BAS21DWA-7

**BAS21DWA** 

**HIGH VOLTAGE SURFACE MOUNT DUAL SWITCHING DIODE** 

## **Features** 

## **Mechanical Data** 

- Fast Switching Speed 

- Surface Mount Package Ideally Suited for Automated Insertion 

- High Reverse Breakdown Voltage Rating 

- ESD: MM ≤ 400V and HBM ≤ 4kV 

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

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

- **Qualified to AEC-Q101 Standards for High Reliability** 

- **PPAP Capable (Note 4)** 

- Case: SOT353 

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

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

- Terminals: Matte Tin Finish Annealed over Alloy 42 Leadframe (Lead Free Plating). Solderable per MIL-STD-202, Method 208 

- Polarity: See Diagram 

- Weight: 0.006 grams (Approximate) 

**==> picture [106 x 88] intentionally omitted <==**

**----- Start of picture text -----**<br>
SOT353<br>Top View  Bottom View<br>**----- End of picture text -----**<br>


**==> picture [50 x 91] intentionally omitted <==**

**----- Start of picture text -----**<br>
 5 4<br> 1 NC 3<br>**----- End of picture text -----**<br>


## **Ordering Information** (Note 5) 

|**Ordering Informationg Information Information** (Note 5)|**Ordering Informationg Information Information** (Note 5)|**Ordering Informationg Information Information** (Note 5)|**Ordering Informationg Information Information** (Note 5)|
|---|---|---|---|
|||||
|**Part Number**|**Compliance**|**Case**|**Packaging**|
|BAS21DWA-7|AEC-Q101|SOT353|3,000/Tape & Reel|
|BAS21DWAQ-7|Automotive|SOT353|3,000/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. Automotive products are AEC-Q101 qualified and are PPAP capable. Automotive, AEC-Q101 and standard products are electrically and thermally the same, except where specified. For more information, please refer to https://www.diodes.com/quality/. 

   5. For packaging details, go to our website at http://www.diodes.com/products/packages.html. 

## **Marking Information** 

KJS  = Product Type Marking Code YM = Date Code Marking Y = Year (ex: F= 2018) M = Month (ex: 9 = September) 

**==> picture [524 x 63] intentionally omitted <==**

**----- Start of picture text -----**<br>
Date Code Key<br>Year 2014  2015  2016  2017  2018 2019 2020 2021 2022 2023  2024  2025<br>a Code B  C  D  E  F  G  H  J  K  L  M  N<br>Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec<br>Code 1  2  3  4  5  6  7  8  9  O  N  D<br>a a<br>**----- End of picture text -----**<br>


1 of 4 **www.diodes.com** 

BAS21DWA Document number: DS36559 Rev. 9 - 2 

January 2018 © Diodes Incorporated 

**BAS21DWA** 

**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.)|**Maximum Ratingsgss** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Maximum Ratingsgss** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Maximum Ratingsgss** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|
|---|---|---|---|
|||||
|**Characteristic**|**Symbol**|**Value**|**Unit**|
|Repetitive Peak Reverse Voltage|VRRM|250|V|
|Working Peak Reverse Voltage<br>DC Blocking Voltage|VRWM<br>VR|250|V|
|RMS Reverse Voltage|VR(RMS)|175|V|
|Forward Continuous Current (Note 6)|IF|200|mA|
|Peak Repetitive Forward Current (Note 6)|IFRM|625|mA|
|Non-Repetitive Peak Forward Surge Current<br>@ t = 1.0µs|IFSM|4.0|A|



## **Thermal Characteristics** 

|**Thermal Characteristics**||||
|---|---|---|---|
|**Characteristic**|**Symbol**|**Value**|**Unit**|
|Power Dissipation (Note 6)|PD|285|mW|
|Thermal Resistance Junction to Ambient Air (Note 6)|RθJA|435|°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.)|(@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**|**Min**|**Typ**|**Max**|**Unit**|**Test Condition**|
|Reverse Breakdown Voltage (Note 7)|V(BR)R|250|||V|IR= 100µA|
|Forward Voltage|VF||<br><br>|0.90<br>1.05<br>1.3|V|IF= 20mA<br>IF= 100mA<br>IF= 200mA|
|Reverse Current (Note 7)|IR||30<br>35|100<br>100|nA<br>µA|VR= 200V<br>VR= 200V, TJ= +150°C|
|Total Capacitance|CT||0.7|5.0|pF|VR= 0V, f = 1.0MHz|
|Reverse Recovery Time|trr|||50|ns|IF= IR= 30mA,<br>Irr= 3.0mA, RL= 100Ω|



Notes: 6. Part mounted on FR-4 substrate with pad dimensions 1 inch x 1 inch, 2oz, copper, single-sided, PC board. 7. Short duration pulse test used to minimize self-heating effect. 

