2SC3918 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 50 V
• Collector-Base Voltage, max: 50 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 0.5 A
• Collector Dissipation: 0.3 W
• DC Current Gain (h_fe): 50
• Transition Frequency, min: 250 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92S

Here is an image showing the pin diagram of this transistor.Sometimes the "2S" prefix is not marked on the package - the 2SC3918 might only be marked "C3918".The complementary PNP transistor to the 2SC3918 is the 2SA1524.The 2SC3325 (SOT-23), 2SC3325-O (SOT-23), 2SC3325-Y (SOT-23), 2SC3441 (SOT-23), 2SC3441-D (SOT-23), 2SC3441-E (SOT-23), 2SC3441-F (SOT-23), 2SC3912 (SOT-23), 2SC3913 (SOT-23), 2SC3914 (SOT-23), 2SC3915 (SOT-23), 2SD602A (SOT-23), 2SD602A-Q (SOT-23), 2SD602A-R (SOT-23), 2SD602A-S (SOT-23), FMMTA05 (SOT-23), KST05 (SOT-23), MMBT6428 (SOT-23), MMBTA05 (SOT-23), PZTA05 (SOT-223) and SMBTA05 (SOT-23) is the SMD version of the 2SC3918 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SC3918 with the 2N3416, 2N3417, 2SC1318, 2SC1318-Q, 2SC1318-R, 2SC1318-S, 2SC1384, 2SC1384-Q, 2SC1384-R, 2SC1384-S, 2SC1509, 2SC1509-R, 2SC1509-S, 2SC2274, 2SC2274-D, 2SC2274-E, 2SC2274-F, 2SC2274K, 2SC2274K-D, 2SC2274K-E, 2SC2274K-F, 2SC2277, 2SC2277B, 2SC2277C, 2SC2277D, 2SC2655, 2SC2655O, 2SC2655Y, 2SC3243, 2SC3243-C, 2SC3243-D, 2SC3243-E, 2SC3244, 2SC3244-C, 2SC3244-D, 2SC3244-E, 2SC3247, 2SC3247-H, 2SC3247-J, 2SC3328, 2SC3328-O, 2SC3328-Y, 2SC3708, 2SC3708-R, 2SC3708-S, 2SC3708-T, 2SC3916, 2SC3917, 2SC3919, 2SC3920, 2SC3921, 2SC3922, 2SC3923, 2SC3939, 2SC3939-R, 2SC3939-S, 2SC3940A, 2SC3940A-Q, 2SC3940A-R, 2SC3940A-S, 2SC4208A, 2SC4208A-Q, 2SC4208A-R, 2SC4208A-S, 2SC4408, 2SC4604, 2SC6043, 2SD1207, 2SD1207-R, 2SD1207-S, 2SD1207-T, 2SD1207-U, 2SD1347, 2SD1347R, 2SD1347S, 2SD1347T, 2SD1347U, 2SD1616, 2SD1616-K, 2SD1616-L, 2SD1616-U, 2SD1616A, 2SD1616A-K, 2SD1616A-L, 2SD1616A-U, 2SD1835, 2SD1835-R, 2SD1835-S, 2SD1835-T, 2SD1835-U, 2SD438, 2SD438-D, 2SD438-E, 2SD438-F, 2SD438-G, 2SD667, 2SD667A, 2SD667AB, 2SD667AC, 2SD667B, 2SD667C, 2SD667D, 2SD789, 2SD789-B, 2SD789-C, 2SD789-D, 2SD789-E, 2SD863, 2SD863-D, 2SD863-E, 2SD863-F, BC877, BC879, KSC1008CG, KSC1008CO, KSC1008CY, KSC2331O, KSC2331Y, KSD1616, KSD1616-G, KSD1616-L, KSD1616-Y, KSD1616A, KSD1616A-G, KSD1616A-Y, KSP8098C, KSP8099C, KTC1006, KTC1008, KTC1008-GR, KTC1008-Y, KTC3209, KTC3209O, KTC3209Y, KTD863, KTD863-GR, KTD863-O, KTD863-Y, NTE192A or NTE382.