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| SMAJ530 & SMAJ550 Vishay General Semiconductor Surface Mount TRANSZORB(R) Transient Voltage Suppressors FEATURES * Glass passivated chip junction * Available in uni-directional polarity only * Excellent clamping capability * Very fast response time * Low incremental surge resistance * Meets MSL level 1, per J-STD-020, LF maximum peak of 260 C * Solder dip 260 C, 40 s * Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC APPLICATION NOTES * Respect thermal resistance (PCB Layout) - as the temperature coefficient also contributes to the clamping voltage * Select minimum breakdown voltage, so you get acceptable power dissipation and PCB tie point temperature * Devices with higher breakdown voltage will have a shorter conduction time and will dissipate less power * Clamping voltage is influenced by internal resistance - design approximation is 7 V per 100 mA slope * Keep temperature of TVS lower than TOPSwitch(R) as a recommendation * Maximum current is determined by the maximum TJ and can be higher than 300 mA * Contact supplier for different clamping voltage/ current arrangements * Minimum breakdown voltage can be customized for other applications. Contact supplier * TOPSwitch is a registered trademark of Power Integrations, Inc. DO-214AC (SMA) PRIMARY CHARACTERISTICS VBR PPPM PD IFSM TJ max. 530 V, 550 V 300 W 2.5 W 40 A 150 C TYPICAL APPLICATIONS Use in sensitive electronics protection against voltage transients induced by inductive load switching and lighting on ICs, MOSFET, signal lines of sensor units for consumer, computer, industrial, automotive and telecommunication. MECHANICAL DATA Case: DO-214AC (SMA) Molding compound meets UL 94 V-0 flammability rating Base P/N-E3 - RoHS compliant, commercial grade Base P/NHE3 - RoHS compliant, high reliability/ automotive grade (AEC Q101 qualified) Terminals: Matte tin plated leads, solderable per J-STD-002 and JESD22-B102 E3 suffix meets JESD 201 class 1A whisker test, HE3 suffix meets JESD 201 class 2 whisker test Polarity: Color band denotes cathode end MAXIMUM RATINGS (TA = 25 C unless otherwise noted) PARAMETER Device marking code Power dissipation on infinite heatsink (3) Peak pulse power Stand-off voltage Operating junction and storage temperature range dissipation (1)(2)(4) (Fig. 1) PD PPPM VWM TJ, TSTG 477 SYMBOL SMAJ530 HD 2.5 300 495 SMAJ550 SB W W V C UNIT - 55 to + 150 Notes: (1) Non repetitive current pulse per Fig. 3 and derated above 25 C per Fig. 2 (2) Mounted on 5.0 mm2 copper pads to each terminal (3) Lead temperature at TL = 75 C (4) Peak pulse power waveform is 10/1000 s Document Number: 88391 Revision: 21-Oct-08 For technical questions within your region, please contact one of the following: PDD-Americas@vishay.com, PDD-Asia@vishay.com, PDD-Europe@vishay.com www.vishay.com 1 SMAJ530 & SMAJ550 Vishay General Semiconductor ELECTRICAL CHARACTERISTICS (TA = 25 C unless otherwise noted) PARAMETER Minimum breakdown voltage Max. clamping voltage Maximum DC reverse leakage current Typical temperature coefficient Typical capacitance (1) Note: (1) Measured at 1 MHz TEST CONDITIONS 100 A 400 mA, 10/1000 s-waveform VWM of VBR 0V 200 V CJ CJ SYMBOL VBR VC ID SMAJ530 530 760 1.0 650 90 7.5 SMAJ550 550 UNIT V V A mV/C pF pF THERMAL CHARACTERISTICS (TA = 25 C unless otherwise noted) PARAMETER Typical thermal resistance, junction to lead Typical thermal resistance, junction to ambient Note: (1) Mounted on minimum recommended pad layout (1) SYMBOL RJL RJA SMAJ530 30 120 SMAJ550 UNIT C/W C/W ORDERING INFORMATION (Example) PREFERRED P/N SMAJ530-E3/61 SMAJ530-E3/5A SMAJ530HE3/61 (1) SMAJ530HE3/5A (1) Note: (1) Automotive grade AEC Q101 qualified UNIT WEIGHT (g) 0.064 0.064 0.064 0.064 PREFERRED PACKAGE CODE 61 5A 61 5A BASE QUANTITY 1800 7500 1800 7500 DELIVERY MODE 7" diameter plastic tape and reel 13" diameter plastic tape and reel 7" diameter plastic tape and reel 13" diameter plastic tape and reel RATINGS AND CHARACTERISTICS CURVES (TA = 25 C unless otherwise noted) Non-Repetitive Pulse Waveform shown in Fig. 3 TA = 25 C 10 Peak Pulse Power (PPP) or Current (IPP) Derating in Percentage, % 100 100 PPPM - Peak Pulse Power (kW) 75 50 1 25 0.1 0.1 s 1.0 s 10 s 100 s 1.0 ms 10 ms 0 0 25 50 75 100 125 150 175 200 td - Pulse Width (s) TJ - Initial Temperature (C) Figure 1. Peak Pulse Power Rating Curve Figure 2. Pulse Power or Current vs. Initial Junction Temperature www.vishay.com 2 For technical questions within your region, please contact one of the following: PDD-Americas@vishay.com, PDD-Asia@vishay.com, PDD-Europe@vishay.com Document Number: 88391 Revision: 21-Oct-08 SMAJ530 & SMAJ550 Vishay General Semiconductor 150 IPPM - Peak Pulse Current, % IRSM tr = 10 s Peak Value IPPM TJ = 25 C Pulse Width (td) is defined as the Point where the Peak Current decays to 50 % of IPPM 100 Half Value - IPP IPPM 2 50 10/1000 s Waveform as defined by R.E.A. td 0 0 1.0 2.0 3.0 4.0 t - Time (ms) Figure 3. Pulse Waveform PACKAGE OUTLINE DIMENSIONS in inches (millimeters) DO-214AC (SMA) Cathode Band Mounting Pad Layout 0.066 (1.68) MIN. 0.074 (1.88) MAX. 0.065 (1.65) 0.049 (1.25) 0.110 (2.79) 0.100 (2.54) 0.177 (4.50) 0.157 (3.99) 0.012 (0.305) 0.006 (0.152) 0.060 (1.52) MIN. 0.208 (5.28) REF. 0.090 (2.29) 0.078 (1.98) 0.060 (1.52) 0.030 (0.76) 0.008 (0.203) 0 (0) 0.208 (5.28) 0.194 (4.93) Document Number: 88391 Revision: 21-Oct-08 For technical questions within your region, please contact one of the following: PDD-Americas@vishay.com, PDD-Asia@vishay.com, PDD-Europe@vishay.com www.vishay.com 3 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, "Vishay"), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1 |
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