Ecumaster forum

where and how is the best neatest and most reliable way to install flyback diodes?

Hi
Best is nearest to ECU.

Grts
Patrick

why is best nearest to the ecu and not nearest to the part?

Doesn't matter

Protection device should always be installed as close as possible to device to protect. In this case transistor.
Simple electronics rule.

Grts
Patrick

In this case it doesn't matter. The diode is not to protect the transistor. The transistor is protected against flyback. It is used to lower power dissipation of the transistor.

Jadzwin wrote:In this case it doesn't matter. The diode is not to protect the transistor. The transistor is protected against flyback. It is used to lower power dissipation of the transistor.

Ah , ok. My mistake.

I was more interested in other people's actual hard wiring techniques, a diod has a solid wire so any place it is installed amongst other soft stranded wiring, soldered or crimped, ecu or component end it will always be prone to the wire getting bent too much and breaking.

I usually install inside a boot for given component but using semi-rigid boots (ATUM) or rayhem mil spec..

i prefer to mount diode as close to coil as posible, its because noise emiting from wires when diode is in action could cause disturbance in other paralel wires, which is allways case of engine loom

acording to the base rules of electronic... you can use rule which you like more... i prefer this one: "get rid of disturbance in place of occurence"