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Diodes Incorporated ZXTP5240F-7
- Part No.:
- ZXTP5240F-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ZXTP5240F-7.pdf
- Description:
- TRANS PNP 40V 2A SOT-23-3
- Quantity:
- Payment:
- Shipping:
Inventory:50,881
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Product details
Overview
ZXTP5240F-7 from Diodes Incorporated is a 40V PNP low-saturation transistor in SOT23 package, designed for high-current switching in power control circuits. It delivers -2A continuous collector current, -225mV max VCE(sat) at -1A, and 90mΩ RCE(sat) at -0.5A, enabling efficient gate driving of MOSFETs and IGBTs in DC-DC converters and battery charging systems.
For engineers reviewing the ZXTP5240F-7 datasheet, ZXTP5240F-7 pinout, ZXTP5240F-7 application, or ZXTP5240F-7 equivalent, key selection criteria include verified PNP saturation voltage under load, thermal resistance (RθJA = 171°C/W on 15mm × 15mm 1oz copper), safe operating area limits, and SOT23 lead finish compatibility with automated assembly.
Technical Context
This PNP bipolar junction transistor operates with a minimum BVCEO of -40V and supports pulsed collector currents up to -3A. Its hFE ranges from 100 at -2A to 300 at -0.1A, supporting both linear and saturated switching modes.
The device features low thermal resistance (RθJC = 40°C/W) and ESD robustness (4kV HBM), making it suitable for compact, thermally constrained industrial and automotive-qualified designs when paired with the ZXTP5240FQ variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -40V - Ensures reliable blocking in 24V and 36V system rails |
| IC (continuous) | -2A - Supports high-side load switching without external heat sinking |
| VCE(sat) | -225mV max @ -1A/–50mA - Minimizes conduction loss in power path |
| RCE(sat) | 90mΩ @ -0.5A - Enables accurate current-sense modeling in feedback loops |
| PD | 730mW - Validated on 15mm × 15mm 1oz copper PCB per JEDEC standards |
| fT | 100MHz - Supports fast switching in PWM frequencies up to ~10MHz |
| ESD HBM | 4,000V - Reduces handling sensitivity during SMT assembly |
Pinout & Package
Package: SOT23 - Surface-mount plastic package with matte tin-plated leads, UL 94V-0 rated, moisture sensitivity level 1, weight ≈ 0.008g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Current source terminal | Connected to positive rail in high-side switch configurations |
| 2 (Base) | Control input | Receives TTL- or CMOS-compatible drive; requires ≥–200mA peak for full saturation at –2A |
| 3 (Collector) | Current sink terminal | Routes switched load current to ground; soldered to thermal pad for enhanced dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(sat) | -225mV max at -1A ensures <125mW conduction loss in 12V load switches |
| High IC rating | -2A continuous enables direct drive of >10A MOSFET gates without buffer stages |
| Thermal performance | RθJA = 171°C/W allows operation up to +105°C ambient with minimal derating |
| Green compliance | Halogen- and antimony-free, RoHS 3 compliant - meets IPC-1752A reporting requirements |
Applications
| Gate Driving | Load Switching |
|---|---|
Use Scenario: Driving the gate of a 40V N-channel MOSFET in a synchronous buck converter. IC Role / Device Role / Timing Role: High-current PNP switch providing rapid turn-on current surge (>–500mA) to charge gate capacitance. Use Value: Low RCE(sat) (90mΩ) minimizes driver-stage power loss and improves efficiency by >0.4% at 5A output. | Use Scenario: Controlling power delivery to a 24V industrial sensor module. IC Role / Device Role / Timing Role: High-side PNP switch enabling ON/OFF control with reverse-polarity protection. Use Value: –40V VCEO withstands load-dump transients up to ISO 7637-2 Pulse 1 (–40V). |
| DC-DC Conversion | Battery Charging |
Use Scenario: Active clamping in an isolated flyback controller auxiliary supply. IC Role / Device Role / Timing Role: Fast-switching PNP clamp transistor absorbing leakage energy during MOSFET off-time. Use Value: 22ns rise time and 120ns storage time enable clean clamping at 500kHz switching frequency. | Use Scenario: Enabling/disabling charging current to a 3S Li-ion pack from a 12V adapter. IC Role / Device Role / Timing Role: Series pass element in constant-current regulation loop with base-driven feedback. Use Value: Stable hFE (210 @ –1A) supports precise current mirroring accuracy within ±3% over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP low-saturation transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTP5240FQ-7 | Automotive-grade AEC-Q101 qualified; identical electrical specs but tighter parametric screening and extended temp range (–40°C to +150°C) | Required for automotive body electronics and ADAS power modules | Select when functional safety (ISO 26262) or extended temperature operation is mandated |
| MMBT5240-7-F | Same SOT23 package but lower IC (–1.5A), higher VCE(sat) (–300mV @ –1A), and no RCE(sat) spec | Suitable only for <1A loads where thermal margin is less critical | Choose for cost-sensitive consumer applications with relaxed current and efficiency targets |
Compared with ZXTP5240FQ-7, the ZXTP5240F-7 offers identical performance at lower qualification cost; versus MMBT5240-7-F, it delivers 33% higher current capability and 25% lower saturation voltage-critical for thermally dense DC-DC layouts.
