Transient Suppression Diodes LCE Series RoHS Pb e3 Uni-directional Description The LCE Series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. Features Agency Approvals AGENCY AGENCY FILE NUMBER E23531 Ratings and Thermal Characteristics (T A =25 O C unless otherwise noted Parameter Symbol Value Unit Peak Pulse Power Dissipation by 1/μs Test Waveform (Fig.1 (Note 1 P PPM 15 W Steady State Power Dissipation on Infinite Heat Sink at T L =75ºC (Fig. 5 Operating Junction and Storage Temperature Range P D 6.5 W T J, T STG -65 to 175 C Note: 1. Non-repetitive current pulse, per Fig. 3 and derated above T J (initial = 25 O C per Fig. 2. 15W peak pulse power capability at 1/μs waveform, repetition rate (duty cycles:.1% Glass passivated chip junction in DO-21 Package Fast response time: typically less than 1.ps from Volts to BV min Excellent clamping capability Typical failure mode is short from over-specified voltage or current Whisker test is conducted based on JEDEC JESD21A per its table 4a and 4c IEC-6-4-2 ESD 3kV(Air, 3kV (Contact ESD protection of data lines in accordance with IEC 6-4-2 EFT protection of data lines in accordance with IEC 6-4-4 Low incremental surge resistance High temperature to reflow soldering guaranteed: 26 C/4sec /.375,(9.5mm lead length, 5 lbs., (2.3kg tension Plastic package is flammability rated V- per Underwriters Laboratories Matte tin lead free plated Ideal for data line applications Halogen free and RoHS compliant Pb-free E3 means 2nd level interconnect is Pb-free and the terminal finish material is tin(sn (IPC/JEDEC J-STD- 69A.1 Additional Infomarion Applications Datasheet Resources Samples TVS devices are ideal for the protection of I/O interfaces, V CC bus and other vulnerable circuits used in telecom, computer, industrial and consumer electronic applications.
Transient Suppression Diodes Electrical Characteristics (T A =25 C unless otherwise noted Part Number Reverse Stand off V R Breakdown V BR MIN MAX Test Current I T (ma Reverse Leakage I R @ V R (µa Clamping at I pp V C Peak Pulse Current (Fig.3 I PPM (A Junction Capacitance @ Volts (pf Working V WIB Leakage Current at I IB @ V WIB (ma Peak V PIB LCE6.5A 6.5 7.22 7.98 1 11.2. 75 1. X LCE7.A 7. 7.78 8.6 1 5 12.. 75 1. X LCE7.5A 7.5 8.33 9.21 1 25 12.9. 75 1. X LCE8.A 8. 8.89 9.83 1 13.6. 75 1. X LCE8.5A 8.5 9.44 1.4 1 5 14.4. 75 1. X LCE9.A 9. 1. 11.1 1 1 15.4 97. 75 1. X LCE1A 1. 11.1 12.3 1 5 17. 88. 75 1. X LCE11A 11. 12.2 13.5 1 1 18.2 82. 75 1. X LCE12A 12. 13.3 14.7 1 1 19.9 75. 75 1. X LCE13A 13. 14.4 15.9 1 1 21.5 7. 75 1. X LCE14A 14. 15.6 17.2 1 1 23.2 65. 75 1. X LCE15A 15. 16.7 18.5 1 1 24.4 61. 75 1. X LCE16A 16. 17.8 19.7 1 1 26. 57. 75 1. X LCE17A 17. 18.9 2.9 1 1 27.6 54. 75 1. X LCE18A 18. 2. 22.1 1 1 29.2 51. 75 1. X LCE2A 2. 22.2 24.5 1 1 32.4 46. 75 1. X LCE22A 22. 24.4 26.9 1 1 35.5 42. 75 1. X LCE24A 24. 26.7 29.5 1 1 38.9 39. 75 1. X LCE26A 26. 28.9 31.9 1 1 42.1 36. 75 1. X LCE28A 28. 31.1 34.4 1 1 45.5 33. 75 1. X LCE3A 3. 33.3 36.8 1 1 48.4 31. 75 1. X LCE33A 33. 36.7 4.6 1 1 53.3 28.1 75 1. X LCE36A 36. 4. 44.2 1 1 58.1 25.8 75 1. X LCE4A 4. 44.4 49.1 1 1 64.5 23.3 75 1. X LCE43A 43. 47.8 52.8 1 1 69.4 21.6 75 1. X LCE45A 45. 5. 55.3 1 1 72.7 2.6 75 1. X LCE48A 48. 53.3 58.9 1 1 77.4 19.4 75 1. X LCE51A 51. 56.7 62.7 1 1 82.4 18.2 75 1. X LCE54A 54. 6. 66.3 1 1 87.1 17.2 1. 125 X LCE58A 58. 64.4 71.2 1 1 93.6 16. 1. 125 X LCE6A 6. 66.7 73.7 1 1 96.8 15.5 1. 125 X LCE64A 64. 71.1 78.6 1 1 13. 14.6 1. 125 X LCE7A 7. 77.8 86. 1 1 113. 13.3 125 1. 15 X LCE75A 75. 83.3 92.1 1 1 121. 12.4 125 1. 15 X LCE85A 85. 94.4 14. 1 1 129. 11.6 125 1. 15 X LCE9A 9.. 111. 1 1 146. 1.3 125 1. 15 X Agency Approval Note: For parts without A, the V BR is ±1% and V C is 5% higher than with A parts.
