SMP1304 Series

Low-Distortion Attenuator Plastic Packaged PIN Diodes


The SMP1304 series of plastic packaged, surface mountable, low capacitance (0.3 pF) silicon PIN diodes is designed for attenuator applications from 5 MHz to beyond 2 GHz.

The thick 100 μm I region of these PIN diodes makes them very attractive for use in low-distortion PI and TEE attenuators commonly found in TV distribution applications.

The 1 μs typical carrier lifetime of these diodes results in a resistance of 20 Ω maximum at 1 mA and 7 Ω maximum at 10 mA.

The SMP1304 series is available in a selection of plastic packages: as a single diode in a small footprint SOD-323 package, and in a variety of configurations in an SOT-23 package, including the low inductance (0.4 nH) SMP1304-007.

The SMP1304-019, a three-diode junction designed for insertion in PI attenuators, is available in an SOT-143 package. The SMP1304-027 is available in an SOT-5 package as a fourdiode array designed for insertion in commonly used four-diode PI attenuator circuits.

SMP1304 Series includes SMP1304-005LF, SMP1304-006LF, SMP1304-027LF and SMP1304-079LF.

Specifications

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)50 Max.
RS IF = 10 mA F = 100 MHz (Ω)7 Max.
RS IF = 100 mA F = 100 MHz (Ω)2.0 Max.
Typical Carrier Lifetime IF = 10 mA (ns)1000

Features

  • Low-distortion design
  • Frequency range from 5 MHz to >2 GHz
  • Designed for base station applications
  • Configured for PI and TEE attenuators
  • Packages rated MSL1 @ 260 °C per JEDEC J-STD-020

Product Documents