BAS21QAZ

**High-voltage switching diode 9 April 2018** 

**Product data sheet** 

## **BAS21QA** 

## **1.  General description** 

High-voltage switching diode, encapsulated in a leadless ultra small DFN1010D-3 (SOT1215) Surface-Mounted Device (SMD) plastic package with visible and soldarable side pads. 

## **2.  Features and benefits** 

- High switching speed: trr ≤ 50 ns 

- Low leakage current: IR ≤ 100 nA 

- High reverse voltage: VR ≤  200 V 

- Low capacitance: Cd ≤  2 pF 

- Ultra small and leadless SMD plastic package 

- Low package height of 0.37 mm 

- Suitable for Automatic Optical Inspection (AOI) of solder joint 

- AEC-Q101 qualified 

## **3.  Applications** 

- High-speed switching 

- General-purpose switching 

- Voltage clamping 

- Reverse polarity protection 

## **4.  Quick reference data** 

|**Symbol**<br>~~a~~<br>~~ee~~|**Parameter**|**Conditions**<br>~~i~~|~~i~~<br>~~|~~|**Min**<br>~~|~~|**Typ**<br>~~|~~|**Max**<br>~~|~~|**Unit**|
|---|---|---|---|---|---|---|---|
|IF<br>~~a~~<br>~~ee~~<br>~~Se~~|forward current<br>~~Se~~|Tj= 25 °C<br>~~i~~<br>~~Se~~<br>~~||~~<br>|[1]<br>~~i~~<br>~~|~~<br>~~Se~~|-<br>~~|~~<br>~~Se~~|-<br>~~|~~<br>~~Se~~|330<br>~~|~~<br>~~Se~~|mA<br>~~Se~~|
|VR<br>~~ee~~<br>~~Se~~<br>~~||~~<br>~~a~~|reverse voltage<br>~~Se~~<br>~~|~~<br>||~~i~~<br>~~|~~<br>~~Se~~<br>~~||~~<br>|-<br>~~|~~<br>~~Se~~<br>~~||~~<br>~~|~~<br>|-<br>~~|~~<br>~~Se~~<br>~~||~~<br>~~|ft~~<br>|200<br>~~|~~<br>~~Se~~<br>~~||~~<br>~~ft~~<br>|V<br>~~Se~~<br>~~||~~<br>~~ft~~<br>|
|VRRM<br>~~Se~~<br>~~||~~<br>~~a~~<br>~~Rs~~|repetitive peak reverse<br>voltage<br>~~Se~~<br>~~|~~<br>||~~Se~~<br>~~||~~<br>|-<br>~~Se~~<br>~~||~~<br>~~|~~<br>|-<br>~~Se~~<br>~~||~~<br>~~|ft~~<br><br>~~ee~~|250<br>~~Se~~<br>~~||~~<br>~~ft~~<br><br>~~ee~~|V<br>~~Se~~<br>~~||~~<br>~~ft~~<br><br>~~ee~~|
|VF<br>~~| |~~<br>~~aee~~<br>~~Rs~~|forward voltage<br>~~|~~<br>~~ee~~|IF= 200 mA; tp≤  300 µs; δ ≤  0.02;<br>Tj= 25 °C<br>~~||~~<br>~~ee~~|~~||~~<br>~~ee~~|-<br>~~||~~<br>~~|~~<br>~~ee~~|-<br>~~||~~<br>~~|ft~~<br>~~ee~~<br>~~ee~~|1.25<br>~~||~~<br>~~ft~~<br>~~ee~~<br>~~ee~~|V<br>~~||~~<br>~~ft~~<br>~~ee~~<br>~~ee~~|
|IR<br>~~aee~~<br>~~Rs~~|reverse current<br>~~ee~~|VR= 200 V; pulsed; Tj= 25 °C<br>~~ee~~|~~ee~~|-<br>~~|~~<br>~~ee~~|-<br>~~| ft~~<br>~~ee~~<br>~~ee~~|100<br>~~ft~~<br>~~ee~~<br>~~ee~~|nA<br>~~ft~~<br>~~ee~~<br>~~ee~~|
|trr<br>~~Rs~~<br>~~aee~~|reverse recovery time<br>~~ee~~|IF= 30 mA; IR= 30 mA; RL= 100 Ω;<br>IR(meas)= 3 mA; Tj= 25 °C<br>~~ee~~|~~ee~~|-<br>~~ee~~|-<br>~~ee~~<br>~~ee~~|50<br>~~ee~~<br>~~ee~~|ns<br>~~ee~~<br>~~ee~~|



[1] Device mounted on an FR4 Printed-Circuit Board (PCB), single-sided copper, tin-plated and standard footprint. 

