SMF Series
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Transient Voltage Suppression Diodes The SMF series is designed specifically to protect sensitive electronic equipment from voltage transients 200 W peak pulse capability at 10/1000 μS waveform, repetition rate (duty cycles):0.01% induced by lightning and other transient voltage events. SMF package is 50% smaller in footprint when compare Compatible with industrial standard package SOD123FL to SMA package and delivering one of the low height Low profile: maximum height of 1.2 mm Low inductance, excellent clamping capability For surface mounted applications to optimize board space High temperature to reflow soldering guaranteed: 260 °C / 40 sec Communication Equipment Security & Protection Industrial Control Equipment Power Supply Typical failure mode is short from over-specified voltage or current Whisker test is conducted based on JEDEC JESD201A per its table 4a and 4c Automotive Electronics ESD protection of data lines in accordance with IEC Lightning Protection EFT protection of data lines in accordance with IEC 61000-4-4 Functional Diagram Fast response time: typically less than 1.0 ns from 0 Volts to VBR min Matte tin lead–free plated Halogen-free and RoHS compliant Plastic package is flammability rated V-0 per UL 94 Built-in strain relief Glass passivated junction Pb-free E3 means 2nd level interconnect is Pb-free and the terminal finish material is tin(Sn) (IPC/ JEDEC JSTD-609A.01) E-mail : sales@SETfuse.com All Rights Reserved by Xiamen SET Electron

Transient Voltage Suppression Diodes Package Outline Dimensions (SOD-123FL) Millimeters Symbol Maximum Ratings and Characteristics (TA = 25 °C unless otherwise specified.) Peak Pulse Power Dissipation at TA=25 °C (Note 1) Power Dissipation On Infinite Heat Sink at TL=50 °C Thermal Resistance Junction- to- Ambient Thermal Resistance Junction- to- Lead Operating Temperature Range Storage Temperature Range Notes Non-repetitive current pulse, per Fig. 4 and derated above TJ (initial)=25 °C per Fig. SMF90A~SMF100A Peak Pulse Power Dissipation is 170 W min, 200 W typical @ 10/1000 uS. E-mail :...

Transient Voltage Suppression Diodes Part Numbering System SMF xx C A 5% VBR Voltage Tolerance Bi-directional VR Voltage Series Code Cathode Band Trace Code Marking Y: Year Code M: Month Code XXX: Lot Code Marking Code E-mail : sales@SETfuse.com All Rights Reserved by Xiamen SET Electronics Co., Ltd. 2021-2023 V2.4 3

Transient Voltage Suppression Diodes Glossary Description Item Clamping Voltage VC Voltage across TVS in a region of low differential resistance that serves to limit the voltage across the device terminals. Reverse Stand-off Voltage Maximum voltage that can be applied to the TVS without operation. NOTE : It is also shown as VWM (maximum working voltage (maximum d.c. voltage)) and known as rated standoff voltage (Vso). Reverse Leakage Current Current measured at VR. Breakdown Voltage Voltage across TVS at a specified current IT in the breakdown region. Rated Random Recurring Peak Impulse...

Transient Voltage Suppression Diodes Electrical Characteristics (TA=25 °C unless otherwise noted )Table 1 Part Number Device Marking Code Breakdown Voltage VBR@IT Min Max. Peak Pulse Current IPPM Max. Clamping Voltage VC@IPPM Max. Reverse Leakage IR@VR E-mail : sales@SETfuse.com All Rights Reserved by Xiamen SET Electronics Co., Ltd. 2021-2023 V2.4 5 Test Reverse Current Stand-off IT Voltage VR

Transient Voltage Suppression Diodes Part Number Device Marking Code Breakdown Voltage VBR@IT Min Test Reverse Current Stand-off IT Voltage VR Max. Reverse Leakage IR@VR Max. Peak Pulse Current IPPM Max. Clamping Voltage VC@IPPM Notes: 1. VBR measured after IT applied for 300 μS, IT = square wave pulse or equivalent. 2. Surge current waveform per 10/1000 μS exponential wave and derated per Fig.2. 3. All terms and symbols are consistent with ANSI/IEEE C62.35. 4. For bidirectional type having VR of 10 volts and less, the IR should be doubled. E-mail : sales@SETfuse.com All Rights Reserved by...

Transient Voltage Suppression Diodes Performance Curve for Reference(TA=25 °C unless otherwise noted) 10 PPPM - Peak Pulse Power (KW) Voltage Transient Time td – Pulse Width (s) FIGURE 2 Peak Pulse Power Rating Curve FIGURE 1 TVS Transients Clamping Waveform 150 IPPM - Peak Pulse Current, % IRSM Peak Pulse Power (PPP) or Current (IPPM) Derating in Percentage, % FIGURE 3 Peak Pulse Power Derating Curve 100 Half Value IPPM/2 10/1000 μs Waveform as defined by R.E.A. TJ –Initial Junction Temperature (°C ) Peak Value IPPM TJ = 25 °C Pulse Width (td) is defined as the Point where the Peak Current...

Transient Voltage Suppression Diodes Vf - Typical forward dropped voltage Uni/Bi-directional V=VR FIGURE 5 Forward Voltage VBR – Reverse Breakdown Voltage (V) FIGURE 6 Typical Junction Capacitance IFSM - Peak Forward Surge Current (A) IF– Peak Forward Current (A) VF– Peak Forward Voltage (V) FIGURE 7 Peak Forward Drop vs Peak Forward Current (Typical Values) FIGURE 8 Maximum Non-Repetitive Forward Surge Current Uni-Directional only Environmental Specifications High Temp. Storage Temperature Cycling Physical Specifications Case Polarity Color band denotes cathode except bipolar E-mail :...

Transient Voltage Suppression Diodes Soldering Parameters tS Preheat 25 °C t 25 °C to Peak Time (t) Reflowing Condition Reflow Soldering Parameters Lead-Free Assembly Temperature Min (TS (min)) Temperature Max (TS (max)) Time (min to max) (tS) Average Ramp Up Rate (Liquidus Temp (TL) to Peak Time of within 5 °C of Actual Peak Temperature (tP) Ramp-down Rate Time from 25 °C to Peak Temperature Do Not Exceed E-mail : sales@SETfuse.com All Rights Reserved by Xiamen SET Electronics Co., Ltd. 2021-20

Transient Voltage Suppression Diodes Packaging Information Cover tape Dimensions are in inches (and millimeters). Part Number QTY's (Reel) Packaging Option Packaging Specification Tape & Reel – 8 mm tape/7” reel E-mail : sales@SETfuse.com All Rights Reserved by Xiamen SET Electronics Co., Ltd. 2021-2023 V2.4 1