Product details

VDS (V) 40 Configuration Single Rds(on) max at VGS=4.5 V (mOhms) 1.7 Rds(on) max at VGS=10 V (mOhms) 1.2 IDM - pulsed drain current (Max) (A) 400 QG typ (nC) 150 QGD typ (nC) 17 Package (mm) SON5x6 VGS (V) 20 VGSTH typ (V) 1.9 ID - silicon limited at Tc=25degC (A) 299 ID - package limited (A) 100 Logic level Yes
VDS (V) 40 Configuration Single Rds(on) max at VGS=4.5 V (mOhms) 1.7 Rds(on) max at VGS=10 V (mOhms) 1.2 IDM - pulsed drain current (Max) (A) 400 QG typ (nC) 150 QGD typ (nC) 17 Package (mm) SON5x6 VGS (V) 20 VGSTH typ (V) 1.9 ID - silicon limited at Tc=25degC (A) 299 ID - package limited (A) 100 Logic level Yes
  • Ultra-Low On Resistance
  • Low Thermal Resistance
  • Avalanche Rated
  • Logic Level
  • Pb Free Terminal Plating
  • RoHS Compliant
  • Halogen Free
  • SON 5-mm × 6-mm Plastic Package
  • Ultra-Low On Resistance
  • Low Thermal Resistance
  • Avalanche Rated
  • Logic Level
  • Pb Free Terminal Plating
  • RoHS Compliant
  • Halogen Free
  • SON 5-mm × 6-mm Plastic Package

This 40 V, 1 mΩ, SON 5 x 6 NexFET™ power MOSFET has been designed to minimize losses in power conversion applications.

This 40 V, 1 mΩ, SON 5 x 6 NexFET™ power MOSFET has been designed to minimize losses in power conversion applications.

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Pin-for-pin with same functionality to the compared device.
CSD18510Q5B ACTIVE 40-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 0.96 mOhm This product has lower resistance and lower charge with a similar price.

Technical documentation

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Type Title Date
* Data sheet CSD18509Q5B N-Channel NexFET Power MOSFETs datasheet (Rev. A) PDF | HTML 19 May 2017
Application note Tips for Successfully Paralleling Power MOSFETs PDF | HTML 31 May 2022
Technical article Understanding the benefits of “lead-free” power MOSFETs 08 Feb 2019
Application note QFN and SON PCB Attachment (Rev. B) PDF | HTML 24 Aug 2018
Application note Semiconductor and IC Package Thermal Metrics (Rev. C) PDF | HTML 19 Apr 2016
Technical article When to use load switches in place of discrete MOSFETs 03 Feb 2016
Technical article Motor Drive forum top FAQs: 3 methods to prevent electrical overstress 21 Dec 2015
Technical article 48V systems: Driving power MOSFETs efficiently and robustly 08 Oct 2015
Application note Ringing Reduction Techniques for NexFET High Performance MOSFETs 16 Nov 2011

Design & development

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

Support software

Power Loss Calculation Tool for Load Switch

SLPC019.ZIP (338 KB)
Simulation model

CSD18509Q5B PSpice Model (Rev. B) CSD18509Q5B PSpice Model (Rev. B)

Simulation model

CSD18509Q5B TINA-TI Spice Model CSD18509Q5B TINA-TI Spice Model

Calculation tool

MOTOR-DRIVE-FET-LOSS-CALC MOSFET power loss calculator for motor drive applications

This is an Excel-based MOSFET power loss calculator for brushless DC motor drive applications.
Calculation tool

NONSYNC-BOOST-FET-LOSS-CALC Power loss calculation tool for non-synchronous boost converter

MOSFET power loss calculator for non-synchronous boost converter
Calculation tool

SYNC-BOOST-FET-LOSS-CALC Power loss calculation tool for synchronous boost converter

MOSFET power loss calculator for synchronous boost converter applications.
Calculation tool

SYNC-BUCK-FET-LOSS-CALC MOSFET power loss calculator for synchronous buck converter applications

Quickly trade off size, cost and performance to select the optimal MOSFET based on application conditions.
Calculation tool

SYNC-RECT-FET-LOSS-CALC Power loss calculation tool for synchronous rectifier

MOSFET power loss calculator for synchronous rectifier applications
Reference designs

PMP4466 — Universal AC Input to 5V 3A Output Reference Design DOE6 and CoC V5 Tier 2 Compliant

The PMP4466 is an AC input to 5V 3A output reference design for high current charger applications, such as USB Type-C. The topology is Synchronous Rectified valley switched DCM Flyback which uses the UCC28740 and UCC24636. Good regulation and dynamic performance is achieved by using the secondary (...)
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PMP4403 — USB Type-C DFP Charger 5V3A SSR Control Adapter Reference Design

The PMP4403 is an AC in 5V 3A reference design for USB Type-C™ DFP charger applications. It also is compliant with BC 1.2 devices. The solution is a synchronous rectified QR flyback which uses the UCC28740 and UCC24636. Good regulation and dynamic performance is achieved by using a secondary (...)
Reference designs

PMP11281 — Universal AC Input, 5V/10A/50W PSR Flyback Power Supply W/over 88% Avg Efficiency Reference Design

PMP11281 is a quasi-resonant Flyback power suppy based on the UCC28730 primary side regulation (PSR) controller. The elimination of optocoupler using PSR topology promises higher reliability and lower system cost. The design achieves less than 40mW standby power losses and over 88% average (...)
Reference designs

PMP11232 — Universal AC Input 5V/6A/30W PSR Flyback Power Supply Reference Design w/Over 89.5% Avg Efficiency

PMP11232 is a quasi-resonant Flyback power suppy based on the UCC28730 primary side regulation (PSR) controller. The elimination of optocoupler using PSR topology promises higher reliability and lower system cost. The design achieves less than 40mW standby power losses and over 89.5% average (...)
Reference designs

PMP10974 — Universal AC Input 5V/10A/50W PSR Flyback Power Supply With Over 89% Avg Efficiency Reference Design

PMP10974 is a quasi-resonant Flyback power suppy based on the UCC28730 primary side regulation (PSR) controller. The elimination of optocoupler using PSR topology promises higher reliability and lower system cost. The design achieves less than 40mW standby power losses and over 89% average (...)
Reference designs

PMP10092 — 8V @ 7A Synchronous Boost Reference Design with LM5121

The PMP10092 reference design is a synchronous boost converter that can operate over a 3V to 8V input range and produce an 8V output at 7A load. The circuit has an output disconnection switch for safety. Due to the synchronous design a high efficiency of 97% can be achieved.
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