Transient Voltage Suppression Diodes. Surface Mount 400W > SMAJ series. Description. Features. less than 1μA when V BR.

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1 SMAJ Series RoHS Pb e3 Uni-directional Description Bi-directional The SMAJ series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. Agency Approvals AGENCY AGENCY FILE NUMBER E23531 Maximum Ratings and Thermal Characteristics (T A =25 O C unless otherwise noted Parameter Symbol Value Unit Peak Pulse Power Dissipation at T A =25ºC by 1/µs Waveform P PPM 4 W (Fig.2(Note 1, (Note 2, (Note 5 Power Dissipation on Infinite Heat Sink at T L =5 O C P D 3.3 W Peak Forward Surge Current, 8.3ms Single Half Sine Wave (Note 3 I FSM 6 A Maximum Instantaneous Forward Voltage at 25A for Unidirectional V F 3.5/5. V Only (Note 4 Operating Temperature Range T J -65 to 15 C Storage Temperature Range T STG -65 to 175 C Typical Thermal Resistance Junction to Lead Typical Thermal Resistance Junction to Ambient R θjl 3 C/W R θja 12 C/W Features 4W Peak pulse power capability at 1/µs waveform, repetition rate (duty cycle:.1% Excellent clamping capability Typical I R less than 1μA when V BR min>12v For surface mounted applications to optimize board space Low profile package 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 ESD 3kV(Air, 3kV (Contact ESD protection of data lines in accordance with IEC EFT protection of data lines in accordance with IEC Built-in strain relief Fast response time: typically less than 1.ps from Volts to V BR min Glass passivated junction Low inductance High temperature to reflow soldering guaranteed: 26 C/4sec V T J = V C x (1+αT x (T J - 25 (αt:temperature Coefficient, typical value is.1% Plastic package is flammability rated V- per Underwriters Laboratories Meet MSL level1, per J-STD-2, LF maximun peak of 26 C Matte tin lead free Plated 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 Notes: 1. Non-repetitive current pulse, per Fig.4 and derated above T J (initial =25ºC per Fig Mounted on 5.x5.mm copper pad to each terminal. 3. Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional device only. 4. V F < 3.5V for single die parts and V F < 5.V for stacked-die parts. 5. The P PPM of stacked-die parts is 6W and please contact littelfuse for the detail stacked-die parts. Functional Diagram Applications 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. Additional Infomarion Bi-directional Datasheet Resources Samples Cathode Anode Uni-directional

2 Electrical Characteristics (T A =25 C unless otherwise noted Part Number (Uni Part Number (Bi Marking Reverse Stand off Voltage V R Breakdown Voltage V BR I T UNI BI (Volts MIN MAX Test Current I T (ma Maximum Clamping Voltage V I pp (V Maximum Peak Pulse Current I pp (A Maximum Reverse Leakage I V R (µa SMAJ5.A SMAJ5.CA AE WE X SMAJ6.A SMAJ6.CA AG WG X SMAJ6.5A SMAJ6.5CA AK WK X SMAJ7.A SMAJ7.CA AM WM X SMAJ7.5A SMAJ7.5CA AP WP X SMAJ8.A SMAJ8.CA AR WR X SMAJ8.5A SMAJ8.5CA AT WT X SMAJ9.A SMAJ9.CA AV WV X SMAJ1A SMAJ1CA AX WX X SMAJ11A SMAJ11CA AZ WZ X SMAJ12A SMAJ12CA BE XE X SMAJ13A SMAJ13CA BG XG X SMAJ14A SMAJ14CA BK XK X SMAJ15A SMAJ15CA BM XM X SMAJ16A SMAJ16CA BP XP X SMAJ17A SMAJ17CA BR XR X SMAJ18A SMAJ18CA BT XT X SMAJ2A SMAJ2CA BV XV X SMAJ22A SMAJ22CA BX XX X SMAJ24A SMAJ24CA BZ XZ X SMAJ26A SMAJ26CA CE YE X SMAJ28A SMAJ28CA CG YG X SMAJ3A SMAJ3CA CK YK X SMAJ33A SMAJ33CA CM YM X SMAJ36A SMAJ36CA CP YP X SMAJ4A SMAJ4CA CR YR X SMAJ43A SMAJ43CA CT YT X SMAJ45A SMAJ45CA CV YV X SMAJ48A SMAJ48CA CX YX X SMAJ51A SMAJ51CA CZ YZ X SMAJ54A SMAJ54CA RE ZE X SMAJ58A SMAJ58CA RG ZG X SMAJ6A SMAJ6CA RK ZK X SMAJ64A SMAJ64CA RM ZM X SMAJ7A SMAJ7CA RP ZP X SMAJ75A SMAJ75CA RR ZR X SMAJ78A SMAJ78CA RT ZT X SMAJ85A SMAJ85CA RV ZV X SMAJ9A SMAJ9CA RX ZX X SMAJA SMAJCA RZ ZZ X SMAJ11A SMAJ11CA SE VE X SMAJ12A SMAJ12CA SG VG X SMAJ13A SMAJ13CA SK VK X SMAJ15A SMAJ15CA SM VM X SMAJ16A SMAJ16CA SP VP X SMAJ17A SMAJ17CA SR VR X SMAJ18A SMAJ18CA ST VT SMAJ2A SMAJ2CA SV VV SMAJ22A SMAJ22CA SX VX SMAJ25A SMAJ25CA SZ VZ SMAJ3A SMAJ3CA TE UE SMAJ35A SMAJ35CA TG UG SMAJ4A SMAJ4CA TK UK SMAJ44A SMAJ44CA TM UM For bidirectional type having V R of 1 volts and less, the I R limit is double. For parts without A, the V BR is ± 1% and V C is 5% higher than with A parts Agency Approval

