BZW50 Datasheet 5 kW TVS Features • Peak pulse power: – 5000 W (10/1000 µs) • Stand off voltage range from 10 V to 180 V • Unidirectional and bidirectional diode • Low clamping factor R6 • Fast response time • UL497B, file number: QVGQ2.E136224 Description Transil diodes provide high overvoltage protection by clamping action. Their instantaneous response to transient overvoltages makes them particularly suited to protect voltage sensitive devices such as MOS Technology and low voltage supplied ICs. Product status link BZW50 DS0662 - Rev 6 - June 2018 www.st.com For further information contact your local STMicroelectronics sales office.

BZW50 Characteristics 1 Characteristics Table 1. Absolute maximum ratings (T = 25 °C) amb Symbol Parameter Value Unit PPP Peak pulse power dissipation(1) 5000 W P Power dissipation on infinite heatsink 6.5 W IFSM Non repetitive surge peak forward current for unidirectional types 500 A Tstg Storage temperature range -65 to +175 °C Top Maximum operating junction temperature 175 °C TL Maximum lead temperature for soldering during 10 s at 5 mm from case. 260 °C 1. For a surge greater than the maximum values, the diode will fail in short-circuit. Table 2. Thermal resistance parameter Symbol Parameter Value Unit Rth(j-l) Junction to leads 15 °C/W Rth(j-a) Junction to ambient on printed circuit. L lead = 10 mm 65 °C/W Figure 1. Electrical characteristics (definitions) II II Symbol Parameter VRM Stand-off voltage Unidirectional IIFF IIPPPP V Breakdown voltage BR V Clamping voltage CL II IRM Leakage current @VRM VVCCLLVVBBRRVVRRMM VVFF VV VVCCLLVVBBRRVVRRMM IIRRRRMM VV IαPTP PVoelatakg peu tlseem cpuerrraetnutre coefficient IIIIRRRRMM IIRRIIRRMM VVRRMMVVBBRR VVCCLL V Forward voltage drop F RD Dynamic resistance IIPPPP IIPPPP Bidirectional Figure 2. Pulse definition for electrical characteristics DS0662 - Rev 6 page 2/10

BZW50 Characteristics Table 3. Electrical characteristics - values (T = 25 °C) amb Order code IRMm @a xV.RM VBR @ IR(1) min. 10/1V0C0L0 @ µs I PmPax. VCL @m IPaPx 8./20 µs αT(2) C(3)typ. Unidirectional Bidirectional µA V V mA V A V A 10-4/°C pF BZW50-10 BZW50-10B 5 10 11.1 1 18.8 266 23.4 2564 7.8 24000 BZW50-12 BZW50-12B 5 12 13.3 1 22 227 28 2143 8.4 18500 BZW50-15 BZW50-15B 5 15 16.6 1 26.9 186 35 1714 8.8 13500 BZW50-18 BZW50-18B 5 18 20 1 32.2 155 41.5 1446 9.2 11500 BZW50-22 BZW50-22B 5 22 24.4 1 39.4 127 51 1177 9.6 8500 BZW50-27 BZW50-27B 5 27 30 1 48.3 103 62 968 9.8 7000 BZW50-33 BZW50-33B 5 33 36.6 1 59 85 76 789 10 5750 BZW50-39 BZW50-39B 5 39 43.3 1 69.4 72 90 667 10.1 4800 BZW50-47 BZW50-47B 5 47 52 1 83.2 60.1 108 556 10.3 4100 BZW50-56 BZW50-56B 5 56 62.2 1 99.6 50 129 465 10.4 3400 BZW50-68 BZW50-68B 5 68 75.6 1 121 41 157 382 10.5 3000 BZW50-82 BZW50-82B 5 82 91 1 145 34 189 317 10.6 2600 BZW50-100 BZW50-100B 5 100 111 1 179 28 228 263 10.7 2300 BZW50-120 BZW50-120B 5 120 133 1 215 23 274 219 10.8 1900 BZW50-150 BZW50-150B 5 150 166 1 269 19 343 175 10.8 1700 BZW50-180 BZW50-180B 5 180 200 1 322 16 410 146 10.8 1500 1. Pulse test: tp < 50 ms. 2. To calculate VBR versus Tj: VBR at TJ = VBR at 25 °C x (1 + αT x (Tj - 25)) 3. VR = 0 V, F = 1 MHz. For bidirectional types, capacitance value is divided by 2. DS0662 - Rev 6 page 3/10

