BZX84C43 - BZX84C51 350mW SURFACE MOUNT ZENER DIODE Features · · · · Planar Die Construction 350mW Power Dissipation Zener Voltages from 43V - 51V Ideally Suited for Automated Assembly Processes SOT-23 A · · · Min Max A 0.37 0.51 B 1.20 1.40 TOP VIEW C 2.30 2.50 D D 0.89 1.03 E 0.45 0.60 G 1.78 2.05 H 2.80 3.00 J 0.013 0.10 K 0.903 1.10 L 0.45 0.61 M 0.085 0.180 a 0° 8° B Mechanical Data · · · · Dim E C G Case: SOT-23, Molded Plastic Case material - UL Flammability Rating 94V-0 Moisture sensitivity: Level 1 per J-STD-020A Terminals: Solderable per MIL-STD-202, Method 208 Polarity: See Diagram Marking: Marking Code (See Table on Page 2) Weight: 0.008 grams (approx.) H K J M L All Dimensions in mm Maximum Ratings @ TA = 25°C unless otherwise specified Characteristic Forward Voltage @ IF = 10mA Power Dissipation (Note 1) Thermal Resistance, Junction to Ambient Air (Note 1) Operating and Storage Temperature Range Notes: Symbol Value VF 0.9 Unit V Pd 350 mW RqJA 357 °C/W Tj, TSTG -65 to +150 °C 1. Device mounted on FR-4 PC board with recommended pad layout, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. DS30370 Rev. 1 - 2 1 of 3 www.diodes.com BZX84C43 - BZX84C51 Electrical Characteristics Type Number @ TA = 25°C unless otherwise specified Zener Voltage Range (Note 2) Marking Code Maximum Reverse Current (Note 2) Maximum Zener Impedance (Note 3) VZ @ IZT IZT ZZT @ IZT Nom (V) Min (V) Max (V) (mA) (W) (W) IR VR (mA) (mA) (V) ZZK @ IZK Typical Temperature Coefficient @ IZT mV/°C Min Max BZX84C43 Y15/KYF 43 40.0 46.0 2.0 150 375 0.5 0.1 30.1 10.0 12.0 BZX84C47 Y16/KYG 47 44.0 50.0 2.0 170 375 0.5 0.1 32.9 10.0 12.0 BZX84C51 Y17/KYH 51 48.0 54.0 2.0 180 400 0.5 0.1 35.7 10.0 12.0 Notes: 2. Short duration test pulse used to minimize self-heating effect. 3. f = 1KHz. 10 500 Tj = 25°C C47 C43 C51 400 IZ, ZENER CURRENT (mA) Pd, POWER DISSIPATION (mW) See Note 1 300 200 8 6 4 Test Current IZ 2mA 2 100 0 0 100 0 200 TA, Ambient Temperature, (°C) Fig. 1 Power Derating Curve 10 20 30 40 50 60 70 80 90 100 VZ, ZENER VOLTAGE (V) Fig. 2 Zener Breakdown Characteristics 100 Tj = 25°C CT, TOTAL CAPACITANCE (pF) f = 1MHz VR = 1V 10 VR = 2V 1 10 100 VZ, NOMINAL ZENER VOLTAGE (V) Fig. 3 Total Capacitance vs Nominal Zener Voltage DS30370 Rev. 1 - 2 2 of 3 www.diodes.com BZX84C43 - BZX84C51 Ordering Information (Note 4) Device Packaging Shipping (Type Number)-7* SOT-23 3000/Tape & Reel * Add “-7” to the appropriate type number in Table 1 (on Page 2). Example: 43V Zener = BZX84C43-7. Notes: 4. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf. Marking Information (This part may be marked as Figure A or B Below) YM KXX Figure A KXX = Product Type Marking Code (See Page 2) YM = Date Code Marking Y = Year ex: N = 2002 M = Month ex: 9 = September Date Code Key Year 2001 2002 2003 2004 2005 2006 2007 2008 2009 Code M N P R S T U V W Jan Feb March Apr May Jun Jul Aug Sep Oct Nov Dec Code 1 2 3 4 5 6 7 8 9 O N D YM Month Figure B XX = Product Type Marking Code (See Page 2) YM = Date Code Marking Y = Year ex: N = 2001 M = Month ex: 9 = September XX Date Code Key Year 2000 2001 2002 2003 2004 2005 2006 2007 2008 Code M N P R S T U V W Month Jan Feb March Apr May Jun Jul Aug Sep Oct Nov Dec Code 1 2 3 4 5 6 7 8 9 O N D DS30370 Rev. 1 - 2 3 of 3 www.diodes.com BZX84C43 - BZX84C51