485ELC HIGH SPEED ETHERNET DATA LINE PROTECTOR
●DESCRIPTION
■The 485ELC is low capacitance, two-stage transient voltage protector the provides primary and secondary protection against lightning, inductive switching and electrostatic discharge (ESD) transient threats. The first stage diverts the transient current through the ground terminal return path and the second stage clamps the voltage to a safe level without interruption of service.
■The 485ELC is designed to protect data lines, transmission lines, timing and control interface circuits from common-mode (line-to-ground) or differential (line-line) transients. Terminals 1 & 2 and 3 & 4 are designed as line pairs. A transient voltage suppressor is connected across each line pair for differential mode protection.
■Capacitance over the operating voltage range is important. If capacitance is non-linear, distortion, loss of data or ac-cess to the I/O port can occur (See Figure 1).
●FEATURES
■Compatible with IEC 61000-4-2 (ESD): Air - 15kV, Contact - 8kV
■Compatible with IEC 61000-4-4 (EFT): 40A - 5/50ns
■Compatible with IEC 61000-4-5 (Surge): 95A, 8/20μs, Level 4 (Line-Gnd) & 48A, Level 4 (Line-Line)
■Low Capacitance - 25pF
■Designed for EIA Standard RS-485 Data Lines
■Permanent Two-Stage 2 Line Pair Protector
■Subnanosecond Response Time
■Common & Differential Mode Protection
■Automatic Reset - Does Not Interrupt Service
■Effective Against Lightning, Inductive Switching and ESD
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HIGH SPEED ETHERNET DATA LINE PROTECTOR 、 low capacitance, two-stage transient voltage protector |
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[ Ethernet ][ Catagory 5 Systems ][ RS-485 Serial Communication Lines ][ ISDN Equipment ][ ISDN Systems ][ Video Transmission Systems ][ Smoke Detector & Fire Alarm Systems ] |
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Datasheet |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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9/12 |
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R5 |
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05039 |
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415 KB |
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