Availability
ZXTP5240F-7 is available at Aetrix Electronics and suitable for gate driving MOSFETs and IGBTs, load switching in industrial controls, and battery charging circuits requiring stable component supply and consistent SOT23 lead finish.
Supply support for ZXTP5240F-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 centers across Asia and manufacturing in China, Malaysia, and Taiwan.
The ZXTP5240F belongs to Diodes' high-performance bipolar transistor product line, engineered specifically for power switching applications demanding low saturation voltage, high current density, and robust thermal behavior in space-constrained SMT designs.
FAQ
What is the maximum allowable base current for ZXTP5240F-7?
The absolute maximum base current is –300mA per datasheet Absolute Maximum Ratings. For reliable saturation at –2A collector current, a minimum of –200mA base drive is required, with recommended layout including short, wide traces to minimize inductance and prevent oscillation during switching transitions.
Can ZXTP5240F-7 be used in linear regulator applications?
Yes-it supports linear operation with hFE of 210 at –1A and –2V VCE, but power dissipation must be limited to ≤600mW under minimum pad layout conditions. Thermal derating above +75°C ambient is required; use with heatsinked copper pour for >500mW steady-state loads.
Is the SOT23 package of ZXTP5240F-7 compatible with standard pick-and-place equipment?
Yes-the device uses standard SOT23 footprint with 0.915mm typical lead pitch and matte tin-plated leads conforming to MIL-STD-202 Method 208. Tape-and-reel packaging (3,000 units per 8mm tape, 7-inch reel) complies with EIA-481-D for automated assembly.
Does ZXTP5240F-7 have a specified avalanche rating?
No-datasheet does not specify avalanche energy (EAS) or ruggedness testing. The device is rated for safe operating area (SOA) up to –40V/–2A DC and –30V/–3A pulsed, but should not be operated outside SOA boundaries without external clamping or snubbing networks.
ZXTP5240F-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- 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:
- 350mV @ 200mA, 2A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 300 @ 100mA, 2V
- Power - Max:
- 730 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ZXTP5240F-7 FAQ
1.How can I place an order for ZXTP5240F-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXTP5240F-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 ZXTP5240F-7 reliable?
The price and inventory of ZXTP5240F-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXTP5240F-7 is usually 5 days.
3.What payment methods are accepted for ZXTP5240F-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXTP5240F-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXTP5240F-7?
ZXTP5240F-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXTP5240F-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 ZXTP5240F-7?
For technical support, including ZXTP5240F-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXTP5240F-7 requirements.
6.How does Aetrix verify that ZXTP5240F-7 is sourced from the original manufacturer or authorized distributors?
All ZXTP5240F-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 ZXTP5240F-7 meets industry standards.
7.What is the process for return or replacement of ZXTP5240F-7?
All ZXTP5240F-7 units undergo pre-shipment inspection (PSI). If there is an issue with ZXTP5240F-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 ZXTP5240F-7 part is unused and in its original packaging.
Return procedure for ZXTP5240F-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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