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| NTE6410 Unijunction Transistor (UJT) Description: The NTE6410 is a PN unijunction transistor in a TO92 type package designed for use in pulse and timing circuits, sensing circuits and thyristor trigger circuits. Absolute Maximum Ratings: (TA = +25C unless other specified) RMS Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300mW Derate Above 25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0mW/C RMS Emitter Current, IE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA Peak-Pulse Emitter Current (Note 1), IE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A Emitter Reverse Voltage, VB2E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V Interbase Voltage (Note 2), VB2B1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +125C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Note 1. Duty cycle 1%, PRR = 10 PPS Note 2. Based upon power dissipation at TA = +25C Electrical Characteristics: (TA = +25C unless other specified) Parameter Intrinsic Standoff Ratio Interbase Resistance Interbase Resistance Temperature Coefficient Emitter Saturation Voltage Modulated Interbase Current Emitter Reverse Current Peak-Point Emitter Current Valley-Point Current Base-One Peak Pulse Voltage Symbol Test Conditions VB2B1 = 10V, Note 3 Min 0.70 4.0 0.1 - - - - 4.0 5.0 Typ - 6.0 - 2.5 15 0.005 1.0 7.0 8.0 Max 0.85 9.1 0.9 - - 1.0 5.0 - - k %/C V mA A A mA V Unit RBB RBB VBE1(sat) VB2B1 = 10V, IE = 50mA, Note 4 IB2(Mod) IEB2O IP IV VOB1 VB2B1 = 10V, IE = 50mA VB2E = 30V, IB1 = 0 VB2B1 = 25V VB2B1 = 20V, RB2 = 100, Note 4 Note 3. Intrinsic standoff ratio, is defined in terms of peak-point voltage, VP, by means of the equation: VP = VB2B1 VF, where VF is approximately 0.49 volts at +25C @ IF = 10A and decreases with temperature at approximately 2.5mV/C. Components R1, C1, and the UJT form a relaxation oscillator, the remaining circuitry serves as a peak-voltage detector. The forward drop of Diode D1 compensates for VF. To use, the "call" button is pushed, and R3 is adjusted to make the current meter, M1, read full scale. When the "call" button is released, the value of is read directly from the meter, if full scale on the meter reads 1.0. Note 4. Use pulse techniques: PW 300s, duty cycle 2.0% to avoid internal heating, which may result in erroneous readings. .135 (3.45) Min .210 (5.33) Max Seating Plane .500 (12.7) Min .021 (.445) Dia Max B E B2 .100 (2.54) .050 (1.27) .165 (4.2) Max .105 (2.67) Max .105 (2.67) Max .205 (5.2) Max |
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