STPS20120D Datasheet 120 V power Schottky rectifier Features A K • High junction temperature capability • Avalanche rated K • Low leakage current • Good trade-off between leakage current and forward voltage drop • ECOPACK®2 compliant A Applications K TO-220AC • Switching diode • SMPS • DC/DC converter • LED lighting • Notebook adapter Description This single Schottky rectifier is suited for high frequency switch mode power supply. Packaged in TO-220AC, the STPS20120D is optimized for use in notebook & LCD adaptors, desktop SMPS, providing in these applications a margin between the remaining voltages applied on the diode and the voltage capability of the diode. Product status link STPS20120D Product summary Symbol Value IF(AV) 20 A VRRM 120 V Tj (max.) 175 °C VF (typ.) 0.72 V DS4232 - Rev 2 - July 2018 www.st.com For further information contact your local STMicroelectronics sales office.

STPS20120D Characteristics 1 Characteristics Table 1. Absolute ratings (limiting values at 25 °C unless otherwise specified) Symbol Parameter Value Unit VRRM Repetitive peak reverse voltage 120 V IF(RMS) Forward rms current 30 A IF(AV) Average forward current , δ = 0.5 square wave Tc = 130 °C 20 A IFSM Surge non repetitive forward current tp = 10 ms sinusoidal 200 A PARM Repetitive peak avalanche power tp = 10 µs, Tj = 125 °C 619 W Tstg Storage temperature range -65 to +175 °C Tj Maximum operating junction temperature (1) 175 °C 1. (dPtot/dTj) < (1/Rth(j-a)) condition to avoid thermal runaway for a diode on its own heatsink. Table 2. Thermal resistance parameters Symbol Parameter Value Unit Rth(j-c) Junction to case 2.2 °C/W Table 3. Static electrical characteristics Symbol Parameter Test conditions Min. Typ. Max. Unit Tj = 25 °C - 20 µA IR(1) Reverse leakage current VR = VRRM Tj = 125 °C - 3 10 mA Tj = 25 °C - 0.70 IF = 5 A Tj = 125 °C - 0.54 0.58 Tj = 25 °C - 0.80 VF(2) Forward voltage drop IF = 10 A V Tj = 125 °C - 0.62 0.66 Tj = 25 °C - 0.93 IF = 20 A Tj = 125 °C - 0.72 0.76 1. Pulse test: tp = 5 ms, δ < 2% 2. Pulse test: tp = 380 µs, δ < 2% To evaluate the conduction losses, use the following equation: P = 0.56 x I + 0.010 x I 2 F(AV) F (RMS) For more information, please refer to the following application notes related to the power losses : • AN604: Calculation of conduction losses in a power rectifier • AN4021: Calculation of reverse losses on a power diode DS4232 - Rev 2 page 2/9

STPS20120D Characteristics (curves) 1.1 Characteristics (curves) Figure 1. Average forward power dissipation versus Figure 2. Average forward current versus ambient average forward current temperature (δ = 0.5) 28 PF(AV)(W) 22 IF(AV)(A) 26 δ = 0.05 δ = 0.1 δ = 0.2 δ = 0.5 20 Rth(j-a) = Rth(j-c) 24 22 δ = 1 18 20 16 18 14 16 14 12 Rth(j-a) = 15°C/W 12 10 10 8 8 6 6 T T 4 4 02 IF(AV)(A) δ=tp/T tp 02 δ=tp/T tp Tamb(°C) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 0 25 50 75 100 125 150 175 Figure 4. Relative variation of thermal impedance junction Figure 3. Normalized avalanche power derating versus to case versus pulse duration pulse duration (T = 125 °C) j PPAR(1M0(t pµ)s) 1.0 Zth(j-c)/Rth(j-c) 1 ARM 0.9 0.8 0.7 0.1 0.6 0.5 0.4 0.01 0.3 0.2 0.1 Single pulse tP(s) tp(µs) 0.0 0.001 1.E-03 1.E-02 1.E-01 1.E+00 1 10 100 1000 DS4232 - Rev 2 page 3/9

STPS20120D Characteristics (curves) Figure 5. Reverse leakage current versus reverse voltage Figure 6. Junction capacitance versus reverse voltage applied (typical values) applied (typical values) IR(mA) C(pF) 1.E+02 1000 F = 1 MHz 1.E+01 Tj= 150 °C VOSTC j== 3205 m°CVRMS 1.E+00 Tj= 125 °C 1.E-01 Tj= 100 °C Tj= 75 °C 100 1.E-02 Tj= 50 °C 1.E-03 Tj= 25 °C 1.E-04 VR(V) VR(V) 1.E-05 10 0 10 20 30 40 50 60 70 80 90 100 110 120 1 10 100 Figure 7. Forward voltage drop versus forward current I (A) F 100 (MaTxijm= u1m25 v °aClues) (TyTpji=c a1l2v5a l°uCes) (MaxTimj=u 2m5 v°aClues) 10 VF(V) 1 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 DS4232 - Rev 2 page 4/9

STPS20120D 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 TO-220AC package information • Epoxy meets UL 94,V0 • Cooling method: by conduction (C) • Recommended torque value: 0.55 N·m • Maximum torque value: 0.70 N·m Figure 8. TO-220AC package outline H2 A C Ø I Gate note (1)(2) L5 L7 L6 L2 D F1 L9 L4 Gate note (1)(2) F M E G (1) :M ax resin gate protusion 0.5 mm (2) :R esin gate position is accepted in each of the two positions shown on the drawings or their symmetrical DS4232 - Rev 2 page 5/9

STPS20120D TO-220AC package information Table 4. TO-220AC package mechanical data Dimensions Ref. Millimeters Inches (for reference only) Min. Max. Min. Max. A 4.40 4.60 0.173 0.181 C 1.23 1.32 0.048 0.051 D 2.40 2.72 0.094 0.107 E 0.49 0.70 0.019 0.027 F 0.61 0.88 0.024 0.034 F1 1.14 1.70 0.044 0.066 G 4.95 5.15 0.194 0.202 H2 10.00 10.40 0.393 0.409 L2 16.40 typ. 0.645 typ. L4 13.00 14.00 0.511 0.551 L5 2.65 2.95 0.104 0.116 L6 15.25 15.75 0.600 0.620 L7 6.20 6.60 0.244 0.259 L9 3.50 3.93 0.137 0.154 M 2.60 typ. 0.102 typ. Diam 3.75 3.85 0.147 0.151 DS4232 - Rev 2 page 6/9

STPS20120D Ordering information 3 Ordering information Table 5. Ordering information Order code Marking Package Weight Base qty. Delivery mode STPS20120D STPS20120D TO-220AC 1.86 g 50 Tube DS4232 - Rev 2 page 7/9

STPS20120D Revision history Table 6. Document revision history Date Version Changes 18-Feb-2005 1 First issue. Removed figure 4 and figure 5. Updated Figure 3. Normalized avalanche power derating versus pulse 02-Jul-2018 2 duration (Tj = 125 °C) and Table 1. Absolute ratings (limiting values at 25 °C unless otherwise specified). Minor text changes to improve readability. DS4232 - Rev 2 page 8/9

STPS20120D 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 DS4232 - Rev 2 page 9/9

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