This part is a kind of semiconductor called 1N457.

Function of this product has Small Signal Diode.

Manufacturers : Fairchild Semiconductor

Image and pinout :

Some of the text within the PDF file :

1N457/A 1N457/A DO-35 Color Band Denotes Cathode Small Signal Diode Absolute Maximum Ratings* Symbol VRRM IF(AV) IFSM TA = 25°C unless otherwise noted Parameter Maximum Repetitive Reverse Voltage Average Rectified Forward Current Non-repetitive Peak Forward Surge Current Pulse Width = 1.0 second Pulse Width = 1.0 microsecond Storage Temperature Range Operating Junction Temperature Value 70 200 1.0 4.0 -65 to +200 175 Units V mA A A °C °C Tstg TJ *These ratings are limiting values above which the serviceability of any semiconductor device may be impaired. NOTES: 1) These ratings are based on a maximum junction temperature of 200 degrees C. 2) These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations. Thermal Char [ ... ]

1N457 PDF Datasheet Download