SMD Switching Diode SMD Diodes Specialist CDSQR4148 (RoHS Device) High Speed Features 0402(1005) Designed for mounting on small surface. 0.041(1.05) 0.037(0.95) Extremely thin/leadless package. High mounting capability, strong surge withstand, high reliability. 0.026(0.65) 0.022(0.55) Mechanical data Case: 0402(1005) standard package, molded plastic. 0.022(0.55) 0.018(0.45) Terminals: Gold plated, solderable per MIL-STD-750,method 2026. 0.012(0.30) Typ. Marking Code: Cathode band & S3 Mounting position: Any Weight: 0.001 gram(approx.). 0.020(0.50) Typ. Dimensions in inches and (millimeter) Maximum Rating (at T A =25 C unless otherwise noted) O Parameter Conditions Symbol Min Typ Max Unit Repetitive peak reverse voltage V RRM 100 V Reverse voltage VR 75 V Average forward current IO 150 mA Forward current,surge peak T P = 1uS 4 I FSM T P = 1mS Repetitive peak forward current Power Dissipation A 1 I FRM 300 mA PD 125 mW Storage temperature T STG Junction temperature Tj -40 +125 O +125 O C C Electrical Characteristics (at T A =25 C unless otherwise noted) O Parameter Conditions Symbol Min Typ Max Unit Forward voltage I F = 50 mA DC VF 1.0 V Reverse current V R = 20 V V R = 75 V IR 25 2.5 nA uA Capacitance between terminals f = 1 MH Z ,and 0VDC reverse voltage CT 4 PF Reverse recovery time I F = I R = 10 mA, R L =100 ohms, I rr = 1mA T rr 4 nS REV:A Page 1 QW-A0034 Comchip Technology CO., LTD. SMD Switching Diode SMD Diodes Specialist RATING AND CHARACTERISTIC CURVES (CDSQR4148) Fig. 1 - Forward characteristics Fig. 2 - Reverse characteristics 1000 10u O Reverse current ( A ) 100 10 O 25 C O C O 125 0.1 C -25 O C 1 75 Forward current (mA ) 125 C 1u O 75 C 100n 10n O 25 C 1n O -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 O 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:A Page 2 QW-A0034 Comchip Technology CO., LTD. SMD Switching Diode SMD Diodes Specialist 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 Device ....... ....... End ....... ....... Leader ....... ....... ....... ....... 10 pitches (min) Start 10 pitches (min) Direction of Feed QR/0402 QR/0402 SYMBOL A B C d D D1 D2 (mm) 0.80 0.10 1.30 0.10 0.55 0.10 1.55 + 0.10 178 1 60.0 MIN. 13.0 0.20 (inch) 0.031 0.004 0.051 0.004 0.022 0.004 0.061 + 0.004 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 0.10 0.22 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:A Page 3 QW-A0034 Comchip Technology CO., LTD. SMD Switching Diode SMD Diodes Specialist Marking Code Park Number Marking Code CDSQR4148 S3 S3 Suggested PAD Layout QR/0402 SIZE (mm) (inch) A 0.750 0.030 B 0.500 0.020 C 0.700 0.028 D 1.250 0.049 E 0.250 0.010 D A E C B Standard Package Qty per Reel Reel Size (Pcs) (inch) 5000 7 Case Type QR/0402 REV:A Page 4 QW-A0034 Comchip Technology CO., LTD.