5W 500mA relays are 10 x 3.7mm
- Autore:Ella Cai
- Rilasciare il:2018-09-05
Pickering has introduced miniature single-in-line relays that can switch 5W and 500mA through their single Form A (SPST) normally-open (energise-to-make) contact.
Called the 111 Series, they all 6.6mm high and cover an area 3.7 x 10mm.
There is a base model (111), a low-cost version (111P) amd an RF version designed for switching up to 1.5GHz (111RF).
111 and 111RF come in a metal can package, while 111P is in a plastic package that has an internal mu-metal screen.
“Magnetic screening is essential to avoid magnetic interaction problems. Interaction is usually measured as a percentage increase in the voltage required to operate a relay when two additional relays, stacked one each side, are themselves operated,” said the firm. “An unscreened device mounted on this pitch would have an interaction figure of around 40%. Relays of this size would therefore be totally unsuitable for applications where dense packing is required.” – Series 111 have an interaction figure of around 1%.
111 and 111P have four pins spaced at 2.54mm, while, to accommodate the internal coaxial screened path, the 111RF has two ground pins – bringing the pin count to 6 at a 1.5mm spacing.
Coils are 5V (500Ω) or 3V (200Ω), with or without an internal diode.
Capacitance is 1.5pF max for both closed-switch-to-coil and across-open-switch (other connections guarded).
Insulation resistance is >1012Ω and maximum contact voltage is 170V.
Standard operating temperature is across -20 to +85°C, however +125°C operation can be achieved if the coil drive voltage.
A maximum of 20grav vibration and 50grav shock can be withstood.
If more power has to be handles in the same frootprint, the taller Series 110 and Series 112 are available.
Called the 111 Series, they all 6.6mm high and cover an area 3.7 x 10mm.
There is a base model (111), a low-cost version (111P) amd an RF version designed for switching up to 1.5GHz (111RF).
111 and 111RF come in a metal can package, while 111P is in a plastic package that has an internal mu-metal screen.
“Magnetic screening is essential to avoid magnetic interaction problems. Interaction is usually measured as a percentage increase in the voltage required to operate a relay when two additional relays, stacked one each side, are themselves operated,” said the firm. “An unscreened device mounted on this pitch would have an interaction figure of around 40%. Relays of this size would therefore be totally unsuitable for applications where dense packing is required.” – Series 111 have an interaction figure of around 1%.
111 and 111P have four pins spaced at 2.54mm, while, to accommodate the internal coaxial screened path, the 111RF has two ground pins – bringing the pin count to 6 at a 1.5mm spacing.
Coils are 5V (500Ω) or 3V (200Ω), with or without an internal diode.
Capacitance is 1.5pF max for both closed-switch-to-coil and across-open-switch (other connections guarded).
Insulation resistance is >1012Ω and maximum contact voltage is 170V.
Standard operating temperature is across -20 to +85°C, however +125°C operation can be achieved if the coil drive voltage.
A maximum of 20grav vibration and 50grav shock can be withstood.
If more power has to be handles in the same frootprint, the taller Series 110 and Series 112 are available.
