1N4148WTQ-7

**1N4148WT** 7 

**SURFACE MOUNT FAST SWITCHING DIODE** 

## **Features** 

## **Mechanical Data** 

- Fast Switching Speed 

- Very Small Surface Mount Package 

- For General Purpose Switching Applications 

- High Conductance 

- **Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)** 

- **Halogen- and Antimony-Free. “Green” Device (Note 3)** 

- **The 1N4148WTQ-7 is suitable for automotive applications requiring specific change control; this part is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities.** 

- Case: SOD523 

- Case Material: Molded Plastic, “Green” Molding Compound. UL Flammability Classification Rating 94V-0 

- Moisture Sensitivity: Level 1 per J-STD-020 

- Terminal Connections: Cathode Band 

- Terminals: Finish—Matte Tin Annealed over Alloy 42 LeadFrame. Solderable per MIL-STD-202, Method 208 

- Weight: 0.0014 grams (Approximate) 

**https://www.diodes.com/quality/product-definitions/** 

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SOD523 2<br>e | 1<br>**----- End of picture text -----**<br>


Top View 

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Device Schematic<br>**----- End of picture text -----**<br>


## **Ordering Information** (Note 4) 

|**Ordering Informationg Information Information** (Note 4)|**Ordering Informationg Information Information** (Note 4)|**Ordering Informationg Information Information** (Note 4)|**Ordering Informationg Information Information** (Note 4)|
|---|---|---|---|
|||||
|**Part Number**|**Compliance**|**Case**|**Packaging**|
|1N4148WT-7(Note 5)|Standard|SOD523|3,000/Tape & Reel|
|1N4148WT-76|Standard|SOD523|6,000/Tape & Reel|
|1N4148WTQ-7(Note 5)|Automotive|SOD523|3,000/Tape & Reel|
|1N4148WT-13|Standard|SOD523|10,000/Tape & Reel|



- Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3).compliant. 

   2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 

   3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. 

   4. For packaging details, go to our website at https://www.diodes.com/design/support/packaging/diodes-packaging/. 

   5. Dispensed in every other cavity of the tape. 

## **Marking Information** 

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T4<br>4h<br>**----- End of picture text -----**<br>


T4 = Product Type Marking Code 

Cathode Band 

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1N4148WT Document number: DS30396 Rev. 19 - 2 

April 2021 © Diodes Incorporated 

**1N4148WT** 

## **Maximum Ratings** (@ TA = +25°C, unless otherwise specified.) 

|**Maximum Ratingsgss** (@ TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|(@ TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|||
|---|---|---|---|
|**Characteristic**|**Symbol**|**Value**|**Unit**|
|Non-Repetitive Peak Reverse Voltage|VRM|100|V|
|Reverse Voltage|VR|80|V|
|RMS Reverse Voltage|VR(RMS)|53|V|
|Forward Continuous Current|IFM|250|mA|
|Average Rectified Output Current|IO|125|mA|
|Non-Repetitive Peak Forward Surge Current<br>@ t = 1.0μs<br>@t = 100ms|IFSM|2.0<br>1.0|A|



## **Thermal Characteristics** 

|**Thermal Characteristics**|**Thermal Characteristics**|**Thermal Characteristics**|**Thermal Characteristics**|
|---|---|---|---|
|||||
|**Characteristic**|**Symbol**|**Value**|**Unit**|
|Power Dissipation (Note 6)|PD|150|mW|
|Thermal Resistance Junction to Ambient Air (Note 6)|RθJA|833|°C/W|
|Operatingand Storage Temperature Range|TJ, TSTG|-55 to +150|°C|



## **Electrical Characteristics** (@ TA = +25°C, unless otherwise specified.) 

|**Electrical Characteristics **(@ TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Electrical Characteristics **(@ TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Electrical Characteristics **(@ TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Electrical Characteristics **(@ TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Electrical Characteristics **(@ TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Electrical Characteristics **(@ TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|
|---|---|---|---|---|---|
|||||||
|**Characteristic**|**Symbol**|**Min**|**Max**|**Unit**|**Test Conditions**|
|Reverse Breakdown Voltage(Note 7)|V(BR)R|75||V|IR= 1.0μA|
|Forward Voltage|VF||0.715<br>0.855<br>1.0<br>1.25|V|IF= 1.0mA<br>IF= 10mA<br>IF= 50mA<br>IF= 150mA|
|Peak Reverse Current (Note 7)|IR||1.0<br>50<br>30<br>25|μA<br>μA<br>μA<br>nA|VR= 75V<br>VR= 75V, TJ= +150°C<br>VR= 25V, TJ= +150°C<br>VR= 20V|
|Total Capacitance|CT||2.0|pF|VR= 0, f = 1.0MHz|
|Reverse Recovery Time|tRR||4.0|ns|IF= IR= 10mA,<br>IRR= 0.1 x IR, RL= 100Ω|



Notes: 6. Part mounted on FR-4 PC board with recommended pad layout, which can be found on our website at https://www.diodes.com/design/support/packaging/diodes-packaging/. 

