Hi there, I'm trying to build a soft-starter circuit with 2N2222 transistor. But I'm struggling to get a fix on the R1, R2 and C1 values. Now the relay engages as soon as the power up (I see no delay). I'm trying to come up with 300~500milliseconds delay from power-up to relay engaging. [image…

For 5 V, an IRLZ44. Transistor (BJT) circuit will not work.

Drive 5v relay with 2N2222

dinesha77 September 26, 2021, 6:11pm 6

This I tried and worked. But unfortunately I do not want to use a 12v relay as I do not have any and I have plenty of 5v relays. It is impossible to buy a 12v relay nowadays where I live.

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Drive 5v relay with 2N2222

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