HT18LG-G Supertex, HT18LG-G Datasheet

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... Protection Ring ● General Description The Supertex HT18LG is an electronic line switch circuit that replaces the mechanical hook switch contact or a discrete hook switch in a telephone handset or modem. It switches the positive side of the telephone line using control inputs that are referenced to the negative side of the line. In its off state, it can withstand 350V on the positive input. In its on state, it has a maximum series resistance of 18Ω ...

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... Input logic high for DP and LS IH(LS) IH(DP) T Turn-on time ON T Turn-off time OFF 1.27mm pitch HT18LG-G Pin Configuration Value +350V +18V +10V -65°C to +150°C Product Marking +150°C +300°C 0.8W Package may or may not include the following marks 25° ...

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... Positive output side of a telephone line. Zener protection to prevent this output from rising above 18V required Charge Pump L = OFF and Logic Control ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 3 DP Switch State OFF OFF (8) TP (7) CS (3) GND ● Tel: 408-222-8888 ● www.supertex.com HT18 ...

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... Supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives an adequate “product liability indemnification insurance agreement.” Supertex inc. does not assume responsibility for use of devices described, and limits its liability to the replacement of the devices determined defective due to workmanship ...