silicon dioxide passivation process assures greater stability and low leakage currents over tempera- ture. Uniform capacitance ensures repeatability from device to device. These diodes are available in chip or packaged form.

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PK 11
Semigen package PK-11
PK 19
Semigen package PK-19
PK 20
Semigen package PK-20
PK 25
Semigen package PK-25
PK 28
Semigen package PK-28
PK 31
Semigen package PK-31
PK 32
Semigen package PK-32
PK 33
Semigen package PK-33
PK 35
Semigen package PK-35
PK 36
Semigen package PK-36
PK 37
Semigen package PK-37
PK 38
Semigen package PK-38
PK 43
Semigen package PK-43
PK 75
Semigen package PK-75
PK 105
Semigen package PK-105

Step Recovery Diodes

Part
Number
Junction
Capacitance
Cj 1 @ -6V,
1MHz
(pF)
Maximum
Breakdown
Voltage
Vb @ 10 μA
(V)
Maximum
Carrier
Lifetime
Tl lr 6 mA
lf = 10 mA
(nS)
Maximum
Transition
Time
Tt
(pS)
Maximum
Series
Resistance
Rs2 lf = 25
mA Rs
(Ohms)
Maximum
Thermal
Resistance3
Θ Cj°C/W
SSR700 0.2 - 0.4 15 8 60 1.20 125
SSR701 0.4 - 0.6 15 8 60 1.00 100
SSR702 0.6 - 0.8 15 8 60 0.70 100
SSR703 0.8 - 1.0 15 8 60 0.50 75
SSR704 1.0 - 1.4 15 8 60 0.40 75
SSR705 1.4 - 2.0 15 8 60 0.30 60
SSR706 2.0 - 3.0 15 8 60 0.25 60
SSR710 0.2 - 0.4 20 11 70 1.00 100
SSR711 0.4 - 0.6 20 11 70 0.70 75
SSR712 0.6 - 0.8 20 11 70 0.60 75
SSR713 0.8 - 1.0 20 11 70 0.50 75
SSR714 1.0 - 1.4 20 11 70 0.40 75
SSR715 1.4 - 2.0 20 11 70 0.30 60
SSR716 2.0 - 3.0 20 11 70 0.25 60
SSR720 0.2 - 0.4 30 17 100 0.80 75
SSR722 0.6 - 0.8 30 17 100 0.50 60
SSR723 0.8 - 1.0 30 17 100 0.40 60
SSR724 1.0 - 1.4 30 17 100 0.30 60
SSR725 1.4 - 2.0 30 17 100 0.25 50
SSR726 2.0 - 3.0 30 17 100 0.20 50
SSR730 0.2 - 0.4 40 21 150 0.80 50
SSR731 0.4 - 0.6 40 21 150 0.60 50
SSR732 0.6 - 0.8 40 21 150 0.50 50
SSR733 0.8 - 1.0 40 21 150 0.40 50
SSR734 1.0 - 1.4 40 21 150 0.30 50
SSR735 1.4 - 2.0 40 21 150 0.25 40
SSR736 2.0 - 3.0 40 21 150 0.20 40

Maximum Ratings

Operating
Temperature
Storage
Temperature
Minimum Voltage
Breakdown
-55° C to +150° C -65° C to +200° C 15, 20, 30, and 40 V @ 10 mA

Features:

  • Wide Selection of Tightend Capacitance Ranges
  • Low Transition Times
  • High Effciencies

Applications:

For use in waveguide, coaxial and stripline applications.

 

Downloads:

 

  1. Junction Capacitance is measured at 1 MHz.
  2. Series Resistance is measured using a Hewlett Packard model 4191A impedance analyzer.
  3. Thermal Resistance is measured using pulsed conditions while measuring forward voltage drop across the diode mounted in an in nite heat sink.
  4. All speci cations are measured in case style PK37

 

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