**Nexperia** 

**BAS21QA** 

**High-voltage switching diode** 

## **5.  Pinning information** 

**Table 2. Pinning information** 

|**Pin**|**Symbol**|**Description**|**Simplified outline**|**Graphic symbol**|**Graphic symbol**|
|---|---|---|---|---|---|
|1|A|anode|Transparent top view<br>1<br>2<br>3<br>4<br>**DFN1010D-3 (SOT1215)**|A<br>n.c.|_aaa-021941_<br>K|
|2|n.c.|not connected||||
|3|K|cathode||||
|4|K|cathode||||



## **6.  Ordering information** 

## **Table 3. Ordering information** 

|**Type number**|**Package**|||
|---|---|---|---|
||**Name**|**Description**|**Version**|
|BAS21QA|DFN1010D-3|plastic, thermal enhanced ultra thin small outline package; 3<br>terminals; 0.75 mm pitch; 1.1 mm x 1 mm x 0.37 mm body|SOT1215|



## **7.  Marking** 

## **Table 4. Marking codes** 

**==> picture [497 x 257] intentionally omitted <==**

**----- Start of picture text -----**<br>
Type number Marking code<br>BAS21QA X 001<br>READING<br>DIRECTION<br>MARKING CODE<br>(EXAMPLE)<br>YEAR DATE<br>CODE<br>PIN 1<br>INDICATION MARK VENDOR CODE<br>READING EXAMPLE:<br>MARK-FREE AREA<br>A 110<br>aaa-020723<br>Fig. 1. DFN1010D-3 (SOT1215) binary marking code description<br>**----- End of picture text -----**<br>


© Nexperia B.V. 2018. All rights reserved 

BAS21QA 

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**2 / 11** 

**9 April 2018** 

**Product data sheet** 

**Nexperia** 

**BAS21QA** 

**High-voltage switching diode** 

## **8.  Limiting values** 

## **Table 5. Limiting values** 

_In accordance with the Absolute Maximum Rating Sytem (IEC 60134)_ 

|**Symbol**|**Parameter**|**Conditions**||**Min**|**Max**|**Unit**|
|---|---|---|---|---|---|---|
|VRRM|repetitive peak reverse<br>voltage|Tj= 25 °C||-|250|V|
|VR|reverse voltage|||-|200|V|
|IF|forward current||[1]|-|330|mA|
|IFSM|non-repetitive peak<br>forward current|tp= 1 µs; Tj(init)= 25 °C; square wave||-|9|A|
|||tp= 100 µs; Tj(init)= 25 °C; square wave||-|3|A|
|||tp= 10 ms; Tj(init)= 25 °C; square wave||-|1.7|A|
|IFRM|repetitive peak forward<br>current|tp≤  1 ms; δ ≤  0.25||-|900|mA|
|Ptot|total power dissipation|Tamb≤  25 °C|[1]|-|350|mW|
||||[2]|-|610|mW|
|Tj|junction temperature|||-|150|°C|
|Tamb|ambient temperature|||-55|150|°C|
|Tstg|storage temperature|||-65|150|°C|



[1] Device mounted on an FR4 Printed-Circuit Board (PCB), single-sided copper, tin-plated and standard footprint. 

[2] Device mounted on an FR4 Printed-Circuit Board (PCB), single-sided copper, tin-plated mounting pad for cathode 1cm[2] . 

## **9.  Thermal characteristics** 

**Table 6. Thermal characteristics** 

|**Symbol**|**Parameter**|**Conditions**||**Min**|**Typ**|**Max**|**Unit**|
|---|---|---|---|---|---|---|---|
|Rth(j-a)|thermal resistance<br>from junction to<br>ambient|In free air|[1]|-|-|355|K/W|
||||[2]|-|-|205|K/W|
|Rth(j-sp)|thermal resistance<br>from junction to solder<br>point||[3]|-|-|45|K/W|



[1] Device mounted on an FR4 PCB, single-sided copper, tin-plated and standard footprint. 

