... -DTL-38999 Ambient Temperature Range-65°C~+175°C(B,W)-65°C~+200°C(C,F,Fm)-55°C~+125°C(Ch)Relative Humidity80~98% at 40 ... ±2°CSalt Spray Resistance≥500h(B,W)≥48h(C,F,Fm ... -17-19-21-23-25 5.Shell plating: F - Electroless nickel plating(bright) -65°C~+200°CFm - Electroless nickel plating(dark) -65 ...