SMP1322-075

Low Resistance Plastic Packaged PIN Diodes SMP1322 Series Features s Designed for High Performance Wireless Switch Applications s Specified 1.5 Ω @ 1 mA s Multiple Package Configurations Description The SMP1322 series of plastic packaged, surface mountable PIN diodes are designed for high volume switch applications from 10 MHz to beyond 2 GHz. The ultra low resistance of these diodes (1.5 Ω maximum at 1 mA and 0.5 Ω typical at 10 mA) make the SMP1322 series particularly suited to low loss PIN diode switches in battery operated circuits. Available in a selection of plastic packages and in a variety of configurations including an ultra low inductance (0.2 nH) SOT-143 (SMP1322-017), the small footprint SC-79 and the miniature SC-70. In addition, the SMP1322-016 consists of 2 diodes in a SOT-143 package configured to enable insertion in a quarter-wave T/R switch with no crossover connections. Absolute Maximum Ratings Characteristic Reverse Voltage (VR) Power Dissipation @ 25°C Lead Temperature (PD) Storage Temperature (TST) Operating Temperature (TOP) ESD Human Body Model Value 50 V 250 mW -65°C to +150°C -65°C to +150°C Class 1B Single Marking: PN1 SOT-23 o SMP1322-001 Common Cathode Marking: PN3 SOT-23 o SMP1322-004 Series Pair Marking: PN2 SOT-23 o SMP1322-005 Low Inductance Marking: PNB SOT-23 o SMP1322-007 Single T/R Switch Marking: PN6 Ultra Low Inductance Marking: PNC SOT-143 o SMP1322-017 Single SOD-323 o SMP1322-011 SOT-143 o SMP1322-016 SC-79 o SMP1322-079 LS = 1.5 nH LS = 1.5 nH SC-70 o SMP1322-074 LS = 1.5 nH SC-70 o SMP1322-075 LS = 0.4 nH LS = 1.5 nH LS = 1.5 nH LS = 0.2 nH LS = 0.7 nH LS = 1.4 nH o Available through distribution. LS = 1.4 nH Electrical Specifications at 25°C Parameter Reverse Current (IR) Capacitance (CT) Resistance (RS) Resistance (RS) Forward Voltage (VF) Carrier Lifetime (TI) I Region Width Condition VR = 50 V F = 1 MHz, V = 30 V F = 100 MHz, I = 1 mA F = 100 MHz, I = 10 mA IF = 10 mA IF = 10 mA 0.5 0.85 0.4 8 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com Specifications subject to change without notice. 1/01A Typ. Max. 10 1.0 1.5 Unit µA pF Ω Ω V µS µm 1 Low Resistance Plastic Packaged PIN Diodes SMP1322 Series Typical Performance Data 100 100 Series Resistance (Ω) Forward Current (mA) 0.1 1 10 100 10 10 1 1 0.1 0.1 0.01 0.01 400 500 600 700 800 900 1000 Forward Current (mA) Forward Voltage (mV) Series Resistance vs. Current @ 100 MHz 1.4 1.2 DC Characteristic 3000 2500 Capacitance (pF) 1.0 0.8 0.6 0.4 0.2 0 0 1 2 Conductance (µS) 1 MHz–1 GHz 0V 2000 1500 1000 500 10 V 40 V 0 500 1000 1500 2000 5 10 20 50 0 Reverse Voltage (V) Frequency (MHz) Capacitance vs. Reverse Voltage Conductance vs. Frequency and Reverse Voltage Resistance vs. Temperature @ 500 MHz IF (mA) 0.02 0.10 0.30 0.50 1.00 10.00 20.00 100.00 R -55°C (Ω) 9.500 3.000 1.500 1.100 0.922 0.568 0.532 0.483 R -15°C (Ω) 9.400 3.000 1.500 1.100 0.914 0.559 0.520 0.469 R +25°C (Ω) 9.900 3.000 1.500 1.200 0.902 0.533 0.494 0.440 R +65°C (Ω) 10.500 3.300 1.600 1.200 0.963 0.563 0.521 0.464 R +100°C (Ω) 10.900 3.500 1.800 1.400 1.100 0.655 0.610 0.565 SMP1322-007 In the -007 configuration of the SOT-23 package, the package inductance is effectively reduced to 0.4 nH, in comparison to the 1.5 nH value of the standard configuration. This lower inductance will be particularly beneficial when the diodes are used as shunt connected switches at frequencies higher than 500 MHz, where inductance is the primary limitation on maximum switch isolation. To achieve the effective 0.4 nH, the SOT-23 package must be inserted in the microstrip circuit board with a gap in the trace, as shown in the figure. Because Gap of the polarity of the diode junction, this low inductance feature is only realizable with the cathode Ground connected to ground. 