Diodes - RF

Category Introduction

RF Diodes are a semiconductor device with two terminals that allows the flow of electricity in one direction and restricts the flow in the other. The devices in this family are used in radio frequency matching circuits for electronic tuning. The diode types are pin, Schottky, and standard, with reverse voltages ranging from 1 to 15,000 volts and current values ranging from 10 mA to 20 A.

Product List

2451 Items

Mfr Part #	Quantity Available	UnitPrice	Packaging	Product Status	Diode Type	Voltage - Peak Reverse (Max)	Current - Max	Capacitance @ Vr, F	Resistance @ If, F	Power Dissipation (Max)	Operating Temperature	Package / Case	Supplier Device Package
BAR8802VH6327XTSA1 RF DIODE PIN 80V 250MW SC79-2 Infineon Technologies	1,124	$0.49	Tape & Reel (TR)	Not For New Designs	PIN - Single	80V	100 mA	0.4pF @ 1V, 1MHz	600mOhm @ 10mA, 100MHz	250 mW	150°C (TJ)	SC-79, SOD-523	PG-SC79-2
BAR66E6327HTSA1 RF DIODE PIN 150V 250MW SOT23-3 Infineon Technologies	1,049	$0.51	Tape & Reel (TR)	Active	PIN - 1 Pair Series Connection	150V	200 mA	0.6pF @ 35V, 1MHz	1.8Ohm @ 5mA, 100MHz	250 mW	-	TO-236-3, SC-59, SOT-23-3	PG-SOT23
SMP1340-040LF RF DIODE PIN 50V 750MW 0402 Skyworks Solutions Inc.	741	$0.39	Tape & Reel (TR)	Active	PIN - Single	50V	150 mA	0.3pF @ 5V, 1MHz	1.2Ohm @ 10mA, 100MHz	750 mW	-65°C ~ 150°C (TA)	0402 (1005 Metric)	0402
SMP1345-040LF RF DIODE PIN 50V 750MW 0402 Skyworks Solutions Inc.	1,799	$0.40	Tape & Reel (TR)	Active	PIN - Single	50V	150 mA	0.2pF @ 5V, 1MHz	2Ohm @ 10mA, 100MHz	750 mW	-65°C ~ 150°C (TA)	0402 (1005 Metric)	0402
SMP1320-079LF RF DIODE PIN 50V 250MW SC79 Skyworks Solutions Inc.	7	$0.43	Tape & Reel (TR)	Active	PIN - Single	50V	-	0.3pF @ 30V, 1MHz	900mOhm @ 10mA, 100MHz	250 mW	-65°C ~ 150°C (TA)	SC-79, SOD-523	SC-79
BAT1503WE6327HTSA1 DIODE SCHOTTKY 4V 100MW SOD323-2 Infineon Technologies	988	$0.57	Tape & Reel (TR)	Active	Schottky - Single	4V	110 mA	0.35pF @ 0V, 1MHz	-	100 mW	150°C (TJ)	SC-76, SOD-323	PG-SOD323-2
SMS7621-040LF RF DIODE SCHOTTKY 2V 750MW 0402 Skyworks Solutions Inc.	1,418	$0.58	Tape & Reel (TR)	Active	Schottky - Single	2V	150 mA	0.25pF @ 0V, 1MHz	-	750 mW	-65°C ~ 150°C (TA)	0402 (1005 Metric)	0402
SMS7621-079LF RF DIODE SCHOTTKY 2V 75MW SC79 Skyworks Solutions Inc.	1,666	$0.59	Tape & Reel (TR)	Active	Schottky - Single	2V	50 mA	-	-	75 mW	-65°C ~ 150°C (TA)	SC-79, SOD-523	SC-79
SMS7630-040LF RF DIODE SCHOTTKY 1V 250MW 0402 Skyworks Solutions Inc.	548	$0.59	Tape & Reel (TR)	Active	Schottky - Single	1V	150 mA	0.3pF @ 150mV, 1MHz	-	250 mW	-65°C ~ 150°C (TA)	0402 (1005 Metric)	0402
SMP1322-079LF RF DIODE PIN 50V 250MW SC79 Skyworks Solutions Inc.	378	$0.65	Tape & Reel (TR)	Active	PIN - Single	50V	-	1pF @ 30V, 1MHz	500mOhm @ 10mA, 100MHz	250 mW	-65°C ~ 150°C (TA)	SC-79, SOD-523	SC-79
SMP1345-079LF RF DIODE PIN 50V 250MW SC79 Skyworks Solutions Inc.	1,066	$0.65	Tape & Reel (TR)	Active	PIN - Single	50V	-	0.2pF @ 5V, 1MHz	2Ohm @ 10mA, 100MHz	250 mW	-65°C ~ 150°C (TA)	SC-79, SOD-523	SC-79
SMS3922-001LF RF DIODE SCHOTTKY 8V 75MW SOT23 Skyworks Solutions Inc.	210	$0.70	Tape & Reel (TR)	Active	Schottky - Single	8V	50 mA	-	-	75 mW	150°C (TJ)	TO-236-3, SC-59, SOT-23-3	SOT-23-3
SMS3924-079LF RF DIODE SCHOTTKY 70V 75MW SC79 Skyworks Solutions Inc.	635	$0.69	Tape & Reel (TR)	Active	Schottky - Single	70V	50 mA	-	-	75 mW	150°C (TJ)	SC-79, SOD-523	SC-79
SMP1322-005LF RF DIODE PIN 50V 250MW SOT23-3 Skyworks Solutions Inc.	159	$0.75	Tape & Reel (TR)	Active	PIN - 1 Pair Series Connection	50V	-	1pF @ 30V, 1MHz	500mOhm @ 10mA, 100MHz	250 mW	-65°C ~ 150°C (TA)	TO-236-3, SC-59, SOT-23-3	SOT-23-3
BAT1504WH6327XTSA1 DIODE SCHOTTKY 4V 100MW SOT323-3 Infineon Technologies	422	$0.67	Tape & Reel (TR)	Active	Schottky - 1 Pair Series Connection	4V	110 mA	0.35pF @ 0V, 1MHz	-	100 mW	150°C (TJ)	SC-70, SOT-323	PG-SOT323
SMP1304-079LF RF DIODE PIN 200V 250MW SC79 Skyworks Solutions Inc.	345	$0.81	Tape & Reel (TR)	Active	PIN - Single	200V	-	0.3pF @ 30V, 1MHz	2Ohm @ 100mA, 100MHz	250 mW	-65°C ~ 150°C (TA)	SC-79, SOD-523	SC-79
BAR81WH6327XTSA1 DIODE STANDAR 30V 100MW SOT343-4 Infineon Technologies	1,040	$0.71	Tape & Reel (TR)	Active	Standard - Single	30V	100 mA	0.9pF @ 3V, 1MHz	1Ohm @ 5mA, 100MHz	100 mW	150°C (TJ)	SC-82A, SOT-343	PG-SOT343-4-2
SMP1307-011LF RF DIODE PIN 200V 250MW SOD323 Skyworks Solutions Inc.	777	$0.89	Tape & Reel (TR)	Active	PIN - Single	200V	-	0.3pF @ 30V, 1MHz	3Ohm @ 100mA, 100MHz	250 mW	-65°C ~ 150°C (TA)	SC-76, SOD-323	SOD-323
SMP1330-040LF RF DIODE PIN 50V 750MW 0402 Skyworks Solutions Inc.	722	$0.93	Tape & Reel (TR)	Active	PIN - Single	50V	150 mA	1pF @ 0V, 1MHz	1.9Ohm @ 10mA, 100MHz	750 mW	-65°C ~ 150°C (TA)	0402 (1005 Metric)	0402
SMP1330-005LF DIODE STANDARD 20V 250MW SOT23-3 Skyworks Solutions Inc.	324	$1.16	Tape & Reel (TR)	Active	Standard - 1 Pair Series Connection	20V	100 mA	1pF @ 0V, 1MHz	1.5Ohm @ 10mA, 100MHz	250 mW	-65°C ~ 150°C (TA)	TO-236-3, SC-59, SOT-23-3	SOT-23-3

