DDZX5V1B - DDZX43 SURFACE MOUNT PRECISION ZENER DIODE Features Mechanical Data Very Sharp Breakdown Characteristics Case: SOT23 300mW Power Dissipation on FR-4 PCB Case Material: Molded Plastic, Green Molding Compound. UL Flammability Classification Rating 94V-0 Very Tight Tolerance on V Z Moisture Sensitivity: Level 1 per J-STD-020 Ideally Suited for Automated Assembly Processes Terminals: Finish - Matte Tin Annealed over Alloy 42 Leadframe. Very Low Leakage Current Solderable per MIL-STD-202, Method 208 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Polarity: See Diagram Halogen and Antimony Free. Green Device (Note 3) Weight: 0.008 grams (Approximate) Qualified to AEC-Q101 Standards for High Reliability An Automotive-Compliant Part is Available Under Separate Datasheet (DDZX5V1BQ) SOT23 Device Schematic Top View Ordering Information (Note 4) Part Number Compliance Case Packaging (Type Number)-7 (Note 5) Standard SOT23 3,000/Tape & Reel (Type Number)-13 (Note 6) Standard SOT23 10,000/Tape & Reel Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See DDZX5V1B - DDZX43 Maximum Ratings ( T = +25C, unless otherwise specified.) A Characteristic Symbol Value Unit 0.9 V Forward Voltage IF = 10mA VF Thermal Characteristics Characteristic Symbol Value Unit Power Dissipation (Note 7) P 300 mW D Thermal Resistance, Junction to Ambient Air (Note 7) 417 C/W R JA Operating and Storage Temperature Range -65 to +150 T T C J, STG Note: 7. Device mounted on FR-4 PCB with recommended pad layout, which can be found on our website at