Step Recovery Diodes
SemiGen’s SSR series of Step Recovery Diodes are epitaxial silicon varactors which provide high output power and efficiencies 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 temperature. Uniform capacitance ensures repeatability from device to device. These diodes are available in chip or packaged form.
PK 11
PK 19
PK 20
PK 25
PK 28
PK 31
PK 32
PK 33
PK 35
PK 36
PK 37
PK 38
PK 43
PK 75
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 Efficiencies
Applications:
For use in waveguide, coaxial and stripline applications.
Downloads:
- Junction Capacitance is measured at 1 MHz.
- Series Resistance is measured using an Agilent model 4291A impedance analyzer.
- Thermal Resistance is measured using pulsed conditions while measuring forward voltage drop across the diode mounted in an infinite heat sink.
- All specifications are measured in case style PK37
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Resource
Tech Brief Describes the Best Eutectic Die-attach Method for MMICs in Hybrid Assemblies
