SB43-B THRU SB44-B SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER VOLTAGE:30 TO 40V CURRENT: 4.0A FEATURE SMB/DO--214AA Plastic package has Underwriters Laboratory Flammability Classification 94V-0 For surface mounted applications Low profile package Built-in strain relief Low power loss, high efficiency High current capability, low forward voltage drop High surge capability For use in low voltage high frequency inverters, free wheeling, and polarity protection applications Guarding for over voltage protection MECHANICAL DATA Case: JEDEC DO-214AB molded plastic body Terminals: Solder plated, solderable per MIL-STD-750, Method 2026 High temperature soldering guaranteed: 250ºC /10 seconds at terminals Polarity: Color band denotes cathode end Weight: 0.003 ounce, 0.093gram Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS (single-phase, half-wave, 60HZ, resistive or inductive load rating at 25ºC, unless otherwise stated, for capacitive load, derate current by 20%) SYMBOL Device marking code Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC blocking Voltage Maximum Average Forward Rectified Current 3/8’lead length at TL (See Fig.1) Peak Forward Surge Current 8.3ms single half sine-wave superimposed on rated load Maximum Forward Voltage at rated Forward current at 4.0A TJ =25ºC (Note 1) Maximum DC Reverse Current at rated DC blocking voltage Typical Thermal Resistance TJ =25ºC TJ =125ºC (Note 2) Storage and Operating Temperature Range Vrrm Vrms Vdc SB43-B SB43 30 21 30 SB44-B SB44 40 28 40 units V V V If(av) 4.0 A Ifsm 100.0 A Vf 0.50 V Ir 0.6 0.5 45 40 mA R(ja) R(jl) 70.0 23.0 ºC /W Tstg -50 to +150 ºC NOTES: (1) Pulse test: 300µs pulse width, 1% duty cycle (2) Aluminum substrate mounted 1 1 Rev.1 www.gulfsemi.com RATINGS AND CHARACTERISTIC CURVES SB43-B THRU SB44-B 2 2 Rev.1 www.gulfsemi.com