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

ruilviana September 26, 2021, 5:42pm 2

Hi @dinesha77
Are you operating a 5V relay with 12V power?

RV mineirin.

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