BSS138DWQ-7

**BSS138DWQ** e [| **DUAL N-CHANNEL ENHANCEMENT MODE FIELD EFFECT TRANSISTOR** 

## **Product Summary** 

|**V(BR)DSS**|**RDS(ON) Max**|**ID Max**<br>**TA = +25°C**|
|---|---|---|
|50V|3.5Ω @ VGS= 10V|200mA|



## **Features** 

- Low On-Resistance 

- Low Gate Threshold Voltage 

- Low Input Capacitance 

- Fast Switching Speed 

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

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

## **Description** 

This MOSFET is designed to minimize the on-state resistance (RDS(ON)), yet maintain superior switching performance, making it ideal for high efficiency power management applications. 

- **The BSS138DWQ is suitable for automotive applications requiring specific change control; this part is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities.** 

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

## **Applications** 

- Load Switch 

## **Mechanical Data** 

- Case: SOT-363 

- 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. Solderable per MIL-STD-202, Method 208 

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Top View 

- 

- 

- Terminal Connections: See Diagram 

- Weight: 0.006 grams (Approximate) 

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D2 G1 S1<br>S2 G2 D1<br>Top View<br>Internal 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)|
|---|---|---|
||||
|**Part Number**|**Case**|**Packaging**|
|BSS138DWQ-7|SOT363|3,000/Tape &Reel|
|BSS138DWQ-13|SOT363|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/. 

## **Marking Information** 

K38 = Product Type Marking Code **K38** YMYM YM = Date Code Marking Y or = Year (ex: D = 2016) M = Month (ex: 9 = September) Date Code Key 

**Year 2005 2006 … 2016 2017 2018 2019 2020 2021 2022 2023** ~~ee~~ **Code** S T … D E F G H I J K **Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Code** 1 2 3 4 5 6 7 8 9 O N D ~~-——} —} — + +} — + —}— + —_}— + —-}— +--+} —~~ 

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BSS138DWQ Document number: DS38849 Rev. 2 - 2 

October 2019 © Diodes Incorporated 

**BSS138DWQ** 

## **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**|**BSS138DW**|**Units**|
|Drain-SourceVoltage|VDSS|50|V|
|Drain-Gate Voltage(Note 7)|VDGR|50|V|
|Gate-SourceVoltage<br>Continuous|VGSS|20|V|
|Drain Current(Note 5)<br>Continuous|ID|200|mA|



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

|**Thermal 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.)|||
|---|---|---|---|
|**Characteristic**|**Symbol**|**BSS138DW**|**Units**|
|Total Power Dissipation(Note 5)|PD|200|mW|
|Thermal Resistance, JunctiontoAmbient|RθJA|625|°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.)|**Electrical Characteristics** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|
|---|---|---|---|---|---|---|
||||||||
|**Characteristic**<br>~~—_——————~~|**Symbol **<br>~~—_——————~~|**Min**<br>~~—_——————~~|**Typ**<br>~~—_——————~~|**Max **<br>~~—_——————~~|**Unit**<br>~~—_——————~~|**Test Condition **<br>~~—_——————~~|
|**OFFCHARACTERISTICS **(Note 6)<br>~~—_——————~~|||||||
|Drain-Source Breakdown Voltage<br>~~—_——————~~|BVDSS<br>~~—_——————~~|50<br>~~—_——————~~|75<br>~~—_——————~~|<br>~~—_——————~~|V<br>~~—_——————~~|VGS= 0V,ID= 250μA<br>~~—_——————~~|
|Zero GateVoltageDrainCurrent<br>~~a~~|IDSS<br>~~a~~|<br>~~a~~|<br>~~a~~|0.5<br>~~a~~|µA<br>~~a~~|VDS=50V,VGS=0V<br>~~a~~|
|Gate-BodyLeakage<br>~~a~~|IGSS<br>~~a~~|<br>~~a~~|<br>~~a~~|100<br>~~a~~|nA<br>~~a~~|VGS=20V,VDS=0V<br>~~a~~|
|**ON CHARACTERISTICS **(Note 6)<br>~~a~~<br>~~ee~~|||||||
|Gate Threshold Voltage<br>~~ee~~|VGS(TH)<br>~~ee~~|0.5<br>~~ee~~|1.2<br>~~ee~~|1.5<br>~~ee~~|V<br>~~ee~~|VDS= VGS,ID= 250μA<br>~~ee~~|
|StaticDrain-Source On-Resistance<br>~~a~~|RDS(ON)<br>~~a~~|<br>~~a~~|1.4<br>~~a~~|3.5<br>~~a~~|Ω<br>~~a~~|VGS= 10V,ID=0.22A<br>~~a~~|
|Forward Transconductance<br>~~a~~|DS(ON)<br>gFS<br>~~a~~|100<br>~~a~~|<br>~~a~~|<br>~~a~~|mS<br>~~a~~|VDS=25V,ID= 0.2A,f = 1.0KHz<br>~~a~~|
|**DYNAMIC CHARACTERISTICS**<br>~~a~~|||||||
|Input Capacitance|CISS|||50|pF|VDS= 10V, VGS= 0V, f = 1.0MHz|
|Output Capacitance|COSS|||25|pF||
|Reverse Transfer Capacitance<br>~~———~~|CRSS<br>~~a~~|<br>~~a~~|<br>~~a~~|8.0<br>~~a~~|pF<br>~~ae~~||
|**SWITCHING CHARACTERISTICS**<br>~~———~~<br>~~aae~~|||||||
|Turn-On DelayTime<br>~~———~~|tD(ON)<br>~~a~~|<br>~~a~~|<br>~~a~~|20<br>~~a~~|ns<br>~~ae~~|VDD= 30V, ID= 0.2A,<br>RGEN=50Ω|
|Turn-Off DelayTime<br>~~———~~|D(ON)<br>tD(OFF)<br>~~a~~|<br>~~a~~|<br>~~a~~|20<br>~~a~~|ns<br>~~ae~~||



