SMBJ85A
TVS Diode, SMBJ, Unidirectional, 85 V, 137 V, DO-214AA (SMB), 2 Pins
- Manufacturer: LITTELFUSE
- Product type: TVS Diodes
- Product Range:SMBJ Series; TVS Polarity:Unidirectional; Reverse Stand-Off Voltage Vrwm:85V; Clamping Voltage Vc Max:137V; Diode Case Style:DO-214AA; No. of Pins:2Pins; Breakdown Vo
- SVHC: To Be Advised
- No. of Pins: 2Pins
- TVS Polarity: Unidirectional
- Product Range: SMBJ
- Qualification: -
- Diode Mounting: Surface Mount
- Diode Case Style: DO-214AA (SMB)
- Clamping Voltage Max: 137V
- Reverse Standoff Voltage: 85V
- Maximum Breakdown Voltage: 104V
- Minimum Breakdown Voltage: 94.4V
- Operating Temperature Max: 150°C
- Peak Pulse Power Dissipation: 600W
| Delivery and price | |
|---|---|
| Units per pack | 1000 |
| Price | 0.121 € |
| Current stock | 1000+ |
| Lead time | 30 days |
**TVS Diodes** Surface Mount – 600W > SMBJ series > ~~**RoHS** IMAOO Pb~~ ~~**e**~~ **3** ## SMBJ Series **==> picture [49 x 7] intentionally omitted <==** **----- Start of picture text -----**<br> Uni-directional<br>**----- End of picture text -----**<br> **==> picture [44 x 7] intentionally omitted <==** **----- Start of picture text -----**<br> Bi-directional<br>**----- End of picture text -----**<br> **Description** The SMBJ series is designed specifically to protect sensitive electronic equipment from voltage transients ~~eS~~ induced by lightning and other transient voltage events. ## **Features** - Excellent clamping • 600W peak pulse power capability capability at 10/1000μs - • Low incremental surge waveform, repetition rate resistance (duty cycles):0.01% **==> picture [244 x 92] intentionally omitted <==** **----- Start of picture text -----**<br> Agency Approvals<br>Lo<br>Agency Agency File Number<br>E230531<br>—EEEEE<br>Maximum Ratings and Thermal Characteristics<br>(TA=25 [O] C unless otherwise noted)<br>**----- End of picture text -----**<br> |**Parameter**<br>Peak Pulse Power Dissipation(Fig.2)<br>by 10/1000us Test Waveform(Fig.4) (Note 1),(Note<br>2)-Single Die Parts<br>Peak Pulse Power Dissipation(Fig.2)<br>by 10/1000us Test Waveform(Fig.4) (Note 1),<br>(Note 2)-Stacked Die Parts(Note 5)<br>Power Dissipation on Infinite Heat Sink at<br>TL=50OC|**Symbol**<br>PPPM<br>PPPM<br>PD|**Value**<br>600<br>800<br>5.0|**Unit**<br>W<br>W<br>W| |---|---|---|---| |Peak Forward Surge Current, 8.3ms Single Half<br>Sine Wave(Note 3)<br>Maximum Instantaneous Forward Voltage at 50A<br>for Unidirectional Only (Note 4)<br>Operating Temperature Range<br>Storage Temperature Range<br>Typical Thermal Resistance Junction to Lead<br>Typical Thermal Resistance Junction to Ambient|IFSM<br>Maximum Instantaneous Forward Voltage at 50A<br>VF<br>TJ<br>TSTG<br>RƟJL<br>RƟJA|100<br>3.5/5.0<br>-65 to 150<br>-65 to 175<br>20<br>100|A<br>V<br>°C<br>°C<br>°C/W<br>°C/W| **Notes:** - Typical IR less than 1μA • High temperature to reflow when VBR min>12V soldering guaranteed: 260°C/30sec - For surface mounted applications to optimize • VBR @ TJ= VBR@25°C board space x (1+αT x (TJ - 25)) - • Low profile package (αT:Temperature Coefficient, typical value is - • Typical failure