1 RS232 Port Protection Solution Use surface mount component HUAAN LIMITED ▼Solution1(RS232): Surge level: IEC61000-4-5 10/700us: 4KV 1.2/50us-8/20us: 4KV-1KA Specification................................................................................................................................................................................ DC Spark-over Voltage @ 100V/S Impulse Spark-over Voltage Surge Absorber V V JSE-301M-SMB 300±20% Part Number Part Number Impulse discharge current(8/20μs) Surge Life Test 10/700us Capacitance (1KHz) mΩ 10 Times 10times PF >100 1000A 4KV,100A ≤1 @1KV/μs ≤ 600 I max Ih Rmax V A A JK-mSMD014 60 100 0.14 Part Number Vbr Ir Vrwm Ipp 10/1000us Vc V uA V A V 16.7-18.5 800 15 24.6 24.4 PTC SMBJ15CA Vmax Insulation Resistance Rmin Pd Ω Ω w 6 0.65 0.8 Package SMB Application product(Video server, access controller ,Electricity meter ,Water meter,optical transmitter and receiver....etc ): 2 RS485 Port Protection Solution Use DIP component HUAAN LIMITED ▼Solution 2(RS485): Surge level: IEC61000-4-5 10/700us:4KV 1.2/50us-8/20us: 4KV-1KA Specification........................................................................................................................................................................ DC Spark-over Voltage @ 100V/S Impulse Spark-over Voltage Surge Absorber V V JSE-301M-2643 300±20% Part Number Part Number PTC JK250120U Vmax Insulation Resistance Impulse discharge mΩ 10 Times current(8/20μs) Surge Life Test 10/700us Capacitance (1KHz) @1KV/μs ≤ 600 >100 1KA I max Ih V A A 250 10 0.12 PF 4KV Rmax ≤1 Rmin Pd Ω Ω w 11 6 0.8 Part Number Vbr Ir Vrwm Ipp 10/1000us Vc TVS V uA V A V P6KE18CA 17.1-18.9 5 15.3 24.2 25.2 Package DO-15 Application product(Video server, access controller ,Electricity meter ,Water meter,optical transmitter and receiver....etc ): A friendly reminder: Any surface mount component and DIP component can alternative use, ( For example: JSE-301M-SMB = JSE-301M-2643 , JK250120U = JK-mSMD014 , P6KE18CA = SMBJ15CA) (So You can also use: JSE-301M-2643 + JK250120U + SMBJ15CA, JSE-301M-SMB+ JK250120U+ P6KE18CA ...ETC) Statement: These solution is only for reference, The final solution will be based on the actual test results, HUAAN LIMITED will have t explanation. [email protected] [email protected] www.huaandz.com Tel:+86-755-27465585 2 HUAAN LIMITED