Name: Generic SRD-05VDC-SL-C 5V Relay Switch | PCB Mount | High Current Switching | SPDT
Brand: Generic
SKU: OL-GEN-5VRSPCM
Price: 45.00 INR
Availability: InStock

Robust Switching Power

Effortlessly manage high voltage and current loads with reliable electromechanical isolation capability.

Seamless PCB Integration

Designed for compact, stable mounting, ensuring professional-grade integration into your circuits.

Versatile Control Logic

Utilize SPDT contacts for flexible circuit configurations, adapting to diverse project requirements easily.

The Engineering Behind the SRD-05VDC-SL-C Relay

The SRD-05VDC-SL-C is a widely adopted 5V single-pole, double-throw (SPDT) electromechanical relay, fundamental for safely isolating control circuits from high-power loads. It operates on the principle of electromagnetism: a 5V DC coil energizes, creating a magnetic field that physically moves a metallic armature. This action closes or opens contacts, directing current flow to a connected load. This robust mechanism allows microcontrollers and low-voltage control signals to manage significantly higher current and voltage systems, preventing damage to sensitive electronics.

Engineered for compact PCB integration, this relay boasts a durable plastic housing designed to withstand typical operational environments. Its sealed construction helps protect internal components from dust and minor contaminants, extending its lifespan. The standardized pinout ensures straightforward integration into custom circuit boards, making it a staple for prototyping, industrial control, and hobbyist projects requiring reliable switching capabilities.

High Current Switching Capability

The primary advantage of the SRD-05VDC-SL-C is its ability to switch substantial electrical loads, typically rated up to 10A at 250VAC or 30VDC. This high current capacity allows it to control motors, solenoids, lights, and other power-hungry devices directly from a low-power microcontroller output without the need for complex power transistors. It provides a clean, resistive switching path, minimizing power loss and enhancing system efficiency.

Versatile SPDT Contact Configuration

Featuring a Single-Pole, Double-Throw (SPDT) contact arrangement, this relay offers extreme flexibility in circuit design. It includes a Common (COM) terminal, a Normally Open (NO) terminal, and a Normally Closed (NC) terminal. This configuration enables designers to switch a single input to either of two outputs, facilitating both ‘make’ and ‘break’ operations or creating changeover switching logic, crucial for complex control sequences and safety interlocks.

Optimized for Performance & Integration

Coil Voltage: 5V DC
Contact Rating (Max): 10A @ 250VAC / 30VDC
Contact Form: SPDT (1 Form C)
Operating Time: Max 10ms
Release Time: Max 5ms
Electrical Life: 100,000 Operations at Rated Load
Insulation Resistance: 100MΩ (500VDC)
Mounting: PCB Through-Hole

Features & Benefits

5V Coil Voltage: Direct compatibility with common microcontrollers like Arduino and Raspberry Pi GPIOs.
10A Contact Rating: Safely controls high-power AC/DC loads up to 250V AC or 30V DC.
SPDT (Normally Open/Closed): Provides flexible switching configurations for diverse circuit designs.
PCB Mount Design: Ensures secure, permanent integration into custom circuit boards.
Electromechanical Isolation: Protects sensitive control electronics from high voltage/current circuits.
High Durability: Offers extended operational life with 100,000 electrical operations at rated load.

Pro-Grade Advantages

High current handling for power applications.
Excellent electrical isolation between control and load.
Standardized compact form factor for PCB integration.
Reliable and well-understood electromechanical operation.

Technical Considerations

Slower switching speed compared to solid-state relays.
Audible click during operation may not suit all applications.

What is the primary function of a 5V PCB mount relay?

It acts as an electrically operated switch, allowing a low-power 5V control signal to switch a much higher voltage or current load in a circuit.

What does SPDT mean in the context of this relay?

SPDT stands for Single-Pole, Double-Throw, indicating it has one common contact that can connect to either a Normally Open (NO) or a Normally Closed (NC) contact.

Can this relay be used with Arduino or Raspberry Pi?

Yes, its 5V coil voltage makes it directly compatible with the 5V digital output pins of most Arduino boards and can be driven via a transistor from Raspberry Pi’s 3.3V GPIO.

What are the typical current and voltage ratings for the contacts?

A common rating for this type of relay is 10A at 250VAC or 30VDC, suitable for a wide range of resistive and inductive loads.

What is the difference between Normally Open (NO) and Normally Closed (NC) contacts?

Normally Open (NO) contacts are open (no connection) when the coil is de-energized and close when energized. Normally Closed (NC) contacts are closed (connected) when de-energized and open when energized.

Is this relay suitable for switching AC or DC loads?

This relay is designed to switch both AC and DC loads, up to its specified voltage and current ratings, offering versatility for various applications.

Specification	Value
Coil Voltage	5V DC
Contact Form	1 Form C (SPDT)
Contact Material	AgSnO2
Max Switching Current	10A
Max Switching Voltage	250VAC / 30VDC
Coil Resistance	~70Ω
Pick-up Voltage	≤75% Rated Coil Voltage
Drop-out Voltage	≥10% Rated Coil Voltage
Electrical Life	100,000 Operations
Mechanical Life	10,000,000 Operations
Operating Temperature	-25°C to +70°C

Additional information

Brand	Generic
Technology	Electromechanical Relay
Operating Voltage	5V DC (Coil)
Max Current	10A (Contact)
Control Voltage	5V DC
Load Capacity	250V AC / 30V DC
Channels	1 (SPDT)
Package	PCB Mount