mode is 0.1%) - short from over-specified • UL Recognized compound - voltage or current meeting flammability - • Whisker test is conducted classification V-0 - Whisker test is conducted classification V-0 based on JEDEC • Meet MSL level1, per - JESD201A per its table 4a J-STD-020, LF maximun - and 4c peak of 260°C - IEC-61000-4-2 ESD • Matte tin lead–free plated - 30kV(Air), 30kV (Contact) - Halogen free and RoHS - • ESD protection of data lines in accordance with compliant IEC 61000-4-2 • Pb-free E3 means 2nd - • EFT protection of data level interconnect is Pblines in accordance with free and the terminal finish IEC 61000-4-4 material is tin(Sn) (IPC/ JEDEC J-STD-609A.01) - Built-in strain relief - UL Recognized to ANSI/ - • Fast response time: UL 497B: Protectors for - typically less than 1.0ps Data Communications and - from 0V to VBR min Fire-Alarm Circuits. **1.** Non-repetitive current pulse , per Fig. 4 and derated above TJ (initial) =25[O] C per Fig. 3. **2.** Mounted on copper pad area of 0.2x0.2” (5.0 x 5.0mm) to each terminal. **3.** Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional device only, duty cycle=4 per minute maximum. **4.** VF < 3.5V for single die parts and VF< 5.0V for stacked-die parts. **5.** For stacked die component details, please refer to part numbers labeled by ***** in Electrical Characteristics. ## **Functional Diagram** ee, **==> picture [173 x 55] intentionally omitted <==** **----- Start of picture text -----**<br> Bi-directional<br>Cathode Anode<br>Uni-directional<br>**----- End of picture text -----**<br> ## **Applications** TVS components are ideal for the protection of I/O Interfaces, VCC bus and other vulnerable circuits used in Telecom, Computer, Industrial and Consumer electronic applications. © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 06/03/20 Surface Mount – 600W > SMBJ series ## **TVS Diodes** ## **Electrical Characteristics (TA=25°C unless otherwise noted)** **==> picture [506 x 549] intentionally omitted <==** **----- Start of picture text -----**<br> Breakdown Test Maximum Maximum<br>Number (Uni)Part Number Part (Bi) UNIMarkingBI Voltage VStand offReverse(Volts) R MIN (Volts) @ IVoltage VMAXBRT Current(mA)IT Voltage VClamping @ I(V)pp C Pulse Current Maximum IppPeak (A) Leakage IReverse @ V(µA)R R coefficient of TemperatureMaximumVBR (%/C) ApprovalAgency<br>SMBJ5.0A SMBJ5.0CA KE AE 5.0 6.40 7.00 10 9.2 65.3 800 0.041 X<br>SMBJ6.0A SMBJ6.0CA KG AG 6.0 6.67 7.37 10 10.3 58.3 800 0.046 X<br>SMBJ6.5A SMBJ6.5CA KK AK 6.5 7.22 7.98 10 11.2 53.6 500 0.052 X<br>SMBJ7.0A SMBJ7.0CA KM AM 7.0 7.78 8.60 10 12.0 50.0 200 0.058 X<br>SMBJ7.5A SMBJ7.5CA KP AP 7.5 8.33 9.21 1 12.9 46.6 100 0.061 X<br>SMBJ8.0A SMBJ8.0CA KR AR 8.0 8.89 9.83 1 13.6 44.2 50 0.064 X<br>SMBJ8.5A SMBJ8.5CA KT AT 8.5 9.44 10.40 1 14.4 41.7 20 0.066 X<br>SMBJ9.0A SMBJ9.0CA KV AV 9.0 10.00 11.10 1 15.4 39.0 10 0.069 X<br>SMBJ10A SMBJ10CA KX AX 10.0 11.10 12.30 1 17.0 35.3 5 0.071 X<br>SMBJ11A SMBJ11CA KZ AZ 11.0 12.20 13.50 1 18.2 33.0 1 0.074 X<br>SMBJ12A SMBJ12CA LE BE 12.0 13.30 14.70 1 19.9 30.2 1 0.075 X<br>SMBJ13A SMBJ13CA LG BG 13.0 