MIL-M-38510/12J
Description of device type 04 - Continued
Circuit C. This circuit is used to obtain extended pulse width. This configuration obtains extended pulse widths, because of the larger timing resistor allowed by Beta multiplication.
Electrolytics with high ( > 5 µA ) reverse leakage currents can be used.
R < RX (0.7) (hFEQ1) or < 2.5 Mn whichever is lesser.
RX (minimum) < RY < (maximum) (5 ≤ RY ≤ 10 kn is recommended).
Q1: NPN silicon transistor with hFE requirements of above equations, such as 2N5961 or 2N5962. tW � 0.3 RCX.
NOTES:
1. CX may vary from 0 to any necessary value available. If however, the capacitor has leakage approaching
3.0 µA or if stray capacitance from either terminal to ground is more than 50 pF, the timing equations may not represent the pulse with obtained.
2. Configuration B and C are not recommended with retriggerable operation.
3. RX may vary from 5.0 to 25 kn
FIGURE 3. Device descriptions - Continued.
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