STTH110 High voltage ultrafast rectifier Features ■ Low forward voltage drop ■ High reliability ■ High surge current capability A ■ Soft switching for reduced EMI disturbances ■ Planar technology A K K Description The STTH110, 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. October 2009 SMA (JEDEC DO-214AC) STTH110A Table 1. Doc ID 9344 Rev 2 DO-41 STTH110 Device summary Symbol Value IF(AV) 1A VRRM 1000 V Tj (max) 175 °C VF(max) 1.42 V 1/6 www.st.com 6 Characteristics 1 STTH110 Characteristics Table 2. Absolute ratings (limiting values) Symbol Parameter Value Unit VRRM Repetitive peak reverse voltage 1000 V V(RMS) Voltage rms 700 V IF(AV) Average forward current IFSM Forward Surge current t = 8.3 ms Tstg Storage temperature range Tj Table 3. 1 DO-41 TL = 125 °C δ = 0.5 1 A SMA 18 DO-41 20 A -50 to + 175 °C 175 °C Value Unit Thermal resistance Parameter Rth(j-l) Junction to lead Rth(j-a) Junction to ambient Symbol TL = 110 °C δ = 0.5 Maximum operating junction temperature Symbol Table 4. SMA SMA 30 Lead length = 10 mm DO-41 45 Lead length = 10 mm DO-41 110 °C/W Static Electrical Characteristics Parameter Tests conditions Tj = 25 °C IR Reverse leakage current VF Forward voltage drop Tj = 125 °C Tj = 25 °C Tj = 125 °C Min. Typ. Max. Unit 10 VR = 1000 V µA 50 1.7 IF = 1 A V 0.98 1.42 Typ. Max. Unit 75 ns 300 ns 18 V To evaluate the conduction losses use the following equation: P = 1.20 x IF(AV) + 0.225 IF2(RMS) Table 5. Symbol Parameter trr Reverse recovery time tfr Forward recovery time VFP 2/6 Dynamic electrical characteristics Forward recovery voltage Tests conditions Tj = 25 °C IF = 0.5, A Irr = 0.25 A, IR = 1 A Tj = 25 °C IF = 1 A, dIF/dt = 50 A/ms VFR = 1.1 x VFmax Doc ID 9344 Rev 2 Min. STTH110 Characteristics Figure 1. Conduction losses versus average Figure 2. current Forward voltage drop versus forward current IFM(A) P(W) 100.0 1.8 δ = 0.05 1.6 δ = 0.2 δ = 0.1 δ = 0.5 Tj=150°C (maximum values) 1.4 δ=1 1.2 10.0 Tj=150°C (typical values) 1.0 Tj=25°C (maximum values) 0.8 0.6 1.0 T 0.4 0.2 IF(AV)(A) δ=tp/T 0.0 0.0 0.1 Figure 3. 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 VFM(V) tp 0.1 1.0 1.1 1.2 0.0 0.5 Relative variation of thermal Figure 4. impedance junction ambient versus pulse duration (DO-41) Zth(j-c)/Rth(j-c) 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Relative variation of thermal impedance junction ambient versus pulse duration (epoxy FR4) (SMA) Zth(j-c)/Rth(j-c) 1.0 1.0 epoxy FR4, leads = 10 mm 0.9 0.9 0.8 0.8 0.7 0.7 0.6 0.6 δ = 0.5 0.5 0.5 0.4 0.4 0.3 T Single pulse tp(s) 1.E-01 1.E+00 Figure 5. 0.1 δ=tp/T 0.0 1.E+01 T δ = 0.1 0.2 δ = 0.1 0.1 δ = 0.2 0.3 δ = 0.2 0.2 δ = 0.5 tp(s) Single pulse tp δ=tp/T 0.0 1.E+02 1.E+03 Thermal resistance junction to ambient versus copper surface under each lead (DO-41) 1.E-01 1.E+00 Figure 6. 1.E+01 tp 1.E+02 1.E+03 Thermal resistance junction to ambient versus copper surface under each lead (SMA). Rth(j-a)(°C/W) Rth(j-a)(°C/W) 140 120 epoxy printed circuit board FR4, copper thickness: 35 µm 110 epoxy printed circuit board FR4, copper thickness: 35 µm 130 120 100 110 90 100 80 90 70 80 60 70 50 60 50 40 40 30 30 20 20 10 10 S(cm²) S(cm²) 0 0 0 1 2 3 4 5 6 7 8 9 10 0.0 Doc ID 9344 Rev 2 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 3/6 Package information 2 STTH110 Package information ● Epoxy meets UL 94, V0 ● Band indicates cathode ● Bending method (DO-41): see Application note AN1471 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 6. SMA dimensions Dimensions Ref. E1 D E A1 A2 C L Figure 7. b Millimeters Inches Min. Max. Min. Max. A1 1.90 2.45 0.075 0.094 A2 0.05 0.20 0.002 0.008 b 1.25 1.65 0.049 0.065 c 0.15 0.40 0.006 0.016 D 2.25 2.90 0.089 0.114 E 4.80 5.35 0.189 0.211 E1 3.95 4.60 0.156 0.181 L 0.75 1.50 0.030 0.059 Footprint (dimensions in mm) 2.63 1.4 1.4 1.64 5.43 Table 7. DO-41 (plastic) package dimensions Dimensions Ref. 4/6 A C Doc ID 9344 Rev 2 Inches Min. Max. Min. Max. A 4.07 5.20 0.160 0.205 2.71 0.080 0.107 ØD ØB C Millimeters B 2.04 C 25.4 D 0.71 1 0.86 0.028 0.034 STTH110 3 Ordering information Ordering information Table 8. 4 Ordering information Order code Marking Package Weight Base qty Delivery mode STTH110 STTH110 DO-41 0.34 g 2000 Ammopack STTH110A H10 SMA 0.068 g 5000 Tape and reel STTH110RL STTH110 DO-41 0.34 g 5000 Tape and reel Revision history Table 9. Document revision history Date Revision Changes Jan-2003 1 Last update. 30-Sept-2009 2 Updated table 7 package dimensions. 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