14.40 15.90 1 21.5 28.0 1 0.076 X<br>SMBJ14A SMBJ14CA LK BK 14.0 15.60 17.20 1 23.2 25.9 1 0.080 X<br>SMBJ15A SMBJ15CA LM BM 15.0 16.70 18.50 1 24.4 24.6 1 0.083 X<br>SMBJ16A SMBJ16CA LP BP 16.0 17.80 19.70 1 26.0 23.1 1 0.084 X<br>SMBJ17A SMBJ17CA LR BR 17.0 18.90 20.90 1 27.6 21.8 1 0.085 X<br>SMBJ18A SMBJ18CA LT BT 18.0 20.00 22.10 1 29.2 20.6 1 0.088 X<br>SMBJ20A SMBJ20CA LV BV 20.0 22.20 24.50 1 32.4 18.6 1 0.091 X<br>SMBJ22A SMBJ22CA LX BX 22.0 24.40 26.90 1 35.5 16.9 1 0.092 X<br>SMBJ24A SMBJ24CA LZ BZ 24.0 26.70 29.50 1 38.9 15.5 1 0.092 X<br>SMBJ26A SMBJ26CA ME CE 26.0 28.90 31.90 1 42.1 14.3 1 0.093 X<br>SMBJ28A SMBJ28CA MG CG 28.0 31.10 34.40 1 45.4 13.3 1 0.094 X<br>SMBJ30A SMBJ30CA MK CK 30.0 33.30 36.80 1 48.4 12.4 1 0.096 X<br>SMBJ33A SMBJ33CA MM CM 33.0 36.70 40.60 1 53.3 11.3 1 0.097 X<br>SMBJ36A SMBJ36CA MP CP 36.0 40.00 44.20 1 58.1 10.4 1 0.098 X<br>SMBJ40A SMBJ40CA MR CR 40.0 44.40 49.10 1 64.5 9.3 1 0.099 X<br>SMBJ43A SMBJ43CA MT CT 43.0 47.80 52.80 1 69.4 8.7 1 0.100 X<br>SMBJ45A SMBJ45CA MV CV 45.0 50.00 55.30 1 72.7 8.3 1 0.101 X<br>SMBJ48A SMBJ48CA MX CX 48.0 53.30 58.90 1 77.4 7.8 1 0.101 X<br>SMBJ51A SMBJ51CA MZ CZ 51.0 56.70 62.70 1 82.4 7.3 1 0.101 X<br>SMBJ54A SMBJ54CA NE DE 54.0 60.00 66.30 1 87.1 6.9 1 0.102 X<br>SMBJ58A SMBJ58CA NG DG 58.0 64.40 71.20 1 93.6 6.5 1 0.103 X<br>SMBJ60A SMBJ60CA NK DK 60.0 66.70 73.70 1 96.8 6.2 1 0.103 X<br>SMBJ64A SMBJ64CA NM DM 64.0 71.10 78.60 1 103.0 5.9 1 0.104 X<br>SMBJ70A SMBJ70CA NP DP 70.0 77.80 86.00 1 113.0 5.3 1 0.105 X<br>SMBJ75A SMBJ75CA NR DR 75.0 83.30 92.10 1 121.0 5.0 1 0.106 X<br>SMBJ78A SMBJ78CA NT DT 78.0 86.70 95.80 1 126.0 4.8 1 0.106 X<br>SMBJ85A SMBJ85CA NV DV 85.0 94.40 104.00 1 137.0 4.4 1 0.106 X<br>SMBJ90A SMBJ90CA NX DX 90.0 100.00 111.00 1 146.0 4.1 1 0.107 X<br>SMBJ100A SMBJ100CA NZ DZ 100.0 111.00 123.00 1 162.0 3.7 1 0.107 X<br>SMBJ110A SMBJ110CA PE EE 110.0 122.00 135.00 1 177.0 3.4 1 0.107 X<br>SMBJ120A SMBJ120CA PG EG 120.0 133.00 147.00 1 193.0 3.1 1 0.108 X<br>SMBJ130A SMBJ130CA PK EK 130.0 144.00 159.00 1 209.0 2.9 1 0.108 X<br>SMBJ150A SMBJ150CA PM EM 150.0 167.00 185.00 1 243.0 2.5 1 0.108 X<br>SMBJ160A SMBJ160CA PP EP 160.0 178.00 197.00 1 259.0 2.3 1 0.108 X<br>SMBJ170A SMBJ170CA PR ER 170.0 189.00 209.00 1 275.0 2.2 1 0.108 X<br>SMBJ180A SMBJ180CA PT ET 180.0 201.00 222.00 1 292.0 2.1 1 0.108 X<br>SMBJ188A SMBJ188CA PB EB 188.0 209.00 231.00 1 304.0 2.0 1 0.110 X<br>SMBJ200A SMBJ200CA PV EV 200.0 224.00 247.00 1 324.0 1.9 1 0.110 X<br>SMBJ220A SMBJ220CA PX EX 220.0 246.00 272.00 1 356.0 1.7 1 0.110 X<br>SMBJ250A SMBJ250CA PZ EZ 250.0 279.00 309.00 1 405.0 1.5 1 0.110 X<br>SMBJ300A* SMBJ300CA* QE FE 300.0 335.00 371.00 1 486.0 1.7 1 0.112 X<br>SMBJ350A* SMBJ350CA* QG FG 350.0 391.00 432.00 1 567.0 1.5 1 0.112 X<br>SMBJ400A* SMBJ400CA* QK FK 400.0 447.00 494.00 1 648.0 1.3 1 0.112 X<br> SMBJ440A* SMBJ440CA* QM FM 440.0 492.00 543.00 1 713.0 1.1 1 0.112 X<br>Notes:<br>For bidirectional type having VR of 10 volts and less, the IR limit is double.<br>For stack-die parts, use * to label the part number.