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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Diodes Incorporated DXTP22040DFG-7

Name: DXTP22040DFG-7
Brand: Diodes Incorporated
SKU: DXTP22040DFG-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DXTP22040DFG-7

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

Package:: 8-PowerVDFN

Datasheet:: DXTP22040DFG-7.pdf

Description:: TRANS PNP 40V 2A POWERDI3

Quantity:: RFQ Add To RFQ list

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Inventory:1,980

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Product details

Overview

DXTP22040DFG-7 from Diodes Incorporated is a 40V PNP low V_CE(sat) transistor in PowerDI3333-8 package, rated for -2A continuous collector current, -320mV saturation voltage at -1A, and operation up to +175°C. It serves as a high-side switch in power management circuits requiring thermally efficient, compact switching with wettable flanks for automated optical inspection.

For engineers reviewing the DXTP22040DFG-7 datasheet, DXTP22040DFG-7 pinout, DXTP22040DFG-7 application, or DXTP22040DFG-7 equivalent, key selection criteria include verified V_CE(sat) performance at -1A/-100mA drive, thermal resistance of 44°C/W on 50mm × 50mm 2oz copper, and compatibility with high-temperature motor driving and supply line switching layouts.

Technical Context

This PNP bipolar junction transistor operates with a minimum BV_CEO of -40V and supports peak pulse currents up to -3A. Its h_FE ranges from 200 to 900 across IC = -100mA to -2A, enabling stable gain in both linear and saturated switching modes.

Designed for high-density PCBs, it leverages the PowerDI3333-8's exposed collector tab for low R_θJL (11°C/W) and wettable flank geometry. The device meets JEDEC Class 3A HBM ESD rating (4,000V) and is fully RoHS 3 and halogen-free.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	-40V - Ensures safe blocking in 24V/36V industrial supply rails
I_C (cont.)	-2A - Supports sustained load switching without derating below +125°C
V_CE(sat)	<-320mV @ -1A/-100mA - Minimizes conduction loss in high-side switch configurations
T_J max	+175°C - Enables deployment in under-hood automotive or enclosed motor driver enclosures
R_θJL	11°C/W - Direct thermal path from junction to soldered collector tab improves power handling
ESD HBM	4,000V - Robust against assembly-level electrostatic discharge during SMT placement
Package	PowerDI3333-8 - 3.3mm × 3.3mm footprint with wettable flanks for AOI-compatible reflow

Pinout & Package

Package: PowerDI3333-8 (SWP, Type UX), surface-mount, thermally enhanced with exposed collector tab and wettable flank leads.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (E)	Emitter	Main current exit terminal; connected to higher potential rail in high-side switch topology
Pins 2–4 (C)	Collector (common tab)	Exposed metal tab - primary thermal path and high-current return node
Pins 5–8 (B)	Base	Control input; parallel pins reduce bond wire inductance and improve switching consistency

Key Features

Feature	Design Value
Low V_CE(sat)	<-320mV at -1A ensures ≤320mW conduction loss per switch in 24V systems
Thermal efficiency	R_θJL = 11°C/W enables >2W dissipation with <22°C rise above tab temperature
High-temperature rating	+175°C operation allows use in engine control modules without external heatsinking
Wettable flank leads	Facilitates 100% automated optical inspection of solder joint integrity on fine-pitch PCBs
Lead-free & green	Halogen- and antimony-free compound meets IPC-1752a Tier 1 reporting requirements

Applications

Automotive Engine Control

Industrial Motor Driver

Use Scenario: Switching 12V/24V solenoid loads in ECU output stages.

IC Role / Device Role / Timing Role: High-side PNP switch controlling ground-referenced inductive loads.

Use Value: Low V_CE(sat) reduces heat generation in space-constrained ECUs; +175°C rating avoids thermal shutdown during extended idle conditions.

Use Scenario: Driving brushed DC motors in factory automation actuators.

IC Role / Device Role / Timing Role: Supply-line switch enabling rapid enable/disable of motor power rails.

Use Value: Parallel base pins ensure fast turn-on; wettable flanks guarantee reliable solder joints under vibration and thermal cycling.

Smart Power Outlet

LED Driver Power Stage

Use Scenario: Overcurrent-protected AC/DC secondary-side load switching.

IC Role / Device Role / Timing Role: High-side switch isolating downstream circuitry during fault events.

Use Value: -40V V_CEO accommodates transient spikes in 24V PoE-powered outlets; R_θJL = 11°C/W simplifies thermal design in sealed enclosures.

Use Scenario: Constant-current LED string switching in architectural lighting controllers.

