UM4300_09

UM4300 / UM7300 SWITCHING / ATTENUATOR PIN DIODES 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         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 Isolated stud package available W WW . Microsemi . C O M ABSOLUTE MAXIMUM RATINGS AT 25º C (UNLESS OTHERWISE SPECIFIED) UM4300 Pkg A B&E C D SM ALL UM7300 Condition 25 °C Pin Temperature ½ in. total length to 25 °C Contact Free Air 25 °C Stud Temperature 25 °C Stud Temperature 25 °C End Cap Temperature 1 us pulse (Single) PD (W) θ (°C/W) PD (W) θ (°C/W) 20 10 2.5 20 15 15 7.5 15 7.5 10 20 500 kW 7.5 4 7.5 6 5.5 20 37.5 20 25 18 100 kW APPLICATIONS / BENEFITS      RF Switching RF Attenuators Pick and Place compatible Surface Mount Versions RoHS compliant packaging available: use UMX4301SM, etc 1 VOLTAGE RATINGS Reverse Voltage @ 10uA 100 200 600 1000 Part Number UM4301 UM4302 UM4306 UM4310 UM7301 UM7302 UM7306 UM7310 UM4300 / UM7300 UM4300 / UM7300 IMPORTANT: For the most current data consult MICROSEMI’s website: www.MICROSEMI.com 1 - RoHS compliant versions of the UM4300 and UM7300 are available. Specify UMX4300 or UMX7300 for RoHS version. Consult factory for details. Copyright 2005 Rev: 3/30/2009 Microsemi Microwave Products 75 Technology Drive, Lowell MA 01851 Tel: (978) 442-5600 Page 1 UM4300 / UM7300 SWITCHING / ATTENUATOR PIN DIODES ELECTRICAL CHARACTERISTICS (@ 25°C unless otherwise specified) 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 WW . Microsemi . C O M τ W TYPICAL RS VS IF 100 TYPICAL IF VS VF TYPICAL 10-1 10-2 If (A) 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) RP VS VR (UM4300) 102 RP VS VR (UM4300) 100 MHz 500 MHz 1 GHz Rp (kOhms) 3 GHz 101 GRAPHS GRAPHS 100 100 101 102 103 Vr (V) Copyright 2005 Rev: 3/30/2009 Microsemi Microwave Products 75 Technology Drive, Lowell MA 01851 Tel: (978) 442-5600 Page 2 UM4300 / UM7300 SWITCHING / ATTENUATOR PIN DIODES THERMAL IMP. VS PULSE WIDTH PULSE THERMAL IMPEDANCE ( C/W) 102 NORMALIZED RS VS TEMP. 1.3 o 1 10 NORMALIZED DIODE RESISTANCE 1.2 0 10 UM4300 1.1 UM7300 -1 10 1.0 0.9 W WW . Microsemi . C O M 10-2 0.8 -3 10 -6 10 -5 10 10 -4 10 -3 10 -2 10 -1 0 10 0.7 -60 -40 -20 0 20 40 o 60 80 100 120 PULSE WIDTH (SEC) TEMPERATURE ( C) POWER DISS. VS LEAD TEMP. (UM4300) POWER DISS. VS LEAD TEMP. (UM7300) POWER RATINGS (STUD PKG) 20 18 W MAX POWER DISSIPATION (W) 15 15 W UM4300C UM4300D 10 7.5 W 6W 5 UM7300D UM7300C GRAPHS GRAPHS 0 0 25 50 75 100 125 150 175 STUD TEMPERATURE (oC) Copyright 2005 Rev: 3/30/2009 Microsemi Microwave Products 75 Technology Drive, Lowell MA 01851 Tel: (978) 442-5600 Page 3 UM4300 / UM7300 SWITCHING / ATTENUATOR PIN DIODES PACKAGE STYLES STYLE ‘A’ STYLE ‘B’ W WW . Microsemi . C O M STYLE ‘C’ STYLE ‘CR’ STYLE ‘D’ STYLE ‘DR’ STYLE ‘E’ STYLE ‘SM’ MECHANICAL MECHANICAL Copyright 2005 Rev: 3/30/2009 Microsemi Microwave Products 75 Technology Drive, Lowell MA 01851 Tel: (978) 442-5600 Page 4 UM4300 / UM7300 SWITCHING / ATTENUATOR PIN DIODES UM7300 STYLE ‘SM’ FOOTPRINT UM4300 STYLE ‘SM’ FOOTPRINT W WW . Microsemi . C O M UM7300 Style SM, A Size Footprint UM4300 Style SM, B Size Footprint 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: 3/30/2009 Microsemi Microwave Products 75 Technology Drive, Lowell MA 01851 Tel: (978) 442-5600 Page 5