What is the termination finish of the OC150G/HG, and do you have any recommendations for Peak-Reflow-Temperature and Time-at-Peak-Reflow Temperature?

The OC150G and OC150HG leads are solder-dipped in Sn96. Peak recommended reflow tempeature for the LEDs, according to their datasheet, is 260°C for 10 seconds. VMI diodes are rated at 350°C for three seconds, but given that the LEDs are significantly lower in temperature recommendations, the LED recommendation is the gating item.