<br>**----- End of picture text -----**<br> © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 06/03/20 **TVS Diodes** Surface Mount – 600W > SMBJ series **==> picture [93 x 32] intentionally omitted <==** **==> picture [504 x 198] intentionally omitted <==** **----- Start of picture text -----**<br> I-V Curve Characteristics<br>Uni-directional Bi-directional<br>Ipp<br>IT<br>Vc VBR VR V Vc VBR VR IR IR VRVBR Vc V<br>IR VF IT<br>IT<br>Ipp<br>Ipp<br>**----- End of picture text -----**<br> - **PPPM Peak Pulse Power Dissipation** -- Max power dissipation - **VR Stand-off Voltage** -- Maximum voltage that can be applied to the TVS without operation - **VBR Breakdown Voltage** -- Maximum voltage that flows though the TVS at a specified test current (IT) - **VC Clamping Voltage** -- Peak voltage measured across the TVS at a specified Ippm (peak impulse current) - **IR Reverse Leakage Current** -- Current measured at VR - **VF Forward Voltage Drop for Uni-directional** **Ratings and Characteristic Curves (TA=25°C unless otherwise noted)** **==> picture [243 x 195] intentionally omitted <==** **----- Start of picture text -----**<br> Figure 1 - TVS Transients Clamping Waveform<br>Voltage Transients<br>Voltage Across TVS<br>Current Through TVS<br>Time<br>Voltage or Current<br>**----- End of picture text -----**<br> **==> picture [243 x 195] intentionally omitted <==** **----- Start of picture text -----**<br> Figure 2 - Peak Pulse Power Rating<br>100<br>TJ initial = Tamb<br>10 stacked-die, 800W<br>at 10/1000µs, 25°C<br>1 Single die,600W<br>at 10/1000µs, 25°C<br>0.1<br>0.001 0.01 0.1 1 10<br>td-Pulse Width (ms)<br>-Peak Pulse Power (kW)<br>PPM<br>P<br>**----- End of picture text -----**<br> © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 06/03/20 **TVS Diodes** Surface Mount – 600W > SMBJ series **==> picture [93 x 32] intentionally omitted <==** **==> picture [504 x 428] intentionally omitted <==** **----- Start of picture text -----**<br> Ratings and Characteristic Curves (TA=25°C unless otherwise noted) (Continued)<br>Figure 3 - Peak Pulse Power Derating Curve Figure 4 - Pulse Waveform<br>100 150<br>tr=10µsec TJ=25°C<br>Pulse Width(td) is defined<br>80 as the point where the peak<br>Peak Value current decays to 50% of IPPM<br>100 IPPM<br>60<br>Half Value<br>40 IPPM ( ) IPPM2<br>50 10/1000µsec. Waveform<br>as defined by R.E.A<br>20<br>0 td<br>0<br>0 25 50 75 100 125 150 175 0 1.0 2.0 3.0 4.0<br>TJ - Initial Junction Temperature (ºC) t-Time (ms)<br>Figure 5 - Typical Junction Capacitance Figure 6 - Typical Transient Thermal Impedance<br>10000.00 1000<br>Uni-direc�onal V=0V<br>1000.00 Bi-direc�onal V=0V 100<br>100.00 10<br>Uni-direc�onal<br>Bi-direc�onal<br>10.00 V=VR 1<br>1.00 0.1<br>1.00 10.00 100.00 1000.00 0.001 0.01 0.1 1 10 100 1000<br>VBR—Reverse Breakdown Voltage(V) T - Pulse Duration (s)PP<br>)PP<br>) or Current (I RSM<br>PP<br>Derating in Percentage % - Peak Pulse Current, % I<br>IPPM<br>Peak Pulse Power (P<br>Cj(pf)<br>Transient Thermal Impedance (°C/W)<br>**----- End of picture text -----**<br> **==> picture [244 x 204] intentionally omitted <==** **----- Start of picture text -----**<br> 1000<br>100<br>10<br>1<br>0.1<br>0.001 