Extreme electronics gurus... PCB relay dilemma...

[RobRR]

Ok, need to replace a few relays on a PCB. Its a Potter & Brumfield/Tyco relay, part number t90S1D42-15. Its a 30 amp DC 15v coil type. NOONE has the 15v coil one in stock. They have 12, 18, 22, 24... but of course no 15v ones. I need this relay because its physically a specific size.

Here is the datasheet for the t90 series relays: http://relays.tycoelectronics.com/da...ts/T90N_DS.pdf

My question is, would I be able to use a different voltage coil without and adverse side effects? Ill admit, while I can build anything PCB related under the sun, Im not that good with voltages and whatnot. Would 15v be enough to pop an 81v coil?

Thanks in advance!

[Twisteramps]

Is this on a car?

[RobRR]

No, its a PCB controller board for a Jacuzzi actually.

[DARYLV]

Use the 12. I routinely use them at over 14 volts. Another volt isn't gonna make a difference. On the 18, the coil may or may not actuate.