NSVBASH21LT1G
Small Signal Diode, Single, 250 V, 200 mA, 1.25 V, 50 ns, 2 A
- Manufacturer: ONSEMI
- Product type: Small Signal Diodes
- SVHC: No SVHC (25-Jun-2025)
- No. of Pins: 3Pins
- Product Range: -
- Qualification: AEC-Q101
- Diode Mounting: Surface Mount
- Diode Case Style: SOT-23
- Diode Configuration: Single
- Forward Voltage Max: 1.25V
- Forward Surge Current: 2A
- Reverse Recovery Time: 50ns
- Average Forward Current: 200mA
- Operating Temperature Max: 175°C
- Repetitive Peak Reverse Voltage: 250V
| Delivery and price | |
|---|---|
| Units per pack | 3000 |
| Price | 0.011 € |
| Current stock | 10+ |
| Lead time | 30 days |
**DATA SHEET www.onsemi.com** ## Switching Diode, High Voltage, High Temperature ## BASH19L Series ## **Features** - 175°C TJ(MAX) − Rated for High Temperature, Mission Critical Applications - NSV Prefixes for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q101 Qualified and PPAP Capable - These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant ## **HIGH VOLTAGE SWITCHING DIODE** **==> picture [192 x 134] intentionally omitted <==** **----- Start of picture text -----**<br> SOT−23<br>3 1<br>CATHODE ANODE<br>3<br>1<br>2<br>SOT−23 (TO−236)<br>CASE 318<br>STYLE 8<br>**----- End of picture text -----**<br> ## **MAXIMUM RATINGS** |**MAXIMUM RATINGS**|||| |---|---|---|---| |**Rating**|**Symbol**|**Value**|**Unit**| |Continuous Reverse Voltage<br>BASH19<br>BASH20<br>BASH21|VR|120<br>200<br>250|Vdc| |Repetitive Peak Reverse Voltage<br>BASH19<br>BASH20<br>BASH21|VRRM|120<br>200<br>250|Vdc| |Continuous Forward Current|IF|200|mAdc| |Peak Forward Surge Current<br>(1/2 Cycle, Sine Wave, 60 Hz)|IFSM|2|A| |Repetitive Peak Forward Current<br>(Pulse Train: TON= 1 s, TOFF= 0.5 s)|IFRM|0.6|A| |Junction and Storage Temperature<br>Range|TJ, Tstg|−55 to +175|°C| |Electrostatic Discharge|ESD|HM < 500<br>MM < 400|V<br>V| ## **MARKING DIAGRAM** ||||3|||||| |---|---|---|---|---|---|---|---|---| ||||xxx M�|||||| |||||�||||| |1|||||2|||| |AD7|||= BASH19L|||||| |AC7|||= BASH20L|||||| |AA7|||= BASH21L|||||| |M<br>�|||= Date Code<br>= Pb−Free Package|||||| (Note: Microdot may be in either location) ## **ORDERING INFORMATION** See detailed ordering and shipping information in the package dimensions section on page 3 of this data sheet. Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. Publication Order Number: **BASH19L/D** **1** © Semiconductor Components Industries, LLC, 2018 **June, 2023 − Rev. 3** **BASH19L Series** ## **THERMAL CHARACTERISTICS** |**Characteristic**|**Symbol**|**Max**|**Unit**| |---|---|---|---| |Total Device Dissipation FR−5 Board<br>(Note 1)<br>TA= 25°C<br>Derate above 25°C|PD|300<br>1.8|mW<br>mW/°C| |Thermal Resistance Junction−to−Ambient (SOT−23)|R�JA|340|°C/W| |Total Device Dissipation Alumina Substrate<br>(Note 2)<br>TA= 25°C<br>Derate above 25°C|PD|400<br>2.4|mW<br>mW/°C| |Thermal Resistance Junction−to−Ambient|R�JA|250|°C/W| |Junction and Storage Temperature Range|TJ, Tstg|−55 to +175|°C| 1. FR−5 = 1.0 � 0.75 � 0.062 in. 2. Alumina = 0.4 � 0.3 � 0.024 in. 99.5% alumina. ## **ELECTRICAL CHARACTERISTICS** (TA = 25 ° C unless otherwise noted) |**ELECTRICAL CHARACTERISTICS**(TA= 25°C unless otherwise noted)||||| |---|---|---|---|---| |**Characteristic**|**Symbol**|**Min**|**Max**|**Unit**| |Reverse Voltage Leakage Current<br>(VR= 100 Vdc)<br>BASH19<br>(VR= 150 Vdc)<br>BASH20<br>(VR= 200 Vdc)<br>BASH21<br>(VR= 100 Vdc, TJ= 175°C)<br>BASH19<br>(VR= 150 Vdc, TJ= 175°C)<br>BASH20<br>(VR= 200 Vdc, TJ= 175°C)<br>BASH21|IR|−<br>−<br>−<br>−<br>−<br>−|0.1<br>0.1<br>0.1<br>100<br>100<br>100|�Adc| ||V(BR)|120<br>200<br>250|−<br>−<br>−|Vdc| |Reverse Breakdown Voltage<br>(IBR= 100�Adc)<br>BASH19<br>(IBR= 100�Adc)<br>BASH20<br>(IBR= 100�Adc)<br>BASH21||||| |||||| |Forward Voltage<br>(IF= 100 mAdc)<br>(IF= 200 mAdc)|VF|−<br>−|1.0<br>1.25|Vdc| |Diode Capacitance (VR= 0, f = 1.0 MHz)|CD|−|5.0|pF| |Reverse Recovery Time (IF= IR= 30 mAdc, IR(REC)= 3.0 mAdc, RL= 100)|trr|−|50|ns| Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. **==> picture [484 x 173] intentionally omitted <==** **----- Start of picture text -----**<br> 820 �<br>IF<br>+10 V 2.0 k 0.1 �F tr t p t<br>100 �H IF 10% t rr t<br>0.1 �F<br>D.U.T. 90%<br>50 � OUTPUT 50 � INPUT IR(REC) = 3.0 mA<br>IR<br>PULSE SAMPLING VR OUTPUT PULSE<br>GENERATOR OSCILLOSCOPE INPUT SIGNAL<br>(IF = IR = 30 mA; MEASURED<br>at IR(REC) = 3.0 mA)<br>Notes: 1. A 2.0 k � variable resistor adjusted for a Forward Current (IF) of 30 mA.<br>Notes: 2. Input pulse is adjusted so IR(peak) is equal to 30 mA.