[2] Device mounted on an FR4 PCB, single-sided copper, tin-plated mounting pad for cathode 1cm[2] . 

[3] Soldering point of cathode tab. 

© Nexperia B.V. 2018. All rights reserved 

BAS21QA 

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**3 / 11** 

**9 April 2018** 

**Product data sheet** 

**Nexperia** 

**BAS21QA** 

## **High-voltage switching diode** 

**==> picture [481 x 189] intentionally omitted <==**

**----- Start of picture text -----**<br>
aaa-027994<br>10 [3]<br>Zth(j-a) duty cycle = 1<br>(K/W) 0.75<br>0.50<br>10 [2] 0.33<br>0.25<br>0.20<br>0.10<br>0.05<br>10<br>0.02<br>0.01<br>0<br>1<br>10 [-5] 10 [-4] 10 [-3] 10 [-2] 10 [-1] 1 10 10 [2] 10 [3]<br>tp (s)<br>**----- End of picture text -----**<br>


FR4 PCB, standard footprint 

**Fig. 2. Transient thermal impedance from junction to ambient as a function of pulse duration; typical values** 

**==> picture [481 x 190] intentionally omitted <==**

**----- Start of picture text -----**<br>
aaa-027995<br>10 [3]<br>Zth(j-a)<br>(K/W)<br>duty cycle = 1<br>0.75<br>10 [2]<br>0.50<br>0.33<br>0.25<br>0.20<br>0.10<br>0.05<br>10<br>0.02 0.01<br>0<br>1<br>10 [-5] 10 [-4] 10 [-3] 10 [-2] 10 [-1] 1 10 10 [2] 10 [3]<br>tp (s)<br>**----- End of picture text -----**<br>


FR4 PCB, mounting pad for cathode 1 cm[2] **Fig. 3. Transient thermal impedance from junction to ambient as a function of pulse duration; typical values** 

© Nexperia B.V. 2018. All rights reserved 

BAS21QA 

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**4 / 11** 

**9 April 2018** 

**Product data sheet** 

**Nexperia** 

**BAS21QA** 

**High-voltage switching diode** 

## **10.  Characteristics** 

**Table 7. Characteristics** 

|**Symbol**|**Parameter**|**Conditions**||**Min**|**Typ**|**Max**|**Unit**|
|---|---|---|---|---|---|---|---|
|VF|forward voltage|IF= 100 mA; tp≤  300 µs; δ ≤  0.02;<br>Tj= 25 °C<br>IF= 200 mA; tp≤  300 µs; δ ≤  0.02;<br>Tj= 25 °C||-|-|1|V|
|||||-|-|1.25|V|
|IR|reverse current|VR= 200 V; pulsed; Tj= 25 °C<br>VR= 200 V; pulsed; Tj= 150 °C||-|-|100|nA|
|||||-|-|100|µA|
|Cd|diode capacitance|VR= 0 V; f = 1 MHz; Tj= 25 °C||-|-|2|pF|
|trr|reverse recovery ti|me<br>IF= 30 mA; IR= 30 mA; RL= 100 Ω;<br>IR(meas)= 3 mA; Tj= 25 °C||-|-|50|ns|



**==> picture [497 x 269] intentionally omitted <==**

**----- Start of picture text -----**<br>
006aab212 aaa-028237<br>600 1<br>IF<br>IF (A)<br>(mA)<br>10 [-1]<br>400<br>10 [-2]<br>(2)<br>200<br>(1) (3) (1) (2) (3) (4)<br>10 [-3]<br>(4)<br>0 10 [-4]<br>0 0.4 0.8 1.2 1.6 0 0.25 0.50 0.75 1.00 1.25 1.50 1.75<br>VF (V) VF (V)<br>(1) Tamb = 150° C (1) Tj = 150° C<br>(2) Tamb = 85° C (2) Tj = 85° C<br>(3) Tamb = 25° C (3) Tj = 25° C<br>(4) Tamb = -40° C (4) Tj = -40° C<br>Fig. 4. Forward current as a function of forward Fig. 5. Forward current as a function of forward<br>voltage; typical values voltage; typical values; (logarithmic scale)<br>**----- End of picture text -----**<br>


