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2N1711

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Technical/Catalog Information2N1711
VendorSTMicroelectronics
CategoryDiscrete Semiconductor Products
Transistor TypeNPN
Voltage - Collector Emitter Breakdown (Max)50V
Current - Collector (Ic) (Max)500mA
Power - Max800mW
DC Current Gain (hFE) (Min) @ Ic, Vce100 @ 150mA, 10V
Vce Saturation (Max) @ Ib, Ic1.5V @ 15mA, 150mA
Frequency - Transition100MHz
Current - Collector Cutoff (Max)-
Mounting TypeThrough Hole
Package / CaseTO-39-3, Metal Can
PackagingTube
Drawing Number*
Lead Free StatusLead Free
RoHS StatusRoHS Compliant
Other Names 2N1711
2N1711
497 2594 5 ND
49725945ND
497-2594-5

Product Manufacturers Pack D/C
2N1711 - - -

Pinout/Connection Diagram

2n1711 Circuit

Repeater or other unattended equipment can be turned on or off with ordinary telephone Phone at remote station is called and allowed to ring three times Caller then hangs up, waits 20 s, redials number and lets it ring three times again, then hangs up. Circuit then performs desired control function. Any combination of rings can be used as long as total is less than nine. Decoder U2 is programmed by moving two jumper wires to various outputs of U2. Relay K2 is chosen to give desired momentary, latching, or stepping function. Relay K1 is used for validating phone line, If remote station keying voltage is taken through contacts of K1, interruption of phone line prevents activation of transmitter. C1 stores voltage during brief interruptions such as when phone is ringing. Article gives detailed explanation of ring-counting circuit. LEDs 11-14 indicate status of control sequence and aid in troubleshooting. K1 and K2 are sensitive DPDT relays with 8000-ohm coils. R11 is selected for desired time setting.-R. C. Heptig, Automatic Telephone Controller for Your Repeater, Ham Radio, Nov. 1974, p 44-48.

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PDF / Datasheet

2N1711 PDF Download

2N1711

File Size: 55558 KB
Manufacturer: ETC [ETC]

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