About RF Diodes

What are RF Diodes?

RF Diodes

RF Diodes, or Radio Frequency Diodes, are semiconductor devices specifically designed to operate at radio frequencies. They are integral components in RF circuits, serving various functions such as rectification, switching, and signal modulation. The basic operating principle of an RF diode involves the use of a p-n junction, which allows current to flow in one direction while blocking it in the opposite direction. This unidirectional flow of current is crucial for converting alternating current (AC) signals into direct current (DC) signals, a process known as rectification. RF diodes are optimized to handle high-frequency signals, making them essential in wireless communication systems.

Types of RF Diodes

1. Schottky Diodes

Schottky diodes are known for their low forward voltage drop and fast switching speed, making them ideal for high-frequency applications. They are commonly used in RF mixers and detectors due to their ability to efficiently convert RF signals into DC signals.

2. PIN Diodes

PIN diodes are characterized by their wide intrinsic layer, which allows them to function effectively as RF switches and attenuators. They are widely used in RF and microwave circuits for controlling signal amplitude and phase.

3. Varactor Diodes

Varactor diodes, also known as varicap diodes, are used for tuning applications. They exhibit a variable capacitance that changes with the applied reverse voltage, making them suitable for frequency modulation and tuning in RF circuits.

4. Tunnel Diodes

Tunnel diodes are known for their negative resistance region, which allows them to amplify signals at microwave frequencies. They are used in oscillators and amplifiers within RF systems.

How to choose RF Diodes?

When selecting RF diodes, several key parameters must be considered:

Frequency Range: Ensure the diode can operate efficiently within the desired frequency range of your application.
Power Handling: Consider the maximum power the diode can handle without degradation.
Switching Speed: Evaluate the diode's ability to switch quickly, which is crucial for high-speed applications.
Forward Voltage Drop: A lower forward voltage drop is preferable for efficient operation.
Reverse Recovery Time: Shorter recovery times are beneficial for high-frequency applications.

To assess product quality and reliability, review supplier certifications, customer reviews, and product datasheets. Consider environmental factors such as temperature range and humidity, and ensure proper installation to avoid performance degradation.

Applications of RF Diodes

1. Telecommunications

In the telecommunications industry, RF diodes are used in signal modulation and demodulation, frequency mixing, and switching applications. They enable efficient transmission and reception of signals in mobile phones, satellite communications, and radio broadcasting.

2. Consumer Electronics

RF diodes are integral in consumer electronics, such as televisions and radios, where they help in tuning and signal processing. Varactor diodes, in particular, are used for tuning circuits in TV tuners and FM radios.

3. Aerospace and Defense

In aerospace and defense, RF diodes are used in radar systems, electronic warfare, and communication systems. Their ability to handle high-frequency signals makes them suitable for these demanding applications.

4. Medical Equipment

RF diodes are used in medical imaging equipment, such as MRI machines, where they assist in signal detection and processing. Their precision and reliability are crucial for accurate diagnostic imaging.

5. Automotive Industry

In the automotive industry, RF diodes are used in advanced driver-assistance systems (ADAS) and vehicle communication systems. They facilitate the processing of radar signals for collision avoidance and adaptive cruise control.