# Diode Module Sense, Anti-Reverse, 75V, 12A

> Diode module with anti-reverse protection, 75V, 12A (ref. 9792), for solar systems between an MPPT controller and battery, preventing reverse charging and backflow current. Input voltage 9-75V DC, internal resistance 4 mOhm, peak current 20A, continuous current under 12A, operating temperature -20 to 100 degrees C. No reverse-polarity protection. PCB labels: VIN+, OUT+, GND.

- Page: https://sigmanortec.ro/en/diode-module-sense-anti-reverse-75v-12a
- Price: 69.03 RON
- Availability: In stock; 1-2 zile
- Reference: 9792 · EAN: 5945809300621
- Category: Electronic components > Protection Module
- Specifications: Nominal Current: 12 A; Maximum Input Voltage: 75; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.003 kg
- Updated: 2026-09-12
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 02:22 (Europe/Bucharest)

## Description

It ensures one-way current flow between the MPPT controller and the battery, preventing reverse charging and backflow current in solar systems. It operates at 9-75V, supports 12A continuous and 20A peak, has a very low internal resistance of 4 mOhm for low losses and heating, minimal stand-by consumption and a compact format for easy integration.
The 75V, 12A diode module, ideal for solar panel and battery systems, which prevents reverse charging and reverse current. This module has an internal starting resistance of only 4 milliohms and an operating temperature between -20 and 100 degrees Celsius. It is able to withstand a peak current of up to 20A and a continuous working current of up to 12A, which makes it suitable for a wide range of applications, especially solar systems coupled with battery charging.
This module is indicated to be positioned between the charge controller (MPPT) and the battery, ensuring the direction of current flow only in one direction, from the MPPT to the Battery, blocking the flow in the opposite direction, from the Battery to the MPPT.
The dimensions and low power consumption in stand-by make this module a simple and efficient solution for replacing ordinary diodes, reducing heat and increasing efficiency.
The module can be used as isolation between the power source and the inductive load.
The module does not have a protection function for reverse polarity connection. Do not reverse the positive and negative poles.
In conditions of high ambient temperature and poor ventilation, it is recommended to reduce the output current.
Specifications:
Input voltage: 9-75V
Type: Anti-reverse, anti-backflow, anti-reverse irrigation diode
Internal starting resistance: 4 mOhm
Operating temperature: -20 to 100 degrees Celsius
Peak current: 20A
Polarity protection: NO
Standby current: 0.7mA at 24V
Continuous working current: below 12A
Voltage drop: 0.03V at 2A, 0.05V at 5A, 0.06V at 8A, 0.07V at 10A, 0.09V at 12A
Dimensions: 23 x 14 x 2.6mm
Use:
The module is simple, being provided with a sense diode on the Positive (+) pole. VIN+, OUT+ and two GNDs are marked on the PCB. This module is inserted between the source that charges the battery and the battery.
VIN+: Connects to the plus output from the solar panel, MPPT module or the source responsible for charging the battery.
GND: The GND next to the input is connected to the minus of the output from the solar panel, the MPPT module or the source responsible for charging the battery.
OUT+: Connects to the Plus (+) terminal of the battery.
GND: The GND next to the output is connected to the Minus (-) terminal of the battery.