BZW50 Characteristics (curves) 1.1 Characteristics (curves) Figure 3. Peak power dissipation vs. initial junction Figure 4. Peak pulse power versus exponential pulse temperature (printed circuit board) duration % Ppp(W) 1E7 100 Tjinitial(°C) 1E6 80 1E5 60 40 1E4 20 1E3 0 Tjinitial(°C) tp(ms)EXPO. 1E2 0 20 40 60 80 100 120 140 160 180 200 0.001 0.01 0.1 1.0 10 100 Figure 6. Capacitance vs. reverse applied voltage for Figure 5. Clamping voltage vs. peak pulse current unidirectional types (typical values) VVCL(V) 1000 C(nF) %%IIpppp 100 110000 Tjinitial(°C ) 5500 TFj == 12 5M °HCz BZW50-180 00 ttrr ttp tt<<rr 1100 ss tt BZW50-10 BBZZWW5500-- 8822 10 BZW50-18 10 0 BZW50-39 BBZZWW5500-- 8329 BZW50-82 1 BBZZWW5500-- 1128 BZW50-180 BBZZWW5500-- 1120 IIpppp((AA)) 10 0.1 1.0 10 100 10000 100000 0.1 VR (V) 11 01 00 500 Note: The curves in Figure 5. Clamping voltage vs. peak pulse current are specified for a junction temperature of 25 °C before surge. The given results may be extrapolated for other junction temperatures by using the following formula: ΔV = αT x [T -25] x V (25 °C). For intermediate voltages, extrapolate the given results. BR amb BR DS0662 - Rev 6 page 4/10

BZW50 Characteristics (curves) Figure 7. Capacitance vs. reverse applied voltage for Figure 8. Peak forward voltage drop vs. peak forward bidirectional types (typical values) current for unidirectional types (typical value) C(nF) IFM(A) 100 100 Tj = 25 °C F = 1 MHz Tj initial 25 °C 10 BZW50-10B BZW50-18B Tj initial 150 °C BZW50-39B 10 1 BZW50-82B BZW50-180B 0.1 VR (V) 1 VFM (V) 1 10 100 500 1 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 Note: For Figure 8. Peak forward voltage drop vs. peak forward current for unidirectional types (typical value), multiply by 2 for units with V > 220 V. BR Figure 9. Transient thermal impedance junction to Figure 10. Relative variation of leakage current vs. ambient vs. pulse duration junction temperature Zth (j-a) (°C/W) IR (Tj) 100 IR (Tj = 25 °C) 5E+3 1E+3 VR = VRM 1E+2 10 1E+1 1E+0 tp(s) Tj (25°C) 1 1E-1 0.01 0.1 1 10 100 1000 0 25 50 75 100 125 150 DS0662 - Rev 6 page 5/10

BZW50 Package information 2 Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. 2.1 R6 package information Figure 11. R6 package outline B A B ØD ØC Table 4. R6 package mechanical data Dimensions Ref. Millimeters Inches Min. Typ. Max. Typ. Max. A 8.6 - 9.1 0.338 - 0.358 B 25.4 - 1 - C 8.6 - 9.1 0.338 - 0.358 D 1.20 - 1.30 0.047 - 0.051 DS0662 - Rev 6 page 6/10

BZW50 R6 package information Table 5. Marking Unidirectional order code Marking Bidirectional order code Marking BZW50-10 BZW50-10 BZW50-10B BZW50-10B BZW50-12 BZW50-12 BZW50-12B BZW50-12B BZW50-15 BZW50-15 BZW50-15B BZW50-15B BZW50-18 BZW50-18 BZW50-18B BZW50-18B BZW50-22 BZW50-22 BZW50-22B BZW50-22B BZW50-27 BZW50-27 BZW50-27B BZW50-27B BZW50-33 BZW50-33 BZW50-33B BZW50-33B BZW50-39 BZW50-39 BZW50-39B BZW50-39B BZW50-47 BZW50-47 BZW50-47B BZW50-47B BZW50-56 BZW50-56 BZW50-56B BZW50-56B BZW50-68 BZW50-68 BZW50-68B BZW50-68B BZW50-82 BZW50-82 BZW50-82B BZW50-82B BZW50-100 BZW50-100 BZW50-100B BZW50-100B BZW50-120 BZW50-120 BZW50-120B BZW50-120B BZW50-150 BZW50-150 BZW50-150B BZW50-150B BZW50-180 BZW50-180 BZW50-180B BZW50-180B DS0662 - Rev 6 page 7/10

BZW50 Ordering information 3 Ordering information Figure 12. Ordering information scheme BZW 50 10 CA RL Transil Peak pulse power 50 = 5000W Breakdown voltage 100 = 100V Types A = Unidirectional CA = Bidirectional Packaging Blank = Ammopack tape RL =Tape and reel Table 6. Ordering information Order code Marking Package Weight Base qty. Delivery mode BZW50xxxx 1000 Ammopack BZW50xxxxB See Table 5. Marking R6 2.050 g BZW50xxxxRL 100 Tape and reel BZW50xxxxBRL 1. Logo, date code, type code, cathode band (for unidirectional types only). DS0662 - Rev 6 page 8/10

BZW50 Revision history Table 7. Document revision history Date Revision Changes Feb-2003 1 Last update. 14-Dec-2012 2 Updated ECOPACK statement. Updated tittle description. Updated Figure 2. Pulse definition for electrical characteristics 25-May-2018 3 and Figure 12. Ordering information scheme. DS0662 - Rev 6 page 9/10

BZW50 IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2018 STMicroelectronics – All rights reserved DS0662 - Rev 6 page 10/10