BD165 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 45 V
• Collector-Base Voltage, max: 45 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 1.5 A
• Collector Dissipation: 20 W
• DC Current Gain (h_fe): 40
• Transition Frequency, min: 6 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-126

Here is an image showing the pin diagram of this transistor.The complementary PNP transistor to the BD165 is the BD166.The BCP54 (SOT-223), BCP54-10 (SOT-223), BCP54-16 (SOT-223), BCX54 (SOT-89), BCX54-10 (SOT-89) and BCX54-16 (SOT-89) is the SMD version of the BD165 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the BD165 with the 2N6038, 2N6038G, 2N6039, 2N6039G, 2SC2497, 2SC2497-R, 2SC2497-S, 2SC2497A, 2SC2497A-R, 2SC2497A-S, 2SC3785, 2SC3786, 2SC3808, 2SD1348, 2SD1348-R, 2SD1348-S, 2SD1348-T, 2SD1348-U, 2SD1509, 2SD1682, 2SD1682-R, 2SD1682-S, 2SD1682-T, 2SD1682-U, 2SD1683, 2SD1683-R, 2SD1683-S, 2SD1683-T, 2SD1683-U, 2SD1722, 2SD1722-Q, 2SD1722-R, 2SD1722-R, 2SD1722-S, 2SD1723, 2SD1723-Q, 2SD1723-R, 2SD1723-R, 2SD1723-S, 2SD794, 2SD794-O, 2SD794-R, 2SD794-Y, 2SD794A, 2SD794A-O, 2SD794A-R, 2SD794A-Y, 2SD985, 2SD985-K, 2SD985-L, 2SD985-M, 2SD986, 2SD986-K, 2SD986-L, 2SD986-M, BD135, BD135-10, BD135-16, BD135-6, BD135G, BD137, BD137-10, BD137-16, BD137-6, BD137G, BD139, BD139-10, BD139-16, BD139-6, BD139G, BD167, BD169, BD175, BD175-10, BD175-16, BD175-6, BD177, BD177-10, BD177-6, BD179, BD179-10, BD179-6, BD179G, BD187, BD189, BD226, BD228, BD230, BD233, BD233G, BD235, BD235G, BD237, BD237G, BD375, BD375-10, BD375-16, BD375-25, BD375-6, BD377, BD377-10, BD377-16, BD377-25, BD377-6, BD379, BD379-10, BD379-16, BD379-25, BD379-6, BD439, BD439G, BD441, BD441G, BD675, BD675A, BD675AG, BD675G, BD677, BD677A, BD677AG, BD677G, BD679, BD679A, BD679AG, BD679G, BD775, BD777, BD779, BD785, BD787, BD787G, BD789, BDX35, BDX36, BDX37, KSB985, KSB985-O, KSB985-R, KSB985-Y, KSB986, KSB986-O, KSB986-R, KSB986-Y, KSD794, KSD794-O, KSD794-R, KSD794-Y, KSD794A, KSD794A-O, KSD794A-R, KSD794A-Y, KSE181, KSE182, KSE800, KSE801, KSE802, KSE803, KTC2814, KTC2814-O, KTC2814-Y, MJE181, MJE181G, MJE182, MJE182G, MJE223, MJE224, MJE240, MJE241, MJE721, MJE722, MJE800, MJE800G, MJE801, MJE801G, MJE802, MJE802G, MJE803 or MJE803G.