Bipolar transistors

Diodes

ESD protection, TVS, filtering and signal conditioning

MOSFETs

SiC MOSFETs

GaN FETs

IGBTs

Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

BAS21

High-voltage switching diode

High-voltage switching diode encapsulated in a small SOT23 Surface-Mounted Device (SMD) plastic package.

Alternatives

Features and benefits

  • High switching speed: trr ≤ 50 ns

  • Low leakage current

  • Reverse voltage VR ≤ 200 V

  • Low capacitance: Cd ≤ 5 pF

  • Small SMD plastic package

Applications

  • High-speed switching at high voltage

  • High-voltage general-purpose switching

  • Voltage clamping

  • Reverse polarity protection

Parametrics

Type number Package version Package name Size (mm) VR [max] (V) IFSM [max] (A) VF [max] (mV) IR [max] (nA) IFRM (mA) Configuration trr [max] (ns) IF [max] (mA) Cd [max] (pF) Automotive qualified
BAS21 SOT23 SOT23 2.9 x 1.3 x 1 200 9 1000@IF=100mA 100@VR=200V 625 single 50 200 5 N

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
BAS21 BAS21,215
(933502040215)		 Active JS% SOT23
(SOT23) 		SOT23 REFLOW_BG-BD-1
WAVE_BG-BD-1
SOT23_215
BAS21,235
(933502040235)		 Active JS% SOT23_235
BAS21Z
(933502040300)		 Samples available / Development JS% Not available

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
BAS21 BAS21,215 BAS21 rohs rhf rhf
BAS21 BAS21,235 BAS21 rohs rhf rhf
BAS21 BAS21Z BAS21 rohs rhf rhf
Quality and reliability disclaimer

Documentation (11)

File name Title Type Date
BAS21 High-voltage switching diode Data sheet 2022-06-30
SOT23 3D model for products with SOT23 package Design support 2019-01-22
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
SOT23_mk plastic, surface-mounted package; 3 terminals; 1.9 mm pitch; 2.9 mm x 1.3 mm x 1 mm body Marcom graphics 2017-01-28
SOT23 plastic, surface-mounted package; 3 terminals; 1.9 mm pitch; 2.9 mm x 1.3 mm x 1 mm body Package information 2022-10-12
SOT23_215 Reel pack for SMD, 7"; Q3/T4 product orientation Packing information 2020-04-29
SOT23_235 Reel pack for SMD, 11"; Q3/T4 product orientation Packing information 2020-06-01
BAS21_Nexperia_Product_Reliability BAS21 Nexperia Product Reliability Quality document 2024-04-22
REFLOW_BG-BD-1 Reflow soldering profile Reflow soldering 2021-04-06
BAS21 BAS21 SPICE model SPICE model 2024-10-14
WAVE_BG-BD-1 Wave soldering profile Wave soldering 2021-09-08

Support

If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.

Models

File name Title Type Date
BAS21 BAS21 SPICE model SPICE model 2024-10-14
SOT23 3D model for products with SOT23 package Design support 2019-01-22

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
BAS21 BAS21,215 933502040215 Active SOT23_215 3,000 Order product
BAS21 BAS21,235 933502040235 Active SOT23_235 10,000 Order product

Sample

As a Nexperia customer you can order samples via our sales organization.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples. Check out the list of official distributors.

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.

Interactive datasheet

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
BAS21 BAS21,215 933502040215 SOT23 Order product
BAS21 BAS21,235 933502040235 SOT23 Order product
BAS21 BAS21Z 933502040300 SOT23 Order product