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Diode Bridge GBU808

Name: Diode Bridge GBU808 - Royal Electronics Technology Center Co.
Price: 11.80 CAD
Availability: InStock

$11.80

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Diode Bridge GBU808

*8A

*800V

*Single Phase

*Rectifier IC Chip

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Category: Accessories Tag: Diode

Description

Diode Bridge GBU808

The Diode Bridge GBU808 is an 8 Amp, 800 Volt bridge rectifier, commonly used to convert alternating current (AC) to direct current (DC).

The Diode Bridge GBU808 is a single-phase bridge rectifier, meaning it’s designed for use with a two-wire AC input.

The Diode Bridge GBU808 is known for its robust construction and ability to handle high currents, making it suitable for various industrial and commercial applications.

Here’s a more detailed breakdown about:

Function: It functions as a bridge rectifier, converting AC input to DC output.
Current Rating: It can handle a forward current of 8 Amps.
Voltage Rating: It can withstand a peak reverse voltage of 800 Volts.
Construction: It’s typically a 4-pin, through-hole mounted component.
Applications: It’s used in power supplies, motor controls, welding equipment, and other electronic circuits requiring efficient rectification and high voltage capability.
Operating Temperature: The GBU808 can operate within a temperature range of -55°C to +150°C.

A diode bridge, also known as a bridge rectifier, is an electrical circuit that converts alternating current (AC) into direct current (DC).

It uses four or more diodes arranged in a bridge configuration to achieve full-wave rectification. This means it converts both the positive and negative parts of the AC waveform into positive (or negative) voltage.

Here’s a more detailed explanation:

Function:

The primary function of a diode bridge is to take an AC input (like from a wall outlet) and produce a DC output, which is used to power many electronic devices.
How it works:

In a diode bridge, four diodes are arranged in a way that during the positive half-cycle of the AC input, two diodes conduct, and during the negative half-cycle, the other two diodes conduct, ensuring that current always flows in the same direction through the load (the component or circuit that uses the DC power).
Full-wave rectification:

This process, called full-wave rectification, means that both halves of the AC waveform are used to produce DC, resulting in a more efficient and smoother DC output compared to half-wave rectification.
Applications:

Diode bridges are widely used in power supplies for electronic devices, battery chargers, and various other applications where DC power is needed.

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Diode 1N4007

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$1.85

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Diode 1N4007

The 1N4007 is a very common and versatile silicon rectifier diode. It's part of the 1N400x series of general-purpose diodes, with the "7" indicating its specific voltage rating. Key Characteristics

Rectifier Diode: Its primary function is to convert alternating current (AC) into pulsating direct current (DC) by allowing current to flow in only one direction.
High Reverse Voltage Rating: The 1N4007 can withstand a peak repetitive reverse voltage ( $V_{RRM}$ ) of 1000V. This makes it suitable for high-voltage applications.
Average Forward Current: It can handle an average forward current ( $I_{F}$ ) of 1 Ampere (1A).
Forward Voltage Drop: When conducting in the forward direction, it has a relatively low forward voltage drop ( $V_{F}$ ) of approximately 0.7V to 1.1V. This voltage drop represents the power lost within the diode.
Surge Current Capability: It can handle a non-repetitive peak surge current ( $I_{FSM}$ ) of up to 30A for short durations, which is useful for handling initial power-on surges.
Package Type: It typically comes in a DO-41 axial-lead package, which is a small, cylindrical plastic package with leads on both ends.
Operating Temperature Range: It operates reliably over a wide temperature range, typically from -55°C to +175°C.

How it Works Like all diodes, the 1N4007 is a PN-junction device. It consists of a P-type semiconductor and an N-type semiconductor joined together.

Forward Bias: When a positive voltage is applied to the anode (P-side) and a negative voltage to the cathode (N-side), the diode is forward-biased. If the applied voltage exceeds the forward voltage drop (around 0.7V for silicon diodes), the diode conducts, allowing current to flow from anode to cathode.
Reverse Bias: When a negative voltage is applied to the anode and a positive voltage to the cathode, the diode is reverse-biased. In this state, the diode acts like an open switch, blocking current flow. The 1N4007 is designed to withstand up to 1000V in this reverse-biased state before breaking down.

