# TVS Diode, SPA SD Series, Unidirectional, 22 V, 35.5 V, SOD-323, 2 Pins

![Product image](https://novapart.co/image/farnell:3996882RL/)

**URL**: https://novapart.co/products/SD22-01FTG/tvs-diode-spa-sd-series-unidirectional-22-v-355
**SKU**: SD22-01FTG
**Manufacturer**: LITTELFUSE
**Category**: Circuit Protection || TVS - Transient Voltage Suppressors || TVS Diodes
**Price**: €0.0900
**Stock**: 1000+
**Lead Time**: 2 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | To Be Advised |
| No. Of Pins | 2Pins |
| Tvs Polarity | Unidirectional |
| Product Range | SPA SD Series |
| Qualification | - |
| Diode Mounting | Surface Mount |
| Diode Case Style | SOD-323 |
| Clamping Voltage Max | 35.5V |
| Reverse Standoff Voltage | 22V |
| Maximum Breakdown Voltage | - |
| Minimum Breakdown Voltage | 23V |
| Operating Temperature Max | 150°C |
| Peak Pulse Power Dissipation | 950W |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3996882RL/)

**TVS Diode Arrays (SPA[® ] Diodes)** 

**Surge Protection - SD22** 

~~**RoHS Pb GREEN** IOC]~~ 

## SD22 Series, 950W Discrete Unidire ~~ctional TVS Diode~~ 

## ~~**Description**~~ 

The Unidirectional SD22 Series is designed for use in electronic equipment for low speed and DC applications. It will protect any sensitive equipment from damage due to electrostatic discharge (ESD) and other transient events. The SD22 series can safely absorb repetitive ESD strikes at ±30kV (contact discharge, IEC 61000-4-2) without performance degradation and safely dissipate 27A of 8/20μs induced surge current (IEC 61000-4-5 2nd edition) with very low clamping voltages. 

## ~~**Pinout and Functional Block Diagram Features** EE, Eee~~ 

- ESD, IEC 61000-4-2, • Low clamping voltage 

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- ±30kV contact, ±30kV air 

- EFT, IEC 61000-4-4, 40A (5/50ns) 

- Lightning, IEC 61000- 

- 4-5 2[nd] edition, 27A (tP=8/20μs) 

## ~~**Applications**~~ 

   - Low leakage current 

   - Small SOD323 package fits 0805 footprints 

   - Moisture Sensitivity Level(MSL -1) 

   - Halogen-free, lead-free and RoHS-compliant 

- Switches / Buttons 

- Test Equipment / Instrumentation 

- Point-of-Sale Terminals 

   - Notebooks / Desktops / Servers 

   - Computer Peripherals 

   - Automotive applications 

- Medical Equipment 

Life Support Note: 

**Not Intended for Use in Life Support or Life Saving Applications** 

The products shown herein are not designed for use in life sustaining or life saving applications unless otherwise expressly indicated. 

©2020 Littelfuse, Inc. Specifications are subject to change without notice. Revision: 09/02/20 

**TVS Diode Arrays** (SPA[ ® ] Diodes) Surge Protection - SD22 

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Absolute Maximum Ratings<br>Symbol Parameter Value Units<br>Ppk Peak Pulse Power (tp=8/20μs) 950 W<br>TOP Operating Temperature -40 to 150 °C<br>TSTOR Storage Temperature -55 to 150 °C<br>Notes:<br>CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the component. This is a stress only rating and<br>operation of the component at these or any other conditions above those indicated in the operational sections of this specification is not implied.<br>Electrical Characteristics (T OP =25 º C)<br>Parameter Symbol Test Conditions Min Typ Max Units<br>Reverse Standoff Voltage VRWM IR=1μA 22.0 V<br>Breakdown Voltage VBR IR=1mA 23.0 V<br>Reverse Leakage Current ILEAK VR=22V 0.02 0.5 μA<br>Clamp Voltage [1] VC IPP=27A, tp=8/20µs, Fwd 35.5 V<br>Dynamic Resistance [2] RDYN TLP, tp=100ns, I/O to Ground 0.13 Ω<br>Peak Pulse Current Ipp  tp=8/20µs 27 A<br>IEC 61000-4-2 (Contact Discharge) ±30 kV<br>ESD Withstand Voltage [1] VESD IEC 61000-4-2 (Air Discharge) ±30 kV<br>Diode Capacitance [1] CI/O-GND Reverse Bias=0V, f=1MHz 160 pF<br>**----- End of picture text -----**<br>


