Step Recovery Diodes MA43000, MA44600, MA44700 Series V3.00 Features ● ● ● ● Low Transition Times Tight Capacitance Ranges High Voltage and Low Thermal Resistance for Higher Input Power Surface Mount Package Available (SOT-23) Description 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. Applications High Order Narrow Band Moderate Power Multipliers (MA44600 series) Comb Generators (MA43592, MA43543) High Power Circuit Tested Multiplier (MA43000 Series) Surface Mount Low Power Multipliers (MA44700 Series) Specifications Subject to Change Without Notice. M/A-COM, Inc. North America: 1 Tel. (800) 366-2266 Fax (800) 618-8883 ■ Asia/Pacific: Tel. +81 (03) 3226-1671 Fax +81 (03) 3226-1451 ■ Europe: Tel. +44 (1344) 869 595 Fax +44 (1344) 300 020 Step Recovery Diodes MA43000, MA44600, MA44700 Series V3.00 Electrical Specifications @ 25°C Snap Varactors Model1 Number Minimum2 Reverse Voltage VR (Volts) Junction3 Capacitance Range (Cj) Min./Max. (pF) Minimum Lifetime 10 mA/6 mA TI (ns) Nominal Max. MA44621A 20 0.2 / 0.3 7 50 100 MA44621B 20 0.3 / 0.4 7 50 100 MA44621C 20 0.4 / 0.5 7 50 100 MA44622A 20 0.5 / 0.7 7 50 100 MA44622B 20 0.7 / 0.9 7 50 100 MA44631A 30 0.3 / 0.5 8 70 100 MA44631B 30 0.5 / 0.7 8 70 100 MA44631C 30 0.7 / 0.9 8 70 100 MA44641A 40 0.4 / 0.6 12 90 150 MA44641B 40 0.6 / 0.8 12 90 150 MA44641C 40 0.8 / 1.1 12 90 150 MA44652A 50 0.5 / 0.7 15 150 200 MA44652B 50 0.7 / 0.9 15 150 200 MA44652C 50 0.9 / 1.1 15 150 200 MA44663A 60 0.7 / 0.9 20 250 300 MA44663B 60 0.9 / 1.1 20 250 300 MA44663C 60 1.1 / 1.5 20 250 300 MA44663D 60 1.5 / 2.0 20 250 300 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 in chip form, add the suffix “134” to the model number. The nominal chip size for the MA44600 series is 15 mils. Transition Time TS4 (ps) 2. Reverse voltage (VR) is measured at a reverse bias current of 10 µA. 3. Junction capacitance is measured at a reverse voltage of 6 volts and a frequency of 1 MHz. 4. Transition time is measured between 20% and 80% points on the voltage recovery trace. Test conditions are +10 mA and -10 volts. Case Styles (See appendix for complete dimensions) 91 30 93 134 Specifications Subject to Change Without Notice. M/A-COM, Inc. 2 North America: Tel. (800) 366-2266 Fax (800) 618-8883 ■ Asia/Pacific: Tel. +81 (03) 3226-1671 Fax +81 (03) 3226-1451 ■ Europe: Tel. +44 (1344) 869 595 Fax +44 (1344) 300 020 Step Recovery Diodes MA43000, MA44600, MA44700 Series V3.00 Electrical Specifications @ 25° C (Cont’d) High Power Circuit Tested Step Recovery Diodes Output Frequency (GHz) Maximum Input Power (Watts) Min./Max.2 Reverse Voltage VR (Volts) Model Number Case1 Style Minimum Output Power (Watts) MA43000 103 4.0 0.333 2.0 15 85 - 105 MA43002 91 1.5 2.000 6.0 5 45 - 70 MA43004 91 0.3 3.300 13.0 2 30 - 45 Input Frequency (GHz) Model Number Min./Max.3 Junction Capacitance Cj (pF) Min./Max. Lifetime, TL 10 mA/6 mA (ns) Maximum Snap Time, TS -10V/10 mA (ps) Maximum Thermal Resistance, jc (C/W) MA43000 3 - 4.50 250 - 500 600 12 MA43002 1.60 - 2.40 75 - 225 250 25 MA43004 0.45 - 0.85 20 - 50 150 45 Surface Mount Step Recovery Diodes (SOT-23) Min./Max. Total Capacitance (pF) Minimum Reverse Voltage VR (Volts) Model Number f = 1 MHz VR = 6 V IR = 10µA MA44767 3 - 4.5 MA44768 1.6 - 2.4 MA44769 0.8 -1.2 30V Suggested Nominal Carrier Lifetime TL (ns) Maximum Transition Time TS (psec) Nominal Input Frequency (GHz) Nominal Output Frequency (GHz) 250 - 500 600 0.05 - 0.5 0.5 - 1.5 75 - 225 250 0.1 - 1 0.5 - 2.5 20 - 50 150 0.1 - 1 1-5 Notes: 1. The standard case styles are indicated for each model number. Other case styles are available. Consult the factory for information. 2. Reverse voltage is measured at reverse bias current of 10 µA. 3. Junction capacitance is measured at a reverse bias of 6 volts and a frequency of 1 MHz. Case styles (See appendix for complete dimensions) 103 91 SOT-23 (High Profile) Specifications Subject to Change Without Notice. M/A-COM, Inc. North America: 3 Tel. (800) 366-2266 Fax (800) 618-8883 ■ Asia/Pacific: Tel. +81 (03) 3226-1671 Fax +81 (03) 3226-1451 ■ Europe: Tel. +44 (1344) 869 595 Fax +44 (1344) 300 020 Step Recovery Diodes MA43000, MA44600, MA44700 Series V3.00 Electrical Specifications @ 25° C (Cont’d) High Order Step Recovery Diode Varactors for Use in Comb Generation Min./Max.3 Reverse Voltage VR (Volts) Min./Max.4 Junction Capacitance Cj (pF) Min./Max. Carrier Lifetime, TL (ps) Maximum Snap Time, TS -10V/10 mA (ps) Maximum Thermal Resistance jc(C/W) Nominal2 Output Frequency (GHz) Model Number Case1 Style Maximum2 Input Power (Watts) MA43592 30 1.0 25 - 40 0.2 - 0.30 9 - 27 90 70 1 - 12 MA43543 93 1.5 20 - 50 0.2 - 0.55 10 - 25 60 125 2 - 20 Notes: 1. The standard case styles are indicated for each model number. For other available case styles, consult the factory. 2. This is an operable output frequency range and does not imply instantaneous bandwidth. 3. Breakdown voltage is measured at a reverse bias voltage of 10 µA. 4. Junction capacitance is measured at a reverse bias voltage of 6 volts and a frequency of 1 MHz. Case Styles (See appendix for complete dimensions) 93 30 Absolute Maximum Ratings @ 25°C Parameter Absolute Maximum Temperature Range Operating Range -65°C to +200°C -65°C to +125°C (SOT-23 only) Storage Range -65°C to +200°C -65°C to +125°C (SOT-23 only) 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-S19500, MIL-STD-202 and MIL-STD-750 which specify mechanical, electrical, thermal and other environmental tests common to military semiconductor products. Specifications Subject to Change Without Notice. M/A-COM, Inc. 4 North America: Tel. (800) 366-2266 Fax (800) 618-8883 ■ Asia/Pacific: Tel. +81 (03) 3226-1671 Fax +81 (03) 3226-1451 ■ Europe: Tel. +44 (1344) 869 595 Fax +44 (1344) 300 020