Rev B Description Released for Production ELECTRICAL SPECIFICATIONS @ 25°C L: Isat: Irms: DCR: Hipot: Insulation Class: RoHS Compliant: SCHEMATIC By MIG DIMENSIONS 55μH±15% @ 10kHz, 1Vrms ΔL ≤ 10% @ 25A ΔL ≤ 30% @ 48A ΔT ≤ 20ºC @ 26A ΔT ≤ 40ºC @ 40 A 4.5mΩ Max 500Vdc, 1mA Max, 5s, wdg to core Class H 180ºC Yes Recommended PCB Layout 43.0 Max [1.70] Dummy Pin for Mounting Only Do not connect to ground or other electrical circuits 44.0 Max [1.73] 43.0 Max [1.70] 32.5 Ref [1.28] 20.0 Ref [0.79] 1.2 Ref [0.05] 8.0 Ref [0.31] 44.0 Max 25.0 Ref C L [1.73] [0.98] 8.0 Ref [0.31] 1.8 Ref [0.07] C L MPS HWI4434-040A-550V Date Code 0.50 Typ [0.020] MARKING 36.0 Max [1.42] 0.93 Typ [0.037] 20.0 Typ [0.79] 32.50 Typ [1.28] MPS HWI4434-040A-550V Date Code Date 17-Mar-16 6.35 Typ [0.250] 6.90 Typ [0.272] 25.0 Typ [0.98] 7.00 Typ [0.276] Dimensions: mm/[inch] MPS INDUSTRIES, INC. Notice of Proprietary Property These drawings and specifications are the property of MPS and shall not be, Description reproduced, copied or used as the basis of manufacture of sale of apparatus without express written authorization Dimensions DRAWN BY: MIG 17-Mar-16 SIZE Part Number Unless otherwise specified CHECKED BY: KC 18-Mar-16 .XX ± 0.254mm [.010"] .XXX ± 0,13mm [.005''] A www.mpsind.com Tel: (310) 325-1043 Fax: (310) 325-1044 Helical Wound Inductor HWI4434-040A-550V WEIGHT: 260 gms SHEET: REV 1 OF 2 B Rev B Released for Production Description By MIG Date 17-Mar-16 DC Bias Data: MPS INDUSTRIES, INC. Notice of Proprietary Property These drawings and specifications are the property of MPS and shall not be, reproduced, copied or used as the basis of manufacture of sale of apparatus without express written authorization Dimensions DRAWN BY: MIG 17-Mar-16 Unless otherwise specified CHECKED BY: KC 18-Mar-16 .XX ± 0.254mm [.010"] .XXX ± 0,13mm [.005''] Description SIZE A Part Number www.mpsind.com Tel: (310) 325-1043 Fax: (310) 325-1044 Helical Wound Inductor HWI4434-040A-550V WEIGHT: 260 gms SHEET: REV 2 OF 2 B