UM9401F MICROSEMI | Alldatasheet
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Technical content
Page 1Copyright 2005 Rev. 0, 2005-10-17 WWW.Microsemi .COM UM9401F CERAMIC SURFACE MOUNT PIN DIODE
DESCRIPTION
With high isolation, low loss, and low distortion characteristics, this Microsemi ceramic package PIN diode is perfect for two-way radio antenna switch applications where size and power handling capability are critical. Its advantages also include the low forward bias resistance and high zero bias impedance that are essential for low loss, high isolation, and wide bandwidth antenna switch performance. Its square design makes this device ideal for use with automatic insertion equipment. IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com ABSOLUTE MAXIMUM RATINGS AT 25º C (UNLESS OTHERWISE SPECIFIED) Maximum reverse voltage 50 V Average power dissipation contact surfaces @ 25 oC 4.0 W Thermal resistance
25 OC Contacts
37.5 OC/W
1.5 W Operating and storage temperature -65 oC to +175 oC KEY FEATURES High power surface mount package Specified low distortion, low loss Low bias current requirements High zero bias impedance Very low inductance and capacitance Passivated PIN diode chip Hermetically sealed Compatible with automatic insertion equipment APPLICATI ONS/BENEFITS RoHS compliant packaging available: use UMX9401F UUMM99440011FF
Page 2Copyright 2005 Rev. 0, 2005-10-17 WWW.Microsemi .COM UM9401F CERAMIC SURFACE MOUNT PIN DIODE UM9401F ELECTRICAL PARAMETERS @ 25°C (unless otherwise specified) Parameter Symbol Conditions Min Typ. Max Units Series resistance Rs F = 100 MHz IF = 50 mA 0.5 0.75 Ohms Capacitance C T F = 1 MHz, V R = 50 V 0.75 0.90 pF Parallel resistance R P F = 100 MHz, V R = 0 V 10k Ohms Carrier lifetime τ IF = 10 mA 2.0 4.0 µs Transmit Harmonic distortion PIN = 50 W F = 50 MHz IF = 50 mA -dB Receive 3rd order harmonic distortion F = 100 MHz V = 0 V FA = 50 MHz FB = 51 MHz -dB Voltage rating VR IR = 1 µA V Forward Voltage V F IF = 100 mA 1.0 V
Page 3Copyright 2005 Rev. 0, 2005-10-17 WWW.Microsemi .COM UM9401F CERAMIC SURFACE MOUNT PIN DIODE 1 10 100 1000 Vr (Volts) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Ct (pF) Ct versus Vr TYPICAL f = 1 MHz f = 100 MHz UM9401F -610 -510 -410 -310 -210 -110 010 If (mA) -110 010 110 210 310 Rs (Ohms) Rs versus If TYPICAL f = 100 MHz UM9401F EELLEECCTTRRIICCAALLSS
Page 4Copyright 2005 Rev. 0, 2005-10-17 WWW.Microsemi .COM UM9401F CERAMIC SURFACE MOUNT PIN DIODE FORWARD VOLTAGE -610 -510 -410 -310 -210 -110 010 FORWARD CURRENT (A) FORWARD VOLTAGE versus CURRENT TYPICAL UM9401F OUTLINE UM9401F FOOTPRINT EELLEECCTTRRIICCAALLSS
Page 5Copyright 2005 Rev. 0, 2005-10-17 WWW.Microsemi .COM UM9401F CERAMIC SURFACE MOUNT PIN DIODE 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 should be centrally located. MMEECCHHAANNIICCAALL
Page 6Copyright 2005 Rev. 0, 2005-10-17 WWW.Microsemi .COM UM9401F CERAMIC SURFACE MOUNT PIN DIODE NOTES: NNOOTTEESS