.. Interdigitated structure provides high emitter efficiency .. Diffused emitter ballasting resistors providing excellent current sharing and withstanding a high VSWR .. Local thick oxide and gold sandwich metallization realizes very stable characteristics and excellent lifetime .. Multicell geometry gives good balance of dissipated power and low thermal resistance.
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Description These dual SSRs (LH1544, Duall Form A) are SPST normally open switches which can replace electrome- chanical relays in many applications. The relays pro- vide a low-capacitance, high-voltage switch contact with high off-resistance and low switch-offset voltage. These characteristics, combined with high-speed actuation, result in an SSR which is ideal for small sig- nal and dc instrumentation applications. The relays are constructed by using a GaAIAs LED for actuation control and an integrated monolithic die for the switch output. The die is comprised of a photo- diode array, switch-control circuity, and low-capaci- tance MOSFET switches.
