You can find the FR107 diode in power electronics. This introduction to fr107 shows a fast-recovery diode. It turns off quickly, so it is good for changing AC to DC. The fr107 diode is special because it is fast and can handle 1A current and 1000V peak voltage. Its DO-41 package makes it strong and easy to put in. You should look at the datasheet, pinout, and features before using it. The introduction to fr107 shows this rectifier is great for efficient circuits. Use this introduction to fr107 to learn how a fast-recovery diode works. When you read about fr107, you see why this diode is important.
Key Takeaways
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The FR107 diode can handle 1A current and 1000V voltage. It switches fast, so it works well in power supplies. It is also good for changing AC to DC quickly.
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The pinout must be correct. The band shows the cathode. Connecting it right keeps your circuit working and safe.
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The DO-41 package protects the diode well. It lets heat move away and is easy to mount. This makes the diode last longer and work better.
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You can use diodes like HER158 or HER208 instead of FR107. But always check the voltage and current ratings first.
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Stay safe by using a heat sink if you are near max current. Keep soldering heat below 260°C to protect the diode and your circuit.
FR107 Diode Datasheet
Key Specs
Before you use the FR107 diode, you should know its main specs. The datasheet helps you check these important numbers fast. Here is a table that lists the key performance details:
| Characteristic | Value |
|---|---|
| Maximum Average Forward Current (I_AV) | 1A |
| Peak Reverse Voltage (VRRM) | 1000V |
| Peak Forward Surge Current (IFSM) | 30A (8.3ms single half sine-wave) |
| Reverse Leakage Current (IR) | 5μA @ 1000V |
| Typical Forward Voltage Drop | ~1V at 1A |
| Recovery Time | Fast (typically under 500ns) |
The FR107 diode can handle high voltage and current. It also switches off very quickly. This makes it good for circuits that need fast changes. The datasheet says it can take a surge current up to 30A for a short time. That means it is strong and works well in power supplies.
Ratings
Looking at the ratings helps you see how the FR107 diode works when stressed. The datasheet shows the highest average forward current is 1A. The peak reverse voltage is 1000V. It can take a surge current of 30A for a short time, like when you turn on a device. The reverse leakage current is very low, only about 5μA at 1000V. Low leakage keeps your circuits safe and efficient.
Tip: Always read the datasheet for the exact ratings before using the diode. This helps you stop damage and keeps your circuit working right.
Package
The FR107 diode uses a DO-41 axial package. This package is common for through-hole mounting. Here are the main size details:
| Parameter | Value |
|---|---|
| Body Length | 4.06 mm to 5.21 mm |
| Maximum Diameter | 2.16 mm |
| Lead Spacing (Pitch) | 400 mil (10.16 mm) |
The DO-41 package has metal leads. These leads help move heat away from the diode. This keeps it cool and working well. The plastic body protects the inside from damage. You can put this package on a printed circuit board (PCB) easily. This makes building circuits simple and helps keep quality the same.
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The DO-41 package gives you:
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Good heat flow for better performance.
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Strong protection for the diode.
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Easy to handle and mount.
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Reliable use in many circuits.
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When you pick the FR107 diode, you get a part that is easy to use and trustworthy. The datasheet and package info help you choose the best part for your project.
Diode Pinout
Understanding the pinout of the FR107 diode helps you connect it correctly in your circuit. If you use the wrong pin, your circuit may not work or could get damaged. The pinout diagram shows you where the anode and cathode are located. You can find this information on the datasheet or by looking at the physical diode.
Terminal Markings
When you look at the FR107 diode, you will see a band on one end. This band marks the cathode. The other end, without the band, is the anode. The pinout uses these markings to help you place the diode the right way. If you check the pin configuration, you will see:
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The anode connects to the positive side of your circuit.
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The cathode connects to the negative side or ground.
Here is a simple table to help you:
| Terminal | Marking | Function |
|---|---|---|
| Anode | No band | Input (+) |
| Cathode | Silver/white band | Output (–) |
You can also find the schematic symbol for the diode in the pinout diagram. The symbol has a triangle (anode) pointing to a line (cathode). This matches the markings on the real part.
Polarity
Polarity is very important for the FR107 diode. You must connect the anode and cathode correctly. Current flows from the anode to the cathode. If you reverse the pinout, the diode will block current and your circuit will not work. Always double-check the pinout before soldering or plugging the diode into your board.
Tip: Use the band marking as a quick guide. The band always shows the cathode side.
Correct pinout placement keeps your circuit safe and working well. If you follow the pinout diagram and check the pin configuration, you will avoid common mistakes. This simple step saves you time and protects your components.
Features and Specs
Electrical Features
The FR107 fast-recovery diode is special because of its electrical features. It can turn off very quickly, which helps circuits work faster. The table below shows the main electrical details:
| Electrical Feature | Value |
|---|---|
| Reverse Recovery Time | 500 ns |
| Forward Voltage Drop (at 1A) | 1.3 V |
| Peak Reverse Voltage Max | 1000 V |
| Average Forward Current Max | 1 A |
| Typical Junction Capacitance | 15 pF |
These features make the FR107 good for high-speed circuits. It does not waste much power because the forward voltage drop is low. The fast recovery time lets it handle quick current changes. This is important in things like switch-mode power supplies and inverters. You can use this diode when you need to change AC to DC fast and easily.
The fast-recovery diode is great for circuits that need quick switching and can handle high voltage. You can use it in power supplies, flyback converters, and solar inverters. Its high voltage rating and strong surge ability help keep your circuit safe when things change suddenly.
