BZW50 Transil™, transient voltage surge suppressor (TVS) Datasheet production data Features ■ Peak pulse power: 5000 W (10/1000 µs) ■ Stand-off voltage range from 10 V to 180 V ■ Unidirectional and bidirectional types ■ Low clamping factor ■ Fast response time ■ UL497B, file number: QVGQ2.E136224 R6 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. TM:Transil is a trademarks of STMicroelectronics. December 2012 This is information on a product in full production. Doc ID 2973 Rev 5 1/8 www.st.com 8 Characteristics BZW50 1 Characteristics Table 1. Absolute maximum ratings (Tamb = 25 °C) Symbol PPP P Parameter Value Unit Peak pulse power dissipation(1) Tj initial = Tamb 5000 W Power dissipation on infinite heatsink Tamb = 75 °C 6.5 W 500 A -65 to + 175 °C IFSM t = 10 ms Non repetitive surge peak forward current for unidirectional types p Tj initial = Tamb Tstg Storage temperature range Tj 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 resistances Symbol Parameter Value Rth(j-l) Junction to leads 15 Rth(j-a) Junction to ambient on printed circuit. L lead = 10 mm 65 Figure 1. °C/W Electrical characteristics - definitions Symbol VRM VBR VCL IRM IPP αT VF RD Figure 2. Parameter Stand-off voltage Breakdown voltage Clamping voltage Leakage current @ VRM Peak pulse current Voltage temperature coefficient Forward voltage drop Dynamic resistance Unidirectional I I IF IPP VF VCL VBR VRM V IR IRM V IRM IR IPP IPP Pulse definition for electrical characteristics tr VCLVBR VRM IRM IR Repetitive pulse current tr = rise time (µs) tp = pulse duration time (µs) 2/8 Unit tp Doc ID 2973 Rev 5 VRMVBR VCL Bidirectional BZW50 Characteristics Table 3. Electrical characteristics - values (Tamb = 25 °C) IRM @ VRM VBR @ IR(1) Order code max Unidirectional Bidirectional min VCL @ IPP VCL @ IPP 10/1000 µs 8/20µs max max T(2) C(3) max typ 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. VBR = T · (Tamb - 25) · VBR(25°C). 3. VR = 0 V, F = 1 MHz. For bidirectional types, capacitance value is divided by 2. Doc ID 2973 Rev 5 3/8 Characteristics Figure 3. BZW50 Peak power dissipation vs. initial junction temperature (printed circuit board) Figure 4. Peak pulse power vs. exponential pulse duration Ppp (W) % 1E7 Tj initial(°C) 100 1E6 80 1E5 60 1E4 40 20 1E3 Tj initial(°C) tp(ms)EXPO. 0 0 20 Figure 5. 40 60 80 100 120 140 160 180 200 Clamping voltage vs. peak pulse current(1) 1E2 0.001 Figure 6. VCL (V) 0.01 0.1 1 10 100 Capacitance vs. reverse applied voltage for unidirectional types (typical values). C (nF) 1000 100 % Ipp 100 Tj initial(°C) Tj= 25 °C F = 1 MHz 50 0 BZW50-180 tr tp t t r < 10 s 10 BZW50- 82 100 BZW50- 39 82 B ZW 5 0-10 B ZW 5 0-18 B ZW 5 0-39 B ZW 5 0-82 1 B ZW 5 0-180 BZW50- 18 12 BZW50- 10 12 10 0.1 V R (V) Ipp (A) 1 10 100 1000 0.1 10000 1 10 100 500 1. The curves in Figure 5 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: VBR = T x [Tamb -25] x VBR(25 °C) For intermediate voltages, extrapolate the given results. Figure 7. Capacitance vs. reverse applied voltage for bidirectional types (typical values) Figure 8. C (nF) 100 Tj= 25 °C F = 1 MHz 10 1 B ZW 5 0-10B B ZW 5 0-18B B ZW 5 0-39B BZW 50-8 2B B ZW 5 0-180 B V R (V) 0.1 1 10 100 500 1. Multiply by 2 for units with VBR > 220 V. 4/8 Doc ID 2973 Rev 5 Peak forward voltage drop vs. peak forward current for unidirectional types (typical value).(1) BZW50 Figure 9. 100 Ordering information scheme Figure 10. Relative variation of leakage current vs. junction temperature Transient thermal impedance junction to ambient vs. pulse duration Zth (j-a) (°C/W) 10 tp(s) 1 0.01 2 0.1 1 10 100 1000 Ordering information scheme Figure 11. Ordering information scheme BZW 50 10 CA RL Transil Peak Pulse Power 50 = 5000 W Breakdown Voltage 100 = 100 V Types A = Unidirectional CA = Bidirectional Packaging Blank = Ammopack tape RL = Tape and reel Doc ID 2973 Rev 5 5/8 Package information 3 BZW50 Package information ● Epoxy meets UL94, V0 ● Lead-free package 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. Table 4. R6 Dimensions Dimensions B ØD Table 5. Ref. Millimeters Inches Min. Max. Min. Max. A 8.6 9.1 0.338 0.358 B 25.4 ØC 8.6 9.1 0.338 0.358 ØD 1.2 1.3 0.047 0.051 ØC 1 Marking Unidirectional order code 6/8 B A 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 Doc ID 2973 Rev 5 BZW50 4 Ordering information Ordering information Table 6. Ordering information Order code Marking(1) Package Weight Base qty Delivery mode 1000 Tape and reel 100 Ammopack BZW50xxxx BZW50xxxxB See Table 5 R6 2.050g BZW50xxxxRL BZW50xxxxBRL 1. Logo, date code, type code, cathode band (for unidirectional types only). 5 Revision history Table 7. Document revision history Date Revision Changes Feb-2003 4 Last update 14-Dec-2012 5 Updated ECOPACK statement. Doc ID 2973 Rev 5 7/8 BZW50 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. 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