SMP1331-087LF

45 W Surface Mount Series Connected PIN Diode

The SMP1331-087LF is a surface mountable, low-capacitance silicon PIN diode designed as a series connected PIN diode for high-power, high-volume switch and attenuator applications from 10 MHz to beyond 6 GHz.

Typical resistance at 100 mA is 0.50 Ω and maximum capacitance at 30 V is 0.35 pF. The combination of low capacitance, low parasitic inductance, and nominal 30 μm I-region width, makes the SMP1331-087LF useful in large signal switches and attenuator applications.

The device has a 0.75 W dissipation power rating, which makes it capable of handling up to 45 W @ 85 °C Continuous Wave (CW) in a series-connected transmit/receive (T/R) switch.

Design information for high-power switches may be found in the Skyworks Application Note, Design With PIN Diodes (document number 200312).

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Specifications

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Min. V_B I_R = 10 µA (V)200

C_T V_R = 30 V (pF)0.35

V_F I_F = 10 mA (V)0.8

R_S I_F = 1 mA F = 100 MHz (Ω)9

R_S I_F = 10 mA F = 100 MHz (Ω)1.7

R_S I_F = 100 mA F = 100 MHz (Ω)0.5

Typical Carrier Lifetime I_F = 10 mA (ns)600

Features

High RF power handling: 45 W
Low thermal resistance: 26 °C/W
Low series resistance: 0.50 Ω typical @ 100 mA
Low total capacitance: 0.35 pF maximum @ 30 V
Small QFN (2 × 2 mm) package (MSL1, 260 °C per JEDEC J-STD-020)

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