Transient Suppression Diodes Ratings and Characteristic Curves (T A =25 C unless otherwise noted Figure 1 - Peak Pulse Power Rating Figure 2 - Peak Pulse Power Derating Curve P PPM - Peak Pulse Power (kw 1 1.1.1.1.1.1 t d -Pluse Width (Sec. Peak Pulse Power (P PP or Current (I PP Derating in Percentage % 8 6 4 2 25 5 75 125 15 175 T J - Initial Junction Temperature (ºC Figure 3 - Pulse Waveform Figure 4 - AC Line Protection Application I PPM - Peak Pulse Current, % I RSM 15 5 tr=1µsec Peak Value IPPM Half Value IPPM 2 IPPM ( TJ=25 C Pulse Width(td is defined as the point where the peak current decays to 5% of IPPM 1/µsec. Waveform as defined by R.E.A Low Capacitance TVC td 1. 2. 3. 4. t-time (ms Application Note: Device must be used with two units in parrellel, opposite in polarity as shown on circuit for AC signal lin protection.
Temperature (T Transient Suppression Diodes Soldering Parameters Reflow Condition Lead free assembly T P t p Pre Heat - Temperature Min (T s(min 15 C - Temperature Max (T s(max 2 C T L Ramp-up t L Critical Zone T L to T P - Time (min to max (t s 6 18 secs T s(max Average ramp up rate (Liquidus Temp (T A to peak 3 C/second max T s(min t s Preheat Ramp-down T S(max to T A - Ramp-up Rate Reflow - Temperature (T A (Liquidus 217 C 3 C/second max - Time (min to max (t s 6 15 seconds 25 C t 25 C to Peak Time (t Peak Temperature (T P 26 +/-5 C Time within 5 C of actual peak Temperature (t p 2 4 seconds Flow/Wave Soldering (Solder Dipping Ramp-down Rate 6 C/second max Peak Temperature : 265 O C Time 25 C to peak Temperature (T P 8 minutes Max. Dipping Time : 1 seconds Do not exceed 26 C Soldering : 1 time Physical Specifications Environmental Specifications Weight.45oz., 1.2g High Temp. Storage JESD22-A13 Case JEDEC DO-21 molded plastic body over passivated junction. HTRB JESD22-A18 Polarity Color band denotes the cathode except Bipolar. Temperature Cycling JESD22-A14 Terminal Matte Tin axial leads, solderable per JESD22-B12. H3TRB RSH JESD22-A11 JESD22-B16 Dimensions D C Dimensions Inches Millimeters Min Max Min Max A 1. - 25.4 - B.285.375 7.2 9.5 A B A C.38.42.96 1.7 D.19.21 4.8 5.3 DO-21
Transient Suppression Diodes Part Numbering System Part Marking System LCE xxx A X OPTION CODE: BLANK Reel Tape -B Bulk Packaging TYPE CODE: A Uni-Directional (5% V BR Tolerance V R VOLTAGE CODE (Refer to the Electrical Characteristics table SERIES CODE Cathode Band Littelfuse Logo F YYWW LCEXXX Trace Code Marking YY:Year Code WW: Week Code Product Type Packaging Part Number Component Package Quantity Packaging Option Packaging Specification LCExxxXX DO-21 12 Tape & Reel EIA STD RS-296 LCExxxXX-B DO-21 5 BULK Littelfuse Spec. Schematic Transient Suppressor Diode Tape and Reel Specification 2.56 (65. Off Center either side 2.63+.79/-.39 (53.+2./-1..28(.7.394+/-.2 (1.+/-.5 13. (33.2.47 (1.2.236 (6. Dimensions are in inches/mm 3. (76.2 2.75 (69.85.68 (17.27 Recess Depth Max..75 (19.5 Direction of Feed