Forward blocking region irrm at vrrm off state dc dc junction temperature. The data sheet for a 2n2646 unijunction transistor gives the intrinsic. There is gate trigger voltage, gate trigger current, holding current, on. Scra69254, scra69254 datasheet pdf, scra69254 data sheet. Maximum ratings rating symbol value unit power dissipation1 p. Highreliability discrete products and engineering services since 1977 2n44412n4444 silicon controlled rectifiers rev.
In addition, these devices are much faster switches. Functioning as a trigger diode with a fixed voltage reference, the db3db4 series can be used in conjunction with triacs for simplified gate control circuits or as a starting element in fluorescent lamp ballasts. Boca, alldatasheet, datasheet, datasheet search site for electronic components. C106bg thyristor scr 4a 200v to225aa on semiconductor datasheet pdf data sheet free from datasheet data sheet search for integrated circuits ic, semiconductors and other electronic components such as resistors, capacitors, transistors and diodes. The 2n is designed for use in pulse and timing circuits, sensing circuits and thyristor trigger. Scr datasheet, scr pdf, scr data sheet, scr manual, scr pdf, scr, datenblatt, electronics scr, alldatasheet, free, datasheet, datasheets, data sheet, datas sheets. Lm555 timer 1 features 3 description the lm555 is a highly stable device for generating 1 direct replacement for se555ne555 accurate time delays or oscillation. The 2n2646 is designed for use in pulse and timing circuits, sensing circuits and thyristor trigger circuits. The nte5411 through nte5416 are pnpn silicon controlled rectifier scr devices designed for high volume consumer applications such as temperature, light. Kg karl kruse is a worldwide leading franchised distributor iso. Although a unijunction transistor is not a thyristor, this device can trigger larger thyristors with a pulse at base b1. In addition, thesedevices are much faster switches. Free packages are available maximum ratings rating symbol value unit collector. It has three external terminals anode, gate, and cathode and uses the alternative symbols of figure 1a and has the transistor equivalent circuit of figure 1b.
The connections at the ends of the bar are known as bases b1 and b2. Available as nonrohs s npb plating, standard, and as rohs by adding pbf suffix. Here v1 is the dc voltage source, a resistor type load is connected in series with scr and vg is the trigger voltage at the gate of the device. For example, c106 scr which has gate trigger current 200ua and. Silicon unijunction transistor, 2n2646 datasheet, 2n2646 circuit, 2n2646 data sheet. Philips silicon unijunction transistor,alldatasheet, datasheet, datasheet search site for. On semiconductor 0x25l6410fi895a2ge4fdzlkwipy datasheet pdf.
Ujt 2n2646 specification 2n2646 ujt scr 2n2646 put 2n2646 2n2647 scr firing inverter circuit 2n2646 ujt 2n2646 ratings ujt 2n2646 range text. Siliconcontrolled rectifier scr specifications explained there are many different specifications which youll find on a datsheet for siliconcontrolled rectifiers scrs. Now for recovering the scr to its high resistance state the current flow though the device must be brought to zero for fraction of second. The device is popular as a triggering device and is not suited for driving power loads. High power scr 2n2647 scr 2n2646 2n2646 circuit transistor 2n2646 power scr 2n2646 of symbol power scr rbbo text. An scr is a fourlayer pnpn silicon semiconductor device. Apr 20, 2019 the device is designed to have highly sensitive trigger levels and is suitable for applications where available gate currents are limited. Additional timing from microseconds through hours terminals are provided for triggering or resetting if operates in both astable and monostable modes desired. W, slw and slw, consist of a gallium arsenide infrared emitting diode driving a silicon phototransistor in a 6pin dual. Comset semiconductors 22 2n1595 thru 2n1599 symbol ratings 2n1595 2n1596 2n1597 2n1598 2n1599 idrm peak forward blocking current rated vdrm with gate open, tj 125c max.
Forward blocking region irrm at vrrm off state t, maximum allowable case temperature c c 6. Aug 14, 2019 2n2646 ujt pdf the data sheet for a 2n unijunction transistor gives the intrinsic standoff ratio. A unijunction transistor is composed of a bar of ntype silicon having a ptype connection in the middle. Boca silicon pn unijuction transistor,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. The 2n2646 is intended for general purpose industrial applications where. Scra69254 datasheet pdf, scra69254 data sheet, scr. I take care dataseet describing my goods as honestly and accurately as i can. Unijunction transistor and ujt relaxation oscillator. All the part names for which the file 0x25l6410fi895a2ge4fdzlkwipy.
Philips, alldatasheet, datasheet, datasheet search site for electronic. Images are for reference only see product specifications. Mar 01, 2019 2p4m datasheet, 2p4m 2a v thyristor datasheet, buy 2p4m. Aug 15, 2019 datasheet 2n2646 pdf 2n unijunction transistor. Find the pdf datasheet, specifications and distributor information. Nj semiconductors reserves the right to change test conditions, parameters limits and package dimensions without notice information ftirnished by nj. Silicon pn unijuction transistor, 2n2646 datasheet, 2n2646 circuit, 2n2646 data sheet. The 2n2646 is desig ned for use in pulse and timing circuit s, sensing circuits and thyristor trigg. The device is designed to have highly sensitive trigger levels and is suitable for applications where available gate currents are limited. Aug 10, 2019 nj semiconductors reserves the right to change test conditions, parameters limits and package dimensions without notice information ftirnished by nj.
Some part number from the same manufacture multicomp. The surface mount sot233l package allows compact, smd based designs for automated manufacturing. Figure 2 shows the basic way of using the scr as a dc switch, with the anode positive relative to the cathode, and the scr controlled via its gate. Maximum ratings tj125c unless otherwise noted symbol ratings 2n2646 2n2647 vb1e base 1 emitter voltage 30 v vb2e base 2 emitter voltage 30 v ifrms rms emitter current 50 ma iem emitter peak current 2 a ptot total power dissipation 300 mw tj maximum junction 150 tstg storage temperature range55. High power scr 2n2647 scr 2n2646 2n2646 circuit transistor 2n2646 power scr.
Jun 15, 2018 2n2646 based voltage controlled scr pulser a center tap 50hz step down transformer with two diodes is used to get a train of positive sine pulses at 100hz which is applied to q6 base via r51. Apr 02, 2019 nj semiconductors reserves the right to change test conditions, parameters limits and package dimensions without notice information ftirnished by nj. Silicon controlled rectifier scr thyristors engineering360. Brx49 datasheet, brx49 pdf, brx49 data sheet, datasheet, data sheet, pdf, boca semiconductor corporation, scrs silicon controlled rectifiers. C106d1 thyristor scr 4a 400v to225aa on semiconductor datasheet pdf data sheet free from datasheet data sheet search for integrated circuits ic, semiconductors and other electronic components such as resistors, capacitors, transistors and diodes.