Switching a relay with a 5V PWM circuit

Electrical Engineering Asked by SideSwipe PB on November 14, 2021

I have a coil that has the following specs:

Coil Resistance: 123 ohms
Coil Current: 97.5 mA
Switching Voltage: 14 VDC

I am trying to use a 5V PWM output from an ECU to switch the relay. I know I need to use a transistor but I am way over my head in regards to how to decide the part and design the ciruit.

pwm transistors

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