Diodes Incorporated DXTP22040CFG-7
- Part No.:
- DXTP22040CFG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- 8-PowerVDFN
- Datasheet:
-
DXTP22040CFG-7.pdf
- Description:
- TRANS PNP 40V 2A POWERDI3
- Quantity:
- Payment:

- Shipping:

Inventory:1,980
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Product details
Overview
DXTP22040CFG-7 from Diodes Incorporated is a 40V PNP low VCE(sat) transistor in PowerDI3333-8 package, designed for high-side switching with -2A continuous collector current, -225mV saturation voltage at -1A, and operation up to +175°C. It serves in supply line switching and motor driving where thermally efficient, compact, and high-temperature stable discrete switching is required.
For engineers reviewing the DXTP22040CFG-7 datasheet, DXTP22040CFG-7 pinout, DXTP22040CFG-7 application, or DXTP22040CFG-7 equivalent, key selection criteria include VCE(sat) performance at high IC, thermal resistance (RθJL = 11°C/W), wettable flank inspection capability, and complementary NPN pairing with DXTN22040CFG.
Technical Context
This PNP bipolar junction transistor features a robust BVCEO of -40V and supports pulsed peak currents up to -3A. Its low RCE(sat) of 225 mΩ at -1A enables efficient power switching in space-constrained industrial and automotive environments.
The PowerDI3333-8 package integrates a thermally optimized collector tab with wettable flanks for automated optical inspection. Rated for -55°C to +175°C operation, it delivers stable hFE (min 200 at -100mA) and fast switching (tstorage = 524 ns, tfall = 69.4 ns) under pulsed test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -40 V - Maximum safe collector-emitter blocking voltage in open-base configuration |
| IC (continuous) | -2 A - Sustained current-handling capacity without thermal derating on 50 mm × 50 mm 2 oz copper |
| VCE(sat) | < -225 mV @ -1A / -100 mA - Enables <0.225 W conduction loss per switch at rated load |
| RθJL | 11 °C/W - Low junction-to-leads thermal resistance via exposed collector tab for direct PCB heat sinking |
| hFE | 200 min @ -100 mA - Ensures reliable base drive margin for saturated switching at moderate loads |
| fT | 120 MHz - Supports high-speed switching applications including PWM motor control up to ~10 MHz effective bandwidth |
| ESD HBM | 4,000 V - Robust handling during board assembly and handling without additional protection circuitry |
Pinout & Package
Package: PowerDI®3333-8 (SWP, Type UX), surface-mount, thermally enhanced with exposed collector tab and wettable flank leads. Dimensions: 3.30 mm × 3.30 mm × 0.80 mm (L × W × H), weight ≈ 0.03 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Top View) | Emitter (E) | Primary current sink terminal; connected to load return path in high-side switch topology |
| Pin 2 (Top View) | Base (B) | Control input; requires -100 mA base drive for full saturation at -2 A collector current |
| Pins 3–8 (Top View) | Collector (C) | Common collector connection across six terminals; electrically tied to exposed metal tab for thermal and electrical conduction |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(sat) | < -225 mV at -1A ensures minimal conduction loss and reduced self-heating in high-duty-cycle switching |
| Thermal performance | RθJL = 11°C/W enables direct heat transfer from junction to PCB copper, supporting >2W dissipation with proper layout |
| High-temperature rating | Operates continuously from -55°C to +175°C - suitable for under-hood automotive and industrial motor control enclosures |
| Wettable flank leads | Matte tin-plated side-walls allow automated optical inspection (AOI) of solder joint integrity without X-ray |
| Complementary pairing | DXTN22040CFG NPN variant shares identical package, ratings, and thermal behavior for balanced half-bridge designs |
Applications
| High-Side Switch | Supply Line Switching |
|---|---|
Use Scenario: Controlling power delivery to a 12V/24V subsystem (e.g., sensor cluster or actuator module) from a microcontroller GPIO. IC Role / Device Role / Timing Role: PNP transistor operating in saturation as a high-side load switch, driven by inverted logic signal. Use Value: Low VCE(sat) minimizes voltage drop and power loss; wettable flanks ensure reliable solder joint inspection in automated manufacturing. | Use Scenario: Enabling/disabling main power rail to an embedded controller during sleep/wake transitions. IC Role / Device Role / Timing Role: Discrete PNP switch placed between battery and regulator input, controlled via enable signal. Use Value: -40V VCEO provides margin against load-dump transients; +175°C rating supports operation near hot components like DC-DC converters. |
| Motor Driving | Industrial Actuator Control |
Use Scenario: Driving small brushed DC motors (e.g., HVAC damper actuators) in 24V systems requiring bidirectional control via H-bridge. IC Role / Device Role / Timing Role: High-side switch in one leg of discrete H-bridge, paired with NPN low-side counterpart. Use Value: Fast storage time (524 ns) and fall time (69.4 ns) support PWM frequencies up to 100 kHz with minimal dead-time overhead. | Use Scenario: Controlling solenoid valves or relays in programmable logic controller (PLC) output modules. IC Role / Device Role / Timing Role: Final-stage PNP switch delivering up to -2A to inductive loads with flyback protection. Use Value: -3A peak pulse rating accommodates inrush current; RθJL = 11°C/W allows sustained operation without heatsink in sealed enclosures. |
