4PST-NO PCB Mount Latching Relay 3 A, 12V dc

  • RS Stock No. 173-8152
  • Mfr. Part No. S4-L2-DC12V
  • Manufacturer Panasonic
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): DE
Product Details

Panasonic S Series Latching Relays

A latching relay is similar in design and function to a standard general-purpose relay. However, there is one main difference with a latching relay, in that the latching relay will remain in the last position of which it was powered. A non-latching relay will revert to its normal position.

From Panasonic, the S Series of high sensitivity, latching relays are designed for PCB mounting. Extremely reliable and efficient the S series range of PCB mount relays is resistant to vibration and shock, making them ideal for a wide range of industrial switch applications. Compact, with a low profile the S series of power relays, are typically used in designs and applications where PCB space saving is a priority.

Manufactured from high-quality materials the Panasonic S Series of latching relays have a long life and can be relied upon for all your design maintenance and repair needs.

Features and Benefits

  • Robust and reliable

  • Compact, with a low profile

  • Lightweight, only 8g

  • Excellent resistance to vibration and shock

  • DIL terminals array to fit a 2.54mm grid

  • Low EMF (approximately 0.3μV)

  • DPCO / DPDT (changeover) and 4PNO contact arrangements

  • 4 amp current rating @ 250V AC 3 amp current rating @ 30 VDC

  • 12V dc and 24V dc coil voltages

  • Gold clad silver alloy contacts

  • Wide temperature range - 55˚ C to +65 ˚ C

  • Dimensions, H 10mm x W 28mm x D 12mm


Latching relays are used in a wide range of switching applications across many different types of environments and sectors. Some of the more common control circuits are

  • Telecommunication equipment

  • Data processing equipment

  • Alarms and security

  • Measuring equipment

  • Electronics designs


If required a PCB mount socket is available enabling the latching relay to be mounted directly onto a PCB. See stock number 127-9342


UL and CSA

Attribute Value
Coil Voltage 12 V dc
Contact Configuration 4PST-NO
Switching Current 3 A
Mounting Type PCB Mount
Maximum Switching Voltage AC 250V ac
Maximum Switching Voltage DC 30V dc
Maximum Switching Power DC 90 W
Length 28mm
Depth 12mm
Height 10.4mm
Dimensions 28 x 10.4 x 12mm
Terminal Type Through Hole
Life 100000000 cycles
Maximum Switching Power AC 1 kVA
Contact Material Gold Plated
Isolation Coil To Contact 1.5kV rms
Maximum Operating Temperature +65°C
Minimum Operating Temperature -40°C
Coil Power 200mW
Operating Temperature Range -40 → +65°C
Coil Resistance 720 <ohm/>
On back order for despatch 06/08/2020, delivery within 5 working days from despatch date.
Price (ex. GST) Each (In a Box of 50)
$ 28.696
(exc. GST)
$ 33.00
(inc. GST)
Per unit
Per Box*
50 +
*price indicative
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