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**Product data sheet** 

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**BAS21QA** 

## **High-voltage switching diode** 

**==> picture [497 x 504] intentionally omitted <==**

**----- Start of picture text -----**<br>
006aab213 mbg447<br>10 [2] 1.0<br>IR (1)<br>(µA) Cd<br>10 (pF)<br>(2) 0.8<br>1<br>10 [-1]<br>(3) 0.6<br>10 [-2]<br>10 [-3]<br>0.4<br>10 [-4] (4)<br>10 [-5] 0.2<br>0 50 100 150 200 250 0 2 4 6 8<br>VR (V) VR (V)<br>(1) Tamb = 150° C f = 1 MHz<br>(2) Tamb = 85° C Tj = 25 °C.<br>(3) Tamb = 25° C<br>Fig. 7. Diode capacitance as a function of reverse<br>(4) Tamb = -40° C<br>voltage; typical values.<br>Fig. 6. Reverse current as a function of reverse<br>voltage; typical values<br>10 [2] mbg703<br>IFSM<br>(A)<br>10<br>1<br>10 [- 1]<br>1 10 10 [2] 10 [3] 10 [4]<br>tp (µs)<br>Based on square wave currents.<br>T  = 25 °C<br>j(init)<br>Fig. 8. Non-repetitive peak forward current as a function of pulse duration; maximum values<br>**----- End of picture text -----**<br>


© Nexperia B.V. 2018. All rights reserved 

BAS21QA 

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**Product data sheet** 

**Nexperia** 

**BAS21QA** 

**High-voltage switching diode** 

## **11.  Test information** 

**==> picture [453 x 111] intentionally omitted <==**

**----- Start of picture text -----**<br>
tr tp<br>t<br>D.U.T.<br>10 %<br>RS = 50 Ω IF SAMPLING  + IF trr t<br>OSCILLOSCOPE<br>V = VR + IF × RS Ri  = 50 Ω<br>90 % (1)<br>VR<br>mga881<br>input signal output signal<br>(1) IR = 3 mA<br>**----- End of picture text -----**<br>


**Fig. 9. Reverse recovery time test circuit and waveforms** 

## **Quality information** 

This product has been qualified in accordance with the Automotive Electronics Council (AEC) standard _Q101 - Stress test qualification for discrete semiconductors_ , and is suitable for use in automotive applications. 

## **12.  Package outline** 

**==> picture [233 x 163] intentionally omitted <==**

**----- Start of picture text -----**<br>
0.87<br>0.95<br>0.75<br>0.22<br>0.30<br>1 2 0.17<br>0.25<br>0.95 0.16<br>1.05 0.1 0.24<br>0.195<br>3<br>0.275<br>0.04 0.245<br>max 0.34 0.325 1.05<br>0.40 1.15<br>Dimensions in mm 13-03-05<br>**----- End of picture text -----**<br>


**Fig. 10. Package outline DFN1010D-3 (SOT1215)** 

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**9 April 2018** 

**Product data sheet** 

**Nexperia** 

**BAS21QA** 

**High-voltage switching diode** 

## **13.  Soldering** 

**==> picture [481 x 573] intentionally omitted <==**

**----- Start of picture text -----**<br>
Footprint information for reflow soldering of DFN1010D-3 package SOT1215<br>1.2<br>0.45 (2x) 0.3<br>1.1<br>0.35 (2x) 0.25 (2x)<br>0.4<br>0.75<br>0.5 0.3 0.4<br>1.5 1.4 0.4 0.5 1.3<br>0.5 0.3 0.4<br>0.3<br>0.4<br>0.5<br>1.3<br>solder land solder land plus solder paste<br>occupied area solder resist<br>Dimensions in mm<br>Issue date 12-11-23 sot1215_fr<br>13-03-06<br>**----- End of picture text -----**<br>


**==> picture [267 x 9] intentionally omitted <==**

**----- Start of picture text -----**<br>
Fig. 11. Reflow soldering footprint for DFN1010D-3 (SOT1215)<br>**----- End of picture text -----**<br>


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BAS21QA 

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**Product data sheet** 

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**BAS21QA** 

**High-voltage switching diode** 

## **14.  Revision history** 

|**14.  Revision history**|**14.  Revision history**||||
|---|---|---|---|---|
|**Table 8. Revision history**|||||
|**Data sheet ID**|**Release date**|**Data sheet status**|**Change notice**|**Supersedes**|
|BAS21QA v.1|20180409|Product data sheet|-|-|



