Small Signal Switching Diodes CDST-99-G/70-G/56-G Reverse Voltage: 70 Volts Forward Current: 200 mA RoHS Device SOT-23 Features 0.122(3.10) 0.106(2.70) -Design for mounting on small surface. -High speed switching. -High mounting capability, strong surge withstand, high reliability. 3 0.055(1.40) 0.047(1.19) 1 Mechanical data 0.067(1.70) -Case: SOT-23, molded plastic. -Terminals: solderable per MIL-STD-750, method 2026. -Approx. weight: 0.0078 grams 0.010(0.25) 0.003(0.08) Circuit diagram 3 2 0.083(2.10) 3 0.045(1.15) 0.118(3.00) 0.035(0.90) 0.083(2.10) 3 0.005(0.13)max 0.020(0.51) 0.014(0.35) 1 2 1 CDST-99-G 2 CDST-70-G 1 2 0.020(0.50) 0.012(0.30) CDST-56-G Dimensions in inches and (millimeter) Maximum Ratings (at Ta=25°C unless otherwise noted) Parameter Symbol Reverse voltage VR Forward current IF CDST-56-G CDST-70-G CDST-99-G 70 200 Units V 215 mA Peak surge forward current IFSM 500 mA Power dissipation (FR-5 board ) PD 225 mW RθJA 556 °C/W TJ -55 to +150 °C TSTG -55 to +150 °C Thermal resistance, junction to ambient Maximum junction temperature Storage temperature Electrical Characteristics (at Ta=25°C unless otherwise noted) Parameter Reverse breakdown voltage Symbol Conditions VBR IR=100μA Forward voltage VF @IF=1mA @IF=10mA @IF=50mA @IF=150mA Reverse current IR @VR=70V Reverse recovery time trr Diode capacitance CT Min. Max. 70 Units V 0.715 0.855 1.0 1.25 V 2.5 μA IF=IR=10mA, Irr=0.1×IR, RL=100Ω 6 nS VR=0V, f=1.0MHz 2 pF Company reserves the right to improve product design , functions and reliability without notice. REV:F Page 1 QW-B0002 Comchip Technology CO., LTD. Small Signal Switching Diodes RATING AND CHARACTERISTIC CURVES (CDST-99-G/70-G/56-G) Fig.1 - Forward Characteristics Fig.2 - Reverse Characteristics 10μ TA=125°C 1μ 100 Reverse Current, (A) Forward Current, (mA) 1000 TA=150°C TA=-40°C TA=75°C 10 TA=0°C TA=25°C 1 100n TA=75°C TA=25°C 10n TA=0°C 1n 0.1 0 0.5 1.0 0.1n 1.5 0 20 40 60 80 Forward Voltage, (V) Reverse Voltage, (V) Fig.3 - Capacitance Between Terminals Characteristics Fig.4 - Power Derating Curve 2 Mounted on glass epoxy PCBs 1 0 100 300 TJ=25°C f=1MHz Power Dissipation, (mW) Capacitance Between Teminals, (pF) TA=-40°C 0 10 20 30 40 50 200 100 50 0 0 Reverse Voltage, (V) 25 50 75 100 125 150 175 Ambient Temperature, (°C) Company reserves the right to improve product design , functions and reliability without notice. REV:F Page 2 QW-B0002 Comchip Technology CO., LTD. Small Signal Switching Diodes Reel Taping Specification P1 XXX B F E d P0 12 o 0 D2 D1 D W1 SOT-23 SOT-23 SYMBOL A B C d D D1 D2 (mm) 3.15 ± 0.10 2.77 ± 0.10 1.22 ± 0.10 1.50 + 0.10 178 ± 2.00 54.40 ± 1.00 13.00 ± 1.00 (inch) 0.124 ± 0.004 0.109 ± 0.004 0.048 ± 0.004 0.059 + 0.004 7.008 ± 0.079 2.142 ± 0.039 0.512 ± 0.039 SYMBOL E F P P0 P1 W W1 (mm) 1.75 ± 0.10 3.50 ± 0.10 4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.10 8.00 + 0.30 /–0.10 12.30 ± 1.0 (inch) 0.069 ± 0.004 0.138 ± 0.004 0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.004 0.315 + 0.012 /–0.004 0.484 ± 0.039 Company reserves the right to improve product design , functions and reliability without notice. REV:F Page 3 QW-B0002 Comchip Technology CO., LTD. Small Signal Switching Diodes Marking Code 3 Part Number Marking Code CDST-99-G A7 CDST-70-G A4 CDST-56-G A1 XX 1 2 xx = Product type marking code Suggested PAD Layout E SOT-23 SIZE (mm) (inch) A 0.80 0.031 B 1.90 0.075 C 2.02 0.080 D 2.82 0.111 A C D B E 0.80 0.031 Standard Packaging REEL PACK Case Type SOT-23 REEL Reel Size ( pcs ) (inch) 3,000 7 Company reserves the right to improve product design , functions and reliability without notice. REV:F Page 4 QW-B0002 Comchip Technology CO., LTD.