7. Short duration pulse test used to minimize self-heating effect. 

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1N4148WT Document number: DS30396 Rev. 19 - 2 

April 2021 © Diodes Incorporated 

**1N4148WT** 

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200<br>150<br>100<br>\<br>50<br>Note 6<br>0<br>0 25 50 75 100 125 N\ 150<br>TA, AMBIENT TEMPERATURE (°C)<br>Fig. 1  Power Derating Curve<br>10,000<br>ites<br>1,000 S S<br>S S e SS e<br>100<br>Te EE<br>====S===>=<br>10<br>=== === —<br>1<br>epe r recees<br>0.1 7A<br>0 20 40 60 80 100<br>VR, INSTANTANEOUS REVERSE VOLTAGE (V)<br>Fig. 3  Typical Reverse Characteristics<br>, POWER DISSIPATION (mW)<br>D<br>P<br>, INSTANTANEOUS REVERSE CURRENT (nA)<br>IR<br>**----- End of picture text -----**<br>


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1<br>Ce<br>0.1<br>0.01 a ee 2),<br>0.001 iL |<br>0 i ee 0.5 1.0 1.5<br>VF, INSTANTANEOUS FORWARD VOLTAGE (V)<br>Fig. 2  Typical Forward Characteristics<br>2.0<br>1.8 f = 1.0MHz<br>1.6 EEE ETE | PE<br>1.4 IH |<br>1.2<br>NCU<br>1.0<br>PST TTT<br>0.8<br>0.6 Sineeeee<br>0.4<br>0.20.0 —tintiititittLLLEEEEEE<br>0 10 20 30 EEE 40<br>VR, DC REVERSE VOLTAGE (V)<br>Fig. 4  Total Capacitance vs. Reverse Voltage<br>, INSTANTANEOUS FORWARD CURRENT (A)<br>IF<br>, TOTAL CAPACITANCE (pF)<br>T<br>C<br>**----- End of picture text -----**<br>


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1N4148WT Document number: DS30396 Rev. 19 - 2 

April 2021 

© Diodes Incorporated 

**1N4148WT** 

## **Package Outline Dimensions** 

Please see http://www.diodes.com/package-outlines.html for the latest version. 

**SOD523** 

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R0.1 9 °<br>A c<br>c<br>c 7°<br>| He fo<br>E<br>L<br>D b<br>| ‘{_|<br>**----- End of picture text -----**<br>


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SOD523<br>Dim  Min  Max<br>A  0.55  0.65<br>b  0.26 0.34<br>c  0.11  0.17<br>D  0.75  0.85<br>E  1.15  1.25<br>He  1.55  1.65<br>L  0.10 0.30<br>All Dimensions in mm<br>**----- End of picture text -----**<br>


## **Suggested Pad Layout** 

Please see http://www.diodes.com/package-outlines.html for the latest version. 

## **SOD523** 

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X1<br>X Dimensions Value (in mm)<br>Oc G  0.80<br>X  0.60<br>Y X1  2.00<br>Y  0.70<br>a<br>G<br>**----- End of picture text -----**<br>


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1N4148WT Document number: DS30396 Rev. 19 - 2 

April 2021 © Diodes Incorporated 

**1N4148WT** 

## **IMPORTANT NOTICE** 

1. DIODES INCORPORATED AND ITS SUBSIDIARIES (“DIODES”) MAKE NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO ANY INFORMATION CONTAINED IN THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 

2. The Information contained herein is for informational purpose only and is provided only to illustrate the operation of Diodes products described herein and application examples. Diodes does not assume any liability arising out of the application or use of this document or any product described herein. This document is intended for skilled and technically trained engineering customers and users who design with Diodes products. Diodes products may be used to facilitate safety-related applications; however, in all instances customers and users are responsible for (a) selecting the appropriate Diodes products for their applications, (b) evaluating the suitability of the Diodes products for their intended applications, (c) ensuring their applications, which incorporate Diodes products, comply the applicable legal and regulatory requirements as well as safety and functional-safety related standards, and (d) ensuring they design with appropriate safeguards (including testing, validation, quality control techniques, redundancy, malfunction prevention, and appropriate treatment for aging degradation) to minimize the risks associated with their applications. 

3. Diodes assumes no liability for any application-related information, support, assistance or feedback that may be provided by Diodes from time to time. Any customer or user of this document or products described herein will assume all risks and liabilities associated with such use, and will hold Diodes and all companies whose products are represented herein or on Diodes’ websites, harmless against all damages and liabilities. 

4. Products described herein may be covered by one or more United States, international or foreign patents and pending patent applications. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks and trademark applications. Diodes does not convey any license under any of its intellectual property rights or the rights of any third parties (including third parties whose products and services may be described in this document or on Diodes’ website) under this document. 

5. Diodes products are provided subject to Diodes’ Standard Terms and Conditions of Sale (https://www.diodes.com/about/company/terms-and-conditions/terms-and-conditions-of-sales/)  or other applicable terms. This document does not alter or expand the applicable warranties provided by Diodes. Diodes does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. 

6. Diodes products and technology may not be used for or incorporated into any products or systems whose manufacture, use or sale is prohibited under any applicable laws and regulations. Should customers or users use Diodes products in contravention of any applicable laws or regulations, or for any unintended or unauthorized application, customers and users will (a) be solely responsible for any damages, losses or penalties arising in connection therewith or as a result thereof, and (b) indemnify and hold Diodes and its representatives and agents harmless against any and all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim relating to any noncompliance with the applicable laws and regulations, as well as any unintended or unauthorized application. 

7. While efforts have been made to ensure the information contained in this document is accurate, complete and current, it may contain technical inaccuracies, omissions and typographical errors. Diodes does not warrant that information contained in this document is error-free and Diodes is under no obligation to update or otherwise correct this information. Notwithstanding the foregoing, Diodes reserves the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the final and determinative format released by Diodes. 

8. Any unauthorized copying, modification, distribution, transmission, display or other use of this document (or any portion hereof) is prohibited. Diodes assumes no responsibility for any losses incurred by the customers or users or any third parties arising from any such unauthorized use. 

Copyright © 2021 Diodes Incorporated 

**www.diodes.com** 

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1N4148WT Document number: DS30396 Rev. 19 - 2 

April 2021 © Diodes Incorporated