E_UHB-1W

The E_UHB-1W is certified for medical applications with 2xMOPP (Means Of Patient Protection) per IEC 60601-1 3rd edition. The 3000V isolation barrier meets requirements for patient-connected medical equipment. Certifications include: UL 60601-1 3rd edition, EN 60601-1 3rd edition, IEC 60601-1 3rd edition, and CB test certificates. The module is suitable for BF (Body Floating) and CF (Cardiac Floating) type patient connections when properly implemented in the system design.

For medical equipment requiring patient isolation, verify the specific MOPP requirements and contact FAE for implementation guidance.

Select input voltage range based on your input source: For regulated 5V systems (4.5-5.5V): Use 5V input model; For 12V battery or industrial 12V bus (9-18V): Use 12V input model; For 24V battery or industrial 24V bus (18-36V): Use 24V input model; For 48V telecom or industrial bus (36-75V): Use 48V input model. The ultra-wide 4:1 range accommodates voltage variations including battery discharge curves and unregulated bus voltages. Always verify the input voltage never exceeds the maximum rating under any operating condition.

Measure your actual input voltage range including minimum (discharged battery) and maximum (charging/transient) conditions before selecting.

The E_UHB-1W output ripple and noise is typically 50-100mV peak-to-peak at nominal input and full load, measured with 20MHz bandwidth. Ripple characteristics: Switching ripple at 100kHz fundamental frequency; Noise spikes during switching transitions; Lower ripple at lighter loads. For sensitive applications requiring lower ripple: Add additional output filtering capacitor (10-47uF low-ESR ceramic); Use LC filter (10uH + 100uF) for <10mV ripple requirements; Consider regulated output models if ripple is critical.

For ripple-sensitive loads, implement additional filtering. Contact FAE for filter design recommendations.

Yes, E_UHB-1W can operate with no load (0% load) to full load (100% load) without damage. However, unregulated converters like E_UHB-1W exhibit output voltage rise at light loads: At 100% load: Nominal output voltage; At 50% load: Output may rise 5-10%; At 10% load: Output may rise 10-20%; At no load: Output may rise 20-30% above nominal. This is normal behavior for unregulated converters. For applications requiring tight voltage regulation at light loads, consider regulated output models or add a minimum load resistor (10% of rated load).

For applications with widely varying loads, consider regulated output models or implement minimum load requirements.

The E_UHB-1W has an MTBF (Mean Time Between Failures) exceeding 1,000,000 hours at 25C ambient, calculated per Telcordia SR-332 or MIL-HDBK-217F standards. Expected operational lifetime is 10-15 years under normal operating conditions. Reliability is ensured through: High-quality components with derating; Thermal design optimization; Comprehensive burn-in testing; Protective coatings for harsh environments. For mission-critical applications, enhanced screening and extended warranty options are available.

For high-reliability applications, consider enhanced screening and extended warranty options.

Thermal management for E_UHB-1W: At full load (1W output) with 82% efficiency, power dissipation is approximately 0.22W. Natural convection is sufficient for most applications. For high ambient temperatures (>70C) or confined spaces: Provide adequate airflow (200 LFM minimum); Use thermal vias under the module to spread heat; Mount module away from other heat sources; Consider derating at high temperatures per datasheet curve. The module includes overtemperature protection that shuts down output if internal temperature exceeds safe limits.

For most applications, natural convection is sufficient. For high-temperature environments, implement airflow or thermal management.