2N6249 DATASHEET PDF

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2N 2N 2N Units. Collector – Emitter Voltage. VCEO. . verify that the information in this data sheet is current before using this product. Visit for additional data sheets and product information. Forward Current Transfer Ratio. IC = 10 Adc, VCE = 3 Vdc. 2N 2N NPN POWER SILICON TRANSISTOR. Qualified per MIL-PRF/ T4- LDS Rev. 1 (). Page 1 of 5. DEVICES. LEVELS. 2N 2N

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It consists of a resistor and a zener diode.

Tables 4 and 5 list devices by their V -ev rating. In these cases, a tracking regulator is required. Output Current Boosting Figure C illustrates a method for obtaining greater output currents with the three terminal positive regulators.

Surface-mount capacitors are marked with a two-character code consisting of a letter indicating the significant digits see Table In these applications, no gap is used as the high datashedt 3 X 0 results in a desirable effect of very low magnetizing current levels.

General Layout and Component Placement Considerations As mentioned previously, modem integrated circuit regulators are necessarily high bandwidth devices in order to obtain good transient response characteristics.

2N Datasheet PDF – Comset Semiconductors

Some ICs are available in different operating temperature ranges. The number of rejects observed, taken over the number of device hours accumulated at the end of the observation period and expressed as a percent, is called thepoint estimate failure rate.

Even this component may be omitted if the power-supply filter is not datashest cated an appreciable distance from the regulator. This is particularly important in many small Figure Capacitor Dimensions L x H x W: The output fre- quency is equal to half that of the oscillator.

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2N6249 Datasheet

The good news is that most have been characterized, improved, and cost reduced for this application. The minimum time the fault condition must occur can be adjusted by changing the value of the delay capacitor. Note that the pass element is required to operate with a collector current of only Isc during short circuit conditions, not the full output current, Ik. In such cases, it is often possible to find the standard equivalent or a suitable replacement by using one of the semiconductor cross-reference directories available from various replacement-parts distributors.

At low output currents, Va approximately equals Vo and Vr2 is less than than Vo. All of these devices utilize the same basic circuit configuration as shown in Figure A. For the R package, the case is ground.

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If not included, regulation would be lost at low output currents. Design of Capacitor-Input Filters The best practical procedure for the design of capacitor-input filters still remains based on the graphical data presented by Schade’ in Black on White Material: In this circuit the voltage sensing inputs of both the internal amplifiers are tied together for sensing the overvoltage condition.

However, the flyback is an excellent choice when multiple output voltages are required and does tend to provide better cross regulation than the other types. Maximum Output Current Iq max This is the maximum output current capability of the switching control circuit outputs. General specifications for these regulators are shown in Table The flyback transformer turns on the transistor with a 5.

Transistor waveforms shown in Figure 5 illustrate that the voltage requirements are identical to the flyback. The boundaries of the SOA curve are formed by the Icmax, power dissipation, second breakdown and VcEo ratings of the transistor. The resultant values are rounded to make up the series.

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Datasheeets & Application Notes

The current limit dwtasheet is set for a maximum output current of 85 amperes. Because both emitters are at an ac ground point, expensive drive trans- formers can now be replaced by lower cost capacitively coupled drive circuits. The MC — To fill the need for a low cost, low complexity method of implementing crowbar overvoltage protection which does not suffer the disad- vantages of previous techniques, an IC has been developed for use as an OVP sense and drive circuit, the MC The factors in Equation The following paragraphs provide useful information and performance results regarding this Flyback design.

To assure that the reliability level does not change over a period of time. Unfortunately, there is no exact step-by-step procedure that can be followed which will lead to the ideal regulator and circuit configuration for a specific application. The values for Rl, R2, and Rsc neglecting base current of Q3 are given by: Vp-p Extremely low noise 0.

Integrated Device Technology Inc. Although it initially appears very similar to dataxheet flyback, it is not. Most powdered-iron toroid cores that we amateurs use are manufactured by Micrometals, who uses paint to identify the material used in the core.