SRD-3VDC- 10A 250VAC 5PIN RELAY – KSH 70 at HIMASTORES Mombasa – best electronics in Kenya
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SRD-3VDC- 10A 250VAC 5PIN RELAY

SKU: HMJ596 Category: Relays
KSH 70.00
Out of Stock

Product Description

SRD3VDC 10A 250VAC 5Pin Power Relay

Ultra-Low Voltage SPDT Relay for 3V Systems

The SRD3VDC is a 10A power relay with 250VAC switching, featuring a 3VDC coil and 5pin SPDT configuration. This relay enables highpower control from ultralow-voltage logic circuits.

True 3V Operation - Directly works with 3.3V logic systems
High Power Handling - 10A at 250VAC for demanding loads
Requires stable 3VDC supply drawing 333mA coil current
Use MOSFET driver for optimal low-voltage switching
Never exceed 10A contact current rating

Technical Specifications

ParameterValue
Coil Voltage3VDC
Coil Resistance9Ω (±10%)
Coil Current333mA
Contact FormSPDT (5-pin)
Contact Rating (AC)10A at 250VAC
Contact Rating (DC)10A at 30VDC
Max Switching Power2500VA / 300W
Operate Time10ms max
Release Time5ms max
Mechanical Life10 million ops
Electrical Life100,000 ops at rated load

= Pin Configuration =

PinFunctionConnection
Pin 1Coil (+)3VDC positive supply
Pin 2Coil (-)3VDC ground return
Pin 3Common (COM)Load common terminal
Pin 4Normally OpenClosed when energized
Pin 5Normally ClosedClosed when de-energized

= Key Features =

UltraLow Voltage 3V coil for battery and 3.3V logic

High Current Contacts - 10A switching capability

Low Power Consumption - Only 1W coil power

Quick Response - 10ms operate time

Compact Package - Standard DIP form factor

= Applications =

  1. ESP32 and ESP8266 projects
  2. 3.3V FPGA control circuits
  3. Battery-powered IoT devices
  4. Wearable technology
  5. Portable medical equipment
  6. Low-power sensor networks
Ideal for 3.3V Systems - Direct ESP32 and STM32 compatibility
Special LowVoltage Design Engineered for reliable 3V pickup

√ Ready for 3.3V logic interfacing

√ Low-profile PCB mounting

√ UL recognized and TUV certified

Driver Requirements

Critical drive considerations:

  • Use logic-level MOSFET (AO3400 or IRLZ44N)
  • Provide 350mA minimum drive current
  • Keep traces short and thick for low resistance
  • Include low-ESR capacitor near coil
Use 1N5819 Schottky diode for faster flyback protection
Add 100µF capacitor to stabilize 3V supply during pickup
Use 2.5mm² minimum trace width for contact connections

Protection Guidelines

Voltage Drop - Minimize wiring resistance to 3V coil

Diode Protection Fastrecovery diode required

Contact Snubber - RC network for AC loads

Thermal Limits Operate 25°C to +70°C

3V coil requires robust power supply - voltage drops cause failure
Never use BJT driver - use MOSFET for low voltage drop
Maintain 2A minimum power supply capability for reliable pickup

Troubleshooting

Relay not picking up:

  • Measure voltage at coil under load
  • Check MOSFET gate drive voltage
  • Avoid using long, thin wires to coil

Intermittent operation:

  • Add bypass capacitor
  • Verify supply stability
  • Avoid sharing 3V rail with noise sources
Specially calibrated for 3V operation
Engineering support available

Ordering Options

Part NumberCoilContactPackaging
SRD-3VDC3V10ASingle Unit
SRD3VDC103V10A10-Pack
SRD3VDCT3V10ATube (20)

Specialty Item - Limited production run

Priority Shipping on all orders

Technical Documentation included

√ Factory tested at 2.7V minimum pickup

√ 1-Year warranty with proof of purchase

√ Full application notes provided

3.3VESP32Low Voltage
IoTBatterySpecial Order