SANKEN ELECTRIC CO., LTD. SJPZ－K28 1. Scope The present specifications shall apply to an SJPZ-K28. 2. Outline Type Silicon Diode Structure Resin Molded Applications Over Voltage Absorption 3. Flammability UL94V-0 (Equivalent) 060508 1／5 SANKEN ELECTRIC CO., LTD. SJPZ－K28 4. Absolute maximum ratings No. Item 記号 単位 Symbol Unit 定 Rating 格 条 件 Conditions 1 Transient Peak Reverse Power PR W 50 Single Square Wave 2 Direct Current Reverse Voltage VRM V 20 3 Permissible Power loss P W 1.8 (Ceramic substrate) 1.0 (Glass-Epoxy substrate) 4 Peak Surge Reverse Current IZSM A 2 5 Junction Temperature Tj °C -40~+150 6 Storage Temperature Tstg °C -40~+150 Refer to Derating of 7 Single Square Wave 5. Electrical characteristics(Ta=25°C ，unless otherwise specified) No. Item Symbol Unit Value Conditions 1 Forward Voltage Drop VF V 0.95 max. IF=1.0A 2 Reverse Brakedown Voltage VZ V 28±3 IZ=1mA 3 Reverse Leakage Current IR uA 10 max. VR=20V 4 Reverse Leakage Current Under High Temperature H･IR mA 1.0 max. VR=20V , Tj=150°C 5 Temperature Coefficient Breakdown Voltage of γZ mV/°C 25 typ. IZ=1mA 6 Equivalent Resistance Breakdown Region of RZ Ω 26 typ. IZ=1mA to 10mA 060508 2／5 SANKEN ELECTRIC CO., LTD. SJPZ－K28 6. Characteristics VZup-IZ(Ta=25℃) Zener current Coefficient of Breakdown Voltage IZ=1.5A 6.0 IZ=1.0A IZ=0.5A (V) Delta Breakdown Voltage (V) 5.0 4.0 3.0 2.0 1.0 0.0 0 50 PT (msec) 100 Power Forcing Time PT (msec) Reverse Current PW - IZ Ta=25℃，Single square wave Iz (A) Reverse Current IZ (A) 10.0 1.0 0.1 1 10 100 PW (msec) Pulse Width (msec) 060508 3／5 SANKEN ELECTRIC CO., LTD. SJPZ－K28 7. Derating Permissible Power loss Ta - P (w) Permissible Power loss (W) 2.0 Ceramic Substrate (Solder Land 3□) 1.5 1.0 Glass-epoxy Substrate (Solder Land 3□) 0.5 0.0 0 50 100 150 Ta (°C) Ambient Temperature (°C) 060508 4／5 SANKEN ELECTRIC CO., LTD. SJPZ－K28 +0.1 2.15 -0.2 8. Package information 8-1Package type, physical dimensions 2.0 min. 単位：㎜ Dimensions in ㎜ 8-2Appearance The body shall be clean and shall not bear any stain, rust or flaw. 8-3Marking ② ③ 1 Polarity marking (Cathode band) 2 Type number SJPZ-K as abbreviated of ZK. 3 Vz Class number 28V as abbreviated of 28. ④ ① 060508 4 Lot number Example) 6508 6:Last number of Year 5: Month from 1 to 9 for Jan. to Sep.O for Oct.，N for Nov.，D for Dec. 08:Day. 5／5 060508 2／5