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Diodes Incorporated ZXTP25040DFLTA
- Part No.:
- ZXTP25040DFLTA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ZXTP25040DFLTA.pdf
- Description:
- TRANS PNP 40V 1.5A SOT-23-3
- Quantity:
- Payment:
- Shipping:
Inventory:42,683
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Product details
Overview
ZXTP25040DFLTA from Diodes Incorporated is a 40V PNP low-power bipolar junction transistor in SOT23 package, rated for -1.5A continuous collector current, -40V VCEO, and VCE(sat) < -115mV at -1A. It delivers 82mΩ RCE(sat), supports high peak pulse current (-5A), and is AEC-Q101 qualified for automotive gate driving and DC-DC converter applications.
For engineers reviewing the ZXTP25040DFLTA datasheet, ZXTP25040DFLTA pinout, ZXTP25040DFLTA application, or ZXTP25040DFLTA equivalent, key selection criteria include guaranteed VCE(sat) performance at high IC, thermal resistance (RθJA = 403°C/W on minimal pad layout), and complementary pairing with ZXTN25040D for push-pull configurations.
Technical Context
This PNP transistor operates in linear or saturated switching mode with hFE ranging from 15 to 900 depending on IC (15 @ -3A, 450 typ @ -10mA). Its safe operating area (SOA) is defined up to -40V and -5A with pulse width-dependent derating, and it features fT = 270MHz for moderate-frequency switching.
Thermal design relies on its SOT23 package's RθJL = 350°C/W (junction-to-leads) and JEDEC Level 1 moisture sensitivity. ESD robustness includes 4kV HBM and 400V MM ratings, supporting automated assembly in industrial and automotive production lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -40V - Ensures reliable blocking in 24V automotive and industrial DC-DC primary-side circuits. |
| IC (cont.) | -1.5A - Supports sustained gate drive for MOSFETs/IGBTs up to ~30A power devices with margin. |
| VCE(sat) | < -115mV @ -1A, -100mA - Minimizes conduction loss and self-heating during saturation. |
| hFE | 120–900 - Enables flexible base drive design across load currents from mA to 1.5A. |
| fT | 270MHz - Permits use in PWM frequencies up to ~10MHz with adequate gain margin. |
| RθJA | 403°C/W - Requires careful PCB copper area management for >200mW power dissipation. |
| ESD HBM | 4,000V - Reduces handling-related failure risk in manufacturing and field service. |
Pinout & Package
Package: SOT23 - Molded plastic case, matte tin-plated leads, 0.008g weight, UL 94V-0 flammability rating, JEDEC Level 1 moisture sensitivity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| E (Emitter) | Current source terminal | Connected to positive rail in high-side switch configuration; defines reference for VEB biasing. |
| B (Base) | Control input | Receives negative current to turn on; requires ≥ -75mA for full saturation at -1.5A IC. |
| C (Collector) | Current sink terminal | Drives load to ground; voltage swing limited to -40V max under forward-blocking conditions. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive gate drivers and engine control modules requiring reliability over temperature cycling and vibration. |
| Low VCE(sat) at high IC | –115mV @ –1A ensures <115mW conduction loss, reducing thermal stress in compact DC-DC layouts. |
| Complementary pairing | Matched with ZXTN25040D (NPN) for symmetrical push-pull output stages without external bias network redesign. |
| Green construction | Halogen- and antimony-free, RoHS-compliant molding compound (<900ppm Br/Cl, <1500ppm total halogens). |
Applications
| Automotive Gate Driving | Isolated DC-DC Converters |
|---|---|
Use Scenario: Driving gates of N-channel MOSFETs in 12V/24V automotive body control modules. IC Role / Device Role / Timing Role: High-side PNP switch providing fast turn-on and low-loss pull-up during active gate charge phase. Use Value: VCE(sat) < –115mV at –1A reduces gate drive power loss by >30% vs. standard PNP alternatives. |
Use Scenario: Secondary-side synchronous rectification in isolated flyback converters for infotainment power supplies. IC Role / Device Role / Timing Role: Low-VCE(sat) PNP switch replacing Schottky diodes to improve efficiency at light loads. Use Value: 82mΩ RCE(sat) enables >2% efficiency gain at 500mA output versus 0.4V-drop diode solution. |
| Industrial Motor Control | Power Supply Sequencing |
Use Scenario: Enabling/disabling auxiliary power rails in servo drive logic boards. IC Role / Device Role / Timing Role: Low-leakage (ICBO < –1nA @ –36V) PNP switch for precise rail enable control. Use Value: BVECO = –3V allows safe reverse-bias operation during multi-rail sequencing transients. |
Use Scenario: Controlling power-up sequence of FPGA I/O banks and core voltage domains. IC Role / Device Role / Timing Role: Fast-switching (tr/tf < 100ns) PNP element in discrete OR-ing and sequencing logic. Use Value: 270MHz fT supports clean edge transitions in sub-microsecond timing windows. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTP2012ZTA | VCEO = –20V, IC = –1A, VCE(sat) = –120mV @ –0.5A - lower voltage rating and reduced current capability. | Suitable only for ≤12V systems; not recommended for 24V automotive gate drive due to insufficient VCEO margin. | Select when board space is constrained and voltage stress remains below 15V; verify SOA under pulsed loads. |
| MMDT3906-7-F | VCEO = –40V, IC = –0.2A, VCE(sat) = –300mV @ –0.05A - significantly higher saturation voltage and lower current rating. | Limited to signal-level switching; cannot replace ZXTP25040DFLTA in power gate drive or DC-DC rectification roles. | Use only for logic-level inversion or low-current bias networks where power loss is non-critical. |
Compared with ZXTP25040DFLTA, ZXTP2012ZTA trades voltage headroom for smaller footprint, while MMDT3906-7-F sacrifices conduction efficiency for cost-sensitive signal applications-neither matches its combination of -40V rating, -1.5A capacity, and sub-120mV VCE(sat).
