Rev B ELECTRICAL SPECIFICATIONS @ 25°C L: Isat: Irms: DCR: Hipot: Insulation Class: RoHS Compliant: SCHEMATIC 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 Description Released for Production By MIG Date 17-Mar-16 DIMENSIONS Recommended PCB Layout 45.0 Max [1.77] 40.0 Max [1.58] 45.0 Max [1.77] MPS HWIA4434-040A-550H Date Code 35.0 Ref [1.38] Dummy Pin for Mounting Only Do not connect to ground or other electrical circuits 1.20 [0.047] C L 8.00 [0.315] 20.00 Ref [0.787] 1.8 Ref [0.07] 40.0 Max [1.58] C L 25.00 Typ [0.984] 8.0 Ref [0.31] 42.5 Typ [1.67] 34.0 Max [1.06] 0.50 Ref [0.020] 6.94 Ref [0.273] 0.94 Ref [0.037] 25.00 Typ [0.984] 42.5 Ref [1.67] MARKING 6.35 Ref [0.250] MPS HWIA4434-040A-550H Date Code 20.00 Ref [0.787] 7.20 [0.283] 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 HWIA4434-040A-550H WEIGHT: 250 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 HWIA4434-040A-550H WEIGHT: 250 gms SHEET: REV 2 OF 2 B