Additional Resources: Product Page PCB Footprint date 12/17/2018 page 1 of 7 SERIES: VFM-50 DESCRIPTION: DC POWER LINE FILTER FEATURES compact high efficiency 98% meet IEC/EN61000-4 standard CISPR22/EN55022 compliant DIP, Chassis and DIN Rail mounting version input voltage protection SPECIFICATIONS parameter conditions/description min typ max units input voltage 18 24 36 Vdc output power 50 W no load input current at 24 Vdc 5 mA efficiency at 24 Vdc, full load 98 % +Vin to GND, -Vin to GND, at 1 minute and isolation voltage 500 Vac leakage current 5 mA max conducted emissions CISPR22/EN55022, 150 kHz ~ 30 MHz class B radiated emissions CISPR22/EN55022, 30 MHz ~ 1 GHz class B ESD IEC/EN61000-4-2, air 8 kV, contact 6kV, class B radiated immunity IEC/EN61000-4-3, 10 V/m, class A EFT/burst IEC/EN61000-4-4, 4 kV(5 kHz, 100 kHz), class B surge IEC/EN61000-4-5, 2 kV (1.2s/50s 2)/4 kV (1.2 s/50 s 12 ), class B conducted immunity IEC/EN61000-4-6, 10 Vr.m.s, class A MTBF as per MIL-HDBK-217F, 40C 1,000,000 hours RoHS yes operating temperature -40 85 C storage temperature -55 125 C storage humidity non-condensing 5 95 % Notes: 1. All specifications are measured at Ta=25C, humidity < 75%, nominal input voltage, and rated load, unless otherwise specified. PART NUMBER KEY VFM-50 - X Base Number Mounting Style: D = board mount T = chassis mount DIN = DIN-rail mount cui.comAdditional Resources: Product Page PCB Footprint CUI Inc SERIES: VFM-50 DESCRIPTION: DC POWER LINE FILTER date 12/17/2018 page 2 of 7 2 SOLDERABILITY parameter conditions/description min typ max units hand soldering for 3~5 seconds 350 360 370 C wave soldering see wave soldering profile 260 C Note: 2. For board mount models only. Peak Temp. 260C Max. Wave Soldering Time 250 4 Sec. Max. 200 10 Sec. Max. 150 100 50 0 Time (sec.) MECHANICAL parameter conditions/description min typ max units board mount: 53.80 x 28.80 x 19.00 2.118 x 1.134 x 0.748 inch mm dimensions chassis mount: 76.00 x 31.50 x 27.80 2.992 x 1.240 x 1.094 inch mm DIN-Rail mount: 76.00 x 31.50 x 32.40 2.992 x 1.240 x 1.276 inch mm case material black flame-retardant heat-proof epoxy resin (UL94V-0) board mount 50 g weight chassis mount 70 g DIN-rail mount 90 g ( ) MECHANICAL DRAWING BOARD MOUNT units: mm inch tolerance: 0.50 0.020 pin diameter tolerance: 0.10 0.004 PIN CONNECTIONS PIN Function 1 GND 2 -Vin 3 +Vin 4 +Vout 5 -Vout Recommended PCB Layout Top View cui.com Temperature (C)