SM1820B – SWITCHMODE 18V 2A BARE WIRE

18V DC Power Supply for Aiphone

General

• Weight: 295.5g
• Automatic recovery when removal of protect condition

Input

• Rated input voltage: 100-240V AC
• Vibration input voltage range: 90-264V AC
• Rated input frequency: 60/​50Hz
• Vibration Rate input frequency: 63/​47Hz
• AC input Rated current: 1A Max. @100V AC
• AC input Max power (No load): 0.3W Max. @230V AC
• Inrush Current: 30A Max. @100VAC cool start
• 60A Max. @230VAC cool start
• Leakage current: 0.25mA Max

Output characteristics

• Rating output voltage: 18V
• Rating output current: 2A
• Min. load current 0A
• Output no load voltage: 18V±5%
• Output load voltage: 18V±5%
• Output ripple & noise: 200mV

General characteristics

• Max output power: 36Watts
• Efficiency measurement: 84% (min.) @full load & input 230VAC, Output set to18V/​2A.
• For production testing: 84% (min.) @full load & input 115VAC, Output set to18V/​2A.
• Efficiency: 84.78% (Min.) at 115Vac 60Hz and 230Vac 50Hz input, and 25%, 50%,75%, 100% of full load after 20minutes warn-up.
• Short circuit protection: No damage when output is shorted to GND. And after short circuit, auto restart.
• Overshoot/​Undershoot: 18V±10%
• Switching Frequency: 60 KHz Typical
• Any protect condition shall cause no damage and no component fail.

Environmental

• Operation temperature: 0~40C
• Storage temperature: -25C to 85C
• Operating relative humidity: 8% to 90%
• Storage relative humidity: 5% to 96%

Reliability

• MTBF: 50k hours min. @ full load at 25C ambient temperature
• Burn-in: 24hrs 40±5C 240VAC ON/​OFF cycle full load nominal line.
• Altitude: Will operate properly at altitude between0 to 10000ft.

Where to attach postive

on the tracer wire