The mu-metal packaged Series 109 and 109RF and the plastic packaged Series 109P and Series 109PH, are magnetically screened single-in-line reed relays that stack on 0.15 inches x 0.6 inches pitch. The adjacent column gives further details of the device types available.
These relays require little more than half the board area of themore usual 0.2 x 0.8 inch devices, this allows around 80 percent more relays onto your board.
These are the ideal choice for high density applications such as A.T.E. switching matrices or where very little board area is available.