SMD Schottky Barrier Rectifiers CDBC340H-HF Reverse Voltage: 40 Volts Forward Current: 3.0 Amp RoHS Device Halogen Free DO-214AB (SMC) Features -High surge and current capability. -For use in low voltage, high frequency invertors free -wheeling and polarity protection. 0.126 (3.20) 0.114 (2.90) 0.245 (6.22) 0.220 (5.59) 0.280 (7.11) 0.260 (6.60) -Built-in strain relief. -Silicon epitaxial planar chips. -Metal silicon junction with guard ring. 0.012 (0.30) 0.006 (0.15) Mechanical data 0.103 (2.62) 0.079 (2.00) -Epoxy: UL94-V0 rated flame retardant. -Case: Molded plastic, DO-214AB / SMC -Terminals: Solderable per MIL-STD-750, method 2026. 0.008(0.20) 0.002(0.05) 0.320 (8.13) 0.305 (7.75) 0.060 (1.52) 0.031 (0.78) -Polarity: Color band denotes cathode end. -Mounting Position: Any. Dimensions in inches and (millimeter) -Weight: 0.25 gram (approx.) Maximum Ratings and Electrical Characteristics Ratings at Ta=25°C unless otherwise noted. Symbol CDBC340H-HF Units Max. recurrent peak reverse voltage VRRM 40 V Max. DC blocking voltage VDC 40 V Max. RMS voltage VRMS 28 V Peak forward surge current, 8.3ms single half sine-wave superimposed on rated load (JEDEC method) IFSM 100 A IAV 3.0 A Max. forward voltage at 3.0A (Note 1) VF 0.55 V Max. DC reverse current @TA=25°C at rated DC blocking voltage @TA=100°C IR 0.5 20.0 mA Typical junction capacitance (Note 2) CJ 250 pF RθJA RθJL 55.0 17.0 °C/W Junction temperature range TJ -55 to +150 °C Storage temperature range TSTG -55 to +150 °C Parameter Max. average forward rectified current 0.2x0.2”(5.0x5.0mm) copper pad area, see Fig.1 Typical thermal resistance (Note 3) Notes: 1. Pulse test: 300μs pulse width, 1% duty cycle. 2. Measured at 1.0MHz and applied reverse voltage of 4.0V Volts. 3. Thermal resistance from junction to ambient and from junction to lead P.C.B. mounted on 0.2x0.2”(5.0x5.0mm) copper pad areas. Company reserves the right to improve product design , functions and reliability without notice. REV: A Page 1 QW-JB070 Comchip Technology CO., LTD. SMD Schottky Barrier Rectifiers RATING AND CHARACTERISTIC CURVES (CDBC340H-HF) Fig.2 - Max. Non-repetitive Peak Forward Surge Current Fig.1 - Forward Current Derating Curve 100 Peak Forward Surge Current, (A) Average Forward Current, (A) 5.0 4.0 3.0 2.0 1.0 0 10 1 0 25 75 50 100 125 1 150 10 100 Lead Temperature, (°C) Number of Cycles at 60Hz Fig.3 - Typical Instantaneous Forward Characteristics Fig.4 - Typical Reverse Characteristics 100 Instantaneous Reverse Current, (mA) 10 Instantaneous Forward Current, (A) TL=110°C 8.3ms single half sine wave, JEDEC method 1.0 0.1 10 TJ=125°C 1.0 TJ=100°C 0.1 0.01 TJ=25°C 0.001 0.01 0 0.2 0.4 0.6 0.8 1.0 Instantaneous Forward Voltage, (V) 0 20 40 60 80 100 120 140 Percent of Rated Peak Reverse Voltage, (%) Fig.5 - Typical Junction Capacitance Junction Capacitance, (pF) 1000 100 TJ=25°C f=1.0MHz 10 0.1 1 10 100 Reverse Voltage, (V) Company reserves the right to improve product design , functions and reliability without notice. REV: A Page 2 QW-JB070 Comchip Technology CO., LTD. SMD Schottky Barrier Rectifiers Reel Taping Specification d P0 P1 T E Index hole F W B P C A W1 12 o 0 D2 D1 D W2 Trailer Device ....... ....... End ....... ....... Leader ....... ....... ....... ....... 160mm (min) Start 400mm (min) Direction of Feed SMC SMC SYMBOL A B C d T D D1 D2 (mm) 6.05 8.31 2.54 1.55 0.25 330.0 50.00 Min. 13.50 (inch) 0.238 0.327 0.100 0.061 0.010 13.00 1.969 Min. 0.531 SYMBOL E F P P0 P1 W W1 W2 (mm) 1.75 7.50 8.00 4.00 2.00 16.00 18.40 Max. 22.40 Max. (inch) 0.069 0.295 0.315 0.157 0.079 0.630 0.724 Max. 0.882 Max. Note: The tolerance of carrier tape and top cover is 0.2mm, the tolerance of reel is 2mm. Company reserves the right to improve product design , functions and reliability without notice. REV: A Page 3 QW-JB070 Comchip Technology CO., LTD. SMD Schottky Barrier Rectifiers Marking Code Part Number Marking Code CDBC340H-HF 340 1. 1 : COMCHIP C 5 2. C : SMC Package 2 BXXX 3. B：Schottky Diode 4. XXX: Product type marking code 3 4 5. |||| :Cathod Band Suggested PAD Layout DO-214AB(SMC) E SIZE (mm) (inch) A 3.30 0.130 D B 2.50 0.098 C C 4.40 0.173 D 6.90 0.272 E 9.30 0.366 A B Standard Packaging REEL PACK Case Type DO-214AB (SMC) REEL Reel Size ( pcs ) (inch) 3,000 13 Company reserves the right to improve product design , functions and reliability without notice. REV: A Page 4 QW-JB070 Comchip Technology CO., LTD.