SMTYF18A

SMTYF Low forward voltage TVS Transky™ Features ■ High peak pulse power: – 600 W (10/1000 µs) – 4000 W (8/20 µs) ■ Stand-off voltage 5 or 12 V ■ Low forward voltage: 0.48 V @ 0.85 A @ 25 °C ■ Low clamping factor VCL/VBR ■ Fast response time ■ Very thin package (1.0 mm overall component height) ■ ECOPACK2® halogen-free package K A A K Unidirectional Complies with the following standards: ■ IEC 61000-4-2 level 4: – 15 kV (air discharge) – 8 kV (contact discharge) ■ MIL STD 883E- Method 3015-7: class 3C – Human body model SMAflat Description The Transky is designed specifically for portable equipment and miniaturized electronic devices subject to ESD transient overvoltages. The Transky combines the performance of a Transil™ or TVS (transient voltage supressor) and low forward voltage Schottky diode in a monolithic structure. TM: Transky is a trademark of STMicroelectronics. TM: Transil is a trademark of STMicroelectronics. September 2008 Rev 1 1/8 www.st.com 8 Characteristics SMTYF 1 Characteristics Table 1. Absolute ratings (limiting values at 25 °C, unless otherwise specified) Symbol Parameter Value Unit VPP IEC 61000-4-2 standard Air discharge Contact discharge 15 8 kV PPP Peak pulse power dissipation(1) Tj initial = Tamb 600 W IFSM Non repetitive surge peak forward current tp = 10 ms Tj = Tinitial = Tamb 25 A Tstg Storage temperature range -65 to +175 °C Operating junction temperature range -40 to +175 °C Value Unit 20 °C/W Tj 1. 10/1000 µs pulse waveform Table 2. Thermal resistance Symbol Parameter Junction to leads Rth(j-l) Table 3. Electrical characteristics - parameters (Tamb = 25 °C) Symbol Parameter VBR Breakdown voltage IRM Leakage current @ VRM VRM Stand-off voltage VCL Clamping voltage Rd Dynamic resistance IPP Peak pulse current C I IF VCL VBR VRM VF IPP Capacitance Table 4. V IRM IR Electrical characteristics - values (Tamb = 25 °C) VF max I max@VRM (IF = 0.85 A) RM Type 25 °C 85 °C V VCL @IPP RD(2) VCL @IPP RD(2) αT(3) 10/1000 µs 10/1000 µs 8/20 µs 8/20 µs VBR @IR(1) min typ max µA (max) V V max mA max V A Ω V max A Ω 10-4/°C SMTYF5.0A 0.48 10 500 5 6.40 6.74 7.07 10 9.2 68 0.029 13.4 298 0.021 5.7 SMTYF12A 0.48 20 1200 12 13.2 13.7 14.3 1 18.5 31 0.129 22.9 157 0.055 7.8 1. Pulse test: tp