Product details


VDS (V) 100 Configuration Single Rds(on) max at VGS=10 V (mOhms) 61 IDM, max pulsed drain current (Max) (A) 36 QG typ (nC) 4.3 QGD typ (nC) 0.8 Package (mm) SON3x3 VGS (V) 20 VGSTH typ (V) 3.2 ID, silicon limited at Tc=25degC (A) 13.7 ID, package limited (A) 15 Logic level No open-in-new Find other N-channel MOSFET transistors


  • Ultra-Low Qg and Qgd
  • Low-Thermal Resistance
  • Avalanche Rated
  • Lead Free
  • RoHS Compliant
  • Halogen Free
  • SON 3.3-mm × 3.3-mm Plastic Package

All trademarks are the property of their respective owners.

open-in-new Find other N-channel MOSFET transistors


This 100-V, 49-mΩ, SON 3.3-mm × 3.3-mm NexFET™ power MOSFET is designed to minimize conduction losses and reduce board footprint in PoE applications.

open-in-new Find other N-channel MOSFET transistors

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 6
Type Title Date
* Datasheet CSD19538Q3A 100-V N-Channel NexFET™ Power MOSFET datasheet (Rev. A) Mar. 20, 2017
Technical articles Understanding the benefits of “lead-free” power MOSFETs Feb. 07, 2019
Application note QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Technical articles When to use load switches in place of discrete MOSFETs Feb. 03, 2016
Technical articles 48V systems: Driving power MOSFETs efficiently and robustly Oct. 08, 2015
Application note Ringing Reduction Techniques for NexFET High Performance MOSFETs Nov. 16, 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Software development

SLPC019.ZIP (338 KB)
SPLC001A.ZIP (311 KB)

Design tools & simulation

SLPM184A.ZIP (5 KB) - PSpice Model
Buck Converter NexFET™ Selection Tool
FETPWRCALC — This tool is designed to assist engineers in the selection of Texas Instruments’ discrete power MOSFET and Power Block devices for their synchronous buck design. Users can input the conditions for their power supply and compare various discrete and power block solutions by power loss, relative (...)
  • Vary power supply conditions and observe TI’s most efficient solutions for any set of input parameters
  • Select from a pre-established list of TI controllers or enter your own custom IC
  • Rank solutions by effective power loss and compare by relative 1k price, device package, and total PCB footprint
  • (...)
Power loss calculation tool for non-synchronous boost converter
NONSYNC-BOOST-FET-LOSS-CALC — MOSFET power loss calculator for non-synchronous boost converter
  • Calculates power loss for TI MOSFETs
SPLR001.ZIP (824 KB)

Reference designs

参考设计 Download
Dual-input redundant PoE PD with smooth transition reference design
PMP20859 — This reference design implements an IEEE802.3bt (draft) Power over Ethernet (PoE) Powered Device (PD) with dual redundant inputs and a smooth transition between these inputs and an auxiliary input.  The design consists of a 5V/6A synchronous flyback converter and allows for up to three (...)
document-generic Schematic
参考设计 Download
Reference Design for Line AC Voltage Generation From Low-Voltage DC Source for Sensor Excitation
TIDA-01426 This reference design demonstrates a method for designers to achieve high-voltage signals that can be used for flame detection using discrete components. The reference design is built with low BOM-cost and small solution size in mind. By using push-pull converter topology, it is possible to achieve (...)
document-generic Schematic
参考设计 Download
Fully Autonomous Single Port Type 2 (30W) PoE PSE Reference Design
PMP20588 — The PMP20588 reference design utilizes the TPS23861 PSE controller to implement a single port Type 2 PoE PSE.  An isolated flyback converter, utilizing the LM5022 current mode PWM controller, accepts a 12Vdc/24Vac input and provides a 55Vdc/600mA output source for the PSE.  It is ideally (...)
document-generic Schematic
参考设计 Download
High Voltage Stepper Driver Reference Design
TIDA-01227 — The TIDA-01227 reference design is a 15 V to 70 V stepper motor controller for bipolar applications. The design uses Texas Instrument’s DRV8711 Bipolar Stepper Motor Controller gate driver, CSD19538Q3A 100V, N-Channel NexFET Power MOSFET s, CSD17483F4 30V, N-Channel FemtoFET&trade (...)
document-generic Schematic
参考设计 Download
9V-15V Input Voltage Boost Converter (200V@10mA) Reference Design
PMP20183 — This boost converter implements a voltage tripler which allows a high input-to-output boost ratio. This design is low cost and requires an area of less than 25mm x 25mm.
document-generic Schematic
参考设计 Download
10V to 32Vin 25Vout at 1A Factory Automation I/O Module Reference Design
PMP20430 — PMP20430 is a 4-switch buck-boost controller utilizing the LM5175 for industrial applications. This design has a minimum operating input voltage of 10V and a maximum input voltage of 32V, supports 25Vout @ 1A.  Switching frequency is set to 600kHz, during buck-boost mode, switching frequency (...)
document-generic Schematic
参考设计 Download
Isolated 24VAC/DC Solid-State Relay Reference Design
PMP12072 — This isolated, bi-directional, solid-state switch can control current flow into both AC and DC loads. Rated for 24VAC, it can switch loads up to approximately 1Arms/4Apeak.
document-generic Schematic

CAD/CAE symbols

Package Pins Download
(DNH) 8 View options

Ordering & quality

Information included:
  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​