RoHs Compliant Silicon Step Recovery Diodes Features Absolute Maximum Ratings @ TA=+25 °C • Low Transition Times • Tight Capacitance Ranges • High Voltage and Low Thermal Resistance for Higher Input Power • Lead-Free (RoHs Compliant) Description and Applications The MA44600 series of Step Recovery diodes is designed for use in low and moderate power multipliers with output frequencies of up to 20 GHz. These Step Recovery diodes generate harmonics by storing a charge as the diode is driven to forward conductance by the positive voltage of the input signal. When the signal reverses polarity, this charge is extracted. The Step Recovery diode will appear as a low impedance current source until all the charge is extracted, then it will “snap” to a higher impedance. This causes a voltage pulse to form in the impulse circuit of the multiplier. Step Recovery diodes make excellent high order multipliers such as comb generators. They are also useful as efficient moderate power X2- X4 multipliers. • • • MA43000, MA44600 Series V4 (Unless Otherwise Noted) 1 Parameter Absolute Maximum Operating Range -65°C to +175°C Storage Range -65°C to +200°C 1. Operation of this device above any one of these parameters may cause permanent damage. Typical Case Styles ODS-30 ODS-134 DIE ODS-91 ODS-103 ODS-93 Maximum and Suggested Values of Snaptime (Ts) vs. Multiplier Output Frequency High Order Narrow Band Moderate Power Multipliers (MA44600 series) Comb Generators (MA43592, MA43543) High Power Circuit Tested Multiplier (MA43000 Series) Environmental Performance The MA44600 and MA43000 series of diodes in ceramic packages are capable of meeting the tests dictated by the methods and procedures of the latest revisions of MIL-S9500, MIL-STD-202 and MIL-STD-750 which specify mechanical, electrical, thermal and other environmental tests common to military semiconductor products. Suggested Junction Capacitance vs. Multiplier Output Frequency Environmental Ratings PER MIL-STD-750 Storage Temperature Temperature Cycle Shock Vibration Constant Acceleration Humidity Method 1031 1051 2016 2056 2006 1021 Level See maximum ratings 10 cycles, -65°C to +175°C 500 g’s 15 g’s 20,000 g’s 10 days Specifications Subject to Change Without Notice. 1 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. RoHs Compliant Silicon Step Recovery Diodes MA43000, MA44600 Series V4 Electrical Specifications @ TA = +25 °C Snap Varactors Minimum Reverse Voltage2 (VR) Junction Capacitance(Cj)3 Min./Max. Minimum Lifetime (TL) Transition Time (Ts)4 Part Number 1 (V) Vr=6V If=10mA/ Ir=6mA (pF) (nS) (pS) (pS) Nominal Max MA44621A 20 0.200-0.300 7 50 100 MA44631A 30 0.300-0.500 8 70 100 MA44631C 30 0.700-0.900 8 70 100 MA44641A 40 0.400-0.600 12 90 150 Lifetime (TL) Min./Max. Maximum Snap Time (Ts)4 Maximum Thermal Resistance (θjc) High Power Circuit Tested Step Recovery Diodes Part Number 1 Minimum Reverse Voltage2 (VR) Min./Max Junction Capacitance (Cj)3 Min./Max. Vr=6V If=10mA/ Ir=6mA (V) (pF) (nS) (pS) (°C/W) MA43000 85-105 3.00-4.50 250-500 100 12 MA43002 45-70 1.60-2.40 75-225 100 25 MA43004 30-45 0.45-0.85 20-50 100 45 Case Style Minimum Output Power Input Frequency Output Frequency (Watts) (GHz) (GHz) (Watts) Part Number 1 Maximum Input Power MA43000 103 4.0 0.333 2.000 15 MA43002 91 1.5 2.000 6.000 5 MA43004 91 0.3 3.300 13.000 2 Notes: 1. When ordering, specify the desired case style by adding the case designation as a suffix to the model number. Case styles for the MA44600 series are -30,-91 and –93. To order chip form, add the suffix “-134” to the model number. The nominal chip size for the MA44600 series is 15 mils. 2. Reverse voltage (VR) is measured at a reverse bias current of 10µA. 3. Junction capacitance is measured at a reverse voltage of 6V and a frequency of 1MHz. 4. Transition time is measured between 20% and 80% points on the voltage recovery trace. Test conditions are +10mA and –10 volts. Specifications Subject to Change Without Notice. 2 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. RoHs Compliant Silicon Step Recovery Diodes MA43000, MA44600 Series V4 Electrical Specifications @ TA = +25 °C High Order Step Recovery Diode Varactors for Use in Comb Generation Part Number 1 Junction Minimum Reverse Capacitance Lifetime 3 Voltage (Cj)4 (TL) (VR) Min./Max. Min./Max. Min./Max Maximum Snap Time (Ts)5 Maximum Thermal Maximum Output Resistance Input 2 Frequency Power2 (θjc) Case Style1 Vr=6V If=10mA/ Ir=6mA (V) (pF) (pS) (pS) (°C/W) (GHz) (Watts) MA43592 25-40 0.20-0.30 9-27 90 70 1.00-12.00 1.0 30 MA43543 20-50 0.20-0.55 10-25 60 125 2.00-20.00 1.5 93 Notes: 1. The standard case styles are indicated for eac model number. For other available case styles. consult factory 2. This is an operable output frequency range and does not imply instantaneous bandwidth. 3. Reverse voltage (VR) is measured at a reverse bias current of 10µA. 4. Junction capacitance is measured at a reverse voltage of 6V and a frequency of 1MHz. 5. Transition time is measured between 20% and 80% points on the voltage recovery trace. Test conditions are +10mA and –10 volts. Suggested Design Considerations Minimum and Suggested Values of Minority Lifetime (TL) for SRD vs. Multiplier Input Frequency Approximate Minimum Breakdown Voltage Required for SRD at Various Output Power Levels vs. Output Frequency Specifications Subject to Change Without Notice. 3 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. RoHs Compliant Silicon Step Recovery Diodes MA43000, MA44600 Series V4 Case Styles 4 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. RoHs Compliant Silicon Step Recovery Diodes MA43000, MA44600 Series V4 Case Styles 5 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information.