Behavioural mixed-signal modelSRD-05VDC-SL-Crelay_5v
Relay 5 V (SRD-05VDC-SL-C)
Relay with 5 V coil (70 Ω, 0.12 H): picks up at 75 % of rated current after 10 ms, drops out below 10 % after 5 ms; changeover contact COM–NO / COM–NC. The coil is inductive: without a flyback diode, switching off causes a high voltage spike at the driver transistor.
Key data
- Category
- Passive
- Simulation model
- Behavioural mixed-signal model
- Manufacturer part number
- SRD-05VDC-SL-C
- Reference prefix
- K
- Pins
- 5
- Land pattern
- Relay_SPDT_SANYOU_SRD_Series_Form_C
Simulation model
A behavioural model implements the interface of the chip (registers, protocol, timing) at its pins. The pins are connected to the analog circuit like CMOS pins.
- Model
- relay
- Supply pins
- A1 / A2
Pins 5
| Pin | Name | Use |
|---|---|---|
| A1 | A1Passive pin | Coil +: 5 V supply side |
| A2 | A2Passive pin | Coil −: to a transistor switch; flyback diode across the coil |
| COM | COMPassive pin | Switch common contact |
| NO | NOPassive pin | Normally open: closed while the coil is energized |
| NC | NCPassive pin | Normally closed: open while the coil is energized |
Parameters 1
Coil voltage
coilDefault5 V
PCB
Verified land pattern
Relay_SPDT_SANYOU_SRD_Series_Form_Crelay Sanyou SRD series (SRD-05VDC-SL-C)