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 |
|---|---|---|---|
| ZXTN25040DFH | Higher VCEO (-50V), lower IC (-1.5A), SOT-23 package (no thermal tab) | Limited to lower-power, non-thermally demanding applications due to higher RθJA (200°C/W) | Select when board space is critical and power dissipation ≤0.5W; not suitable for continuous 2A loads. |
| MMDT3906-7-F | SOT-363 package, -200mA IC, VCE(sat) = -300mV @ -50mA - significantly lower current and higher saturation loss | Only appropriate for signal-level switching, not power switching | Use only for logic-level translation or low-current bias networks; cannot replace DXTP22040CFG-7 in load-switching roles. |
Compared with ZXTN25040DFH and MMDT3906-7-F, DXTP22040CFG-7 uniquely combines -2A continuous current, ultra-low VCE(sat), and PowerDI3333-8 thermal performance - making it the only option among the three viable for industrial-grade high-side power switching above 1W.
Availability
DXTP22040CFG-7 is available at Aetrix Electronics and suitable for high-side switch design, motor driving circuits, and supply line switching applications requiring stable component supply, long-term lifecycle assurance, and consistent thermal performance across temperature extremes.
Supply support for DXTP22040CFG-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, marketing, and logistics operations across Asia, Europe, and the Americas.
This device belongs to Diodes' Power Transistor product line, engineered specifically for high-efficiency, high-reliability discrete switching in automotive, industrial, and computing power management systems.
FAQ
What is the maximum continuous collector current for DXTP22040CFG-7?
The maximum continuous collector current is -2 A at TA = +25°C with the device mounted on a 50 mm × 50 mm 2 oz copper PCB. Derating applies above +25°C ambient: linear reduction begins at ~+70°C, reaching zero at +175°C per absolute maximum ratings table.
Does DXTP22040CFG-7 require a heatsink in typical applications?
No external heatsink is required if PCB layout provides ≥50 mm × 50 mm of 2 oz copper connected to the collector tab. With that, the device dissipates up to 3.4 W (RθJA = 44°C/W). For 2 A conduction at VCE(sat) ≈ -225 mV, power dissipation is ~450 mW - well within safe limits without added thermal mass.
How does the wettable flank feature improve manufacturing yield?
The wettable flank design exposes matte tin-plated sidewalls on all eight leads, enabling automated optical inspection (AOI) systems to verify solder fillet formation and joint completeness without X-ray. This reduces false call rates and eliminates manual rework for hidden solder joints common in dense PowerDI packages.
Is DXTP22040CFG-7 pin-compatible with its NPN complement DXTN22040CFG?
Yes - both devices share identical PowerDI3333-8 (SWP, Type UX) mechanical outline, pad layout, and pin assignment (Emitter/Base/Collector mapping). This allows identical PCB footprints for complementary high-side/low-side pairs in half-bridge or push-pull configurations, simplifying layout and inventory management.
DXTP22040CFG-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:
- 200 @ 500mA, 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
DXTP22040CFG-7 FAQ
1.How can I place an order for DXTP22040CFG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DXTP22040CFG-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 DXTP22040CFG-7 reliable?
The price and inventory of DXTP22040CFG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DXTP22040CFG-7 is usually 5 days.
3.What payment methods are accepted for DXTP22040CFG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DXTP22040CFG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DXTP22040CFG-7?
DXTP22040CFG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DXTP22040CFG-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 DXTP22040CFG-7?
For technical support, including DXTP22040CFG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DXTP22040CFG-7 requirements.
6.How does Aetrix verify that DXTP22040CFG-7 is sourced from the original manufacturer or authorized distributors?
All DXTP22040CFG-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 DXTP22040CFG-7 meets industry standards.
7.What is the process for return or replacement of DXTP22040CFG-7?
All DXTP22040CFG-7 units undergo pre-shipment inspection (PSI). If there is an issue with DXTP22040CFG-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 DXTP22040CFG-7 part is unused and in its original packaging.
Return procedure for DXTP22040CFG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DXTP22040CFG-7 Tags

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MMBT3906LT1G
onsemi

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MMBT3904-7-F
Diodes Incorporated

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Diodes Incorporated

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MMBT3904-TP
Micro Commercial Co

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MMBT2222A-7-F
Diodes Incorporated

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BC846BLT1G
onsemi

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BC847B,215
Nexperia USA Inc.

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SMMBT3904LT1G
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MMBT2222A-TP
Micro Commercial Co

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MMBTA06LT1G
onsemi

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MMBT2222ALT1G
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