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B-02-RTF Datasheet(PDF) 20 Page - NEC |
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B-02-RTF Datasheet(HTML) 20 Page - NEC |
20 / 45 page ![]() 20 DC Line Filters VOL.10 ●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data. ●Please request for a specification sheet for detailed product data prior to the purchase. ●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog. 9634DCLVOL10E1106E2 bST-101, 201 18 max. ø0.32 11 max. bST-202 16 max. ø0.4 9.0 max. bST-202S 13 max. ø0.32 7.0 max. Circuit diagram Shape and Dimensions/Circuit Diagram Noise Filters for Telephone Sets ST-101, 201, 202, 202S [RoHS Compliant] ST-101 0.5 to 7 3 (at 0.5 MHz) 50 200 180 –20 to +75 AM band ST-201 7 to 40 1.5 (at 7 MHz) 50 200 100 –20 to +75 FM band ST-202 7 to 100 0.6 (at 100 MHz) 50 1000 40 –20 to +75 FM band ST-202S 7 to 100 0.6 (at 100 MHz) 50 1000 35 –20 to +75 FM band Frequency range Impedance Rated voltage Rated current DC resistance Operating Model temperature range Remarks (MHz) (k ) min. DC (V) (mA) (m /Line) max. (˚C) Noise Filters for Telephone Sets ST-101, 201, 202, 202S [RoHS Compliant] 0.01 0.1 1 10 100 201 202 202S 101 Frequency (MHz) 0.1 1 10 100 500 Impedance vs. Frequency • Withstanding voltage: 500VDC (one minute, between lines) • Insulation resistance: more than10M (250VDC, between lines) • Recommended soldering conditions: 350±10˚C, 2 to 3 sec. [mm] Telephone set Terminal (facsimile, card reader, etc.) Installed filter ST-201 ST-201A ST-202 ST-202A ST-202S SZ-03 ST-101 ST-101A ST-101F2 ST-101F4 ST-110AH ST-110AV ST-110BH ST-110BV ST-104A4 ST-204A1 ST-204A3 ST-204A4 Rosette Installed filter Installation position Telephone line Line terminal unit LFT HFT Installation Examples Insertion in Driver/ Receive circuit in telephone Telephone Drv. Rec. Installation at rosette or circuit input/output ST, LFT, HFT Circuit L2 L1 Telephone Design Examples DIP Type Common Mode for Telephone Sets |
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