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**Product data sheet** 

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**BAS21QA** 

**High-voltage switching diode** 

## **15.  Legal information** 

## **Data sheet status** 

|**Document**<br>**status [1]**<br>**[2]**|**Product**<br>**status [3]**|**Definition**|
|---|---|---|
|Objective<br>[short] data<br>sheet|Development|This document contains data from<br>the objective specification for product<br>development.|
|Preliminary<br>[short] data<br>sheet|Qualification|This document contains data from the<br>preliminary specification.|
|Product<br>[short] data<br>sheet|Production|This document contains the product<br>specification.|



[1] Please consult the most recently issued document before initiating or completing a design. 

[2] The term 'short data sheet' is explained in section "Definitions". 

[3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nexperia.com. 

## **Definitions** 

**Preview** — The document is a preview version only. The document is still subject to formal approval, which may result in modifications or additions. Nexperia does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. 

**Draft** — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. Nexperia does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. 

**Short data sheet** — A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local Nexperia sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. 

**Product specification** — The information and data provided in a Product data sheet shall define the specification of the product as agreed between Nexperia and its customer, unless Nexperia and customer have explicitly agreed otherwise in writing. In no event however, shall an agreement be valid in which the Nexperia product is deemed to offer functions and qualities beyond those described in the Product data sheet. 

## **Disclaimers** 

**Limited warranty and liability** — Information in this document is believed to be accurate and reliable. However, Nexperia does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Nexperia takes no responsibility for the content in this document if provided by an information source outside of Nexperia. 

In no event shall Nexperia be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. 

Notwithstanding any damages that customer might incur for any reason whatsoever, Nexperia’ aggregate and cumulative liability towards customer 

for the products described herein shall be limited in accordance with the _Terms and conditions of commercial sale_ of Nexperia. 

**Right to make changes** — Nexperia reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. 

**Suitability for use in automotive applications** — This Nexperia product has been qualified for use in automotive applications. Unless otherwise agreed in writing, the product is not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an Nexperia product can reasonably be expected to result in personal injury, death or severe property or environmental damage. Nexperia and its suppliers accept no liability for inclusion and/or use of Nexperia products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. 

**Quick reference data** — The Quick reference data is an extract of the product data given in the Limiting values and Characteristics sections of this document, and as such is not complete, exhaustive or legally binding. 

**Applications** — Applications that are described herein for any of these products are for illustrative purposes only. Nexperia makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. 

Customers are responsible for the design and operation of their applications and products using Nexperia products, and Nexperia accepts no liability for any assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the Nexperia product is suitable and fit for the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. 

Nexperia does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer’s applications or products, or the application or use by customer’s third party customer(s). Customer is responsible for doing all necessary testing for the customer’s applications and products using Nexperia products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customer(s). Nexperia does not accept any liability in this respect. 

**Limiting values** — Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device. Limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the Recommended operating conditions section (if present) or the Characteristics sections of this document is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. 

**Terms and conditions of commercial sale** — Nexperia products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nexperia.com/profile/terms, unless otherwise agreed in a valid written individual agreement. In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. Nexperia hereby expressly objects to applying the customer’s general terms and conditions with regard to the purchase of Nexperia products by customer. 

**No offer to sell or license** — Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. 

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**Translations** — A non-English (translated) version of a document is for reference only. The English version shall prevail in case of any discrepancy between the translated and English versions. 

## **Trademarks** 

Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. 

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**Product data sheet** 

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**High-voltage switching diode** 

## **16. Contents** 

**1.  General description......................................................1 2.  Features and benefits.................................................. 1 3.  Applications.................................................................. 1 4.  Quick reference data....................................................1 5.  Pinning information......................................................2 6.  Ordering information....................................................2 7.  Marking..........................................................................2 8.  Limiting values............................................................. 3 9.  Thermal characteristics............................................... 3 10.  Characteristics............................................................5 11.  Test information..........................................................7 12.  Package outline.......................................................... 7 13.  Soldering..................................................................... 8 14.  Revision history..........................................................9 15.  Legal information..................................................... 10** 

## © **Nexperia B.V. 2018. All rights reserved** 

For more information, please visit: http://www.nexperia.com For sales office addresses, please send an email to: salesaddresses@nexperia.com **Date of release: 9 April 2018** 

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**Product data sheet**