L V 8 8 Features n Surface Mount SO-23FL package n Standoff Voltage: 2 to 58 volts n Power issipation: 4 watts n RoHS compliant* pplications n Protection of power buses n Protection of /O interfaces n Overvoltage transient protection n Telecom, computer, industrial and consumer electronics applications eneral nformation ourns offers Transient Voltage Suppressor iodes for surge and S protection applications, in compact chip package SO-23FL size format. The Transient Voltage Suppressor series offers a choice of Working Peak Voltage from 2 V up to 58 V. Typical fast response times are less than. picosecond from V to reakdown Voltage. ourns hip iodes conform to J standards, are easy to handle with standard pick and place equipment and the flat configuration minimizes roll away. bsolute Ratings (@ T = 25 Unless Otherwise Noted) Parameter Symbol Value Unit Peak Pulse Power issipation (/ µs) P PPM 4 W Peak Forward Surge urrent 8.3 ms Single Half Sine Wave Superimposed on Rated Load (J Method) FSM 5 Operating Temperature Range T J -55 to +5 Storage Temperature Range T ST -55 to +5 Non-repetitive current pulse, per Pulse Waveform graph and derated above T = 25. lectrical haracteristics (@ T = 25 Unless Otherwise Noted) Unidirectional evice reakdown Voltage V R (Volts) Working Peak Voltage Leakage @ V RWM Voltage @ RSM Surge urrent Part No. Marking Min. Max. @ T (m) V RWM (V) R (μ) V RSM (V) RSM () SMF4L2 L 3.3 4.7. 2. 9.9 2. SMF4L3 L 4.4 5.9. 3. 2.5 8.6 SMF4L4 LK 5.6 7.2. 4. 23.2 7.2 SMF4L5 LM 6.7 8.5. 5. 24.4 6.4 SMF4L6 LP 7.8 9.7. 6. 26. 5.4 SMF4L7 LR 8.9 2.9. 7. 27.6 4.5 SMF4L8 LT 2. 22.. 8. 29.2 3.7 SMF4L2 LV 22.2 24.5. 2. 32.4 2.3 SMF4L22 LX 24.4 26.9. 22. 35.5.3 SMF4L24 LZ 26.7 29.5. 24. 38.9.3 SMF4L26 M 28.9 3.9. 26. 42. 9.5 SMF4L28 M 3. 34.4. 28. 45.4 8.8 SMF4L3 MK 33.3 36.8. 3. 48.4 8.3 SMF4L33 36.7 4.6. 33. 53.3 7.5 SMF4L36 MP 4. 44.2. 36. 58. 6.9 SMF4L4 MR 44.4 49.. 4. 64.5 6.2 SMF4L43 MT 47.8 52.8. 43. 69.4 5.8 SMF4L45 MV 5. 55.3. 45. 72.7 5.5 SMF4L48 MX 53.3 58.9. 48. 77.4 5.2 SMF4L5 MZ 56.7 62.7. 5. 82.4 4.9 SMF4L54 N 6. 66.3. 54. 87. 4.6 SMF4L58 N 64.4 7.2. 58. 93.6 4.3 WRNN ancer and Reproductive Harm - www.p65warnings.ca.gov *RoHS irective 25/863, Mar 3, 25 and nnex. ** Q part number suffix for automotive and other applications requiring appropriate -Q compliance.
Performance raphs Peak Pulse Power erating urve Non-Repetitive Surge urrent P PPM - Peak Pulse Power (kw) Non-repetitive pulse waveform shown at right, T = 25 Peak Pulse Power erating in Percent of Peak Power or urrent 87.5 75 62.5 5 37.5 25 2.5.. µs. µs µs µs ms ms 25 5 75 25 5 75 t d - Pulse Width (sec.) T - mbient Temperature ( ) Pulse Waveform Steady State Power erating urve TR = µs.2 P - Peak Pulse urrent (%) 5 T = 25 TP Peak value (RSM) Half value = RSM/2 Pulse width (TP) is defined as that point where the peak current decays to 5 % of RSM x waveform as defined by R... Steady State Power issipation (W).8.6.4.2. 2. 3. 4. T - Time (ms) 25 5 75 25 5 75 T L - Lead Temperature ( )
Product imensions Recommended Footprint H imension H Typical Part Marking MNSONS: (NHS) SMF (SO-23FL).65 ±.25 (.65 ±.) 3.7 ±.5 (.46 ±.6).25 ±.225 (.44 ±.9) 2.825 ±.275 (. ±.).775 ±.275 (.3 ±.).4 ±.5 (.6 ±.6).75 ±.75 (.7 ±.3).55 ±.5 (.22 ±.6) imension (Max.) (Min.) (Min.) MNSONS: Physical Specifications (NHS) SMF (SO-23FL) 2.36 (.93).22 (.48).9 (.36) ase.. Molded plastic per UL lass 94V- Polarity... athode band indicates unidirectional device How to Order Package SMF4L = 4 W SMF/SO-23FL Package Working Peak Voltage 2 = 2 V RWM (Volts) Suffix = 5 % Tolerance Unidirectional evice SMF4L 2 XX YM THO N MNUFTURR S TRMRK V O (MRKN O FN ON P ) T O: MONTH N YR OF MNUFTUR Y: YR (LST T) M: MONTH (JN-SPT = -9, OT- =,,) nvironmental Specifications Moisture Sensitivity Level.. S lassification (HM)... 3
Packaging nformation The product will be dispensed in tape and reel format (see diagram below). P P d ndex Hole T 2 F W 2 P Trailer evice Leader nd pitches (min.) pitches (min.) irection of Feed Start MNSONS: (NHS) evices are packed in accordance with 48 standard specifications shown here. W tem Symbol SMF4L Series arrier Width.9 ±.2 (.75 ±.8) arrier Length 4. ±.2 (.58 ±.8) arrier epth.32 ±.2 (.52 ±.8) Sprocket Hole d.5 +. / -. (.59 +.4 / -.) Reel Outside iameter 78 (7.8) 5. Reel nner iameter (.969) MN. 3. +.5 / -.2 Feed Hole iameter 2 (.52 +.2 / -.8) Sprocket Hole Position.75 ±. (.69 ±.4) Punch Hole Position F 3.5 ±.5 (.38 ±.2) Punch Hole Pitch P 4. ±. (.57 ±.4) 4. ±. Sprocket Hole Pitch P (.57 ±.4) 2. ±.5 mbossment enter P (.79 ±.2) Overall Tape Thickness T.4 (.6) MX. Tape Width W 8. ±.3 (.35 ±.2) 4.4 Reel Width W (5.669) MX. Quantity per Reel -- 2,5 sia-pacific: Tel: +886-2 2562-47 mail: asiacus@bourns.com urope: Tel: +36 88 885 877 mail: eurocus@bourns.com The mericas: Tel: +-95 78-55 mail: americus@bourns.com www.bourns.com 4/9
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