# Logic level converter module, 5V IN, 3V3 OUT, Common Cathode, PNP

> 4-channel logic level converter module for adapting 5V signals to 3.3V, featuring optical isolation, common cathode PNP scheme and screw terminal connection. Stable switching up to 10kHz. Requires 3.3VDC supply on VCC and GND pins. Compatible with Arduino and other 3.3V development boards.

- Page: https://sigmanortec.ro/en/logic-level-converter-module-5v-in-3v3-out-common-cathode-pnp
- Price: 30.19 RON
- Availability: In stock; 1-2 zile
- Reference: 9526 · EAN: 5941128083412
- Category: Mechatronics and IoT > Adapters and Converters > Interface and Logic Level Converters
- Specifications: Input Voltage: 5 V; Output Voltage: 3.3 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.032 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 04:49 (Europe/Bucharest)

## Description

4-channel logic level converter, ideal for adapting 5V to 3.3V signals between Arduino and 3.3V. Offers optical isolation for increased protection and compatibility, quick screw terminal connection, PNP common cathode scheme and stable switching up to 10kHz, 3.3V power supply on VCC and GND.
Logic level converter module, from 5VDC to 3.3VDC, with optoisolator, compatible with Arduino and other development boards, with common cathode, PNP.
It has 4 channels and is used when you want to convert a logical signal from 5V to 3.3VDC.
It requires a power supply for the output voltage, in the case of this module, of 3.3VDC connected to the VCC and GND pins (they are easily recognized because they have the Blue connector.
For each separate input, the Plus and Minus of the 5V signal will be connected, and on the output there will be only the output pin of the signal modified to 3.3V.
A High Level signal of 5V on the input corresponds to a signal of 3.3V on the output. A Low Level signal of 0V on the input corresponds to a signal of 0V on the output.
Specifications:
Supply voltage: 3.3VDC
Input logic voltage: 5VDC
Output logic voltage: 3.3VDC
Input signal connection: Common Cathode, PNP
Switching limit frequency: 10KHz
Coupling mode: Optical isolation
Connection method: Screw terminal
Connection mode: