SMD Switching Diode CDSU400B RoHS Device Features 0603/SOD-523F -High Speed -Designed for mounting on small surface. 0.071(1.80) 0.063(1.60) -Extremely thin/leadless package. -Low leakage current. 0.039(1.00) 0.031(0.80) -High mounting capability, strong surge withstand, high reliability. Mechanical data 0.033(0.85) -Case: 0603 /SOD-523F standard package, molded plastic. 0.027(0.70) 0.014(0.35) Typ. -Terminals: Gold plated, solderable per MIL-STD-750, method 2026. 0.012 (0.30) Typ. -Marking Code: Cathode band & S4 0.028(0.70) Typ. -Mounting position: Any. Dimensions in inches and (millimeter) -Weight: 0.003 gram (approx.) Maximum Rating ( at T A = 25 C unless otherwise noted ) Parameter Conditions Repetitive peak reverse voltage Symbol Min Typ Max Unit V RRM 90 V Reverse voltage VR 80 V Average forward current IO 100 mA Forward current , surge peak 8.3 ms single half sine-wave superimposed on rate load ( JEDEC method ) Repetitive peak forward current I FSM 1000 mA I FRM 225 mA PD 150 mW Thermal resistance junction to ambient air R θJA 667 °C/W Storage temperature T STG +125 °C Junction temperature Tj +125 °C Power dissipation -55 Electrical Characteristics ( at T A = 25 C unless otherwise noted ) Parameter Conditions Symbol Min Typ Max Unit Reverse breakdown voltage I R = 50 uA Forward voltage I F = 100 mA VF 1.0 V Reverse current V R = 80 V IR 0.1 uA Capacitance between terminals f = 1MHz, and 0.5VDC reverse voltage CT 3 pF Reverse recovery time V R = 6V, I F = 10 mA, R L =50 ohms Trr 4 nS V BR 80 V REV:B Page 1 QW-A0011 Comchip Technology CO., LTD. SMD Switching Diode RATING AND CHARACTERISTIC CURVES (CDSU400B ) Fig. 1 - Forward characteristics Fig. 2 - Reverse characteristics 1000 10u Reverse current ( A ) 10 -25 °C C 25° °C 125 0.1 C 1 75° Forward current (mA ) 125°C 100 1u 75°C 100n 10n 25°C 1n -25°C 0.1n 0.01 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0 10 20 40 50 60 70 80 90 100 Reverse voltage (V) Forward voltage (V) Fig. 3 - Capacitance between terminals characteristics Fig. 4 - Current derating curve 5.0 f=1MHz Ta = 25 C Mounting on glass epoxy PCBs Average forward current ( % ) Capacitance between terminals : (pF) 30 4.0 3.0 2.0 1.0 100 80 60 40 20 0 0 0 5 10 15 20 25 30 35 0 Reverse voltage : (V) 25 50 75 100 125 150 Ambient temperature ( C) REV:B Page 2 QW-A0011 Comchip Technology CO., LTD. SMD Switching Diode Reel Taping Specification d P0 P1 T E Index hole F W B Polarity P C A 12 o 0 D2 D1 D W1 Trailer ....... ....... End Device ....... ....... Leader ....... ....... ....... ....... 10 pitches (min) Start 10 pitches (min) Direction of Feed 0603 (SOD-523F) 0603 (SOD-523F) SYMBOL A B C d D D1 D2 (mm) 1.00 ± 0.10 1.85 ± 0.10 1.00 ± 0.10 1.55 ± 0.05 178 ± 1 60.0 MIN. 13.0 ± 0.20 (inch) 0.039 ± 0.004 0.073 ± 0.004 0.039 ± 0.004 0.061 ± 0.002 7.008 ± 0.04 2.362 MIN. 0.512 ± 0.008 SYMBOL E F P P0 P1 T W W1 (mm) 1.75 ± 0.10 3.50 ± 0.05 4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.05 0.23 ± 0.05 8.00 ± 0.20 13.5 MAX. (inch) 0.069 ± 0.004 0.138 ± 0.002 0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.004 0.009 ± 0.002 0.315 ± 0.008 0.531 MAX. REV:B Page 3 QW-A0011 Comchip Technology CO., LTD. SMD Switching Diode Marking Code Part Number Marking Code CDSU400B S4 S4 Suggested PAD Layout 0603/SOD-523F SIZE (mm) (inch) 1.70 0.067 A D A B 0.60 0.024 C 0.80 0.031 E C D 2.30 0.091 E 1.10 0.043 B Standard Package Qty per Reel Reel Size (Pcs) (inch) 4000 7 Case Type 0603/SOD-523F REV:B Page 4 QW-A0011 Comchip Technology CO., LTD.