Common Applications The 1N4007's robust characteristics make it popular in a wide range of electronic circuits, including:

Rectifier Circuits:
- Half-wave and Full-wave Rectifiers: Essential for converting AC power from the mains (like in household appliances) to DC power for electronic devices.
- Bridge Rectifiers: Used to convert the entire AC waveform into pulsating DC, achieving more efficient rectification.
Power Supplies: Used for rectifying the AC input in power supply units to provide DC voltage to various components.
Voltage Protection:
- Reverse Polarity Protection: Prevents damage to circuits if the power supply is connected with incorrect polarity.
- Freewheeling Diodes (Flyback Diodes): Protect sensitive components from voltage spikes generated by inductive loads (like relays, motors, and solenoids) when their magnetic field collapses.
- Voltage Spike Suppression: Helps to suppress transient voltage spikes that can occur due to switching events or lightning, safeguarding delicate electronics.
Inverters and Converters: Used in various power conversion circuits.
Current Flow Regulation: Can be used in simple current limiting or flow control applications.

Due to its high reverse voltage rating, the 1N4007 is often a go-to choice when a general-purpose rectifier diode is needed, especially in circuits that might experience higher voltages.

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Metal Case Diode Bridge KBPC5010

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$26.25

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Metal Case Diode Bridge KBPC5010

The Metal Case Diode Bridge KBPC5010 is a specific type of bridge rectifier, a crucial electronic component used to convert alternating current (AC) into direct current (DC). It is widely employed in various power supply applications. Here's a breakdown of its key features and what each part of its name signifies: What is a Bridge Rectifier? A bridge rectifier is a circuit of four (or more) diodes in a specific configuration that allows for full-wave rectification. This means it efficiently converts both the positive and negative half-cycles of an AC input into a pulsating DC output. Compared to simpler half-wave rectifiers, bridge rectifiers are more efficient and provide a smoother DC output.

KBPC5010 Explained

KBPC: This is typically a series designation for a family of single-phase bridge rectifiers with specific package styles.
50: This number indicates the maximum average forward rectified current (Io) the device can handle, which in this case is 50 Amperes (A). This high current rating makes it suitable for demanding applications.
10: This number typically refers to the voltage class, often indicating a maximum repetitive peak reverse voltage (VRRM) of 1000 Volts (V) (where '10' often means 10 x 100V). This high voltage rating allows it to handle substantial AC input voltages.

Metal Case Design The "metal case" is a significant feature. The metal housing serves as a heat sink, which is essential for dissipating the heat generated by the diodes during operation, especially when handling high currents. This helps maintain optimal operating temperatures, ensuring the device's reliability and longevity. The case often has a central mounting hole for easy attachment to an external heat sink for even better thermal management. The internal components are usually encapsulated with epoxy resin for electrical insulation and flame resistance. Key Specifications and Features

Conversion: Converts single-phase AC to pulsating DC.
Current Rating: Up to 50 Amperes (A) average forward current.
Voltage Rating: Up to 1000 Volts (V) repetitive peak reverse voltage.
Surge Current Capability: Often capable of handling high non-repetitive surge currents (e.g., 400A or 450A for a short duration), which is crucial for handling initial power-on transients.
Low Forward Voltage Drop: Minimizes power loss and improves efficiency.
High Reliability: Designed for robust performance in various environments.
Mounting: Typically features through-hole mounting with a screw hole for chassis or heatsink mounting.
Terminals: Often uses 0.25" (6.35 mm) Faston terminals for easy connection. Some variants (like KBPC5010W) might have wire leads.
Operating Temperature: Wide operating junction temperature range, often from -40°C to +150°C.

Common Applications Due to its high current and voltage capabilities, the KBPC5010 is commonly found in:

Power supplies: As a core component to rectify AC mains voltage into DC for electronic devices.
Battery chargers: Converting AC power to DC for charging batteries.
Motor control circuits: Providing DC power for electric motors.
Industrial control systems: Used in various industrial applications requiring AC-to-DC conversion.
Input rectifiers for variable frequency drives (VFDs).