Notes: 5.    Device mounted on FR-4 PCB, 1 inch x 0.85 inch x 0.062 inch; pad layout as shown at http://www.diodes.com/package-outlines.html. 6.    Short duration pulse test used to minimize self-heating effect. 

7.    RGS  20KΩ. 

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0.6 T  = 25j °C VGS = 3.5V 0.8 -55°C<br>VDS = 1V<br>0.7<br>0.5 eee SERnPa<br>VGS = 3.25V 25°C<br>0.6<br>0.4<br>VGS = 3.0V 0.5<br>150°C<br>0.3 | V GS  = 2.75V 0.4 L Y<br>0.3<br>0.2 Lo eee Zee<br>VGS = 2.5V<br>0.2<br>|{--— Saene/ 400<br>0.1<br>0.1<br>pote Se an<br>0 LEE LE 0 V/A<br>0 1 2 3 4 5 6 7 8 9 10 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5<br>VDS, DRAIN-SOURCE VOLTAGE (V) VGS, GATE-SOURCE VOLTAGE (V)<br>Fig. 1  Drain-Source Current vs. Drain-Source Voltage<br>Fig. 2  Transfer Characteristics<br>2.45 2<br>2.25 1.8 ee e POE<br>1.6 PPRSECCEET<br>2.05<br>1.4 COOPPPREEEE EEE<br>1.85 VGS = 10V<br>ID = 0.5A 1.2 PLT ET TT ETPPALET<br>1.65<br>1 Coe<br>1.45 0.8 CoC<br>1.25 0.6 CoE<br>VGS = 4.5V<br>1.05 ID = 0.075A 0.4<br>0.85 0.2 CCC<br>0.65 A 0 CeCeCCE<br>-55 -5 45 95 145 -55 -25 0 25 50 75 100 125 150<br>T , JUNCTION TEMPERATURE (j ( 癈 C)) T , JUNCTION TEMPERATURE j ( 癈 C )<br>Fig. 3  Drain-Source On Resistance vs. Junction Temperature Fig. 4  Gate Threshold Voltage vs. Junction Temperature<br>8 9<br>VGS = 2.5V 150°C VGS = 2.75V<br>8<br>7<br>tt te T y<br>7<br>6 150°C<br>5 cooperf) 25°C = 6 Eo<br>5<br>4 Per e E a<br>t e 4 a e<br>3 foe a 25°C<br>-55°C 3<br>2 = e r<br>2<br>-55°C<br>1 CAP RA 1 e e<br>0 T T 0 TTER E<br>0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0 0.05 0.1 0.15 0.2 0.25<br>ID, DRAIN-CURRENT (A) ID, DRAIN-CURRENT (A)<br>Fig. 5  Drain-Source On-Resistance vs. Drain-Current Fig. 6  Drain-Source On-Resistance vs. Drain-Current<br>)<br>ON-RESISTANCE (<br>, NORMALIZED DRAIN-SOURCE<br>R<br>DS(ON)<br>, DRAIN-SOURCE CURRENT (A)<br>ID<br>, GATE THRESHOLD VOLTAGE (V)<br>GS(th)<br>V<br>, DRAIN-SOURCE CURRENT (A)<br>ID<br>)<br>, DRAIN-SOURCE ON-RESISTANCE (<br>R<br>DS(ON)<br>)<br>, DRAIN-SOURCE ON-RESISTANCE (<br>R<br>DS(ON)<br>**----- End of picture text -----**<br>


