Alternatives to TLP181, TLP521 1 2 4 Is there a replacement model for TLP181?

Thanks to the S06 package, the TLP184 and TLP185 transistor couplers are thinner than their predecessors and can operate at high temperatures (TA = 110 degrees max.).

TLP184 and TLP185 are updates to TLP180 and TLP181 respectively. These models can be easily replaced with these products, as the reference attenuator size of these products is the same as that of the current MFSOP6 package model. And, because they are thinner, they can reduce the installation height from the previous millimeter to the millimeter.

This is because the SO6 package ensures a minimum clearance and creepage distance of 5 mm, instead of 4 mm in the existing MFSOP6 package. Therefore, the maximum permissible operating isolation voltage for these products is 707 VPK, which is specified in EN60747-5-2. Therefore, the TLP184 and TLP185 can be used to replace parts in the DIP package area (TLP781, TLP785, etc.).

Moreover, this product can ensure that the internal insulation thickness is millimeters, and it belongs to the type of reinforced insulation, which meets foreign safety standards.

Because these products meet internationally certified safety standards such as UL, CUL, VDE, and BSI, they are ideal for electronic applications such as AC adapters, switching power supplies, and FA devices.

If there is anything you don't understand, you can call**Toshiba toshiba official original factory** Baodi Zenghao**** Beijing Office (010) 5158 1359 for consultation, or send an email to ask for relevant technical information. Hope it helps! o(∩_o~

It depends on what requirements you have for the indicators, there are rarely two models of devices that are exactly the same or all the indicators of one model surpass the other model, generally some indicators of a certain model are better, and other indicators of the other model are stronger.

Two tablets of TLP521-1 can directly replace one piece of TLP521-2, and two tablets of TLP521-2 can directly replace one piece of TLP521-4. As for whether TLP181 can be replaced,

Two tablets of TLP521-1 can directly replace one piece of TLP521-2, and two tablets of TLP521-2 can directly replace one piece of TLP521-4. As for whether TLP181 can be replaced, it depends on what requirements you have for the indicators, there are rarely two models of devices whose indicators are exactly the same or all the indicators of one model comprehensively surpass the other model, generally some indicators of a certain model are better, and other indicators of the other model are stronger.

The former is replaced by TLP785 and the latter by TLP185.

TLP521 and TLP181 are discontinued products, TLP521 can be replaced with TLP781 and TLP785, TLP781 is also a product that will be discontinued. TLP181 can replace TLP183 with TLP185 and TLP183 for better performance, and the operating temperature can reach 125 degrees. If necessary, you can send me a private message, Toshiba's strategy**.

Although both are Toshiba's optocouplers, their properties and applications are completely different. The former is a Darlington output optocoupler and the latter is a transistor output optocoupler. In practice, they cannot be mixed, and there is a difference in the size of the two packages.

Sometimes the pre-stage and post-stage of the circuit need to be separated (especially the high-frequency circuit) to prevent the signal of the pre-stage circuit from interfering with the accuracy of the signal of the post-stage circuit, so the signal of the output slippery date is turned into an optical signal on the left, and then restored to an electrical signal on the right, so as to realize the transmission of the signal and the isolation of the inspection circuit.

The parameters are basically similar, and the package of TLP181 is smaller than that of TLP421, and the withstand voltage is a little higher. For specific differences, please refer to the datasheet of the two optocouplers.

There should be a corresponding patch for the optocoupler, support domestic production, choose Everlight's optocoupler, a full range of patches, and the service is also better.

Why use an in-line optocoupler? First of all, Toshiba TLP181 optocoupler has its own replacement model, TLP185, which can be replaced directly without any changes. Of course, the in-line optocoupler TLP785 can also replace P181, but the in-line package is generally larger than that of 181.

It may be difficult to weld without changing the board.

50mA is the limit parameter, generally about 5mA is fine! In addition, when the current is high, the output rising edge time is shorter. If the speed is sufficient, 5mA is sufficient!