Features • Miniature non-hermetic surface-mount package • Radiation tolerant • High CTR guaranteed over -55 °C to +125 °C ambient temperature range • 1000 Vdc electrical isolation Description The OLC049 can be used for large satellite constellation applications that require optical isolation in radiation environments such as gamma, neutron, and proton radiation with a high Current Transfer Ratio (CTR) and low saturation Vce. Each optocoupler consists of an LED and N-P-N silicon phototransistor that is electrically isolated, but optically coupled inside a non-hermetic, four-pin Leadless Chip Carrier (LCC) package. The hermetic surface-mount variant of the OLC049 optocoupler is available as the OLS049, both in a non-screened catalog version as well as a high-reliability screened version. Figure 1. OLC049 Block Diagram A functional block diagram of the OLC049 is shown in Figure 1. The absolute maximum ratings of the OLC049 are provided in Table 1. Electrical specifications are provided in Table 2. Typical performance characteristics of the OLC049 are illustrated in Figures 2 through 4. A typical switching test circuit is shown in Figure 5 and package dimensions for the OLC049 are provided in Figure 6. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 206215B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • April 20, 2022

Table 1. OLC049 Absolute Maximum Ratings1 Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device. Measured between pins 1 and 4 shorted together, and pins 2 and 3 shorted together. Ta = 25 °C and duration = 1 s. Derate linearly at 1 mW/°C above 65 °C. Derate linearly at 3 mW/°C above 25 °C. ESD HANDLING: Although this device is designed to be as...

DATA SHEET • OLC049: RADIATION-TOLERANT, PHOTOTRANSISTOR SURFACE-MOUNT OPTOCOUPLER Table 2. OLC049 Electrical Specifications1 (Ta = 25 °C, Unless Otherwise Noted) 1 Performance is guaranteed only under the conditions listed in the above table. 2 Measured between pins 1 and 4 shorted together, and pins 2 and 3 shorted together. Ta = 25 °C and duration = 1 s. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 206215B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • April 20,...

DATA SHEET • OLC049: RADIATION-TOLERANT, PHOTOTRANSISTOR SURFACE-MOUNT OPTOCOUPLER Typical Performance Characteristics (TA = –55 °C to +125 °C, Unless Otherwise Noted) Figure 2. Forward Current vs Forward Voltage Figure 3. Normalized Collector Current vs Forward Current Figure 4. Normalized CTRCE vs Temperature Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 206215B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice •

Figure 5. OLC049 Switching Test Circuit 0.150±0.002 BOTTOM VIEW ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED. METALIZATION PULL BACK FROM SUBSTRATE EDGE: 0.002 MAXIMUM. UNLESS SPECIFIED DIMENSIONS ARE SYMMETRICAL ABOUT CENTER LINES. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 206215B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • April 20, 2022

DATA SHEET • OLC049: RADIATION-TOLERANT, PHOTOTRANSISTOR SURFACE-MOUNT OPTOCOUPLER Copyright © 2022 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation,...