SMP1302 Series

Switch and Attenuator Plastic Packaged PIN Diodes

The SMP1302 series of plastic packaged, surface mountable, low capacitance (0.3 pF) silicon PIN diodes is designed for highvolume switch and attenuator applications from 10 MHz to beyond 2 GHz.

These diodes are designed for use in low- distortion PI and TEE attenuators with low drive current (maximum resistance at 1 mA is 10 Ω) commonly used in TV distribution and cellular base station applications. The nominal 50 μm I region width, combined with a maximum resistance of 3 Ω at 10 mA, makes these diodes useful in large signal switch applications.

The SMP1302 series provides single and dual diodes in a selection of plastic packages including SOT-23, SOD-323, small footprint SC-79, an ultralow inductance (0.2 nH) SOT-143 (SMP1302-017), and miniature SC-70.

A four-diode array is available in an SOT-5 package (SMP1302- 027) designed for insertion in the commonly used four-diode PI attenuator circuits.

SMP1302 Series includes SMP1302-078LF, SMP1302-040LF, SMP1302-003LF, SMP1302-011LF and SMP1302-079LF.

Please note: SMP1302-001LF and SMP1302-074LF are being discontinued and are not recommended for new designs.

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Min. VB IR = 10 µA (V)200
CT VR = 30 V (pF)0.30 Max.
VF IF = 10 mA (V)0.80 Typ.
RS IF = 1 mA F = 100 MHz (Ω)20 Max.
RS IF = 10 mA F = 100 MHz (Ω)3 Max.
RS IF = 100 mA F = 100 MHz (Ω)1.5 Max.
Typical Carrier Lifetime IF = 10 mA (ns)700


  • Designed for base station and handset applications
  • Low-distortion design
  • Available in tape and reel packaging
  • Packages rated MSL1 @ 260 °C per JEDEC J-STD-020

Product Documents

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