SMP1304 Series

Low-Distortion Attenuator Plastic Packaged PIN Diodes

Please note: this product series is being discontinued and is not recommended for new designs.

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.

Data Sheets

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Specifications

Min. V_B I_R = 10 µA (V)200

C_T V_R = 30 V (pF)0.30 Max.

V_F I_F = 10 mA (V)0.80 Typ.

R_S I_F = 1 mA F = 100 MHz (Ω)50 Max.

R_S I_F = 10 mA F = 100 MHz (Ω)7 Max.

R_S I_F = 100 mA F = 100 MHz (Ω)2.0 Max.

Typical Carrier Lifetime I_F = 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

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