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The Best 3.3V Solid State Relay of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best 3.3V Solid State Relay of 2023. Check our ranking below.

2,492 Reviews Scanned

Rank No. #1

(10pcs)12V 5V 3v 3.3V Solid State Relay 1a,dc SSR,Input:3-32Vdc,Output:5-60Vdc,41Fdd,Non-Contact,Mini,Slim Ac dc-dc,Micro for ESP32 Raspberry Pi Arduino ebike

Input:3-32Vdc,Output:5-60Vdc
Without a heatsink installed, the maximum current is 1A.
Long lifespan: uses optocoupler isolation and is contactless, so there's no mechanical lifespan limit.
Fast response,high trigger,no noise.
Commonly used for development boards like ESP32 and Raspberry Pi.

SaleRank No. #2

Teyleten Robot DC 1 Channel Optocoupler 3V/3.3V Relay High Level Driver Module Isolated Drive Control Board 3V/3.3V Relay Module for Arduino (Pack of 5)

Original Songle Relay
30VDC 250VAC Load：The power switch is compatible with 10A 250VAC and 10A 30VDC load.
Optocoupler Isolator:3V/3.3V power relay module supports photocoupler isolation control.

Rank No. #3

Acxico 1Pcs 3-32V DC 1-Channel SSR Solid State Relay High-Low Trigger 5A 5V 12V for Arduino

Using FR-4 double-sided circuit boards;
Using high-quality solid-state relays 5A;
The input and output are using KF128-3.81 Terminal Block, wiring more convenient;
Package Included:1Pcs 3-32V DC 1-Channel SSR Solid State Relay High-Low Trigger 5A 5V 12V For Arduino(If there are any problems with the product, please send us pictures.Tell us more details about this problem.)
Thank you so much for your purchasing from our store.Any question ,please feel free to contact us.

Rank No. #4

LClCTC (10pcs) Solid State Relay DD 3.3V 3V 5V 12V 24V 1.5A,Signal Relay for PLC,No Contact DC to DC;Input:3-32VDC;Output:5-60VDC;Din Rail

input:3-32VDC;Output:5-60VDC
No contacts: no mechanical life, the service life is much longer than traditional relays
Since there is no heat sink, please do not exceed 1.5A
Guide rail base: convenient, detachable, can be used with 1.37in (35mm) guide rail

Rank No. #5

Kyoto Electric KF0602D DC-to-DC Solid State Relay, 32 Volt, DC Input, 2 Amp, 4-Pin, 1.4"L x 0.3"W x 0.9"H

Control voltage: 3-32VDC
Contact form: SPST
Size: 1.4"L x 0.3"W x 0.9"H
Terminal type: Solder lead

Last update on 2025-07-05 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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FAQ:

Q: What kind of DC input does solid state relay use?

A: Also, because there’s no moving contacts, solid state relays can be switched much faster and for much longer periods without wearing out. This particular SSR can switch current loads of up to 40A with a 3-32V DC input and a zero cross trigger control method.

Q: What kind of power do I need for a 3.3V relay?

A: Usually, you’re ging to power the 3.3V device from something like 5V USB or 9V plug. These sources can often provide the power required to energize the coil of your relay. You will have to make the control signal of your board and switch the “input power” over the coil of your relay.

Q: Can a relay be switched from a microcontroller?

A: Relay modules with opto couplers can drive the relay from a different voltage to the logic input, which is sometimes useful. The system is a physical switch that just short two wires (which are 24v max). This system should now also be able to be switched from the microcontroller.

Q: What kind of DC input does a SSR 40A use?

A: This particular SSR can switch current loads of up to 40A with a 3-32V DC input and a zero cross trigger control method. Each one of these relays is equipped with four screw terminals (for use with ring or fork connectors) and a plastic cover that slides over the top of the relay to protect the terminals.

3.3V Solid State Relay