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| UM4300 / UM7300 FOR ATTENUATOR APPLICATIONS O S DESCRIPTION The UM4300 and UM7300 series combine a diode chip of extremely thick intrinsic region with a low thermal resistance construction. This results in diodes uniquely applicable to very low distortion linear attenuators and specialized functions. The UM4300 series, with large cross-sectional chip area offers the highest power capability, of the two series. The UM7300 series offers lower capacitance. Both diode series are intended for use in linear attenuators operating from HF to beyond 1 GHz. Low distortion is a result of transit time frequencies below 5 MHz. Operated as RF switches, either diode series can be operated at low dc reverse bias voltages, to hold off much higher RF voltage levels. KEY FEATURES WWW .Microsemi .C OM Extremely low distortion performance Useful frequency range extends below 500 kHz Power dissipation to 20 W (UM4300) Capacitance as low as 0.7 pF (UM7300) Voltage ratings to 1000V Non cavity design Thermally matched configuration IMPORTANT: For the most current data, consult MICROSEMI's website: http://www.microsemi.com ABSOLUTE MAXIMUM RATINGS AT 25 C (UNLESS OTHERWISE SPECIFIED) Package A B&E C D SM All Condition O 25 C Pin Temperature UM4300 PD 20 W 7.5 oC/W 10 W 15 oC/W 2.5 W 20 W 7.5 oC/W 15 W 10 C/W 15 W 20 C/W 500 kW o o UM7300 PD 7.5 W 4W 7.5 W 6W 20 OC/W 37.5 OC/W 20 C/W 25 C/W O O Compatible with automatic insertion equipment 1/2 in. total length to 25 OC Contact Free Air O 25 C Stud Temperature 25 C Stud Temperature 25 C End Cap Temperature 1 us pulse (Single) O O APPLICATIONS/BENEFITS Isolated stud package available Surface mount package available RoHS compliant packaging available: use UMX4301SM, etc. 5.5 W 18 OC/W 100 kW VOLTAGE RATINGS Reverse Voltage @ 10 uA 100 200 400 600 800 1000 UM4301 UM4302 UM4306 UM4310 UM7301 UM7302 UM7306 UM7310 UM4300 SERIES UM4300 SERIES Style "B" Style "SM" Copyright 2005 Rev. 0, 2006-04-27 Microsemi Page 1 UM4300 / UM7300 FOR ATTENUATOR APPLICATIONS O S WWW .Microsemi .C OM Parameter Reverse Current (Max) Series Resistance(Max) Series Resistance(Min) Capacitance (Max) Parallel Resistance(Min) Carrier Lifetime(Min) I-Region Width (Min) Symbol IR RS RS CT RP Conditions At rated voltage If = 100 mA, F= 100 MHz If = 10 uA, F= 100 MHz VR = 100 V, F = 1 MHZ VR = 100 V, F = 100 MHz IF = 10 mA - UM4300 10 1.5 1000 2.2 200k 6.0 250 UM7300 10 3.0 3000 0.7 150k 4.0 250 Units uA Ohms Ohms pF Ohms us um W Rs versus If TYPICAL 105 104 UM7300 10 3 Rs (Ohms) 102 UM4300 101 f= 100 MHz 10 0 10 -1 ELECTRICALS ELECTRICALS 10 -6 10 -5 -4 10 10 -3 -2 10 10 -1 10 0 If (mA) Copyright 2005 Rev. 0, 2006-04-27 Microsemi Page 2 UM4300 / UM7300 FOR ATTENUATOR APPLICATIONS O S WWW .Microsemi .C OM UM4300 PARALLEL RESISTANCE versus REVERSE VOLTAGE TYPICAL 103 100 MHz 102 Rp (kOhms) 500 MHz 1 GHz 101 100 100 101 102 103 Vr (V) UM7300 PARALLEL RESISTANCE versus REVERSE VOLTAGE TYPICAL 102 100 MHz 500 MHz 1 GHz Rp (kOhms) 3 GHz 101 100 100 101 102 103 Vr (V) Copyright 2005 Rev. 0, 2006-04-27 Microsemi Page 3 UM4300 / UM7300 FOR ATTENUATOR APPLICATIONS