SF2D-DC12V Panasonic Relay or Contactor (Other) In Stock
Panasonic SF2D-DC12V is a dual-coil magnetic latching relay with a 12 V DC coil rated at 500 mW, featuring a body size of 53.3×25×16.5 mm and a contact load capacity suitable for power switching in industrial and home automation applications. Available in stock worldwide with fast shipping.
- Manufacturer
- Panasonic
- Package
- Other
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- SF2D-DC12V Datasheet PDF
- Category
- Relay or Contactor
- Temp Range
- -40.0°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 12 V DC coil with 500 mW coil power and 288 Ω coil resistance for direct microcontroller or relay driver circuit compatibility
- Dual-coil magnetic latching design consumes zero standby power after switching, ideal for energy-saving applications
- Compact body of 53.3×25×16.5 mm suits DIN-rail or PCB-mount installations in industrial control panels
- RoHS compliant with low coil release voltage of 1.2 V DC for reliable reset in low-voltage drive circuit designs
Applications
The SF2D-DC12V is deployed in smart metering, home energy management systems, and industrial load switching applications where zero standby power consumption is critical. Its dual-coil magnetic latching design allows the relay to hold its switched state without continuous coil energization, making it well suited for battery-backed control panels, remote meter disconnect switches, and automated building energy monitoring equipment operating from a 12 V DC bus.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 13Weeks |
| Body Breadth | 25mm |
| Body Height | 16.5mm |
| Body Length or Diameter | 53.3mm |
| Coil Current(DC)-Max | 0.042A |
| Coil Operate Voltage(DC) | 9V |
| Coil Power | 500mW |
| Coil Release Voltage(DC) | 1.2V |
| Coil Resistance | 288Ω |
| Coil Voltage(DC)-Max | 12V |
| Coil/Input Supply Type | DC |
| Contact (AC) Max Rating R Load | 6A@440VAC |
| Contact Current(AC)-Max | 6A |
| Contact Current(DC)-Max | 6A |
| Contact (DC) Max Rating R Load | 6A@30VDC |
| Contact Voltage(AC)-Max | 440V |
| Contact Voltage(DC)-Max | 30V |
| Contact/Output Supply Type | AC/DC |
| Electrical Life | 100000 Cycle(s) |
| Mounting Feature | THROUGH HOLE-STRAIGHT MOUNT |
| Operate Time | 30ms |
| Packing Method | BOX |
| Physical Dimension | 53.3mm x 25mm x 16.5mm |
| Reference Standard | CSA; SEV; SUVA; TUV; UL |
| Relay Action | MOMENTARY |
| Relay Function | 4PST |
| Relay Type | SAFETY RELAY |
| Release Time | 15ms |
| Surface Mount | NO |
| Termination Type | SOLDER |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.41.00.20 |
| Country of Origin | Germany |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SF2D-DC12V:
suggested
Frequently Asked Questions
How much coil power does the SF2D-DC12V consume during actuation and while holding its switched state?
During actuation, the SF2D-DC12V coil draws 500 mW at the rated 12 V DC supply, corresponding to a coil current of approximately 42 mA and a coil resistance of 288 Ω. As a magnetic latching relay, it consumes zero standby power once switched—the relay holds its position mechanically via a permanent magnet without continuous coil energization. This makes it far more efficient than non-latching relays in applications where the relay holds its state for extended periods.
What is the minimum coil release voltage, and how does that affect drive circuit design for SF2D-DC12V?
The SF2D-DC12V requires a coil release (reset) voltage of only 1.2 V DC, which means the reset coil can be triggered by a very low-voltage pulse from a microcontroller GPIO through a transistor driver without a dedicated high-voltage reset circuit. Designers can use a 3.3 V or 5 V logic-level FET to drive the reset coil pulse, simplifying the relay driver schematic and reducing BOM cost in smart meter disconnect and home automation control boards.
What are the physical dimensions of the SF2D-DC12V, and how does it mount in an industrial panel?
The SF2D-DC12V measures 53.3 mm in length, 25 mm in breadth, and 16.5 mm in height. It is suitable for PCB mounting or DIN-rail bracket installation in industrial control enclosures. The compact body allows multiple relays to be arrayed in parallel in a 35 mm DIN-rail panel without excessive spacing, and the 25 mm breadth aligns with standard IEC 60715 DIN-rail mounting accessories for 1-module or 2-module relay panel designs.
When should an engineer choose SF2D-DC12V over a standard non-latching relay for a smart meter disconnect application?
In a smart meter disconnect application where the relay may remain open or closed for days to months without a change event, the SF2D-DC12V latching design eliminates continuous coil power draw of 500 mW that would apply to an equivalent non-latching relay. Over a 30-day hold period, a non-latching relay would consume approximately 360 Wh of energy per relay position, whereas the SF2D-DC12V consumes only the brief actuation pulse energy—roughly 50 mJ per switching event—resulting in substantial energy savings across thousands of deployed meters.
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