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商品参数
参数完善中
商品详情
产品特点 FEATURES
Model: LHA75F-3R3-Y (Cosel brand), AC-DC open frame power supply with potentiometer (Y option) for ±10% output voltage adjustment
Universal input: 85-264VAC (50/60Hz, 45-66Hz range)
Output specs: 3.3V DC, 12A (max 39.6W), adjustable range 2.85-3.63V
Built-in protections: Inrush current limiting, overcurrent (auto-recover above 105% rating), overvoltage
Safety certifications: UL62368-1, C-UL (CAN/CSA-C22.2 No.62368-1), EN62368-1, DEN-AN compliant
EMC compliance: Conducted noise meets FCC-B, VCCI-B, CISPR11-B/CISPR32-B, EN55011-B/EN55032-B; harmonic attenuator complies with IEC61000-3-2 (Class A)
Efficiency: Up to 87.5% (ACIN 230V, rated load)
Power factor correction: Active filter included
Operating environment: -10 to +70°C (non-condensing 20-90% RH), max altitude 5000m
Physical specs: 50x27x150mm (WxHxD), weight up to 190g (without chassis)
Guarantee: 5 years (refer to instruction manual)
PCB material: FR-4 (1.6mm thickness)
Isolation: Input-output AC3000V (1min), input-FG AC2000V (1min), output-FG AC500V (1min)
Ripple/noise: Max 120mVp-p (0-50°C, rated load)
Start-up time: ~100ms (ACIN100V, full load)
Hold-up time: ~20ms (ACIN100V, full load)
使用场景 APPLICATIONS
Industrial automation equipment (PLCs, sensors)
Embedded systems and single-board computers
Test and measurement instruments
Communication devices (routers, switches)
Medical equipment (non-critical, as per safety approvals)
Consumer electronics (high-end audio, home automation)
Renewable energy monitoring systems
Automotive test benches
注意事项 PRECAUTIONS
PCB handling: Avoid twisting or bending the PCB (SMD components are sensitive to mechanical stress)
Derating: Follow ambient temperature and mounting position derating curves (convection cooling requires more derating than forced air)
Cooling: Use convection or forced air cooling (external fan mandatory for higher loads/temperatures)
Isolation: Use spacers ≥8mm long for PCB isolation; do not use press-fitting bushings
Vibration protection: Prevent the backside of the PCB (with SMDs) from bumping against surfaces
Low load operation: Burst mode activates at low load; measure load regulation using average mode instruments
Prohibited operations: Do not overload, parallelize, or use beyond rated temperature/humidity/altitude limits
End equipment testing: Ensure the final device with this power supply complies with all required EMC/EMI regulations
Mounting: Use appropriate mounting torque (if chassis is used, follow specs) and avoid press-fitting parts
Spare parts: Use recommended mating connectors (JST brand for I/O) to ensure compatibility
LHA75F-3R3-Y
价格：￥288.84
购买数量
个
(1个/盒，最小起订量1个，递增量：1)
总价金额：
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