The Series 88 is a mercury-wetted reed relay with a 1 Form A (normally open) contact configuration, designed for switching applications requiring higher power ratings than dry reed relays. It operates with a 5 V coil, has an initial coil resistance of 140 Ω, and is encapsulated in a plastic package with an internal mu-metal magnetic screen. The relay mounts vertically with the orientation arrow aligned upright and fits on a 0.1 inch pin grid. Its contacts are rated for 50 W at 500 V with a maximum switching current of 3 A. The relay is not available with an internal diode unless specified by the /1D suffix, which this variant does not include.
These ranges of reed relays are available with both dry and mercury wetted switches. They are available with 5, 12 and 24 volts coils, a particularly useful feature of the 5 volt dry devices is their ability to be driven directly from TTL, the coil requiring only 10mA of drive current. All units have an internal magnetic screen and can be supplied with built-in diode if required.
Standard coil voltages are 5, 12 and 24 volts. All relays are fitted with internal magnetic screen to avoid stray magnetic interaction between adjacent relays. Many special coil resistances are available, and relays can be designed to customers specific requirements. These Pickering relays fit straight onto P.C. boards with pins on the popular 0.1 inch grid. They are completely protected, being encapsulated in plastic cases. With these series you get the choice of three different dry reed switches and two mercury wetted switches in a range of configurations to cover all switching problems. See Switch Ratings in adjacent column.
The Series 80 and 85 are electrically similar ranges but with alternative pin configurations; these are shown overleaf. Their mercury wetted equivalents are prefixed 88 and 89 respectively..
| Pickering Electronics | |
|---|---|
| Product Category | Electromechanical Relays |
| Product Number | 88-1-A-5/1 |
| Product Name | Series 80 |
| Relay Type | General; Reed Relay |
| Mounting | PCBoard |
| Poles | Single Pole (SP) |
| Throw | Single Throw |
| Features | Mercury Wetted Contacts |