<br>Notes: 3. tp » trr<br>**----- End of picture text -----**<br> **Figure 1. Recovery Time Equivalent Test Circuit** **www.onsemi.com** **2** **BASH19L Series** ## **TYPICAL CHARACTERISTICS** **==> picture [488 x 388] intentionally omitted <==** **----- Start of picture text -----**<br> 200 100<br>175°C<br>10<br>175°C 125°C<br>20 1<br>125°C 85°C<br>0.1<br>85°C<br>2.0 0.01<br>25°C<br>0.001<br>25°C -55°C<br>0.2 0.0001<br>0.2 0.4 0.6 0.8 1.0 1.2 0 30 60 90 120 150 180 210 240 270<br>VF, FORWARD VOLTAGE (V) VR, REVERSE VOLTAGE (V)<br>Figure 2. Forward Voltage Figure 3. Leakage Current<br>1.2 30<br>1.1 Tf = 1 MHzA = 25°C 25 Based on square wave currentsT J = 25°C prior to surge<br>1.0<br>20<br>0.9<br>0.8 15<br>0.7<br>10<br>0.6<br>5<br>0.5<br>0.4 0<br>0 2 4 6 8 10 0.001 0.01 0.1 1 10 100 1000<br>VR, REVERSE VOLTAGE (V) tp, PULSE ON TIME (ms)<br>A)<br>μ<br>IR, REVERSE CURRENT (<br>IF, FORWARD CURRENT (mA)<br>CD, DIODE CAPACITANCE (pF)<br>, FORWARD SURGE MAX CURRENT (A)<br>IFSM<br>**----- End of picture text -----**<br> **Figure 4. Capacitance** **Figure 5. Forward Surge Current** ## **ORDERING INFORMATION** |**ORDERING INFORMATION**||| |---|---|---| |**Device**|**Package**|**Shipping**†| |BASH19LT1G|SOT−23<br>(Pb−Free)|3000 / Tape & Reel| |NSVBASH19LT1G*|SOT−23<br>(Pb−Free)|3000 / Tape & Reel| |BASH20LT1G|SOT−23<br>(Pb−Free)|3000 / Tape & Reel| |NSVBASH20LT1G*|SOT−23<br>(Pb−Free)|3000 / Tape & Reel| |BASH21LT1G|SOT−23<br>(Pb−Free)|3000 / Tape & Reel| |NSVBASH21LT1G*|SOT−23<br>(Pb−Free)|3000 / Tape & Reel| †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *NSV Prefixes for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q101 Qualified and PPAP Capable − release available upon request. **www.onsemi.com** **3** **onsemi** , , and other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba “ **onsemi** ” or its affiliates and/or subsidiaries in the United States and/or other countries. **onsemi** owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of **onsemi** ’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. **onsemi** reserves the right to make changes at any time to any products or information herein, without notice. The information herein is provided “as−is” and **onsemi** makes no warranty, representation or guarantee regarding the accuracy of the information, product features, availability, functionality, or suitability of its products for any particular purpose, nor does **onsemi** assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using **onsemi** products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by **onsemi** . “Typical” parameters which may be provided in **onsemi** data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. **onsemi** does not convey any license under any of its intellectual property rights nor the rights of others. **onsemi** products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use **onsemi** products for any such unintended or unauthorized application, Buyer shall indemnify and hold **onsemi** and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that **onsemi** was negligent regarding the design or manufacture of the part. **onsemi** is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. ## **ADDITIONAL INFORMATION** **TECHNICAL PUBLICATIONS** : **ONLINE SUPPORT** : www.onsemi.com/support **Technical Library:** www.onsemi.com/design/resources/technical−documentation **For additional information, please contact your local Sales Representative at onsemi Website:** www.onsemi.com www.onsemi.com/support/sales **==> picture [232 x 43] intentionally omitted <==**
Updated at June 8, 2026
onsemi is a premier global supplier of intelligent power and sensing technologies, driving disruptive innovations across the automotive, industrial, and cloud infrastructure markets. Recognized for their commitment to sustainability and reliable supply chains, the company accelerates advancements in vehicle electrification, industrial automation, and 5G networks by solving the industry's most complex design challenges. At the core of their portfolio is an industry-leading selection of discrete semiconductors. This extensive range features thousands of high-performance bipolar transistors, single and dual MOSFETs, and a comprehensive array of diodes, including Zener, Schottky, and fast-recovery rectifiers. Engineered for superior thermal performance and energy efficiency, these foundational components are critical for demanding power conversion, switching, and signal conditioning applications. Beyond essential discretes, onsemi provides a robust suite of advanced power management and circuit protection solutions. Their lineup includes intelligent power modules, single IGBTs, and transient voltage suppression (TVS) diodes designed to safeguard sensitive circuitry. Complimented by integrated passive filters, AC/DC LED driver ICs, and specialized sub-2.4GHz RF transceivers, onsemi equips engineers with the scalable, high-quality technologies needed to build a cleaner, smarter, and more connected world.
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