Features EXCELLENT PERFORMANCE: The rectifier diode features low leakage, forward pressure drop, efficient work and low power consumption, and is easy to use. SEMICONDUCTOR MATERIAL: Made of premium semiconductor material, the rectifier diode has high electrical strength, fast switching speed, good heat dissipation and good current performance. APPLICATION: The diode set is widely used in product development, student experiment, maintenance, production, etc. Suitable for household, office and industrial maintenance equipment and electrical appliances. 200PCS: There are 200 pieces diodes in the package of different models, you can use them respectively according to your actual needs. EASY CARRYING: Comes with a small storage box, these rectifier diodes can be easily carried for convenient use. Specification: Item Type: Rectifier Diode Material: Semiconductor Application: Widely used in product development, student experiment, maintenance, production, etc. Package List:20 x 1N4001 Rectifier Diode20 x 1N4002 Rectifier Diode20 x 1N4003 Rectifier Diode20 x 1N4004 Rectifier Diode20 x 1N4005 Rectifier Diode20 x 1N4006 Rectifier Diode20 x 1N4007 Rectifier Diode 20 x 1N5817 Rectifier Diode20 x 1N5818 Rectifier Diode20 x 1N5819 Rectifier Diode1 x Storage Box  Package List 20 x 1N4001 Rectifier Diode 20 x 1N4002 Rectifier Diode 20 x 1N4003 Rectifier Diode 20 x 1N4004 Rectifier Diode 20 x 1N4005 Rectifier Diode 20 x 1N4006 Rectifier Diode 20 x 1N4007 Rectifier Diode 20 x 1N5817 Rectifier Diode 20 x 1N5818 Rectifier Diode 20 x 1N5819 Rectifier Diode 1 x Storage Box