0.01 0.1 1 10 100 1000<br>T - Pulse Duration (s)PP<br>Figure 8 - Peak Forward Voltage Drop vs Peak Forward<br>Current (Typical Values)<br>Transient Thermal Impedance (°C/W)<br>**----- End of picture text -----**<br> **==> picture [244 x 203] intentionally omitted <==** **----- Start of picture text -----**<br> Figure 7 - Maximum Non-Repetitive Peak Forward<br>Surge Current Uni-Directional Only<br>120<br>100<br>80<br>60<br>40<br>20<br>0<br>1 10 100<br>Number of Cycles at 60 Hz<br> - Peak Forward Surge Current (A)<br>IFSM<br>**----- End of picture text -----**<br> **==> picture [244 x 170] intentionally omitted <==** **----- Start of picture text -----**<br> 100.0<br>Single die<br>10.0 Stacked-die<br>1.0<br>0.1<br>0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0<br>V F - Peak Forward Voltage(V)<br> Peak Forward Current(A)I -F<br>**----- End of picture text -----**<br> © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 06/03/20 **TVS Diodes** Surface Mount – 600W > SMBJ series **==> picture [93 x 32] intentionally omitted <==** ## **Soldering Parameters** |**Refow Condition**|Lead–free assembly| |---|---| |**Pre Heat**<br>**- Temperature Min (Ts(min))**<br>**- Temperature Max (Ts(max))**|150°C<br>200°C| |**- Time (min to max) (ts)**|60 – 120 secs| |**Average ramp up rate (Liquidus Temp (TL) to peak**<br>**TS(max) to TL - Ramp-up Rate**<br>**Refow**<br>**- Temperature (TL) (Liquidus)**<br>**- Time (min to max) (tL)**|3°C/second max<br>3°C/second max<br>217°C<br>60 – 150 seconds| |**Peak Temperature (TP)**|260+0/-5°C| |**Time within 5°C of actual peak Temperature (tp)**|30 seconds max| |**Ramp-down Rate**|6°C/second max| |**Time 25°C to peak Temperature (TP)**|8 minutes Max.| |**Do not exceed**|260°C| |**Physical Specifcations**|**Physical Specifcations**| |---|---| |**Weight**|0.003 ounce, 0.093grams| |**Case**|JEDEC DO214AA. Molded plastic body over glass<br>passivatedjunction| |**Polarity**|Color band denotes cathode except Bidirectional| |**Terminal**|Matte Tin-plated leads, Solderableper JESD22-B102| **==> picture [245 x 273] intentionally omitted <==** **----- Start of picture text -----**<br> TP tp<br>Ramp-up Critical Zone<br>TL t L TL to TP<br>Ts(max)<br>Ramp-down<br>Ts(min)<br>Preheat t s<br>25˚C<br>t 25˚C to Peak<br>Time (t)<br>Environmental Specifications<br>High Temp. Storage JESD22-A103<br>HTRB JESD22-A108<br>Temperature Cycling JESD22-A104<br>MSL JEDEC-J-STD-020, Level 1<br>H3TRB JESD22-A101<br>RSH JESD22-A111<br>Temperature (T)<br>**----- End of picture text -----**<br> **==> picture [504 x 19] intentionally omitted <==** **----- Start of picture text -----**<br> Dimensions<br>**----- End of picture text -----**<br> **==> picture [173 x 246] intentionally omitted <==** **----- Start of picture text -----**<br> DO-214AA (SMB J-Bend)<br>Cathode Band<br>(for Uni-directional products only)<br>A C<br>B<br>H<br>D<br>F<br>E<br>G<br>J K L<br>I<br>**----- End of picture text -----**<br> **==> picture [245 x 153] intentionally omitted <==** **----- Start of picture text -----**<br> Inches Millimeters<br>Dimensions<br>Min Max Min Max<br>A 