... 4W c.operating temperature:-20- 70 d.Storage temperature: -40-85 Electrical Characteristics:1.Operating Temperature range:-20 to +452.Storage temperature:-40 to ... , low less, wide range, stable performance and low temperature risec.used for electric apparatus,aircraft, transmitter,communication equipmentsd. ... types: EE5,10,13,16,19,20,22,25,40, and 55 series. small transformer