Pickering

Pickering 68 series: 68-1-A-12 Relay Review

Pickering’s new series of reed relays have an impressive data-sheet. Distinguished by their impressive power rating in a tiny package, they enable highly reliable high-power relays to fit in a product of any size.

Pickering 120 Single-Pole Reed Relays – 20W at 4 mm x 4 mm

Reed relays have never been known for high power switching, in fact, high carry currents can seriously affect switch life and reliability due to the very use of reed switches. On the other hand, reed switches allow for very efficient spatial distribution, taking up miniscule amounts of surface area on your board.

One of the first impressions we’ve had upon opening the samples that Pickering sent us is the extremely neat and tidy packing. Each set of relays came in its own tiny plastic box with clear windows, complete with a protective layer of sponge and a satisfying “click” when opened and closed. Nothing important for the tests, but a nice touch nevertheless. Pickering has also thrown in a really nice set of literature, including an 80-page product catalog, along with a handy relay look-up chart and a brief relay theory overview booklet.

Pickering’s new 120 Series relays have an exceptionally small footprint, with 20 watts of switching power and 3, 5 or 12 Volt coils are the smallest relays of such performance on the market. With a 4mm by 4mm base, they are almost four times smaller than Pickering’s own 110 series.

The 110 Series have already offered an extremely compact relay solution with great performance. We also loved the fact that it is breadboard friendly and operable directly from TTL logic. This means that it can be directly incorporated in many existing prototypes without much preparation. The 110 Series and the 120 Series relays have very similar specifications in their datasheets, so we took them to the testing bench to see if any hidden differences lurk beneath.