HFV15/12-Z1ST-R(257) SPECIFICATIONS
| Product Attribute | Attribute Value |
|---|---|
| Manufacturer | HongFa, Inc. |
| Product Category | Automotive Relay |
| Coil Voltage | 12 VDC |
| Max Amperage | 40A |
| Contact Form | SPDT (1 Form C) |
| Vibration Resistance | 5Hz - 22.3Hz 10mm DA |
| Shock Resistance | 294m/s² |
| Construction | Plastic Sealed, Dust Protected |
How to Choose a Replacement Automotive Relay
Having trouble finding a replacement for an automotive relay? Follow the steps below when choosing a drop-in replacement.
- Determine the voltage. In the case of automotive relays, the voltage is typically 12V, 24V, or higher.
- Determine the relay layout. Common automotive relay layouts are SPST (Single Pole Single Throw), which is designated with 4 pins, or SPDT (Single Pole Double Throw), which is 5 pins.
- Determine the footprint. Commonly used footprints for plug-in automotive relays are ISO Ultra Micro, ISO Micro 280, ISO Micro, ISO Mini, or ISO Maxi. Automotive applications also use PCB layouts. See the image below for layout diagrams.
- Determine the continuous rating; for reference, automotive relays are generally between 20A and 75A.
- Specify mounting options: bracket or no bracket.
- Finally, determine the suppression. Suppression options are a resistor, a diode, or no suppression.
Keep in mind when cross-referencing relays, it is important to match the coil voltage, match or exceed the current rating, and select the same suppression type. After identifying these important specifications, you are ready to find a suitable replacement automotive relay.