O S WWW .Microsemi .C OM UM4300 Ct versus Vr TYPICAL 6 f = 1 MHz 4 Ct (pF) f = 5 MHz 2 f = 10 MHz f => 100 MHz 0 1 10 100 1000 Vr (Volts) UM7300 Ct versus Vr TYPICAL 6 5 4 f = 1 MHz Ct (pF) 3 ELECTRIICALS ELECTRIICALS ELECTR CALS ELECTR CALS f = 5 MHz 2 f = 10 MHz 1 f => 100 MHz 0 1 10 100 1000 Vr (Volts) Copyright 2005 Rev. 0, 2006-04-27 Microsemi Page 4 UM4300 / UM7300 FOR ATTENUATOR APPLICATIONS O S WWW .Microsemi .C OM PULSE THERMAL IMPEDANCE VERSUS WIDTH TYPICAL o PULSE THERMAL IMPEDANCE ( C/W) 102 101 10 0 UM4300 UM7300 10-1 10-2 10-3 10-6 10-5 10-4 10-3 10-2 10-1 100 PULSE WIDTH (SEC) POWER RATING STUD MOUNTED DIODES 20 18 W MAX POWER DISSIPATION (W) 15 15 W UM4300C UM4300D ELECTRICALS ELECTRICALS 10 7.5 W 6W 5 UM7300D UM7300C 0 0 25 50 75 100 STUD TEMPERATURE ( C) Copyright 2005 Rev. 0, 2006-04-27 125 o 150 175 Microsemi Page 5 UM4300 / UM7300 FOR ATTENUATOR APPLICATIONS O S WWW .Microsemi .C OM UM4300 UM7300 ELECTRICALS ELECTRICALS Copyright 2005 Rev. 0, 2006-04-27 Microsemi Page 6 UM4300 / UM7300 FOR ATTENUATOR APPLICATIONS O S WWW .Microsemi .C OM UM4300/UM7300 NORMALIZED Rs versus TEMPERATURE 1.3 NORMALIZED DIODE RESISTANCE 1.2 1.1 1.0 0.9 0.8 0.7 -60 -40 -20 0 20 40 o 60 80 100 120 TEMPERATURE ( C) Vf versus If TYPICAL 100 10-1 10 -2 If (A) ELECTRICALS ELECTRICALS UM4300 10-3 UM7300 10 -4 10-5 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 Vf (V) Copyright 2005 Rev. 0, 2006-04-27 Microsemi Page 7 UM4300 / UM7300 FOR ATTENUATOR APPLICATIONS O S WWW .Microsemi .C OM UM4300 STYLE "A" STYLE "B" STYLE "C" STYLE "CR" MECHANICAL MECHANICAL MECHANICAL Copyright 2005 Rev. 0, 2006-04-27 Microsemi Page 8 UM4300 / UM7300 FOR ATTENUATOR APPLICATIONS O S WWW .Microsemi .C OM UM4300 STYLE "D" STYLE "DR" STYLE "E" STYLE "SM" MECHANICAL MECHANICAL MECHANICAL MECHANICAL Copyright 2005 Rev. 0, 2006-04-27 Microsemi Page 9 UM4300 / UM7300 FOR ATTENUATOR APPLICATIONS O S WWW .Microsemi .C OM UM7300 STYLE "A" STYLE "B" STYLE "C" STYLE "CR" MECHANICAL MECHANICAL Copyright 2005 Rev. 0, 2006-04-27 Microsemi Page 10 UM4300 / UM7300 FOR ATTENUATOR APPLICATIONS O S WWW .Microsemi .C OM UM7300 STYLE "D" STYLE "DR STYLE "E" STYLE "SM" MECHANICAL MECHANICAL Copyright 2005 Rev. 0, 2006-04-27 Microsemi Page 11 UM4300 / UM7300 FOR ATTENUATOR APPLICATIONS O S WWW .Microsemi .C OM UM4300 STYLE "SM" FOOTPRINT MECHANICAL MECHANICAL Copyright 2005 Rev. 0, 2006-04-27 Microsemi Page 12 UM4300 / UM7300 FOR ATTENUATOR APPLICATIONS O S WWW .Microsemi .C OM UM7300 STYLE "SM" FOOTPRINT NOTES: 1. These dimensions will match the terminals and provide for additional solder fillets at the outboard ends at least as wide as the terminals themselves, assuming accuracy of placement within 0.005" 2. If the mounting method chosen requires use of an adhesive separate from the solder compound, a round (or square) spot of cement as shown should be centrally located. MECHANICAL MECHANICAL Copyright 2005 Rev. 0, 2006-04-27 Microsemi Page 13 UM4300 / UM7300 FOR ATTENUATOR APPLICATIONS O S NOTES: WWW .Microsemi .C OM NOTES NOTES Copyright 2005 Rev. 0, 2006-04-27 Microsemi Page 14 |
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