international safety standard approvals vde0805/en60950/iec950/iec1010 file no. 10401-3336-1036 licence no. 1485, 1650 ul1950 file no. e136005 csa c22.2 no. 950 file no. lr41062c certificate no. ps/603173 nfs42 series triple output [ 2 year warranty ] ? 6.3 x 3.9 x 1.5 package (1u applications) ? overvoltage and short circuit protection ? 40w with free air convection ? en55022, en55011 conducted emissions level b ? ul, vde, csa and babt safety approvals the nfs42 series is a 40w universal input ac/dc power supply on a 6.3 x 3.9 inch card with a maximum component height of 1.5 inches for use in 1u applications. the nfs42 series is available in three standard models with a lower component count and larger footprint than most standard 40w models to ensure greater reliability. the nfs42 provides 40w of output power with free air convection cooling which can be boosted to 50w with 20cfm of air. standard features include overvoltage and short circuit protection. the series, with full international safety approval and the ce mark, meets conducted emissions en55022 level b. the nfs42 series is designed for use in low power telecom and industrial applications such as pabx's, industrial pc's and machine control. specification all specifications are typical for 110vac input, 40 watts output at 25 c unless otherwise stated page 1 output specifications line regulation main output (output 1) 1.0% ll to hl, fl output 2 1.0% output 3 0.1% total regulation main output (output 1) 3.0% (see note 5) output 2 5.0% output 3 5.0% overshoot/undershoot at turn-on 0% transient response +5v (1.5a to 3a) 500mv max. dev., 500s recovery temperature coefficient all outputs 0.03%/c, max. overvoltage protection +5v output 6.25v 0.75v output power limit primary power 75w input power limit limited 50w output power limit short circuit protection yes, with auto-restart minimum output current (see note 8) 4 watts input specifications input voltage range universal input 85 to 264vac 120 to 370vdc input frequency range 47 to 440hz maximum input 110vac, cold start 7.5a surge current 230vac, cold start 15a safety ground 110vac, 60hz 0.66ma max. leakage current 230vac, 50hz 1.2ma max. emc characteristics conducted emissions en55022, fcc part 15 level b radiated emissions en55022, fcc part 15 level b esd air en61000-4-2, level 3 perf. criteria 2 esd contact en61000-4-2, level 4 perf. criteria 1 surge en61000-4-5, level 3 perf. criteria 1 fast transients en61000-4-4, level 3 perf. criteria 1 radiated immunity en61000-4-3, level 3 perf. criteria 2 conducted immunity en61000-4-6, level 3 perf. criteria 1 general specifications hold-up time 110vac input 16ms 230vac input 100ms efficiency 110/230vac input, 70% typical 40w output 65% min. isolation voltage input/output 3000vac input/chassis 1500vac switching frequency variable 20khz, min. approvals and vde0805, en60950, iec950 standards iec1010, ul1950, babt (see note 10) csa c22.2 no. 950 weight 400g (14oz) mtbf (see note 8) mil-hdbk-217e, 25c 230,000 hours environmental specifications thermal performance 0c to 50c ambient, 40w (see notes 6, 7) convection cooled 0c to 50c ambient, 50w 20cfm forced air 50c to 70c ambient derate linearly to 50% load peak (0c to 50c, max. 30s) 50w operating range, 0c to +70c see derating curve non-operating -40c to +85c relative humidity non-condensing 5% to 95% rh altitude operating 10,000 feet max. non-operating 30,000 feet max. vibration (see note 9) 5hz to 500hz 2.4g rms approx.
notes 1 convection cooled, maximum 40w output power. 2 peak outputs lasting less than 30 seconds with duty factor less than 10%. during peak loading, output may go outside total regulation limits. maximum output power during peak loading is 50w. 3 forced air, 20 cfm at 1 atmosphere. total power out, 50w maximum. 4 figure is peak-to-peak. output noise measurements are across a 50mhz bandwidth made using a 12 inch twisted pair, terminated with a 47f capacitor. 5 total regulation is defined as the static output regulation at 25c, including initial tolerance, line voltage within stated limits and output voltages adjusted to their factory settings. also, for stated regulation: nfs42-7608 : 0.25 x 5 i a nfs42-7627 : 0.50 x 12 where x = NFS42-7610 : 0.30 x 12 i b 6 derating curve is application specific for ambient temperatures >50c, for optimum reliability no part of the heatsink should exceed 110 o c and no semiconductor case temperature should exceed 115 o c. 7 caution: allow a minimum of 1 second after disconnecting the power when making thermal measurements. 8 artesyn technologies recommends a minimum load of 4 watts to achieve the design mtbf. 9 three orthogonal axes, random vibration, 10 minute test for each axis. 10 this product is only for inclusion by professional installers within other equipment and must not be operated as a stand alone product. all dimensions in inches (mm) maximum component height is 1.50 (38.10 mm) 3.15 (80.01) 0.40 (10.16) 4.80 (121.92) 3.90 (99.06) 0.75 (19.05) 6.30 (160.02) j2 j3 j4 j1 e1 0.156 (3.962) dia. 4 places pin 1 pin 1 pin 1 1 2 0 c 10 c 20 c 30 c 40 c 50 c 60 c 70 c 20w 40w derating curve (see notes 6, 7, 8) output power (watts) 4w min. load required to achieve design mtbf 50w 4w 20 cfm forced air cooling 25w
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