Features
◦ Ultra-Compact 8x6mm DFN Package
◦ True 2 Form C Break-Before-Make Switch Operation
◦ Low On Resistance (500mΩ TYP)
◦ Low Output Capacitance (18pF TYP @ 25V)
◦ High voltage (100V) suitable for many automotive
component test requirements
◦ Low Output Leakage (1nA MAX @ 80V, <100pA
@10V,<1pA in T-Switch configuration)
◦ 750mA Maximum Continuous Load Current
◦ 2A Pulsed Current (100ms Period @ 10% Duty Cycle)
◦ VIN(low) of 1.1V - suitable with Darlington or Open
Collector
◦ Isolation Voltage (300VRMS)
◦ Long Life / High Reliability

Description
The SMJ1209 is a 2 Form C relay that offers a high
reliability alternative to EMRs in Semiconductor test
applications.
Packaged in a miniature 12DFN (8x6mm) outline, the
SMJ1209 uses less board space than alternative discrete
SSR designs.
Guaranteed break-before-make operation further offers
easier implementation than designs using discrete SSRs
and additional control circuitry. No external timing
circuits are required to achieve correct switch Open-Close
Gap timing.

Applications
◦ Electro-Mechanical Relay (EMR) Replacement
◦ Automatic Test Equipment
◦ High Volume Semiconductor Test
◦ Data Acquisition
◦ Medical Equipment
◦ Battery Monitoring
◦ Safety Systems
◦ Inverting/Summing Amplifiers (T-Switch)