STTH212 High voltage ultrafast diode Main product characteristics A IF(AV) 2A VRRM 1200 V Tj 175C VF (typ) 1.0 V trr (max) 75 ns K DO-201AD STTH212 Features and benefits Low forward voltage drop High reliability High surge current capability Soft switching for reduced EMI disturbances Planar technology Description SMB STTH212U SMC STTH212S Order codes The STTH212, which is using ST ultrafast high voltage planar technology, is specially suited for free-wheeling, clamping, snubbering, demagnetization in power supplies and other power switching applications. Part Number Marking STTH212 STTH212 STTH212RL STTH212 STTH212U U22 Housed in axial, SMB, and SMC packages, this diode will reduce the losses in high switching freqency operations. STTH212S S12 June 2005 Rev 1 1/9 www.st.com 9 STTH212 1 Electrical characteristics 1 Electrical characteristics Table 1. Absolute Ratings (limiting values) Symbol Parameter Value Unit VRRM Repetitive peak reverse voltage 1200 V V(RMS) RMS voltage 850 V 2 A IF(AV) IF(RMS) Average forward current = 0.5 DO-201AD Tl = 105C SMB Tl = 90C SMC Tl = 105C RMS forward current DO-201AD, SMB, SMC 10 A IFSM Forward surge current tp = 8.3ms DO-201AD, SMB, SMC 40 A Tstg Storage temperature range -50 to + 175 C 175 C Value Unit Tj Table 2. Maximum operating junction temperature Thermal parameters Symbol Parameter L = 10 mm Rth(j-l) Rth(j-a) Table 3. Symbol IR Junction to lead Junction to ambient L = 10 mm DO-201AD 20 SMB 25 SMC 20 DO-201AD 75 C/W Static Electrical Characteristics Parameter Reverse leakage current Test conditions Tj = 25C Tj = 125C Min. Typ Forward voltage drop Tj = 125C Tj = 150C Max. Unit 10 VR = VRRM A 100 Tj = 25C VF C/W 1.75 IF = 2A 1.07 1.50 1.0 - V To evaluate the conduction losses use the following equation: P = 1.26 x IF(AV) + 0.12 IF2(RMS) 2/9 STTH212 Table 4. 1 Electrical characteristics Dynamic Electrical Characteristics Symbol Parameter trr Test conditions Reverse recovery time tfr Forward recovery time VFP Forward recovery voltage Figure 1. Min. Tj = 25C IF = 1A dIF/dt = -100 A/s VR =30V Tj = 25C IF = 2A dIF/dt = 50 A/s VFR = 1.1 x VFmax Conduction losses versus average forward current Figure 2. Typ Max. Unit 75 ns 500 ns 30 V Forward voltage drop versus forward current IFM(A) P(W) 50 4.0 = 0.05 3.5 = 0.1 = 0.2 = 0.5 45 Tj=125C (maximum values) 40 3.0 35 =1 2.5 Tj=125C (typical values) 30 2.0 25 1.5 20 1.0 Tj=25C (maximum values) 15 T 10 0.5 IF(AV)(A) 0.0 0.00 0.25 Figure 3. 1.0 0.50 0.75 1.00 1.25 1.50 =tp/T 1.75 2.00 5 tp 2.25 2.50 Relative variation of thermal impedance junction to ambient versus pulse duration (Epoxy printed circuit board FR4, LLeads = 10mm) Zth(j-a)/Rth(j-a) 0.9 VFM(V) 0 0.0 Figure 4. 1.0 0.9 DO-201AD Lleads=10mm 0.8 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.3 0.3 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Relative variation of thermal impedance junction to ambient versus pulse duration (Epoxy printed circuit board FR4, SCU = 1cm2) Zth(j-a)/Rth(j-a) SMB SCu=1cm 0.2 0.2 0.1 0.0 1.E-01 0.5 0.1 tp(s) 1.E+00 1.E+01 1.E+02 1.E+03 0.0 1.E-01 tp(s) 1.E+00 1.E+01 1.E+02 1.E+03 3/9 STTH212 1 Electrical characteristics Figure 5. Relative variation of thermal impedance junction to ambient versus pulse duration (Epoxy printed circuit board FR4, SCU = 1cm2) Figure 6. IRM(A) Zth(j-a)/Rth(j-a) 1.0 Reverse recovery current versus dIF/dt (typical values) 11 0.9 SMC SCu=1cm V R =600V Tj=125C 10 0.8 9 0.7 8 0.6 7 0.5 6 IF=2 x IF(AV) IF=IF(AV) IF=0.5 x IF(AV ) 5 0.4 4 0.3 3 0.2 2 0.1 tp(s) 0.0 1.E-01 dlF/dt(A/s) 1 0 1.E+00 1.E+01 1.E+02 1.E+03 0 20 Reverse recovery time versus dIF/dt Figure 8. (typical values) Figure 7. trr(ns) 40 60 80 100 120 140 160 180 200 Reverse recovery charges versus dIF/dt (typical values) Qrr(nC) 900 1400 VR=600V Tj=125C 800 V R =600V Tj=125C 1200 IF=2 x IF(AV) 700 1000 600 800 500 IF=2 x F(AV) I 400 IF=IF(AV) 600 IF=IF(AV) 300 IF=0.5 x IF(AV) 400 200 200 IF=0.5 xF(AV) I 100 dlF/dt(A/s) dlF/dt(A/s) 0 0 50 Figure 9. 