Weasch PCB Power Relay JQC-3F(T73)
Product description
A basic board-level relay suits projects that need a defined switching component, while a complete control module is a better fit when you want additional circuitry included. This Weasch PCB power relay is a more focused component choice.
Its DC 12V coil and SPDT contact arrangement give you specific electrical details to match against a project before buying. The listing includes 10 relays.
The main limitation is that these details do not establish whether the relay fits a particular board or circuit. Check your design requirements before choosing it.
Key specifications
This is an electromagnetic power relay for PCB use, model JQC-3F(T73). Its coil is rated for DC 12V, and it has five pins with an SPDT contact type. The listed contact capacity is 7A at 240VAC or 10A at 125VAC/28VDC. Those ratings are tied to the stated voltages, so treat them as separate operating conditions rather than one interchangeable rating.
The coil voltage is a key match point: a project designed around a different coil voltage needs a different relay. Pin count and contact arrangement matter, too. The product information does not give dimensions or a board footprint, so the five-pin description alone is not enough to confirm a physical fit. On the spec sheet, the electrical ratings are clear, other fit details are not provided.
Who it’s for
This pack is aimed at people assembling or repairing PCB-based switching projects who already know the coil voltage and contact requirements they need. For example, if you are laying out a board and need an SPDT relay with a DC 12V coil, these listed specs give you concrete points to compare with your circuit design.
A solid pick if you want multiple individual relays rather than a module with surrounding control electronics. Not the best choice if you need a ready-to-use switching board, a different coil voltage, or confirmed dimensions and pin spacing before purchase. The listing does not state those physical measurements.
What you get
The package contents are listed as 10 PCB power relays. That makes the set relevant for a project that uses several relays or needs spares, rather than a buyer looking for a single component. There is no additional board, socket, wiring, or installation hardware specified, so plan on sourcing any other parts your build requires.
Before you decide
What coil voltage does this relay use? The listed coil voltage is DC 12V. Match that to the voltage available in your circuit.
What contact ratings are listed? The product information gives 7A at 240VAC and 10A at 125VAC/28VDC. Use the rating that matches the voltage in your application.
How many relays are included? The contents are listed as 10 PCB power relays. The product details do not list extra accessories.
Buying verdict
Choose this set when your design calls for a PCB power relay with a DC 12V coil, SPDT contacts, and the stated contact ratings, and you want 10 units. A more complete module makes more sense if you need control circuitry included, a different relay is the safer route if your project requires another coil voltage or you cannot confirm the five-pin relay’s physical fit. The specifications support a focused component purchase, but they do not answer every board-level compatibility question.