RF Diodes For Broadband Applications RF Diodes For Broadband Applications

Skyworks Solutions offers a select group of their most popular PIN, limiter, Schottky, and tuning varactor diodes that are designed to meet demanding applications, and are available to ship from stock for prototype or high-volume production.

Low-Barrier Silicon Schottky Diode: SMS7621-060 Low-Barrier Silicon Schottky Diode: SMS7621-060

The SMS7621-060 is a silicon, low-barrier N-type Schottky diode. This surface mount diode has an ultra-miniature 0201 footprint, and a low series resistance which enables great performance as a low-level mixer at frequencies above 26 GHz.

Surface Mount Limiter Diode: CLA4603-085LF

The CLA4603-085LF is a surface mountable, low capacitance silicon PIN limiter diode constructed with a combination of low junction capacitance, low parasitic inductance, low thermal resistance, and nominal 1.5 μm I-region width, making it useful in large signal limiter applications.

Very Low Capacitance Silicon PIN Diodes: SMP1345 Series Very Low Capacitance Silicon PIN Diodes: SMP1345 Series

The SMP1345 series is composed of surface mountable PIN diodes are specifically designed for WLAN 802.11 a/b/g applications and are ideally suited for diversity switch applications. The series has an RF performance that is assured by virtue of their very low capacitance (0.15 pF) and low resistance (1.5 Ω at 10 mA).

Schottky Detector Diode: SMSA7630-061 Schottky Detector Diode: SMSA7630-061

The SMSA7630-061 from Skyworks is a zero bias silicon Schottky detector diode with an ultra-miniature 0201 footprint. This P-type diode has a low junction capacitance for excellent detections in frequencies up to 77 GHz, and can be used with sensitive video detector circuits and sampling circuits.

Silicon Hyperabrupt Tuning Varactor Diodes: SMV2201-SMV2205 Series Silicon Hyperabrupt Tuning Varactor Diodes: SMV2201-SMV2205 Series

The SMV2201-SMV2205 series is composed of silicon hyperabrupt junction varactor diodes. These surface mount, high Q, low series resistant diodes are designed especially for wide bandwidth, low-loss applications.

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Diodes are very useful items. A diode is a tiny piece of electronic equipment usually found on circuit boards and transistors that do a simple job. Diodes are to make current flow in only one direction. It’s a very simple thing that most people take for granted. It allows current to flow one way – which is called zero resistance, but it becomes infinitely resistive in the other way there by not allowing any current to flow in the other way. Imagine attaching a diode to an alternating current source. In alternating current, electricity flows in one way then in the other. If a diode were to be placed in the circuit, the alternating current would then be converted to direct current. This would happen because when the circuit is directing traffic in one way the diode will allow the current to pass. However when it oscillates to the other way, the diode will block it. As such, the circuit will only see current flowing in one way downstream from the diode.

Diodes are built in a vacuum chamber where there is an electrode and an anode plate inside. It is pretty much the same structure as a capacitor except where the capacitor is meant to accumulate a charge, a diode is meant to direct it in only one way. It is possible to place a diode and a capacitor in a series to get a situation where a charge is built up in the capacitor with e direct current then discharge at a certain threshold downstream. The combinations and the resulting outcomes with various diodes can be made to do almost any command and control function of a circuit board.