Mechanical Features
The FR107 diode’s mechanical features help it last a long time and work in hard places. It comes in a strong DO-41 package with metal leads. These leads make it simple to put the diode on your board. The glass body helps move heat away and keeps the inside safe.
You can solder this diode at high heat, up to 260°C for 10 seconds, and it will not break. Its tough build means it lasts long, so you can use it in factories and power electronics. The small size lets you put it in tight spots on your board. It also has high surge ability and low power loss, which helps your circuit work well.
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Main mechanical features:
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Glass body helps with heat
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Axial leads make mounting easy
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Handles high soldering heat
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Strong design for long use
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Small size fits many places
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These features make the FR107 fast recovery diode a good choice for many uses. You can count on it to work well in both home and factory projects.
Equivalent Diodes
Common Equivalents
If you need to replace the fr107, you must find a part with similar main features. The FR107 is special because it can handle up to 1000V and works well in fast-switching circuits. If you cannot get the FR107, you can use other diodes that work the same way. Some popular choices are HER158 and HER208. These diodes also work well with high voltage and give strong results.
You should always check the datasheet for each replacement. Look at the voltage rating, current rating, and recovery time. These things help you know if the new diode will work in your project. Many engineers pick HER158 or HER208 because they have close voltage ratings and fast recovery times. This makes them good for power supply and rectifier circuits.
Note: Always make sure the voltage and current ratings match when you pick a replacement. This keeps your circuit safe and working right.
Comparison
You might want to know how these replacement diodes compare. The table below shows the main differences and similarities:
| Model | Max Voltage | Max Current | Recovery Time | Package |
|---|---|---|---|---|
| FR107 | 1000V | 1A | 500ns | DO-41 |
| HER158 | 1000V | 1A | 500ns | DO-41 |
| HER208 | 1000V | 2A | 500ns | DO-15 |
You can see HER158 is just like FR107 in voltage, current, and speed. HER208 can handle more current, so use it if your circuit needs more power. Both HER158 and HER208 are good choices for most uses.
If you need to swap the fr107, check the features in this table. Choose the one that fits your needs best. This helps your project work well and stay safe.
Applications and Use
Typical Circuits
The FR107 is used in many fast-switching circuits. Its quick recovery time and high voltage rating make it popular. Engineers and hobbyists like to use it for many reasons. Here are some common ways you can use the FR107:
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Power supply rectifiers: The FR107 changes AC to DC in power supplies. Its fast switching helps save energy.
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Battery chargers: The FR107 works well in battery chargers with low current. It is good when you need a quick response.
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Fast rectification circuits: You can use it in circuits that handle signals quickly. This includes inverters and LED drivers.
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Signal mixing circuits: The FR107 helps mix signals in audio or communication devices.
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Signal isolation: It can separate signals from a power supply. This keeps sensitive parts of your circuit safe.
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Switching power supplies: The FR107 is useful in fast-switching electronic devices.
You will see this part in switching power supplies and inverters. It is also found in communication equipment. Its fast-switching ability helps circuits work better and last longer.
Safe Operation
You must follow some rules to keep the FR107 safe. The table below shows the main safe limits:
| Parameter | Value |
|---|---|
| Maximum Repetitive Peak Reverse Voltage (VRRM) | 1000 V |
| Maximum Average Forward Rectified Current (IF(AV)) | 1 A continuous |
| Peak Forward Surge Current (IFSM) | 8 A (8.3 ms half sine wave) |
| Operating Junction Temperature Range (TJ) | -65°C to +150°C |
Tip: Use a heat sink if you run the FR107 near its top current. This keeps it cool and helps it last longer.
Connect the FR107 with the right polarity. The band shows the cathode side. Do not go over the maximum reverse voltage. When you solder, keep the heat under 260°C. Only heat each joint for about 3 seconds.
If you use the FR107 with big capacitors, lower the current. This stops it from getting too hot. This step is called derating and helps prevent damage.
You do not need to worry about the FR107 going away. It is still made and sold by big companies. You can use it in new projects without worry.
You have learned the important facts about the fr107 diode. The table below shows its main features, pinout, and uses in a simple way:
| Aspect | Details |
|---|---|
| Package | DO-41 axial |
| Features | Fast switching, high reliability, low leakage |
| Pinout | Band marks cathode, easy to identify |
| Equivalents | HER208, HER158, UF4007 |
| Uses | Power management, chargers, electronics |
You should always read the datasheet before using the diode. Follow safety rules to keep your circuit safe. If you cannot get this diode, you can use a similar one. Make sure to lower the current for better safety and longer life.
FAQ
What is the main use of the FR107 diode?
You use the FR107 diode to change AC to DC in power supplies. Its fast recovery time makes it perfect for circuits that need quick switching, like chargers and inverters.
How do you identify the cathode on the FR107 diode?
Look for the silver or white band on one end of the diode. This band marks the cathode. The other end is the anode.
Can you replace the FR107 with another diode?
Yes, you can use diodes like HER158, HER208, or UF4007 as replacements. Always check the voltage and current ratings before you swap them.
What happens if you connect the FR107 diode backward?
If you connect the FR107 backward, it blocks current flow. Your circuit will not work as expected. Always match the anode and cathode to the correct points.
Is the FR107 diode suitable for high-frequency circuits?
Yes, the FR107 works well in high-frequency circuits. Its fast recovery time lets you use it in switching power supplies and other fast electronic devices.
Written by Jack Elliott from AIChipLink.
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