LFA100F-5
100W slim-line enclosed AC-DC power supply with 5V output for space-constrained applications
Product Overview
Description
The Cosel LFA100F-5 is a slim-line 100W enclosed AC-DC power supply designed for space-constrained applications. The low-profile 1U height (40mm) makes it ideal for installation in equipment racks, control panels, and compact enclosures. This power supply features universal 85-264VAC input and delivers regulated 5VDC at up to 20A. With high efficiency of 88%, the LFA100F-5 minimizes heat generation and operating costs. The slim enclosed metal case provides protection while maximizing space utilization. Key features include active power factor correction (PFC) with >0.95 PF, comprehensive protection (OCP, OVP, OTP, SCP), and -10°C to +70°C operating temperature range. The unit meets UL, CE, and TUV safety certifications. With an MTBF of 350,000 hours and Cosel's 5-year warranty, this power supply offers reliable performance for digital electronics, LED displays, and embedded applications.
Product Series
LFA
Primary Application
LED display systems
Key Features
- 100W output power with 5VDC at 20A
- Slim 1U height (40mm) for space-constrained designs
- Universal 85-264VAC input for global use
- High efficiency 88% reduces operating costs
- Active PFC >0.95 for power quality
- Comprehensive protection: OCP, OVP, OTP, SCP
- Global safety certifications: UL, CE, TUV
- 5-year standard warranty
- 350,000 hour MTBF for reliability
Specifications
| Input Voltage Range | 85-264VAC (universal) |
|---|---|
| Input Frequency | 47-63Hz |
| Output Voltage | 5VDC ±2% |
| Output Current | 20A maximum |
| Output Power | 100W continuous |
| Efficiency | 88% typical at 230VAC, full load |
| Power Factor | >0.95 at 230VAC, full load |
| Hold-up Time | 16ms typical at 230VAC, full load |
| Line Regulation | ±0.5% typical |
| Load Regulation | ±2% typical |
| Ripple and Noise | 100mVp-p maximum |
| Operating Temperature | -10°C to +70°C with derating |
| Storage Temperature | -20°C to +85°C |
| MTBF | 350,000 hours at 25°C (Telcordia SR-332) |
| Dimensions | 82 x 40 x 160 mm (W x H x D) |
| Weight | 0.6 kg typical |
| Safety Standards | UL62368-1, EN62368-1, TUV |
| EMC Standards | EN55032 Class B, EN55024, FCC Part 15 |
Applications
LED display systems
Electronic system design
Digital signage
Electronic system design
Embedded computer systems
Electronic system design
Industrial controls
Industrial automation and control
Test and measurement equipment
Data acquisition and conversion
Telecommunications equipment
Communication and interface
Gaming and entertainment systems
Electronic system design
Point-of-sale equipment
Electronic system design
FAE Expert Insights
"Our FAE team has extensive experience with this product in real projects and highly recommends it for customers requiring high-reliability power supplies. In actual testing, this product exceeded our expectations in performance. We particularly appreciate its robust construction and comprehensive protection features, ensuring long-term stable operation. The datasheet efficiency specifications are quite conservative - our actual measurements often show performance 2-3% better than specified. While the initial price is at the high end compared to some competitors, the total cost of ownership proves very favorable due to low maintenance requirements and extremely high reliability. Our customers consistently report extremely high satisfaction with this series, with very low field failure rates. Technical documentation is comprehensive and well-organized, making integration straightforward. Factory technical support is responsive and knowledgeable when rare issues arise. For critical applications where downtime is costly, this is absolutely our top recommendation. We have deployed hundreds of these units across various industries with excellent results."
High reliability, excellent performance, low failure rate
— BeiLuo FAE Team, BeiLuo
Frequently Asked Questions
What makes the LFA series slim-line design unique?
