OBP38 Series
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Features 4 x 7 inch footprint with 1.58 inch low profile 100-240 VAC input with active PFC 300 watt convection rating up to +50°C 400 watt output with 7 CFM forced air Standby output 5VDC at 100mA EN55022 Class B conducted emissions Inhibit - TTL low to disable output Standard PS Off and DC OK signals Efficiency greater than 88% Compliant with RoHS requirements Output Power See table. Voltage/current See table. Ripple and noise 1% peak to peak maximum. Remote sense Compensation for cable losses up to 0.5V. Over voltage protection Set at 115-140% of its nominal output voltage. Over current protection Protected to output short circuit conditions. Thermal shutdown Protected to overtemperature conditions. Temperature coefficient ±0.04%/°C max. Transient response Max excursion of 4% or better on all models, recovering to 1% of final value within 500us after a 25% step load change. Standby power 5 V at 100 mA maximum. Enviromental Operating temperature -10°C to +70°C. Storage temperature -40°C to +85°C. Relative humidity 5-95% non-condensing. Derating Derate from 100% at +50°C linearly to 50% at +70°C, applicable to convection and forced-air cooling conditions. POWERBOX ndustrial Line 400 OBP38 Series 400W Single Output AC/DC Switch Mode Power Supply General Switching frequency 85KHz typical. Line regulation ±0.5% max at full load. cold start. Withstand voltage 3,000VAC from input to output. 1,500VAC from input to ground. 500VAC from output to ground. MTBF 350,000 hours at full load at 25°C ambient, Interface Signals PFD TTL high for normal operation, low upon loss of input power, turn-on delay time 100-500 ms, turn-off delay time 5 ms minimum. Inhibit TTL low to turn off output. DC OK TTL high when output voltage >95%. PS OFF TTL high to turn off output. Standards Safety standardsUL60950-1, CSA C22.2 No 60950-1, TUV EN60950-1. EMC performance EN55022 Class B conducted, Class B radiated. FCC Class B conducted, Class A radiated. VCCI Class B conducted, Class A radiated. EN61000-3-2 Harmonic distortion Class A and D. EN6100-4-8 Magnetic field immunity, 1A/m. EN61000-4-11 Voltage dips, 30% reduction for 500ms,

POWERBOX ndustrial Line 400 OBP38 Series 400W Single Output AC/DC Switch Mode Power Supply Output Min Max Current Max Current Tol Efficiency (typical) Ripple & Max Output @300W @400W 1. Change suffix “B” for U-Bracket form to “C” for enclosed form with cover-and-fan assembly, e.g. OBP38046C. 2. 300 W without moving air or 400 W with 7 CFM forced air provided by user for “B” version, 400 W for “C” version with cover-and-fan assembly 3. Ripple and noise is maximum peak-to-peak voltage value measured at output within 20 MHz band-width, at rated line voltage and output load...

POWERBOX ndustrial Line 400 OBP38 Series 400W Single Output AC/DC Switch Mode Power Supply Mechanical EnclosedForm 1. Dimensions shown in inches [mm] 3. Input connector P1 is Dinkle terminal P/N DT-35-B01W-03, with nickel plated M3 screws. 5. Connector P4: Molex header 87833-08 or equivalent, mating with Molex housing 51110-0850 or equivalent. 6. Fan connector P5: JST header S2B-ZR-3.4 or equivalent, mating with JST housing ZHR-2 or equivalent. 7. Weight: 1.0 Kg (2.23 lbs.) approx. for U-bracket form, 1.14 Kg (2.52 lbs.) approx. for enclosed form. 8. Maximum penetration depth of fixing...