Features
- Universal AC input / Full range AC input
- Short circuit, overload and overvoltage protections
- Cooling by free air convection
- LED indicator for power on
- 100% full load burn-in test
- High reliability, low price and wide range of applications
Specification
Model | CHN-S-50-24 |
Output
| DC Voltage | 24V |
Rated Current | 2.1A |
Current Range | 0 ~ 2.1A |
Rated Power | 50.4W |
Ripple & Noise (Max.)(Note 2) | 100mVp-p |
Voltage Adjust Range | 22.6 ~ 26.4V |
Voltage Tolerance (Note 3) | ±1.0% |
Line Regulation | ±0.5% |
Load Regulation | ±0.5% |
Setup, Rise, Holdup Time | 200ms, 100ms, 30ms |
Input | Voltage Range | 85 ~ 132VAC/170V~260VAC (selected by a switch) or 240 ~ 370V DC |
Frequency Range | 47~63Hz |
Efficiency (Typ.) | 82% |
AC Current (Typ.) | 1.3A/115V AC 0.65A/230V AC |
Inrush Current (Typ.) | Cold start: 18A/115V AC 36A/230V AC |
Leakage Current | <1mA/240V AC |
Protection | Overload | 105~150% rated output power Protection type: Hiccup mode, recovers automatically after fault condition is removed. |
Environment | Working Temperature | -10 ~ +60℃ |
Working Humidity | 20~90% RH non-condensing |
Storage Temperature | -20~+85℃ |
Storage Humidity | 10~95% RH non-condensing |
Temperature Coefficient | ±0.03%/℃ (0~50℃) |
Vibration | 10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes |
Safety & EMC (Note 4) | Safety Standards | UL1012 Approved |
Withstand Voltage | I/P-O/P: 1.5KVAC I/P-FG: 1.5KVAC O/P-FG: 0.5KVAC |
Isolation Resistance | I/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500VDC/25℃/70% RH |
EMC Emission | Compliance to FCC Part 15 Jconduction Class B |
Others | MTBF | ≥408.3K hrs MIN. MIL-HDBK-217F (25℃) |
Dimension | 159*97*38mm (L*W*H) |
Weight | 0.51kg |
Note | 1. All parameters NOT specially mentioned are measured at 230V AC input, rated load and 25°C of ambient temperature. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor. 3. Tolerance includes set up tolerance, line regulation and load regulation. 4. The switching power supply is considered a component which will be installed into final equipment. Please make sure that the final equipment still meets EMC directives. |
Dimension (Unit: mm)


SMPS Power Supply Applications
- Power Tools
Electric Saw, Drilling Machine, Ginder, Sand Blast Machine, Puching Machine, Weeding Machine, Air Compressor, etc. - Offices Devices
Computer, Printer, LCD Monitor, Scanning Machine, etc. - Electrics & Household Appliance
TV, VCRS, Radio, Dust Collector, Fan Lamp or LED Strip, Sewing Machine, Microwave Oven, Fridge/Freezr, Coffemarker, etc. - Industrial Equipemnt
Monitoring Equipment, Shipping, Vehicle, Metalhalide Lamp, Solar System, Wind Power Generation, etc.
Tips: Switching power supply development
The development of switching power supply is high-frequency, high reliability, low consumption, low noise, anti-interference and modularity. The performance of switching power supply in light weight, small size and thickness depends on its high frequency. Upgrading of secondary rectification devices and innovation of power ferrites have improved its magnetic performance in high frequency and field density conditions. In addition, miniaturization of capacitors also serves as a key technology. Extensive use of SMT technology accelerated development of switching power supply. To ensure outstanding performance of witching power supply in weight, size and thickness, electric components are laid out on both sides of the circuit. High frequency of switching power supply requires innovation of PWM. As a result, ZVS and ZCS have been applied to switching power supply as supporting technologies to improve its efficiency.
24V DC 2.1A 50W switching power supply has universal AC input, with short circuit, overload and overvoltage protections, cooling by free air convection. Low price and high quality SMPS power supply suitable for light strips, computers, printers, monitoring system, etc.