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Micro Limit Switch

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$24.30

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Micro Limit Switch

A micro limit switch, often simply called a micro switch, is a type of electrical switch that's characterized by its small size and the precise, rapid action it takes when a minimal amount of force is applied to its actuator. It's designed to detect the presence or position of an object or the end of a mechanical movement. These switches are known for their:

High sensitivity: They require very little force to activate.
Rapid response: The internal contacts "snap" open or closed very quickly, regardless of how slowly the actuator is pressed. This snap-action mechanism helps to reduce arcing and extends the switch's lifespan.
Reliability: They are built to withstand millions of operations, making them durable for long-term use.
Compact size: Their small footprint allows them to be used in applications where space is limited.

How it Works A micro switch typically consists of:

Actuator: This is the external part that an object or mechanical component presses against. It can be a button, a lever (with or without a roller), a plunger, or other forms.
Internal spring mechanism: This provides the "snap-action." When the actuator is pressed to a certain point (the "trip point"), the spring mechanism rapidly moves the contacts.
Contacts: These are the electrical components that open or close the circuit. Micro switches usually have three terminals:
- Common (C): The input terminal.
- Normally Open (NO): This contact is open (no current flows) when the switch is unactivated and closes when the switch is actuated.
- Normally Closed (NC): This contact is closed (current flows) when the switch is unactivated and opens when the switch is actuated

When the actuator is pressed, it reaches a specific "operating point" where the contacts change their state (either from NO to closed, or NC to open). When the pressure is removed, the actuator returns to its original position, and the contacts revert to their normal state. Applications Micro limit switches are incredibly versatile and found in a vast array of devices and systems due to their precision and reliability. Some common applications include:

Household Appliances:
- Microwave ovens: To detect if the door is closed before operating.
- Washing machines: For door interlocks and water level detection.
- Refrigerators: To turn the light on/off when the door opens/closes.
- Printers: To detect paper jams or the position of paper.
Automotive Industry:
- Car doors: To detect if a door is open or closed (e.g., for interior lights or security systems).
- Brake pedals: To activate brake lights.
- Seat belt mechanisms: To detect if a seat belt is fastened.
Industrial Automation:
- Conveyor systems: To detect the presence of items or the end of travel for a belt.
- Robotic arms: For precise positioning and limit detection of movement.
- Machine safety guards: To ensure guards are correctly positioned before machinery operates.
- Elevators and hoists: To prevent over-travel and ensure proper door operation.
Consumer Electronics:
- Computer mice and keyboards: For button clicks.
- Vending machines: For coin detection or jam detection.
Medical Equipment:
- In various diagnostic tools and surgical instruments for precise control.

Types of Micro Limit Switches Micro limit switches come in various configurations, primarily differing by their actuator type, which dictates how they interact with the mechanical force. Common actuator types include:

Pin Plunger: A simple button-like plunger that is directly pressed.
Roller Lever: Features a lever with a roller at the end, ideal for applications with sliding or rotating components.
Hinge Lever: A simple lever arm that pivots to actuate the switch.
Flexible Roller: Similar to a roller lever, but with a more flexible arm to accommodate irregular surfaces or wider ranges of motion.
Spring Plunger: A plunger supported by a spring, allowing for a certain degree of "overtravel" beyond the actuation point without damaging the switch.

Other variations include sealed micro switches for harsh environments (resistant to dust and moisture) and subminiature types for extremely compact applications.

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Mercury Level Switch

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$9.15

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Mercury Level Switch

A mercury level switch is a type of electrical switch that uses a small amount of liquid mercury to open or close an electrical circuit based on its position or the level of a liquid. Essentially, the mercury acts as a conductive bridge between electrical contacts. How it Works The core component of a mercury level switch is a sealed glass or metal capsule containing one or more electrical contacts and a small, free-moving drop of mercury. When the switch or the liquid it's monitoring changes its tilt or level:

Tilt Switches: Gravity pulls the mercury to the lowest point within the capsule. If the tilt is sufficient, the mercury will flow to connect two or more contacts, completing an electrical circuit. Tilting it in the opposite direction moves the mercury away, breaking the circuit.
Float Switches: In liquid level applications, the mercury switch is often integrated with a float mechanism. As the liquid level rises or falls, the float moves, which in turn tilts the mercury switch, causing the mercury to connect or disconnect the contacts.
Displacement Switches: Some designs use a "plunger" that dips into a pool of mercury, raising the mercury level to contact an electrode and complete the circuit.