IC Role / Device Role / Timing Role: Precision current-source switch regulating LED brightness via PWM.

Use Value: Tight h_FE distribution (200–900) maintains consistent current regulation across production lots without trimming.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP high-side switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
DXTN22040DFG	Complementary NPN; identical PowerDI3333-8 package, same V_CEO/I_C, but requires inverted drive logic	Suitable only where low-side switching is acceptable or gate drive is referenced to ground	Select when layout permits emitter-grounded configuration and drive circuit supports NPN logic polarity
ZXTN2020ZTA	Lower V_CEO (-20V), smaller SOT89 package, R_θJA = 125°C/W - less thermal headroom	Limited to 12V systems; unsuitable for 24V+ or high-temperature environments	Choose only for cost-sensitive, low-power 12V applications with ample board copper for cooling

Compared with DXTN22040DFG and ZXTN2020ZTA, DXTP22040DFG-7 uniquely combines -40V rating, -2A current, and +175°C operation in a thermally optimized 3.3mm² package-making it the sole option for ruggedized 24V high-side switching where reliability under thermal stress is mandatory.

Availability

DXTP22040DFG-7 is available at Aetrix Electronics and suitable for automotive engine control units, industrial motor drivers, and smart power outlet designs requiring stable component supply and long-term lifecycle support.

Supply support for DXTP22040DFG-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.

This device belongs to Diodes' Power Transistor product line, engineered specifically for high-efficiency, high-temperature switching in automotive, industrial, and power management systems where thermal robustness and AOI-compatible packaging are critical.

FAQ

What is the maximum continuous collector current for DXTP22040DFG-7?

The maximum continuous collector current is -2A at T_A = +25°C with appropriate PCB copper area. Derating applies above +25°C ambient: full rating is maintained up to +125°C with 50mm × 50mm 2oz copper, per datasheet Note 7. At +175°C case temperature, the device supports pulsed operation only.

Does DXTP22040DFG-7 require a heatsink in typical applications?

No dedicated heatsink is required. With its R_θJL of 11°C/W and R_θJA of 44°C/W on 50mm × 50mm 2oz copper, the device dissipates up to 2.3W continuously without external heatsinking. Thermal performance relies on proper PCB copper area and solder coverage of the exposed collector tab.

How does the wettable flank feature benefit manufacturing?

The wettable flank geometry ensures molten solder wets vertically along the side of each lead during reflow, enabling automated optical inspection (AOI) systems to verify solder fillet formation and joint completeness-critical for zero-defect manufacturing in automotive and industrial electronics.

Can DXTP22040DFG-7 replace older TO-252 PNP transistors in existing designs?

Yes, with layout adaptation. Its PowerDI3333-8 footprint (3.3mm × 3.3mm) is smaller than TO-252 (6.5mm × 6.5mm), offering higher density. Electrical specs exceed most TO-252 equivalents: lower V_CE(sat), better thermal resistance, and +175°C rating. Pad layout and stencil design must follow Diodes' recommended land pattern.

DXTP22040DFG-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 8-PowerVDFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 2 A

Voltage - Collector Emitter Breakdown (Max):: 40 V

Vce Saturation (Max) @ Ib, Ic:: 600mV @ 300mA, 3A

Current - Collector Cutoff (Max):: 20nA

DC Current Gain (hFE) (Min) @ Ic, Vce:: 340 @ 100mA, 2V

Power - Max:: 1.07 W

Frequency - Transition:: 120MHz

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:: PowerDI3333-8 (SWP) Type UX

DXTP22040DFG-7 FAQ

1.How can I place an order for DXTP22040DFG-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for DXTP22040DFG-7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for DXTP22040DFG-7 reliable?

The price and inventory of DXTP22040DFG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DXTP22040DFG-7 is usually 5 days.

3.What payment methods are accepted for DXTP22040DFG-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DXTP22040DFG-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DXTP22040DFG-7?

DXTP22040DFG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DXTP22040DFG-7 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for DXTP22040DFG-7?

For technical support, including DXTP22040DFG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DXTP22040DFG-7 requirements.

6.How does Aetrix verify that DXTP22040DFG-7 is sourced from the original manufacturer or authorized distributors?

All DXTP22040DFG-7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DXTP22040DFG-7 meets industry standards.

7.What is the process for return or replacement of DXTP22040DFG-7?

All DXTP22040DFG-7 units undergo pre-shipment inspection (PSI). If there is an issue with DXTP22040DFG-7, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The DXTP22040DFG-7 part is unused and in its original packaging.

Return procedure for DXTP22040DFG-7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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