Bill of Materials - Digi-Key Order Form

MegaSquirt Relay Board

This is the MegaSquirt Relay Board ordering form for Digi-Key. Thanks to Caleb Johnson for corrections on parts. It will allow you to assemble the MegaSquirt® Relay Board with just a printed circuit board (PCB) and case. Note that some additional parts will be required, as noted near the bottom of the form.

Change any quantities to the numbers you want, and click the button to send your order to Digi-Key. If the default quantities are used, the price for the 'Relay Board parts' should be $44.64, as of August 2005.

Quantities are as required for MegaSquirt Relay Board.

To order complete the following steps:

  1. Verify that you have the quantities you want for each item below.

  2. Then send your order to Digi-Key:

    You will be redirected to Digi-Key to confirm your order items and quantities. (Go to Ordering Homepage and "CREATE NEW ORDER" if you want to start over with an order after you have submitted it.)

  3. Finalize your order by clicking on the 'finish order' button on the Digi-Key site. Verify your order, payment method, and shipping details. The order will not be complete until you have finished this step.

Digi-Key P/N
per kit
Relay socket 1.51 4.53
Relays 5.20 15.60
ATO fuse holder 1.70 6.80
Raychem Polyfuse 0.55 1.65
20 terminal block 3.91 7.82
4 terminal block 1.57 1.57
DB37 Male PCB header 4.38 4.38
DB37 Connector Female 2.29 2.29
Shipping and processing may be extra, depending on your location and order size $44.64
Here are the other parts you'll need to build your Relay Board: Some MegaSquirt® Related Links:
Printed Circuit Board (PCB) - group buy

LMB-Heeger case - EAS-200 - you can purchase the case from HdB Electronics (650-368-1388) in single unit quantities.

MegaSquirt Site

MegaSquirt Forums

MegaSquirt FAQ


Click here to go back to the MegaSquirt® FAQ

MegaSquirt® and MicroSquirt® controllers are experimental devices intended for educational purposes.
MegaSquirt® and MicroSquirt® controllers are not for sale or use on pollution controlled vehicles. Check the laws that apply in your locality to determine if using a MegaSquirt® or MicroSquirt® controller is legal for your application.
©2004, 2005 Bruce Bowling and Al Grippo. All rights reserved. MegaSquirt® and MicroSquirt® are registered trademarks. This document is solely for the support of MegaSquirt® boards from Bowling and Grippo.