Note: 

1. Parameter is guaranteed by design and/or component characterization. 

- 2.Transmission Line Pulse (TLP) with 100ns width, 2ns rise time, and average window t1=70ns to t2= 90ns 

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Power Derating Curve<br>120<br>100<br>80<br>60<br>40<br>20<br>0<br>0    10    20   30    40    50    60    70   80    90    100  110  120 130  140  150<br>Ambient Temperature (ºC)<br>)P<br>Percentage of Rated Current (% I<br>**----- End of picture text -----**<br>


## ~~**8/20µs Pulse Waveform**~~ 

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110%<br>100%<br>90%<br>80%<br>70%<br>60%<br>50%<br>40%<br>30%<br>20%<br>10%<br>0%<br>0.0 5.0 10.0 15.0 20.0 25.0 30.0<br>Time (ˇs)<br>PP<br>Percent of I<br>**----- End of picture text -----**<br>


©2020 Littelfuse, Inc. Specifications are subject to change without notice. Revision: 09/02/20 

**TVS Diode Arrays** (SPA[ ® ] Diodes) Surge Protection - SD22 

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Capacitance vs. Reverse Bias<br>**----- End of picture text -----**<br>


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Clamp Voltage vs. I PP<br>**----- End of picture text -----**<br>


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200.0<br>180.0<br>160.0<br>140.0<br>120.0<br>100.0<br>80.0<br>60.0<br>40.0<br>20.0<br>0.0<br>0 2 4 6 8 10 12 14 16 18 20 22<br>Bias Voltage (V)<br>Capacitance (pF)<br>**----- End of picture text -----**<br>


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50.0<br>45.0<br>40.0<br>35.0<br>30.0<br>25.0<br>20.0<br>15.0<br>10.0<br>5.0<br>0.0<br>12 15 18 21 24 27<br>Peak Pulse Current-IPP (A)<br>Clamp Voltage (V)C<br>**----- End of picture text -----**<br>


## ~~**Positive Transmission Line Pulsing (TLP) Plot**~~ 

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24<br>22<br>20<br>18<br>16<br>14<br>12<br>10<br>8<br>6<br>4<br>2<br>0<br>0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30<br>TLP Voltage (V)<br>TLP Current (A)<br>**----- End of picture text -----**<br>


## ~~**Negative Transmission Line Pulsing (TLP) Plot**~~ 

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0<br>-2<br>-4<br>-6<br>-8<br>-10<br>-12<br>-14<br>-16<br>-18<br>-20<br>-22<br>-24<br>-5 -4 -3 -2 -1 0<br>TLP Voltage (V)<br>TLP Current (A)<br>**----- End of picture text -----**<br>


## ~~**Non-Repetitive Peak Pulse Power vs. Pulse Time**~~ 

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10<br>1<br>0.1<br>0.01<br>0.1 1 10 100 1000<br>Pulse Duration -t p(μs)<br> (kW)<br>pk<br>Peak Pulse Power -P<br>**----- End of picture text -----**<br>


©2020 Littelfuse, Inc. Specifications are subject to change without notice. Revision: 09/02/20 

**TVS Diode Arrays** (SPA[ ® ] Diodes) Surge Protection - SD22 

~~**IEC 61000-4-2 +8 kV Contact ESD Clamping Voltage**~~ 

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IEC 61000-4-2 -8 kV Contact ESD Clamping Voltage<br>**----- End of picture text -----**<br>


