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66193056 Datasheet(PDF) 1 Page - Vishay Siliconix |
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66193056 Datasheet(HTML) 1 Page - Vishay Siliconix |
1 / 4 page PTC Thermistors, Overload Protection For Telecommunication 2322 66. 9.... Vishay BCcomponents Document Number: 29070 For technical questions contact: nlr.europe@vishay.com www.vishay.com Revision: 10-Oct-03 163 FEATURES • Wide resistance range in telecom area 4... to 70 Ω • Fast protection against power contact faults • Withstand high overload currents of up to 10 A • High voltage withstanding capabilities for the larger sized thermistors • Good tracking over a wide temperature range for all matched or binned types • UL1434 approved types available (XGPU2) • Excellent stability over extended time • All telecom PTCs are coated with a high temperature silicon lacquer (UL94V0) to protect them from any harsh environments and to improve their lifetime. APPLICATIONS • Main Distribution Frame (MDF) • Central Office Switching (C.O.) • Subscriber Terminal Equipment (T.E.) • Set-top box (S.B.). MARKING Clear marking on a grey coated body. BC and R25 value. DESCRIPTION Advanced developments in telephony equipment in recent years have radically altered the protection requirements for both exchange and subscriber equipment. The Vishay BCcomponents range of Positive Temperature Coefficient (PTC) thermistors includes devices specially designed to provide overcurrent protection. CCB913 SUBSCRIBER LOOP INTERFACE CIRCUIT (SLIC) OR TRANSFORMER voltage clamp PTC PTC MDF SECONDARY PROTECTION PRIMARY PROTECTION (OPTIONAL) subscriber lines +θ PTC +θ +θ +θ Typical telephone line showing where PTC thermistors can be used for overcurrent protection. ELECTRICAL DATA AND ORDERING INFORMATION Notes 1. MDF: Main Distribution Frame; C.O.: Central Office Switching; T.E.: Subscriber Terminal Equipment; S.B.: Set-top Box. 2. UL 1434 approved types. V MAX. (V) NON-TRIP CURRENT RESISTANCE MATCHED PAIRS TRIP CURRENT MAX. TRIP TIME at 25 °°°°C APPLICATION AREA(1) COMPATIBILITY CATALOG NUMBER 2322 ... ..... Int (mA) at T (°°°°C) R25 (Ω Ω Ω Ω) TOL (%) It (mA) at T (°°°°C) tt (s) at It (mA) 220 70 70 25 ±20 1 Ω 200 25 2.5 1000 C.O. K20/21 661 93048 230 100 70 10 ±20 1 Ω 250 25 3 1000 MDF; ISDN K20/21 661 93147 245 60 70 70 +10/−15 no 180 25 60 220 C.O. − 661 93025 245 75 70 33 ±20 ±5% 150 10 1.2 1000 C.O. − 661 93037 245 70 70 25 ±15 no 200 25 20 400 C.O. K20/21; FTCSE I31-24 661 93175 245 65 85 25 ±20 2% 200 25 3.40 650 C.O. K20/21 661 93142 245 140 55 16 ±20 no 270 25 8 1000 T.E. K20/21; FTCSE I31-21 662 93081 245 140 55 10 ±20 no 270 25 8 1000 T.E. K20/21; FTCSE I31-21 662 93074 250 100 40 20 +10/−20 1 Ω 220 25 1 1 000 MDF − 661 93118 250 70 70 25 ±20 1 Ω 175 25 1.3 1 000 MDF; C.O. K20/21 661 93148 250 100 70 10 ±20 no 450 0 0.30 8 000 T.E. K20/21 663 93025 285 135 95 8 ±25 0.5 Ω 400 25 6 1000 MDF; ISDN K20/21 661 93078 300 100 70 16 ±25 no 250 25 2.0 1000 MDF; T.E. K20/21 661 93121 350 100 70 10 ±20 no 270 25 4.0 1000 T.E.; S.B. K20/21 661 93124 350 100 70 10 ±20 1 Ω 270 25 4.0 1000 C.O. K20/21 661 93146 600 50 70 50 ±20 1 Ω 140 25 1 1000 C.O. K20/21 661 93135 600 70 70 35 ±20 3 Ω 600 0 3 1000 C.O. K20/21 661 93056 600 70 70 25 ±20 2% 170 25 4 700 C.O. K20/21 661 93139 600 70 70 25 ±20 2% 170 25 8 700 C.O. K20/21 662 93129 600 175 25 10 ±20 0.5 Ω 400 25 7 1000 C.O. UL1459/GR1089 662 93114(2) 600 175 25 10 ±20 no 400 25 7 1000 T.E.; S.B. UL1459/GR1089 662 93131(2) |
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