0.076 0.086 1.930 2.200<br>B 0.160 0.187 4.060 4.750<br>C 0.130 0.155 3.300 3.940<br>D 0.078 0.103 1.990 2.610<br>E 0.030 0.060 0.760 1.520<br>F - 0.008 - 0.203<br>G 0.205 0.220 5.210 5.590<br>H 0.006 0.012 0.152 0.305<br>I 0.089 - 2.260 -<br>J 0.085 - 2.160 -<br>K - 0.107 - 2.740<br>L 0.085 - 2.160 -<br>**----- End of picture text -----**<br> © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 06/03/20 **TVS Diodes** Surface Mount – 600W > SMBJ series **==> picture [93 x 32] intentionally omitted <==** **==> picture [506 x 469] intentionally omitted <==** **----- Start of picture text -----**<br> Part Numbering System Part Marking System<br>SMBJ XXX C A<br>Cathode Band<br>(for uni-directional products only)<br>Littelfuse Logo<br>5% VBR Voltage Tolerance<br>Bi-Directional XX Marking Code<br>YMXXX<br>VR Voltage Trace Code Marking<br> Y:Year Code<br>Series M: Month Code<br> XXX: Lot Code<br>Packaging<br>Part number Component Package Quantity Packaging Option Packaging Specification<br>SMBJxxxXX DO-214AA 3000 Tape & Reel - 12mm tape/13” reel EIA STD RS-481<br>Tape and Reel Specification<br>0.157<br>(4.0)<br>0.47<br>(12.0) Cathode<br>0.315 0.059 DIA Cover tape<br>(8.0) (1.5)<br>13.0 (330)<br>Dimensions are in inches<br>0.80 (20.2) (and millimeters).<br>Arbor Hole Dia.<br>Direction of Feed<br>0.49<br>(12.5)<br>F<br>**----- End of picture text -----**<br> **Disclaimer Notice -** Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics. © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 06/03/20
Updated at June 1, 2026
Founded in 1927 and headquartered in Chicago, Illinois, Littelfuse is a premier global manufacturer of circuit protection, power control, and sensing technologies. Widely recognized for pioneering the first small, fast-acting protective fuse, the company has grown into an industry leader whose highly reliable components are essential to modern industrial, transportation, and consumer electronics applications worldwide. At the core of the Littelfuse portfolio is an expansive and industry-leading range of circuit protection solutions. This encompasses a massive selection of traditional fuses, fuse holders, and resettable PTC thermistor fuses designed to safely interrupt overcurrent conditions. To defend against electrical overstress, Littelfuse also provides advanced transient voltage suppression (TVS) technologies, including thousands of specialized TVS diodes, TVS varistors, and gas discharge tubes (GDTs) that ensure robust defense against voltage spikes and environmental hazards. Beyond its foundational protection components, Littelfuse manufactures a diverse array of discrete semiconductors, sensors, and switching devices. Engineers rely on their high-performance thyristors, including TRIACs and SCRs, alongside power-efficient Schottky diodes and MOSFETs for demanding power control applications. Complemented by precision proximity sensors and highly reliable reed and solid-state relays, Littelfuse delivers the critical building blocks required for secure, efficient, and complete system design.
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