MJE721 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 60 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 1.5 A
• Collector Dissipation: 20 W
• DC Current Gain (h_fe): 40
• 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 MJE721 is the MJE711.The 2SC3444 (SOT-89), 2SC3444-C (SOT-89), 2SC3444-D (SOT-89), 2SC3444-E (SOT-89), 2STR1160 (SOT-23), BCP55 (SOT-223), BCP55-10 (SOT-223), BCP55-16 (SOT-223), BCX55 (SOT-89), BCX55-10 (SOT-89), BCX55-16 (SOT-89), BSP41 (SOT-223), BSR40 (SOT-89) and BSR41 (SOT-89) is the SMD version of the MJE721 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the MJE721 with the 2N6038, 2N6038G, 2N6039, 2N6039G, 2SC2497A, 2SC2497A-R, 2SC2497A-S, 2SC3808, 2SD1509, 2SD1684, 2SD1684-Q, 2SD1684-S, 2SD1684-T, 2SD1692, 2SD1692-K, 2SD1692-L, 2SD1692-M, 2SD1724, 2SD1724-Q, 2SD1724-R, 2SD1724-R, 2SD1724-S, 2SD1725, 2SD1725-Q, 2SD1725-R, 2SD1725-R, 2SD1725-S, 2SD669, 2SD669-B, 2SD669-C, 2SD669-D, 2SD794A, 2SD794A-O, 2SD794A-R, 2SD794A-Y, 2SD985, 2SD985-K, 2SD985-L, 2SD985-M, 2SD986, 2SD986-K, 2SD986-L, 2SD986-M, BD137, BD137-10, BD137-16, BD137-6, BD137G, BD139, BD139-10, BD139-16, BD139-6, BD139G, BD167, BD169, BD177, BD177-10, BD177-6, BD179, BD179-10, BD179-6, BD179G, BD189, BD228, BD230, BD235, BD235G, BD237, BD237G, BD377, BD377-10, BD377-16, BD377-25, BD377-6, BD379, BD379-10, BD379-16, BD379-25, BD379-6, BD439, BD439G, BD441, BD441G, BD677, BD677A, BD677AG, BD677G, BD679, BD679A, BD679AG, BD679G, BD681, BD681G, BD777, BD779, BD787, BD787G, BD789, BD791, BDX35, BDX36, BDX37, KSB985, KSB985-O, KSB985-R, KSB985-Y, KSB986, KSB986-O, KSB986-R, KSB986-Y, KSD1692, KSD1692-G, KSD1692-O, KSD1692-Y, KSD794A, KSD794A-O, KSD794A-R, KSD794A-Y, KSE181, KSE182, KSE800, KSE801, KSE802, KSE803, MJE181, MJE181G, MJE182, MJE182G, MJE223, MJE224, MJE240, MJE241, MJE243, MJE243G, MJE270, MJE270G, MJE722, MJE800, MJE800G, MJE801, MJE801G, MJE802, MJE802G, MJE803 or MJE803G.