2 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com Specifications subject to change without notice. 1/01A Low Resistance Plastic Packaged PIN Diodes SMP1322 Series SMP1322-016 SOT-143 T/R Switch The SMP1322-016 is a low cost PIN diode unconnected pair specifically designed for low current drain antenna T/R switches in hand held wireless suits. In the specifically configured SOT-143 package, the PIN diodes are oriented to enable connection as a λ/4 switch with no external crossover connections. SMP1322-017 SOT-143 Low Inductance PIN Diode The SMP1322-017 utilizes the SMP1322 PIN diode chip in a customized SOT-143 plastic package designed for high isolation performance in a shunt connected switch. Its effective inductance, based on the 3 GHz isolation, is less than 0.2 nH. This diode is designed to work effectively as a shunt element in SPDT switches, covering the wireless frequencies from 900 MHz to beyond 2 GHz. Excellent performance is achievable when used in a quarter-wave T/R switch with the SMP1322-001 (SOT-23) or SMP1322-011 (SOD-323) PIN diode as the series connected diode. 4 3 SMP1322-016 in λ/4 T/R Switch Transmitter 4 Bias GND 3 4 3 2 4 1 Antenna 2 Receiver λ/4 1 2 1 3 1 2 λ/4 T/R Switch Bias Antenna λ/4 Lead Configuration Schematic Switch Connection T/R Switch Design DC Control Antenna Transmitter Receiver Transmitter SMP1322-011 λ /4 Receiver SMP1322-017 25 IF = 10 mA 20 Loss (dB) 15 10 5 Zero Bias 0 0.5 1 2 3 4 Frequency (GHz) SMP1322-017 Typical SPST Switch Performance Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com Specifications subject to change without notice. 1/01A 3 Low Resistance Plastic Packaged PIN Diodes SMP1322 Series SOT-23 0.110 (2.80 mm) MIN. 0.120 (3.04 mm) MAX. 3 SC-70 0.012 (0.30 mm) MIN. 0.020 (0.50 mm) MAX. 0.047 (1.20 mm) MIN. 0.055 (1.40 mm) MAX. 1 2 0.071 (1.80 mm) MIN. 0.087 (2.20 mm) MAX. 0.010 (0.25 mm) MIN. 0.016 (0.40 mm) MAX. 0.071 (1.80 mm) MIN. 0.094 (2.40 mm) MAX. 0.083 (2.10 mm) MIN. 0.104 (2.64 mm) MAX. 3 0.045 (1.15 mm) MIN. 0.053 (1.35 mm) MAX. 0.037 (0.95 mm) REF. 0.020 (0.51 mm) REF. 0.076 (1.92 mm) REF. 1 0.014 (0.35 mm) REF. 2 0.026 (0.65 mm) REF. 0.051 (1.30 mm) REF. 0.003 (0.080 mm) MIN. 0.008 (0.20 mm) MAX. 8˚ MAX. 0.035 (0.89 mm) MIN. 0.044 (1.12 mm) MAX. 0.004 (0.10 mm) MIN. 0.007 (0.18 mm) MAX. 0.031 (0.80 mm) MIN. 0.039 (1.00 mm) MAX. 0.022 (0.55 mm) REF. 0.0005 (0.01 mm) MIN. 0.004 (0.10 mm) MAX. 0.004 (0.10 mm) MIN. 0.012 (0.30 mm) MAX. 0.000 (0.00 mm) MIN. 0.004 (0.10 mm) MAX. SOD-323 0.090 (2.30 mm) MIN. 0.108 (2.74 mm) MAX. 0.010 (0.25 mm) MIN. 0.016 (0.40 mm) MAX. 0.063 (1.60 mm) MIN. 0.071 (1.80 mm) MAX. SC-79 CATHODE 0.006 (0.15 mm) MIN. INDICATOR 0.010 (0.25 mm) MIN. 0.014 (0.35 mm) MAX. 1 2 0.045 (1.15 mm) MIN. 0.053 (1.35 mm) MAX. 1 2 0.028 (0.70 mm) MIN. 0.035 (0.90 mm) MAX. CATHODE INDICATOR 0.060 (1.50 mm) MIN. 0.067 (1.70 mm) MAX. 0.043 (1.10 mm) MIN. 0.051 (1.30 mm) MAX. 0.008 (0.20 mm) NOM. 0.006 (0.15 mm) TYP. 0.050 (1.25 mm) MAX. 0.004 (0.10 mm) MAX. 0.010 (0.25 mm) MIN. 10˚ MAX. 0.003 (0.07 mm) MIN. 0.008 (0.20 mm) MAX. 10˚ MAX. 0.020 (0.50 mm) MIN. 0.028 (0.70 mm) MAX. SOT-143 0.110 (2.80 mm) MIN. 0.120 (3.04 mm) MAX. 0.020 (0.50 mm) REF. 4 0.083 (2.10 mm) MIN. 0.104 (2.64 mm) MAX. 1 0.068 (1.72 mm) REF. 0.028 (0.70 mm) REF. 0.030 (0.76 mm) MIN. 0.035 (0.89 mm) MAX. 0.047 (1.20 mm) MIN. 0.055 (1.40 mm) MAX. 8˚ MAX. 0.003 (0.08 mm) MIN. 0.008 (0.20 mm) MAX. 0.012 (0.30 mm) MIN. 0.020 (0.50 mm) MAX. 2 3 0.076 (1.92 mm) REF. 0.031 (0.80 mm) MIN. 0.047 (1.20 mm) MAX. 0.022 (0.55 mm) REF. 0.0005 (0.01 mm) MIN. 0.004 (0.15 mm) MAX. 4 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com Specifications subject to change without notice. 1/01A