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6 3.5<br>VGS = 4.5V VGS = 10V 150°C<br>5 HH 150 ° C 3 B=<br>2.5<br>4 CCoeeeeea TF<br>2 CAT<br>3 __-— [8] | CEE 25°C<br>25°C 1.5<br>2<br>BERRREBSE 1 OReenae<br>Hise |  TTT -55°C<br>1 eee -55°C 0.5<br>0 TTT TT i i) 0<br>0 0.5 0 0.5<br>ID, DRAIN-CURRENT (A) Fig. 8  Drain-Source On-Resistance vs. Drain-CurrentID, DRAIN-CURRENT (A)<br>Fig. 7  Drain-Source On-Resistance vs. Drain-Current<br>1 100<br>VGS = 0V<br>f = 1MHz<br>Y<br>a —————<br>Ciss<br>0.1 f f 150°C°CC f a<br>f<br>-55°C°CC<br>10<br>Coss<br>0.01 25°C°CC<br>J fe +> SS<br>SE S e — — Crss<br>arere ie 1 Ty<br>0 0.2 0.4 0.6 0.8 1 1.2 0 5 10 15 20 25 30<br>VSD, DIODE FORWARD VOLTAGE (V)SD, DIODE FORWARD VOLTAGE (V), DIODE FORWARD VOLTAGE (V) VDS, DRAIN-SOURCE VOLTAGE (V)<br>Fig. 9  Body Diode Current vs. Body Diode Voltage Fig. 10  Capacitance vs. Drain-Source Voltage<br>)<br>, DRAIN-SOURCE ON-RESISTANCE (<br>R<br>DS(ON)<br>)<br>, DRAIN-SOURCE ON-RESISTANCE (<br>R<br>DS(ON)<br>C, CAPACITANCE (pF)<br>**----- End of picture text -----**<br>


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1<br>Y<br>a<br>0.1 f f 150°C°CC f<br>f<br>-55°C°CC<br>0.01 25°C°CC<br>J fe<br>SE S e<br>0.001 arere ie<br>0 0.2 0.4 0.6 0.8 1 1.2<br>VSD, DIODE FORWARD VOLTAGE (V)SD, DIODE FORWARD VOLTAGE (V), DIODE FORWARD VOLTAGE (V)<br>Fig. 9  Body Diode Current vs. Body Diode Voltage<br>, DIODE CURRENT (A)<br>ID<br>**----- End of picture text -----**<br>


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**BSS138DWQ** 

## **Package Outline Dimensions** 

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

## **SOT363** 

|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|E1<br>b<br>E<br>F<br>~~fee7~~<br>~~ou~~|||||**Dim**<br>**A1**<br>**A2**<br>**b**<br>**c**<br>**D**|**SOT363**<br>**Min**<br>**Max**<br>0.00<br>0.10<br>0.90<br>1.00<br>0.10<br>0.30<br>0.10 0.22<br>1.802.20|**SOT363**<br>**Min**<br>**Max**<br>0.00<br>0.10<br>0.90<br>1.00<br>0.10<br>0.30<br>0.10 0.22<br>1.802.20|**Typ**<br>0.05<br>1.00<br>0.25<br>0.11<br>2.15|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
||||||||||||||||||||||**E**|2.00|2.20|2.10|
||||||||||||||||||||||**E1**|1.15|1.35|1.30|
|||||||||D|||||||||||||**e**|0.650BSC|||
||||||||||||||||||||||**F**|0.40|0.45|0.425|
||||||||||||||||||||||**L**|0.25|0.40|0.30|
|A2|||||||||||||||||||||**a**<br>0°<br>8°<br>–<br>**All Dimensions in mm**||||
||||||||||||||||||||||||||
||||||||||||||||||||||||||
|||||||||||||||c||||||a|||||
|||A1||||||||e|||||||||L||||||



## **Suggested Pad Layout** 

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

## **SOT363** 

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C<br>ei<br>Y1 G<br>Y<br>“ogo X<br>**----- End of picture text -----**<br>


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


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BSS138DWQ Document number: DS38849 Rev. 2 - 2 

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**BSS138DWQ** 

## **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 © 2019, Diodes Incorporated 

**www.diodes.com** 

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BSS138DWQ Document number: DS38849 Rev. 2 - 2 

October 2019 © Diodes Incorporated