3 I-V Curve Characteristics Uni-directional Bi-directional Ipp Vc VBR VR IR IT VF V Vc VBR VR IT IR IR IT VRVBR Vc V Ipp Ipp P PPM Peak Pulse Power Dissipation -- Max power dissipation V R Stand-off Voltage -- Maximum voltage that can be applied to the TVS without operation V BR Breakdown Voltage -- Maximum voltage that flows though the TVS at a specified test current (I T V C Clamping Voltage -- Peak voltage measured across the TVS at a specified Ippm (peak impulse current I R V F Reverse Leakage Current -- Current measured at V R Forward Voltage Drop for Uni-directional Ratings and Characteristic Curves (T A =25 C unless otherwise noted Figure 1 - TVS Transients Clamping Waveform Figure 2 - Peak Pulse Power Rating Curve Voltage Transients Voltage or Current Voltage Across TVS Current Through TVS P PPM -Peak Pulse Power (kw 1 1 Single die,4w at 1xµs, 25 C TJ initial = Tamb stacked-die, 6W at 1xµs, 25 C t d -Pulse Width (ms Time continues on next page.

4 Ratings and Characteristic Curves (T A =25 C unless otherwise noted (Continued Figure 3 - Peak Pulse Power Derating Curve Figure 4 - Pulse Waveform Peak Pulse Power (P PP or Current (I PP Derating in Percentage % T J - Initial Junction Temperature (ºC I PPM - Peak Pulse Current, % I RSM 15 5 td 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 t-time (ms Figure 5 - Typical Junction Capacitance Figure 6 - Typical Transient Thermal Impedance Cj (pf 1 1 Uni-direc onal V=V Uni/Bi-direc onal V=V R Bi-direc onal V=V 1 1 V BR - Reverse Breakdown Voltage (V Transient Thermal Impedance ( C/W T -Pulse Duration (s P Figure 7 - Maximum Non-Repetitive Forward Surge Current Uni-Directional Only Figure 8 - Peak Forward Voltage Drop vs Peak Forward Current (Typical Values 7. IFSM - Peak Forward Surve Current (A IF-Peak Forward Current (A Single die Stacked-die 1 1 Number of Cycles at 6 Hz VF-Peak Forward Voltage(V

5 Temperature (T Transient Voltage Suppression Diodes Soldering Parameters Reflow Condition Pre Heat Physical Specifications Lead free assembly - Temperature Min (T s(min 15 C - Temperature Max (T s(max 2 C - Time (min to max (t s 6 18 secs Average ramp up rate (Liquidus Temp (T A to peak T S(max to T A - Ramp-up Rate Reflow - Temperature (T A (Liquidus 217 C 3 C/second max 3 C/second max - Time (min to max (t s 6 15 seconds Peak Temperature (T P 26 +/-5 C Time within 5 C of actual peak Temperature (t p 2 4 seconds Ramp-down Rate 6 C/second max Time 25 C to peak Temperature (T P 8 minutes Max. Do not exceed 26 C T P T L T s(max T s(min 25 C t s Preheat t 25 C to Peak Environmental Specifications High Temp. Storage HTRB Ramp-up Time (t t p JESD22-A13 JESD22-A18 t L Critical Zone T L to T P Ramp-down Weight Case Polarity.2 ounce,.61 gram JEDEC DO-214AC Molded Plastic over glass passivated junction Color band denotes cathode except Bipolar Temperature Cycling JESD22-A14 MSL JEDEC-J-STD-2, Level 1 H3TRB JESD22-A11 Terminal Matte Tin-plated leads, Solderable per JESD22-B12 RSH JESD22-A111 Dimensions DO-214AC (SMA Cathode Band (for Uni-directional products only Dimensions Inches Millimeters Min Max Min Max A C A B C B D D H E F G E J F G K L H I J I K L Solder Pads (all dimensions in mm

6 Part Numbering System Part Marking System SMAJ XXX C A Cathode Band (for Uni-directional products only F Littelfuse Logo SERIES BI-DIRECTIONAL V R VOLTAGE 5% V BR VOLTAGE TOLERANCE XX YMXXX Marking Code Trace Code Marking Y:Year Code M: Month Code XXX: Lot Code Packaging Part number Component Package Quantity Packaging Option Packaging Specification SMAJ-xxxXX DO-214AC 5 Tape & Reel - 12mm tape/13 reel EIA STD RS-481 Tape and Reel Specification.47 ( (4. Cathode.157 (4..59 DIA (1.5 Cover tape.8 (2.2 Arbor Hole Dia. 13. (33 Dimensions are in inches (and millimeters..49 (12.5 Direction of Feed