**==> picture [482 x 215] intentionally omitted <==**

**----- Start of picture text -----**<br>
350 1000<br>300<br>| |] tt 100 ==<br>Note 6<br>TA ff ——<br>250 10 TA = 150°C<br>200<br>1 T A  = 125°C<br>150 NOK TA = 85°C<br>0.1<br>100 , LLL. pj TA = 25°C<br>0.01<br>50<br>TA = -55°C<br>0 SN 0.001 (WFAAPof | fF |)<br>0 25 50 75 100 125 150 0 200 400 600 800 1000 1200<br>TA, AMBIENT TEMPERATURE (°C) VF, INSTANTANEOUS FORWARD VOLTAGE (mV)<br>Figure 1 Power Derating Curve, Total Package Figure 2 Typical Forward Characteristics<br>, POWER DISSIPATION (mW)<br>P<br>D<br>, INSTANTANEOUS FORWARD CURRENT (mA)<br>IF<br>**----- End of picture text -----**<br>


2 of 4 **www.diodes.com** 

BAS21DWA 

January 2018 © Diodes Incorporated 

Document number: DS36559 Rev. 9 - 2 

**BAS21DWA** 

**==> picture [480 x 212] intentionally omitted <==**

**----- Start of picture text -----**<br>
100 TA = 150°C 0.8<br>SSS TA = 125°C 0.75 Fe<br>10 f = 1MHz<br>ee TA = 85°C 0.7 {ttt<br>1<br>SS 0.65 ty<br>0.1 0.6<br>ee a PTETpi tt |Tey| tt<br>TA = 25°C<br>0.55<br>———S— NO EE EE<br>0.01<br>TA = -55°C 0.5<br>——————— Pf<br>0.001<br>0.45<br>0.0001 Se 0.4 PF] i} tt tt de<br>0 50 100 150 200 0 5 10 15 20 25 30 35 40<br>VR, INSTANTANEOUS REVERSE VOLTAGE (V) VR, DC REVERSE VOLTAGE (V)<br>Figure 3 Typical Reverse Characteristics Figure 4 Total Capacitance vs. Reverse Voltage<br>, INSTANTANEOUS REVERSE CURRENT (µA)<br>IR<br>, TOTAL CAPACITANCE (pF)<br>T<br>C<br>**----- End of picture text -----**<br>


## **Package Outline Dimensions** 

**==> picture [464 x 223] intentionally omitted <==**

**----- Start of picture text -----**<br>
Please see http://www.diodes.com/package-outlines.html for the latest version.<br>SOT353<br>Dim  Min  Max  Typ<br>E E1 A1  0.00 0.10 0.05<br>A2  0.90 1.00 0.95<br>b  0.10 0.30 0.25<br>c  0.10 0.22  0.11<br>fy == D  1.80 2.20 2.15<br>oi F b E  2.00 2.20 2.10<br>E1  1.15 1.35 1.30<br>e  0.650 BSC<br>D<br>F  0.40 0.45 0.425<br>L  0.25 0.40 0.30<br>a 0° 8° --<br>A2 All Dimensions in mm<br>c a<br>L<br>A1 e<br>**----- End of picture text -----**<br>


## **Suggested Pad Layout** 

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

**==> picture [125 x 129] intentionally omitted <==**

**----- Start of picture text -----**<br>
X1<br>Y1 G C1<br>Y<br>fa eh<br>Hao X C<br>**----- End of picture text -----**<br>


**==> picture [99 x 111] intentionally omitted <==**

**----- Start of picture text -----**<br>
Value<br>Dimensions<br>(in mm)<br>C  0.650<br>C1  1.900<br>G  1.300<br>X  0.420<br>X1  1.720<br>Y  0.600<br>Y1  2.500<br>==<br>**----- End of picture text -----**<br>


3 of 4 **www.diodes.com** 

BAS21DWA Document number: DS36559 Rev. 9 - 2 

January 2018 © Diodes Incorporated 

**BAS21DWA** 

## **IMPORTANT NOTICE** 

DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 

Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others.  Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages. 

Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. 

Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. 

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 Incorporated. 

## **LIFE SUPPORT** 

Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: 

- A.   Life support devices or systems are devices or systems which: 

   1. are intended to implant into the body, or 

   2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. 

- B.   A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. 

Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated.  Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. 

Copyright © 2018, Diodes Incorporated 

**www.diodes.com** 

4 of 4 **www.diodes.com** 

BAS21DWA Document number: DS36559 Rev. 9 - 2 

January 2018 © Diodes Incorporated