Relays, Solid State Relays (SSRs), CPC1035NTR, Littelfuse

 CPC1035N Series SPST 100 mA 350 V Single Channel Solid State Relay SMT - SOIC-4

https://www.futureelectronics.com/p/electromechanical--relays--solid-state-relays/cpc1035ntr-littelfuse-5751524

Vishay, SI2302DDS-T1-GE3, Transistors, Mosfets

 SI2302DDS Series N-Channel 20 V 2.6 A 0.067 Ω 3.5 nC SMT Mosfet - SOT-23

https://www.futureelectronics.com/p/semiconductors--discretes--transistors--mosfets/si2302dds-t1-ge3-vishay-2106160

Transistors, Mosfets, SI2302DDS-T1-GE3, Vishay

 SI2302DDS Series N-Channel 20 V 2.6 A 0.067 Ω 3.5 nC SMT Mosfet - SOT-23

https://www.futureelectronics.com/p/semiconductors--discretes--transistors--mosfets/si2302dds-t1-ge3-vishay-8045850

TE Connectivity, 796136-1, Electromechanical, Battery Holders & Accessories

 2 Contact 20 mm Coin Cell Single Battery Holder

https://www.futureelectronics.com/p/electromechanical--battery-holders-accessories/796136-1-te-connectivity-9980970

Interconnect, PCB, Backpanel, AS0B326-S78N-7F, Foxconn Interconnect Technology

 As0B3 Series 230 Position 0.5 mm Pitch SMT Edgecard Connector

https://www.futureelectronics.com/p/interconnect--connectors-pcb--backpanel-connectors/as0b326-s78n-7f-foxconn-interconnect-technology-8114641

Microchip, DSPIC33FJ256GP710-I/PF, Microcontrollers, 16 bit (DSC)

 dsPIC33F Series 30 kB RAM 256 kB Flash 16-Bit Digital Signal Controller TQFP-100

https://www.futureelectronics.com/p/semiconductors--microcontrollers--16-bit-digital-signal-controller-dsc/dspic33fj256gp710-i-pf-microchip-2259539

Relays, Power Relays, AZ8-1CH-12DE, American Zettler

 AZ8 Series 6 A SPDT 12 VDC PCB Mount Medium Duty Sealed Miniature Power Relay

https://www.futureelectronics.com/p/electromechanical--relays--power-relays/az8-1ch-12de-american-zettler-3044856