2SD837-R 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: 4 A
• Collector Dissipation: 40 W
• DC Current Gain (h_fe): 1000 to 2500
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.The 2SD837-R transistor can have a current gain of 1000 to 2500. The gain of the 2SD837 will be in the range from 1000 to 10000, for the 2SD837-P it will be in the range from 4000 to 10000, for the 2SD837-Q it will be in the range from 2000 to 5000.Sometimes the "2S" prefix is not marked on the package - the 2SD837-R might only be marked "D837-R".The complementary PNP transistor to the 2SD837-R is the 2SB751-R.The FZT692B (SOT-223) is the SMD version of the 2SD837-R transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SD837-R with the 2N6043, 2N6043G, 2N6044, 2N6044G, 2N6045, 2N6045G, 2N6387, 2N6387G, 2N6388, 2N6388G, 2N6530, 2N6531, 2N6532, 2N6533, 2SC1985, 2SC1986, 2SC2075, 2SC2315, 2SC2316, 2SC3179, 2SD1274, 2SD1274A, 2SD1274B, 2SD2241, 2SD823, 2SD837A, 2SD837A-R, BD203, BD243A, BD243B, BD243C, BD303, BD535, BD537, BD539A, BD539B, BD539C, BD539D, BD543A, BD543B, BD543C, BD545A, BD545B, BD545C, BD645, BD647, BD649, BD651, BD797, BD799, BD801, BD807, BD809, BD897, BD897A, BD899, BD899A, BD901, BD949, BD951, BD953, BD955, BDT61, BDT61A, BDT61B, BDT61C, BDT63, BDT63A, BDT63B, BDT63C, BDT65, BDT65A, BDT65B, BDT65C, BDT81, BDT81F, BDT83, BDT83F, BDT85, BDT85F, BDT87, BDT87F, BDW23A, BDW23B, BDW23C, BDW40, BDW41, BDW41G, BDW42, BDW42G, BDW43, BDW53A, BDW53B, BDW53C, BDW53D, BDW63A, BDW63B, BDW63C, BDW63D, BDW73A, BDW73B, BDW73C, BDW73D, BDX33A, BDX33B, BDX33BG, BDX33C, BDX33CG, BDX33D, BDX53A, BDX53B, BDX53BG, BDX53C, BDX53CG, BDX53D, BDX77, D44H11, D44H11FP, D44H8, MJE15028, MJE15028G, MJE800T, MJE801T, MJE802T, MJE803T, TIP100, TIP100G, TIP101, TIP101G, TIP102, TIP102G, TIP120, TIP120G, TIP121, TIP121G, TIP122, TIP122G, TIP130, TIP130G, TIP131, TIP131G, TIP132, TIP132G, TIP140T, TIP141T, TIP142T, TIP41D or TIP42D.