## ~~**Soldering Parameters**~~ 

|Reflow Condition<br>- Temperature Min (Ts(min))|Pb – Free assembly<br>150°C|
|---|---|
|Pre Heat<br>- Temperature Max (Ts(max))<br>- Time (min to max) (ts)<br>Average ramp up rate (Liquidus)  Temp (TL)<br>to peak<br>TS(max)to TL- Ramp-up Rate<br>Reflow<br>- Temperature (TL) (Liquidus)<br>- Temperature (tL)<br>Peak Temperature (TP)|200°C<br>60 – 180 secs<br>3°C/second max<br>3°C/second max<br>217°C<br>60 – 150 seconds<br>260+0/-5°C|
|Time within 5°C of actual peak<br>Temperature (tp)|20 – 40 seconds|
|Ramp-down Rate|6°C/second max|
|Time 25°C to peak Temperature (TP)|8 minutes Max.|
|Do not exceed|260°C|



|~~**Ordering Information**~~|~~**Ordering Information**~~||
|---|---|---|
||||
|Part Number|Package|Min. Order Qty.|
|SD22-01FTG|SOD323|3000|
||||
|~~**Part Numbering System**~~|||



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SD 22 – 01 F T G<br>TVS Diode Arrays®  G= Green<br>(SPA  Diodes)<br>T= Tape & Reel<br>Voltage Package<br>Number of F: SOD323<br>Channels<br>**----- End of picture text -----**<br>


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I t P i)<br>T P Critical Zone<br>TL to TP<br>[ Ramp-up<br>T S(max) T L N g _f t L \ _<br>Ramp-down<br>Preheat<br>T S(min)<br>t S<br>25 JS v<br>time to peak temperature — Time =<br>Product Characteristics<br>Lead Plating Matte Tin<br>Lead Material Copper Alloy<br>Lead Coplanarity 0.0004 inches (0.102mm)<br>Substrate Material Silicon<br>Body Material Molded Compound<br>UL Recognized compound meeting<br>Flammability<br>flammability rating V-0<br>Temperature<br>**----- End of picture text -----**<br>


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Part Marking System<br>**----- End of picture text -----**<br>


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D : Part code<br>F : Assembly code<br>* : Date code<br>1 DF* 2<br>**----- End of picture text -----**<br>


©2020 Littelfuse, Inc. Specifications are subject to change without notice. 

Revision: 09/02/20 

**TVS Diode Arrays** (SPA[ ® ] Diodes) 

Surge Protection - SD22 

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Package Dimensions -SOD323<br>Lt<br>E A1 A2 ee SOD323<br>Symbol Millimeters Inches<br>Min Max Min Max<br>| A es - 1.00 - 0.039<br>A1 0.00  0.10  0.000  0.004<br>A2 0.80  0.90 0.031  0.035<br>b 0.25  0.35  0.010  0.014<br>on E1 A<br>c 0.08  0.15  0.003  0.006<br>D 1.20 1.40 0.047 0.055<br>L1 Recommended Solder Pad E 1.60  1.80 0.063  0.071<br>-——— 1.80 E1 2.50 2.70  0.098 0.106<br>L1 0.25 0.40 0.010  0.016<br>2.30<br>2.80<br>|-——<br>Unit: mm<br>0.45<br>b D<br>0.2<br>c<br>**----- End of picture text -----**<br>


## ~~**Embossed Carrier Tape & Reel Specifcation — SOD323** Lt~~ 

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Symbol Millimeters<br>A0 1.36min/1.62max<br>B0 2.90+/-0.10<br>W 8.0+0.3/-0.10<br>oO | on 2 VT]<br>D0 1.50+0.10<br>AO D1 ø1.00min/ø1.25max<br>E 1.75+/-0.10<br>E2 -<br>Component Orientation in Tape ACCESS HOLE ,Ref. F 3.50+/-0.05<br>,Ref. P0 4.00+/-0.10<br>P 4.00+/-0.10<br>P1 2.00+/-0.05<br>OO | 7 — K0 1.15min/1.45max<br>T 0.254+/-0.13<br>\O Pin1 a ,Ref.<br>8mm TAPE AND REEL<br>**----- End of picture text -----**<br>


**Product Disclaimer: Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. “Littelfuse” includes Littelfuse, Inc., and all of its affiliate entities. htp://www.litelfuse.com/disclaimer-electronics.** 

©2020 Littelfuse, Inc. Specifications are subject to change without notice. 

Revision: 09/02/20 



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- [Supplier page](https://es.farnell.com/littelfuse/sd22-01ftg/tvs-diode-unidir-22v-950w-sod/dp/3996882RL)
---

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