Can IN4007 and FR107 diodes be replaced?

The IN4007 and FR107 diodes can be replaced. These two types of diodes.

The current is the same, the recovery (cut-off) time FR107GW is N times faster than 1N4007, 1N4007 can only rectify low frequency, FR107GW can also rectify high frequency, the on-voltage drop FR107GW is low, and the FR107GW loss is small, regardless of high frequency or low frequency. FR107GW is more than enough instead of 1N4007.

FR107 diode can replace 1N4007, but whether 1N4007 can replace FR107 depends on the occasion, if it is an ordinary low-frequency rectifier circuit is OK, but in high-frequency occasions such as turning off the power supply is not possible.

Both 1N4007 and FR107 are rectifier diodes that convert alternating current to direct current. For rectifier diodes, the two important parameters are the same for the reverse withstand voltage and forward current: the reverse withstand voltage is 1000 volts, and the forward current is 1 ampere.

However, 1N4007 is a kind of PN junction rectifier tube, which belongs to the ordinary low-frequency rectifier diode, which is mostly used in 50 Hz alternating current and rectifier circuits after step-down of traditional transformers.

FR107 is a metal-semi-conduit rectifier, also known as Schottky rectifier tube, fast recovery diode, is a kind of hot carrier diode, belongs to the high-frequency rectifier diode, its reverse recovery time is much faster than 1N4007, that is to say, the operating frequency of FR107 can be much higher than 1N4007). FR107 is mostly used in the rectification of the secondary stage of switching power supply circuits. Due to the high working frequency here, generally above 40kHz, if you replace FR107 with 1N4007, it will not work normally.

Comparison of the two:

The Schottky barrier height is lower than the PN junction barrier height, and its forward conduction threshold voltage and forward voltage drop are lower (about lower) than those of the PN junction diode.

Schottky tube is a kind of majority carrier conductive device, there is no minority carrier lifetime and reverse recovery problems, and its reverse recovery time is only the charging and discharging time of Schottky barrier capacitor, which is completely different from the reverse recovery time of PN junction diode. Due to the very low reverse recovery charge of Schottky tubes, the switching speed is very fast and the switching losses are particularly low, making them particularly suitable for high-frequency applications.

However, the reverse breakdown voltage is relatively low due to the thin reverse barrier of Schottky tubes and the high susceptibility to breakdown on their surfaces. Since Schottky tubes are more susceptible to thermal breakdown than PN junction diodes, the reverse leakage current is larger than PN junction diodes.

Depending on the environment in which you are using, FR107 can replace IN4007, but IN4007 cannot replace FR107 in some cases.

1N4007 is an ordinary slow and blunt diode, parameters: 1000mA, 1000V, recovery time is greater than 1000ns, because it does not belong to the fast recovery class has no clear time.

FR107 is a fast recovery diode, parameters: 1000mA, 1000V, recovery time 300ns.

Therefore, if there is no requirement for recovery time, it can be universal, and only FR107 can be used at high frequencies

The cheap 1N4007 is available, but not the best, and the PLC may have been damaged before the diode has had time to play its freewheeling role.

Therefore, the best way to protect the freewheeling diode is to use the "fast 1N4007" is FR107, which can have better protection for the PLC output port and the cost will not be too high.

Choose IN5819 or 5817 Yes! Better performance than FR107, slightly higher cost.

IN5819 5817 is a Schottky diode, IN5817; The IN5819 package is DO-41

Maximum peak reverse voltage: 40V

Maximum reverse RMS voltage: 28V

Maximum DC blocking voltage: 40V

Maximum forward average rectification current: 1A

Maximum Forward Pressure Drop:

Diode for 1N4007.

It is the most common and the lowest, and other diodes with the performance of imitation sail crack higher than it can replace it, so the cost will increase, so it is best not to use other diodes for standby instead. If you have frequent maintenance, you can prepare some spare ones at ordinary times. Unless there is no inventory in hand, in case of emergency, you can use other better performance, higher withstand voltage, and larger current instead, at this time, you have to sacrifice the cost to emergency, which is not an ideal way.

ER204 isFast recoveryDiode (400V 2A.)35nsSuitable for use inHigh-frequency environments, 1N4007 is an ordinary type (withstand voltage 1000V, the current of the whole car is 1A. ）Not suitable for high-frequency environmentsUse. The two are not interchangeable.

Substitution depends on the matching parameters.

RL207 is a rectifier diode, can not be replaced by IN4007, RL207 is a 1000V2A rectifier tube, 1N4007 is a 1000V1A rectifier tube, both withstand voltage is 1000V, but the rectifier current is different.

The rectifier diode can be made of semiconductor germanium or silicon and other materials, the breakdown voltage of the silicon rectifier diode is high, the reverse leakage current is small, and the high temperature performance is good.

After the rectifier diode is damaged, it can be replaced with a rectifier diode of the same model or another rectifier diode of the same type with the same parameters.

In general, a rectifier diode with a high withstand voltage (reverse voltage) can replace a rectifier diode with a low withstand voltage value, while a rectifier diode with a low withstand voltage value cannot replace a rectifier diode with a high withstand voltage value.

A diode with a high rectifier current value can replace a diode with a low rectifier current value, while a diode with a low rectifier current value cannot replace a diode with a high rectifier current value.

FR107 is a fast recovery rectifier diode 100 tube, with a reverse recovery time of 250ns, a maximum forward current of 1A, and a reverse withstand voltage of 1000V, which is usually used in low-power switching power supplies.

IN4007 is an ordinary rectifier diode with a maximum forward current of 1 A and a reverse withstand voltage of 1000V, which is generally used in the power frequency power supply of ordinary transformers with low power.

The IN4007 and FR107 diodes can be replaced. These two diode currents are the same, the recovery (cut-off) time FR107GW is N times faster than 1N4007, 1N4007 can only rectify low frequency, and the balance loss FR107GW can also rectify high frequency, the on-voltage drop FR107GW is low, and the FR107GW loss is small, regardless of high frequency or low frequency. FR107GW is more than enough instead of 1N4007.

UF4007 is a fast recovery diode, which is generally used in high-frequency applications; 1N4007 is a common channel diode, which is used in low-frequency occasions, and is 1000V0 1A as well as other parameter base books.

The internal structure of the fast recovery diode is different from that of ordinary PN junction diodes, which belongs to the PIN junction diode, that is, the base region I is added between the P-type silicon material and the N-type silicon material to form the P silicon wafer. Because the base region is thin and the reverse recovery charge is small, the fast recovery diode has a short reverse recovery time, a low forward voltage drop, and a high reverse breakdown voltage (withstand voltage value).

The IN4007 and FR107 diodes can be replaced. These two diodes have the same current, the same back pressure recovery (cut-off) time FR107GW is N times faster than 1N4007, 1N4007 can only rectify low frequency, FR107GW can also rectify high frequency, on-voltage drop FR107GW is low, FR107GW loss is small, regardless of high frequency or low frequency. FR107GW is more than enough instead of 1N4007.

The only difference is that the 1N4004 and 1N4007 are rectifier diodes with no recovery time, while the FR107 and FR104 are fast recovery diodes with 250ns and 500ns recovery times.

If there is no recovery time requirement in your circuit, it can be replaced, and if there is a recovery time requirement, it can not be replaced.

FR107 is a fast recovery rectifier diode with a reverse recovery time of 250ns, a forward current of 1A, and a withstand voltage of 1000V. It is used in low-power switching power supplies. IN4007 is an ordinary rectifier diode, with a maximum forward current of 1 A and a reverse withstand voltage of 1000V, which is rectified in the power frequency power supply.