SMAJ530

SMAJ530 THRU SMAJ550 Surface Mount TransZorb TM Transient Voltage Suppressors Voltage Range 530 to 550 Volts 300 Watts Peak Power Features a a a a a a Plastic package has Underwriters Laboratory Flammability Classification 94V-0 Protects power IC controllers such as TOPSwitch® Excellent clamping capability Glass passivated junction High temperature soldering guaranteed: 260+ / 10 seconds at terminals Available in unidirectional only .062(1.58) .056(1.43) SMA/DO-214AC .111(2.83) .102(2.58) .187(4.75) .167(4.25) Mechanical Data a a a a Case: JEDEC DO-201AC molded plastic body over passivated junction Terminals: Solder plated, solderable per MIL-STD750, Method 2026 Polarity: The band denotes the cathode, which is positive with respect to the anode under normal TVS operation Mounting position: Any Weight: 0.002 ounce, 0.064 gram Dimensions in inches and (millimeters) Unless Otherwise Noted. .103(2.61) .078(1.99) .012(.31) .006(.15) .008(.20) .004(.10) .056(1.41) .035(0.90) .210(5.33) .195(4.95) a Maximum Ratings and Thermal Characteristics TA= 25+ Type Number Device Marking Code Peak Pulse Power Dissipation (Note 1, 2 Fig. 1) Symbol PPPM PM(AV) VWM R JL R JA TJ, TSTG Symbol V(BR) VC ID CJ Steady State Power Dissipation at TL=75 OC Stand-off Voltage Typical Thermal resistance Junction-to-lead Typical Thermal Resistance Junction-to-ambient Operating and Storage Temperature Range SMAJ530 SMAJ550 HD SB Minimum 300 1.0 477 495 27 75 -55 to + 150 Units Watts Watts V +/W +/W + Units V V uA mV+ pF Electrical Characteristics Type Number Minimum Breakdown Voltage at 100uA Max. Clamping Voltage at 400mA, 10/1000uS-Waveform Maximum DC Reverse Leakage Current at VWM Typical Temperature Coefficient of VBR Typical Capacitance (Note 3) at 0V 200V SMAJ530 SMAJ550 530 550 760 5.0 650 90 7.5 Notes: 1. Non Repetitive Current Pulse per Fig. 3 and Derated above 25OC per Fig. 2. 2. Peak Pulse Power Waveform is 10 / 1000uS. 3. Measured at 1MHz. RATINGS AND CHARACTERISTIC CURVES (SMAJ530 THRU SMAJ550) FIG.1- PEAK PULSE POWER RATING CURVE NON-REPETITIVE PULSE WAVEFORM SHOWN in FIG. 3 TA=250C FIG.2- PULSE DERATING CURVE PEAK PULSE POWER (Pppm) or CURRENT (lpp) DERATING IN PERCENTAGE, % 100 100 Pppm, PEAK PULSE POWER, KW 75 10 50 1.0 25 0.2" sq 5.0mm 2 COPPER PAD AREAS 0.1 0.1 s 1.0 s 10 s 100 s 1.0ms 10ms 0 0 25 50 75 100 125 O 150 175 200 td. PULSE WIDTH, sec. TA, AMBIENT TEMPERATURE. C FIG.3- PULSE WAVEFORM 150 lppm, PEAK PULSE CURRENT % PULSE WIDTH (td) is DEFINED tr=10 sec. AS THE POINT WHERE THE PEAK CURRENT DECAYS to 50% of lppm PEAK VALUE lppm HALF VALUE- lpp 2 100 50 10/1000 sec. WAVEFORM AS DEFINED BY R.E.A. td 0 0 1.0 2.0 t, TIME, ms 3.0 4.0