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Pololu Reverse Voltage Protector, 4-75V, 8A
Reverse Polarity Protection Module from Pololu It protects electronic devices from damage caused by incorrect power connections. The AP74502HQ controller and a MOSFET transistor with a resistance below 15 mΩ ensure very low voltage drop and high efficiency. The module supports voltages from 4 V to 75 V and continuous current up to 8 A. This version does not block reverse current flow, making it ideal for battery-powered systems and motor controllers.
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Product description: Reverse polarity protection module 4 - 75 V 8 A - Pololu 5358
The Pololu reverse polarity protection module is designed to protect electronic devices from the effects of accidental power supply polarity reversal . The system utilizes an AP74502HQ controller working with an N-channel MOSFET transistor , providing protection with very low conduction resistance— less than 15 mΩ . In practice, this means minimal power loss and a significantly lower voltage drop than with traditional protection diodes . The module operates with a voltage of 4 V to 75 V , and after startup, it can operate from as low as 3.2 V. The maximum continuous current is 8 A , and the system can conduct currents up to approximately 15 A for short periods. This version does not block reverse current flow , making it particularly recommended for motor controllers, battery-powered systems, and applications where energy can be returned to the power source, such as during regenerative braking. The board is equipped with holes for mounting popular 3.5mm and 5mm pitch screw connectors and 2.54mm goldpin connectors . The module's bottom also features a mounting location for an optional TVS diode in an SMB package, which increases the system's resistance to surges encountered in demanding industrial and automotive applications.
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Technical specifications of the module
- Controller: AP74502HQ
- Transistor: N-channel MOSFET
- Operating voltage: 4 V to 75 V
- Minimum voltage after start-up: 3.2 V
- Maximum absolute voltage: 80 V
- Negative voltage protection: up to -75 V
- Maximum continuous current: 8 A
- Maximum instantaneous current: approximately 15 A
- MOSFET forward resistance: less than 15 mΩ
- Reverse current blocking: no
- Compatible connectors: 2.54 mm goldpin strips, 3.5 mm and 5 mm screw connectors
- Dimensions: 12.7 x 7.6 x 2 mm
- Weight: 0.2 g
Contents of the set
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| Name | Value |
|---|---|
| Voltage to | 4.0 V |
| Voltage from | 75 V |
| Current | 8.0 A |
| Width | 11 cm |
| Height | 5 cm |
| Depth | 0.5 cm |
| Weight | 0.002 kg |
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30 days to return, without giving a reason
If the product does not meet your expectations, you have 30 days from receiving the parcel to withdraw from the contract. The product only has to be complete. The right of return belongs to consumers (a purchase unrelated to business activity).
Complaints
If the product turns out to be faulty, you can make a claim under the guarantee or the statutory warranty. We handle claims without delay, at the latest within 14 working days of receiving the report together with the goods.
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Instructions and documents
GPSR data
Product information
This product is a component intended for further assembly or prototyping. It is not a finished product within the meaning of the product safety regulations.
