QLF12 12W High Quality AC-DC Switch power modules
Product features：
- Fixed mounting holes are arranged at the four corners to prevent the product from power failure due to movement/vibration. The straight length of the fixed holes is 4 mm.
- International Universalinput voltage: 85-264V AC or 110-370V DC.
- High efficiency, highpower density, low output ripple noise
- High isolation between input and output
- Over current protection, shortcircuit protection and temperature protection.
- Output built-infilter without external filter circuit.
- 3 years of quality assurance.
| Item | Condition | Common models of this series we have (we can customize any products with different output voltage and current or other requirements according to customer’s requirements) | ||||
| QLF12A-05 | QLF12A-09 | QLF12A- 12 | QLF12A- 15 | QLF12A-24 | ||
| 1、Input Features | ||||||
| AC Input(VAC) | 85-264VAC | |||||
| DC Input(VDC) | 110-370VDC | |||||
| Frequency Range(Hz) | 47-63Hz | |||||
| Input Current(mA) | 0.5/ 115VAC 0.25/230VAC | |||||
| Surge current(A) | Cold Boot：10A/230VAC | |||||
| Efficiency(TYP.) | 75% | 76% | 78% | 78% | 81% | |
| Stand-by power consumption(mW) | ≤ 150mW/230VAC | |||||
| 2 、Output Features | ||||||
| Output Voltage(VDC) | 5V | 9V | 12V | 15V | 24V | |
| Output voltage accuracy | ± 1% | |||||
| Rated current(ADC) | 2A | 1.35A | 1A | 0.8A | 0.5A | |
| Rated power(W) | 10W | 12W | 12W | 12W | 12W | |
| Ripple&Noise(mv p-p) | Rated input voltage, 20MHz bandwidth | ≤ 100mV | ||||
| Linear adjustment rate | Full-load | ± 1% | ||||
| Load regulation | 10- 100% Load | ±3% | ||||
| Start up and rise time | Full-load | 2000ms ，30ms/ 115VAC 1000ms ，30ms/230VAC | ||||
| Retention time(ms) | Full-load | 16ms/ 115VAC 50ms/230VAC | ||||
| Overload protection | Rated input voltage | 115%- 150% of the rated output power | ||||
| Protection mode: hiccup mode, auto-response after removal of abnormal | ||||||
| Short-circuit protection | Rated input voltage | Automatic recovery after long-term short circuit |
| Over-current protection | ≥ 1. 1 Times Io | |
| Start delay time(ms) | Vin ：230VAC | 500ms |
| Power-off protection time(ms) | 20ms | |
| 3 、General Features | ||
| Working temperature(C) | / | -30-70C |
| Working humidity(RH) | / | 20-90%RH ，non-condensing |
| temperature coefficient | / | ±0.02%/C |
| Storage temperature and humidity | -40~+85C 10-95%RH | |
| Switching frequency(KHz) | 20-65KHz | |
| Isolation voltage(VAC) | Input-to-output, test lasted 60s ，≤ 5mA | 3000VAC |
| Insulation resistance(MΩ) | Input-to-output，500VDC | 100MΩ |
| Leakage current(mA) | 500VDC | Input to output ≤ 1mA/RMS |
| MTBF | @25C | 215000h |
| Safety level | / | Adaptation：CLASS B |
| Vibration resistance | / | 10—500Hz 2G 10 minutes/cycle. 60 minutes each for X, Y and Z. |
| Electro-magnetic compatibility | / | Adaptation：EN55022(CISPR22) Class B EN61000-3-2-3 |
| Remarks |
| |
Output Parts：
| Output Voltage | C1 | C2 | TVS |
| 5V | 47uF/35V | 1uF/50V | SMBJ7.0A |
| 9V | SMBJ12.0A | ||
| 12V | SMBJ15A | ||
| 15V | SMBJ18.0A | ||
| 24V | SMBJ28A |
Remarks：
- C1：Connecting/couplingfilter electrolytic capacitors, high frequency and low resistance capacitors are recommended. Capacitance withstand voltage drop more than 75%, remove noise caused by connectors.
- C2：Removinghigh frequency noise for Ceramic capacitors
- TVS：Itis recommended to protect the back-stage circuit when the power supply is abnormal.
EMC Solution–Recommended Circuit
Input Parts：
| Original Bit Number/Recommended Device | Effects | Recommended values |
| R1：Discharge resistance | Suppression of differential mode interference | 1MΩ 1/2W |
| C5：X2 Capacitance | 0.33uF/275VAC | |
| NF：common mode choke | Common mode interference is suppressed to improve the anti-interference ability of equipment and the reliability of the system. | 10 mH -30 mH |
Product Packaging and Pin Definition Diagram
Product selection and Notes：
- Please refer to the specifications in detail for selection and use, otherwise the reliability of power supply will not be guaranteed.
- All parameters of this specification are measured according to the internal standards of our company.
- It is suggested that the load power of the power supply should not exceed 80% of the rated power of the power supply.
- With multi-output power supply, each output circuit must be loaded and used at the same time according to the corresponding ratio.
- Our company can provide customized products.
- SAN QINXPOWER-model listWe reserve the right to change specifications without prior notice.
