05017 CX12 thru CX12LC . . . engineered solutions for the transient environment™ COAXIAL PROTECTOR APPLICATIONS Surgebuster® ✔ High Speed Video Camera ✔ Coaxial Ethernet ✔ High Speed Data Lines IEC COMPATIBILITY (EN61000-4) ✔ 61000-4-5 (Surge): 24A, 8/20µs - Level 2(Line-Gnd) & Level 3(Line-Line) FEATURES ✔ Meets IEC 1000-4-5 Industry Requirements ✔ BNC Connection ✔ Low Capacitance ✔ Completely Enclosed Aluminum Housing ✔ Low Clamping Voltage ✔ Nanosecond Response Time ✔ Long Life and Maintenance Free ✔ Finger Safe Connectors CX12 PACKAGE FIGURE 1 TRANSIENT VOLTAGETHREAT CONDITION MECHANICAL CHARACTERISTICS 2K Current - Amperes ✔ Metal Package ✔ Weight 161 Grams (Approximate) ✔ Device Marking: Part Number, Logo DESCRIPTION The CX12 series is a two stage, hybrid surge protector designed to protect interfacing equipment from induced lightning or switching transients. The multistage technique has proven to be the most cost effective and reliable method for protecting sensitive electronic equipment. Employing state-of-the-art avalanche junction diode technology, these devices provide superior performance for video, Ethernet, Token Ring or other LAN interface systems. They are in-line modules with easy interconnecting terminals. A completely enclosed aluminum housing provides EMC shielding to meet industry standard requirements. The enclosure has two female BNC type connections for easy installation. The case is ground for those installations that require external ground connections. FIGURE 3 LINEAR VS NON-LINEAR CAPACITANCE 100 ProTek’s CX12LC 20 40 60 80 Time µs 100 120 140 160 FIGURE 2 CX 12LC CLAMPING VOLTAGE 120 10 0 1 2 3 4 5 V(OP) - Circuit Operating - Volts tf 100 Peak Value IPP 80 e-t Test Waveform Parameters tf = 8µs td = 20µs 60 40 td = t 20 0 IPP/2 30 20 10 0 0 0 5 10 15 20 25 30 20 40 60 80 100 120 140 Time µs 160 t - Time - µs Figure 1 and 2 are photographs of digitized waveforms showing a typical transient voltage and the clamping action of the CX12LC module. The device was subjected to a 2000A, 8/20µs impulse waveform in accordance with ANSI C62.36. The CX12 has an operating frequency range up to 10MHz and the CX12LC up to 100MHz. Figure 3 shows a comparison of capacitance between a industrial standard device (Top Line) and the ProTek Device CX12LC (Bottom Line). Due to the drastic change in the capacitance of the product (Top Line), signal distortion, loss of data or even access into the computer may be a problem. 05017.R2 7/02 0 Current - Amperes Industry Standard Low Capacitance Solid State Protector 0 FIGURE 4 PULSE WAVE FORM IPP - Peak Pulse Current - % of IPP C - TVS Capacitance - pF 1000 1K 1 www.protekdevices.com CX12 and CX12LC DEVICE CHARACTERISTICS MAXIMUM RATINGS @ 25°C Peak Operating Line Voltage (V OP ) Operating Line Current (I O ) Maximum Transient Voltage Maximum Transient Current Maximum Leakage Current CX12 Frequency Responce -3 dB CX12LC Frequency Responce -3 dB Operating & Storage Temperature Response Time ELECTRICAL CHARACTERISTICS @ 25°C ±12 V 200mA 20kV 3000A (8/20µs) 5µA @ 30MHz @ 200MHz -40° to +85°C < 10 ns PROTEK PART NUMBER MAXIMUM CLAMPING VOLTAGE * Line-Ground 500A @ 8/20 ms VC MAXIMUM LINE THRUPUT RESISTANCE TYPICAL CAPACITANCE R C @ 0 V, 1 MHz VOLTS OHMS pF 24 28 3 10 200 25 CX12 CX12LC * Other Voltages Available Consult Factory Frequency Responce CX12 1.21” (30.73 mm) 1.10” (27.94 mm) 1.40” (35.56 mm) 1.10” (27.54 mm) 0.15” (3.81mm) 0.72” (18.29 mm) CX12 COAXIAL LINE PROTECTOR CX 12 - COAXIAL LINE PROTECTOR CAUTION: Mounting plate must be Mounting plate must CAUTION: connectedtoto earth ground be connected earth ground 2.95” (74.93 mm) 3.25” (82.55 mm) 0.150” DIA. (3.81 mm) Mounting Holes LINE Frequency Responce CX12LC 2.25” (57.15 mm) EQUIPMENT INSTALLATION 05017.R2 7/02 2 0.70”(17.78 mm) The CX12 series is designed with a female BNC type connector on both ends for easy installation. Disconnect the video or data line from the sensitive equipment. Insert the CX12 in the line near the AC power outlet of the equipment to be protected. Install a cable in between the CX12 and the equipment to be protected. Attach a ground wire between the case of the CX12 and the equipment AC power ground, or to the coax shield as required. 0.72” (18.29 mm) www.protekdevices.com