ET-P06
Reverse-Polarity & Surge Protector
P-MOSFET reverse protection with 24 V TVS, 3 A
AED 14.00
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Overview
P-MOSFET reverse protection with 24 V TVS, 3 A
The ET-P06 is built around the Reverse-battery blocking with ~50mΩ loss instead of a 0.4V diode; TVS clamps surges on the output side.
Designed in Dubai by ElectroTrical — the full schematic, BOM and design notes are published below.
Good for
- Protecting robots from swapped batteries
- Field-wired 12/24 V equipment
- Bench supplies and kits
Key features
What makes it different
Function
Reverse-battery blocking with ~50mΩ loss instead of a 0.4V diode; TVS clamps surges on the output side
Input
3.5–24V (FET fully on above ~4.5V; at 3.5V use ≤1A)
Current
3A continuous (AO3401A 4A, 47–60mΩ)
Open documentation
Schematic, BOM and layout notes published for every board.
Breadboard friendly
Standard 2.54 mm pitch and M2.5 mounting holes.
Specifications
Technical specifications
| Function | Reverse-battery blocking with ~50mΩ loss instead of a 0.4V diode; TVS clamps surges on the output side |
|---|---|
| Input | 3.5–24V (FET fully on above ~4.5V; at 3.5V use ≤1A) |
| Current | 3A continuous (AO3401A 4A, 47–60mΩ) |
| Size | 25.4 × 17.8 mm |
|---|---|
| Mounting | 4 × M2.5 holes, 2.54 mm from each corner |
| Connectors | 2-pin 2.54 mm header · Screw terminal 2P 5.0mm 17A (THT) — Input · Screw terminal 2P 5.0mm 17A (THT) — Protected output |
| Revision | Rev A |
Performance
Voltage lost compared
Pinout
Pin map and connections
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VOUT | Power | Protected output |
| 2 | GND | Ground | Ground |
Mechanical
Dimensions and what's in the box
In the box
- 1 × ET-P06 Reverse-Polarity & Surge Protector (assembled)
- 1 × 2-pin 2.54 mm male header, unsoldered
Getting started
- Wire the header: VOUT, GND
Compare
Which regulator?
| Reverse-Polarity & Surge Protector (this board)This board | ET-P03 TPS63802 Buck-Boost 3.3 V | ET-P04 TPS563201 5 V 3 A Step-Down | ET-P05 TPS61023 5 V Boost | |
|---|---|---|---|---|
| What it does | P-MOSFET reverse protection with 24 V TVS, 3 A | 3.3 V 2 A from 1.8–5.5 V input | 6.5–17 V in, 5 V 3 A out | 5 V 1 A from a single LiPo cell |
| Interface | 3.5–24V (FET fully on above ~4.5V; at 3.5V use… | 1.8V start, runs to 1.3V; 1S LiPo, 2–3× AA/NiMH,… | 6.5–17V (12V adapters, 3S/4S LiPo up to 16.8V) | 1S LiPo / 2-3 AA; starts at 1.8V |
| Best for | Protecting robots from swapped batteries | Flat 3.3 V from a LiPo | 12 V to 5 V for Raspberry Pi | 5 V from a LiPo for NeoPixels |
| Price | 14 AED | 39 AED | 29 AED | 15 AED |
Downloads
Documents and design files
PDFET-P06 schematicRev A
STEP3D modelComing soon
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