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Small black rectangular relay with multiple through-hole pins on a light background

Panasonic

Panasonic 4A 12VDC 4PST Relay S2EB-L2-12V

SKU CH-FYV1-68PXN

Through-hole 4PST relay switches 4 A at 250 VAC or 48 VDC with a 12 VDC dual-coil latching design

  • Dual-coil latching holds state without continuous power
  • 4-pole double-throw switches two circuits simultaneously
  • 4 A at 250 VAC handles moderate AC loads
  • Sealed construction resists dust and moisture ingress
  • Low 16.7 mA coil current reduces drive requirements

Panasonic 12 V Latching Relay

This Panasonic S-series relay switches up to 4 A at 250 VAC or 48 VDC. It uses a through-hole PC-pin mount and a sealed enclosure. The dual-coil latching design holds position without continuous coil power. It operates from -55 °C to 65 °C.

12 VDC Coil With 720 Ω Resistance

The coil draws 16.7 mA at 12 V and requires at least 8.4 V to operate. Operate and release times are both 15 ms. Silver-alloy contacts are cadmium-free and rated for 4 A switching current.

For Low-Power PCB Switching Circuits

Suits designers needing a compact, sealed latching relay for signal or light-load power routing on a printed circuit board. Not for buyers who need higher contact current, surface-mount terminals or a non-latching coil.

Highlights

  • Dual-coil latching holds state without continuous power
  • 4-pole double-throw switches two circuits simultaneously
  • 4 A at 250 VAC handles moderate AC loads
  • Sealed construction resists dust and moisture ingress
  • Low 16.7 mA coil current reduces drive requirements

Specifications

BrandPanasonic

Questions about this item

What does the 4 A contact rating mean when the relay is installed in a circuit?

It means each contact set can carry up to 4 A continuously without overheating, so the load on any pole must stay at or below that value.

The coil is rated at 12 VDC with a must-operate voltage of 8.4 VDC — what does that tell me about the drive circuit?

The relay will reliably pull in once the coil sees at least 8.4 VDC, so a 12 V supply with normal tolerance gives reliable operation.

The mounting type is through hole with PC pin termination — what board layout does that require?

You need plated through-holes spaced to the relay's pin pitch; the pins are soldered on the opposite side of the board.

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