Applications Historically, mercury level switches were used in a wide range of applications due to their reliability and the non-eroding nature of mercury contacts. These included:

Thermostats: In older thermostats, they controlled heating and cooling systems.
Sump Pumps: Used to automatically turn on the pump when water levels rise.
Appliances: Found in washing machines (for lid switches and load balancing), chest freezers (for lid lights), and some gas appliances like ovens and water heaters (as flame sensors).
Automotive Industry: Previously used for trunk lid lights, ride control, and anti-lock braking systems.
Industrial Settings: Utilized in liquid level control and safety systems.
Roll Sensing/Tip-over Warnings: For construction equipment or other vehicles operating on uneven terrain.

Advantages and Disadvantages Advantages:

Durability and Reliability: The sealed contacts prevent oxidation, leading to a long lifespan.
Quiet Operation: No abrupt snapping of contacts.
No Contact Erosion: Mercury's liquid nature prevents the wear and tear seen in mechanical contacts.
Spark-Free: They don't produce sparks when making or breaking circuits, making them suitable for hazardous environments.

Disadvantages:

Toxicity of Mercury: This is the primary and most significant disadvantage. Mercury is a highly toxic substance, posing serious environmental and health risks if released.
Environmental Concerns: Improper disposal of mercury switches can lead to widespread contamination. Due to these concerns, the use of mercury switches has been largely phased out in many applications, especially in new products.
Sensitivity to Gravity/Orientation: While an advantage for tilt sensing, it makes them unsuitable for portable or mobile devices where orientation changes or vibrations could cause false readings.
Limited Functionality: Most mercury switches provide only a simple on/off function.

Due to the toxicity of mercury, many applications that once relied on mercury switches have transitioned to safer, alternative technologies such as solid-state sensors, optical sensors, or mechanical float switches.

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Diode 1N5408

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$4.45

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Diode 1N5408

The 1N5408 is a common general-purpose rectifier diode. It's designed to allow electric current to flow primarily in one direction, making it crucial for converting alternating current (AC) to direct current (DC). Think of it like a one-way valve for electricity. It belongs to the 1N540x series of power diodes, known for their ability to handle relatively high current and voltage. Here are its key characteristics and common uses: Key Features

High Reverse Voltage Rating: It can withstand a maximum repetitive reverse voltage ( $V_{RRM}$ ) of 1000V. This means it can block high voltages when current tries to flow in the "wrong" direction.
High Forward Current Capacity: It's rated for an average rectified forward current ( $I_{F (A V)}$ ) of 3 Amperes (A). This indicates it can handle a significant amount of current flowing through it in the correct direction.
High Surge Current Capability: The 1N5408 can handle non-repetitive peak forward surge currents ( $I_{FSM}$ ) of up to 200A for short durations, protecting circuits from sudden power spikes.
Low Forward Voltage Drop: When conducting, it has a relatively low forward voltage drop ( $V_{F}$ ) of approximately 1.0V to 1.2V at its rated current. A lower voltage drop means less power is lost as heat.
Standard Recovery: It's a "standard recovery" diode, meaning its switching speed is relatively slow compared to fast recovery diodes. This makes it suitable for power rectification at lower frequencies (like 50/60 Hz AC).
DO-201 Package: It typically comes in a DO-201 axial-leaded package, which is a through-hole component with leads extending from both ends, allowing for easy mounting on circuit boards.
Wide Operating Temperature Range: It can operate and be stored in a wide temperature range, typically from -65°C to +175°C.

Applications The robust nature of the 1N5408 makes it a staple in various electronic designs:

Power Supplies and Rectifiers: This is its primary application. It efficiently converts AC input voltage into pulsating DC, which can then be smoothed by capacitors to provide a stable DC output for electronic devices. This includes full-wave and half-wave rectifier circuits.
Battery Chargers: Used to convert AC wall power into DC for charging batteries.
Voltage Regulation Circuits: Helps in maintaining a stable output voltage by rectifying current.
Protection Circuits: Its ability to block reverse current makes it useful for reverse polarity protection, preventing damage to sensitive components if the power supply is connected incorrectly.
Freewheeling Diode: Used in inductive circuits (like those with relays or motors) to provide a path for stored energy to dissipate when the current is switched off, preventing voltage spikes that could damage other components.
Voltage Doubler Circuits: Can be used in circuits designed to effectively double the input voltage.