Availability
ZXTP25040DFLTA is available at Aetrix Electronics and suitable for automotive gate driving, isolated DC-DC converters, and industrial motor control applications requiring stable component supply and AEC-Q101 compliance.
Supply support for ZXTP25040DFLTA 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, specializing in high-reliability components for automotive, industrial, and computing markets.
ZXTP25040DFLTA belongs to Diodes' AEC-Q101-qualified PNP transistor product line, engineered for high-efficiency, thermally robust switching in power management and gate driver circuits.
FAQ
What is the maximum allowable continuous collector current for ZXTP25040DFLTA?
The ZXTP25040DFLTA is rated for –1.5A continuous collector current at TA = +25°C on a minimum recommended 1oz FR4 PCB pad layout. Derating applies above +25°C ambient per the published thermal resistance (RθJA = 403°C/W) and safe operating area curves.
Can ZXTP25040DFLTA be used in parallel configurations?
No-this PNP transistor lacks built-in emitter ballasting or matched hFE binning, making current sharing unreliable. Parallel operation risks thermal runaway due to VBE mismatch and negative temperature coefficient of VCE(sat). Use a single device sized for the full load or select a higher-current alternative.
Does ZXTP25040DFLTA support lead-free reflow soldering?
Yes-ZXTP25040DFLTA has matte tin-plated leads compliant with IPC/JEDEC J-STD-020 moisture sensitivity Level 1 and withstands standard lead-free reflow profiles (peak 260°C). Its SOT23 package is qualified for both wave and reflow processes per Diodes' AP02002 specification.
How does the VCE(sat) vary with temperature and current?
VCE(sat) increases with temperature and collector current: typical values are –95mV @ –1A/25°C, –115mV @ –1A/100°C, and –160mV @ –1.5A/25°C. This behavior is documented in Figure 4 of DS33754 Rev. 4 and must be accounted for in thermal design margins.
ZXTP25040DFLTA 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):
- 1.5 A
- Voltage - Collector Emitter Breakdown (Max):
- 40 V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 300mA, 3A
- Current - Collector Cutoff (Max):
- 50nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 300 @ 10mA, 2V
- Power - Max:
- 350 mW
- Frequency - Transition:
- 270MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ZXTP25040DFLTA FAQ
1.How can I place an order for ZXTP25040DFLTA through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXTP25040DFLTA 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 ZXTP25040DFLTA reliable?
The price and inventory of ZXTP25040DFLTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXTP25040DFLTA is usually 5 days.
3.What payment methods are accepted for ZXTP25040DFLTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXTP25040DFLTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXTP25040DFLTA?
ZXTP25040DFLTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXTP25040DFLTA 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 ZXTP25040DFLTA?
For technical support, including ZXTP25040DFLTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXTP25040DFLTA requirements.
6.How does Aetrix verify that ZXTP25040DFLTA is sourced from the original manufacturer or authorized distributors?
All ZXTP25040DFLTA 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 ZXTP25040DFLTA meets industry standards.
7.What is the process for return or replacement of ZXTP25040DFLTA?
All ZXTP25040DFLTA units undergo pre-shipment inspection (PSI). If there is an issue with ZXTP25040DFLTA, 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 ZXTP25040DFLTA part is unused and in its original packaging.
Return procedure for ZXTP25040DFLTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ZXTP25040DFLTA Tags
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