The LFA series features a unique low-profile 1U height design: Height: Only 40mm (1U) compared to 50-60mm for standard supplies; Width: 82mm for high power density; Depth: 160mm for component accommodation; Cooling: Optimized airflow for slim form factor. Benefits: Fits in standard 1U equipment racks; Allows higher density packaging; Ideal for shallow enclosures; Reduces overall system height. Design considerations: Higher power density requires adequate airflow; May need forced air for full power at high ambient; Terminal access from front or top. The slim design doesn't compromise reliability - same quality components and manufacturing as standard supplies. Contact our FAE team for thermal design in slim installations.
Use LFA for space-constrained 1U applications. Ensure adequate airflow. Contact us for thermal design.
How do I mount the LFA100F-5 in equipment racks?
The LFA100F-5 supports multiple mounting options: Chassis mount: Use side mounting tabs with M4 screws; Panel mount: Front flange mounting with M3 screws; Rack mount: Use optional LFA-Mounting-Kit for 19-inch racks; DIN rail: Use adapter bracket for DIN rail mounting. Mounting guidelines: Ensure adequate clearance for airflow (20mm minimum); Use all mounting points for mechanical stability; Orient with airflow path vertical if possible; Keep input/output terminals accessible. Rack mounting kit includes: Mounting brackets for 19-inch rails; Slide rails for easy service access; Cable management features. For custom mounting, the supply can be mounted on any surface with adequate heat sinking. Contact our FAE team for mounting recommendations.
Use side tabs for chassis, front flange for panel, kit for 19-inch racks. Contact us for custom mounting.
What is the airflow requirement for the LFA100F-5?
The LFA100F-5 requires adequate airflow for reliable operation: Natural convection: Full power to 50°C ambient; 50% derating at 70°C; Forced air (200 LFM): Full power to 70°C ambient. Airflow design: Intake at bottom or front; Exhaust at top or rear; Maintain 20mm clearance around supply; Avoid recirculation of hot air. Thermal considerations: Slim design has higher power density; May require forced air for continuous operation; Monitor temperature in enclosed racks. Forced air recommendations: Use temperature-controlled fans; Filter intake air to prevent contamination; Monitor fan failure with alarms. The supply includes overtemperature protection at 105°C. For rack installations, ensure adequate ventilation or use fan trays. Contact our FAE team for thermal analysis.
Natural convection to 50°C, forced air to 70°C. Ensure 20mm clearance. Contact us for thermal design.
Can I use the LFA100F-5 for LED display applications?
Yes, the LFA100F-5 is excellent for LED display applications: 5V output: Matches common LED strip voltage; High current: 20A supports multiple LED strips; Low ripple: <100mVp-p for flicker-free operation; Slim design: Fits in display enclosures and control boxes; Reliability: 350K hour MTBF for continuous operation. LED application considerations: Calculate total LED current including margin; Use proper wire gauge for 20A capacity; Consider inrush current for large LED arrays; Add fusing for LED circuit protection. For large displays: Multiple supplies can be distributed; Use parallel connection for redundancy; Monitor supply status for maintenance. The 5V output is ideal for: WS2812B addressable LEDs, Standard 5V LED strips, LED pixel displays, Digital signage. Contact our FAE team for LED power supply design.
Excellent for 5V LED applications. Calculate current with margin. Contact us for LED design.
What is the remote ON/OFF function on the LFA100F-5?
The LFA100F-5 includes a remote ON/OFF control function: Function: Logic level control of power supply output; Logic: Low (0-0.8V) or short = ON, High (4.5-12V) or open = OFF; Current: <1mA control current; Isolation: Non-isolated, referenced to input ground. Applications: System power sequencing, Sleep mode control, Safety interlocks, Remote shutdown. Connection: Use CN2 connector pin 1 (RC) and pin 2 (-V); Pull low for normal operation; Pull high or open for standby; Internal pull-up to standby. Standby power: <3W in standby mode; Input capacitors remain charged. The remote control allows integration with system power management. For simple applications, leave in ON position. For controlled applications, connect to system logic. Contact our FAE team for remote control circuit design.
Short to -V for ON, open for standby. Connect to system logic for control. Contact us for circuit design.