100 150 200 250 300 0 350 400 450 0 500 Softness factor versus dIF/dt (typical values) 50 100 150 200 250 300 350 400 450 500 Figure 10. Relative variations of dynamic parameters versus junction temperature SFACTOR 6.0 1.0 IF=IF(AV) V R =600V Tj=125C 5.5 5.0 0.9 4.0 0.7 3.5 0.6 3.0 0.5 2.5 IR M Q RR 0.4 2.0 0.3 1.5 0.2 1.0 0.5 0 25 50 75 100 125 150 Tj(C) 0.1 dlF/dt(A/s) 0.0 4/9 S FAC TO R 0.8 4.5 IF=IF(AV) V R =600V R eference:Tj=125C 0.0 175 200 225 250 25 50 75 100 125 STTH212 1 Electrical characteristics Figure 11. Transient peak forward voltage versus dIF/dt (typical values) Figure 12. Forward recovery time versus dIF/dt (typical values) VFP(V) 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 tFR(ns) 420 IF=IF(AV) Tj=125C 400 IF=IF(AV) V FR =1.1 x V F m ax. Tj=125C 380 360 340 320 300 280 260 240 220 dlF/dt(A/s) dlF/dt(A/s) 200 0 10 20 30 40 50 60 70 80 90 100 Figure 13. Junction capacitance versus reverse voltage applied (typical values) 0 20 40 60 80 100 Figure 14. Thermal resistance versus lead length Rth(j-a)(C/W) C(pF) 100 100 F=1MHz Vosc=30mVRMS Tj=25C DO201-AD 90 Rth(j-a) 80 70 60 50 10 Rth(j-l) 40 30 20 10 VR(V) 1 1 LLeads(mm) 0 10 100 5 1000 10 15 20 25 Figure 16. Thermal resistance junction to ambient versus copper surface under each lead (Epoxy printed circuit board FR4, ecu = 35 m) Figure 15. Thermal resistance junction to ambient versus copper surface under each lead (Epoxy printed circuit board FR4, eCU = 35m) Rth(j-a)(C/W) Rth(j-a)(C/W) 110 80 100 DO-201AD 70 90 60 80 50 70 SMB 60 40 SMC 50 30 40 20 30 20 10 10 SCu(cm2) 0 0 1 2 3 4 5 SCu(cm2) 0 6 7 8 9 10 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5/9 STTH212 2 Package mechanical data 2 Package mechanical data Table 5. SMB dimensions DIMENSIONS REF. Millimeters Inches Min. Max. Min. Max. A1 1.90 2.45 0.075 0.096 A2 0.05 0.20 0.002 0.008 b 1.95 2.20 0.077 0.087 c 0.15 0.41 0.006 0.016 E 5.10 5.60 0.201 0.220 E1 4.05 4.60 0.159 0.181 D 3.30 3.95 0.130 0.156 L 0.75 1.60 0.030 0.063 Figure 17. SMB references to dimensions table Figure 18. SMB footprint dimensions (in millimetres) E1 2.23 1.64 2.23 D 2.30 E A1 6.10 C 6/9 A2 L b STTH212 2 Package mechanical data Table 6. SMC dimensions DIMENSIONS REF. Millimeters Inches Min. Max. Min. Max. A1 1.90 2.45 0.075 0.096 A2 0.05 0.20 0.002 0.008 b 2.90 3.2 0.114 0.126 c 0.15 0.41 0.006 0.016 E 7.75 8.15 0.305 0.321 E1 6.60 7.15 0.260 0.281 E2 4.40 4.70 0.173 0.185 D 5.55 6.25 0.218 0.246 L 0.75 1.60 0.030 0.063 Figure 19. SMC references to dimensions table Figure 20. SMC footprint dimensions (in millimetres) E1 2.20 4.25 2.20 D 3.30 E A1 8.65 A2 C E2 Table 7. L b DO-201AD dimensions DIMENSIONS B B A E Note 1 E REF. Millimeters Inches Note 1 OD Note 2 OC Min. Max. Min. Max. A - 9.5 - 0.37 B 25.4 - 1.00 - C - 5.3 - 0.21 D - 1.3 - 0.051 E - 1.25 - 0.048 Note: 1 The lead diameter D is not controlled over zone E. 2 The minimum length which must stay straight between the right angles after bending is 15 mm (0.59 inch). 7/9 STTH212 3 Ordering information 3 4 8/9 Ordering information Part Number Marking STTH212 STTH212 Package Weight DO-201AD 1.12 g Base qty Delivery mode 600 Ammopack 1900 Tape & reel STTH212RL STTH212 STTH212U U22 SMB 0.11 g 2500 Tape & reel STTH212S S12 SMC 0.243 g 2500 Tape & reel Revision history Date Revision 28-Jun-2005 1 Description of Changes First issue. STTH212 4 Revision history Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. 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