Diodes Incorporated ZXTN19020CFFTA
- Part No.:
- ZXTN19020CFFTA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- SOT-23-3 Flat Leads
- Datasheet:
-
ZXTN19020CFFTA.pdf
- Description:
- TRANS NPN 20V 7A SOT-23F
- Quantity:
- Payment:

- Shipping:

Inventory:8,096
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Product details
Overview
ZXTN19020CFFTA from Diodes Incorporated is a 20V NPN high-gain power transistor in SOT23F package, rated for 7A continuous collector current, 1.5W power dissipation, and ultra-low 18mΩ RCE(SAT). It delivers VCE(SAT) < 30mV at 1A and supports MOSFET/IGBT gate driving, LED strobe flash, and motor drive applications requiring high current density and thermal efficiency.
For engineers reviewing the ZXTN19020CFFTA datasheet, ZXTN19020CFFTA pinout, ZXTN19020CFFTA application, or ZXTN19020CFFTA equivalent, key selection criteria include its AEC-Q101 qualification, 65V BVCEX forward blocking capability, low-profile SOT23F thermal performance, and complementary PNP pairing with ZXTP19020CFF.
Technical Context
This NPN bipolar junction transistor uses advanced process technology to achieve high gain (hFE = 350 min @ IC = 0.1A) and low saturation voltage across wide current range (IC = 0.1A to 7A). Its 65V BVCEX rating enables robust forward-blocking operation under transient overvoltage conditions typical in gate-drive and motor-control circuits.
The SOT23F package integrates an exposed collector pad for enhanced thermal conduction, achieving RθJL = 43.8°C/W and enabling 1.5W dissipation on 50mm × 50mm 2oz copper PCBs. ESD robustness (4kV HBM) and -55°C to +150°C operating range support automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 20V - Maximum safe collector-emitter voltage with base open; defines primary DC blocking limit in switching applications. |
| VCEX | 65V - Forward-blocking voltage with base-emitter shorted; enables reliable operation during inductive flyback events. |
| IC (continuous) | 7A - Continuous current handling capacity; supports high-current buffer stages without external heatsinking in compact layouts. |
| VCE(SAT) @ 1A | <30mV - Ultra-low saturation voltage reduces conduction loss and self-heating in high-duty-cycle switching. |
| RCE(SAT) | 18mΩ - Effective on-resistance derived from VCE(SAT)/IC; critical for calculating I²R losses in power stage design. |
| fT | 150MHz - Transition frequency confirms suitability for medium-speed switching (e.g., PWM up to ~1–2 MHz) with stable gain. |
| PD (max) | 1.5W - Maximum steady-state power dissipation on optimized 50mm×50mm 2oz Cu PCB; sets thermal layout requirements. |
Pinout & Package
The ZXTN19020CFFTA is housed in a surface-mount SOT23F package with exposed collector pad for thermal enhancement. Dimensions comply with JEDEC MO-203AA, featuring 0.95mm height, 2.90mm length, and 2.40mm width.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Emitter terminal | Current return path; connected to ground or low-side reference; requires low-inductance routing for fast switching. |
| 2 (Base) | Control input | Drives transistor into saturation or cutoff; requires current-limited drive (IB ≤ 1A) to avoid damage. |
| 3 (Collector) | Power output node | High-current output terminal; electrically and thermally connected to exposed pad for heat transfer to PCB. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per JESD22 standards. |
| Ultra-low RCE(SAT) | 18mΩ enables <100mW conduction loss at 7A, reducing thermal load and simplifying thermal management in space-constrained designs. |
| SOT23F thermal enhancement | Exposed collector pad lowers RθJL to 43.8°C/W, allowing 1.5W dissipation-30% higher than standard SOT23 at same footprint. |
| High hFE at high current | hFE ≥ 95 @ IC = 7A ensures stable current gain under full-load conditions, minimizing required base drive power. |
| Green, lead-free construction | Halogen- and antimony-free molding compound (<900ppm Br+Cl, <1000ppm Sb) meets automotive and industrial environmental compliance mandates. |
Applications
| Motor Drive | LED Strobe Flash |
|---|---|
Use Scenario: Driving brushed DC motors in automotive HVAC actuators and industrial positioning systems. IC Role / Device Role / Timing Role: High-current NPN switch controlling motor winding current with fast turn-on/turn-off. Use Value: Low VCE(SAT) minimizes power loss during PWM conduction, while 65V BVCEX withstands inductive kickback without snubbers. |
Use Scenario: High-intensity camera flash circuits requiring sub-millisecond current pulses up to 7A. IC Role / Device Role / Timing Role: Primary current switch enabling precise pulse-width control of LED current. Use Value: 15A peak pulse rating and 285ns storage time support sharp flash rise/fall edges with minimal tail current. |
| MOSFET/IGBT Gate Driver | Micro Buffer Amplifier |
Use Scenario: Level-shifting and current-boosting stage for driving high-capacitance power device gates. IC Role / Device Role / Timing Role: Low-impedance emitter-follower buffer amplifying logic-level signals to deliver >100mA peak gate current. Use Value: High hFE and fast switching (tR = 117ns, tF = 88ns) reduce gate charge time and improve power device switching efficiency. |
Use Scenario: Signal conditioning and current gain in sensor interface and analog front-end circuits. IC Role / Device Role / Timing Role: Linear-mode amplifier providing stable current gain with minimal distortion at low signal levels. Use Value: hFE = 350 min @ 0.1A ensures predictable small-signal amplification, while low CIBO = 315pF preserves bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMT3006LPSQ-13 | 60V VDS, 6.5A MOSFET in SOT23-3; gate-driven, zero gate current, but higher RDS(on) (25mΩ) and no bipolar gain. | Better for logic-level gate drive where zero input current is critical; unsuitable for linear amplification or base-driven topologies. | Select when replacing BJT with MOSFET topology is acceptable and gate drive simplicity outweighs need for current gain. |
| ZXTP2002ZTA | Complementary PNP in same SOT23F package; VECO = 20V, IC = –7A, REC(SAT) = 22mΩ; matched thermal and footprint characteristics. | Required for push-pull or H-bridge configurations where symmetrical sourcing/sinking is needed. | Choose for complementary pair design; identical mounting, thermal profile, and AEC-Q101 qualification ensure system-level consistency. |
Compared with DMT3006LPSQ-13 and ZXTP2002ZTA, ZXTN19020CFFTA provides superior current gain and lower saturation voltage in BJT-based gate drivers and analog buffers, while ZXTP2002ZTA offers true complementary behavior for bidirectional current control.
Availability
ZXTN19020CFFTA is available at Aetrix Electronics and suitable for motor drive, LED strobe flash, and MOSFET gate-driving applications requiring stable component supply, AEC-Q101 qualification, and high-power-density discrete transistors in SOT23F format.
Supply support for ZXTN19020CFFTA 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 consumer markets with ISO/TS 16949 and AEC-Q200 certified processes.
ZXTN19020CFFTA belongs to Diodes' high-gain power transistor product line, engineered for high-current switching and amplification in thermally constrained automotive and industrial modules where SOT23 footprint compatibility and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum continuous collector current for ZXTN19020CFFTA?
The ZXTN19020CFFTA is rated for 7A continuous collector current at TA = +25°C with proper PCB thermal management (50mm × 50mm 2oz copper). Derating applies above +25°C ambient, with RθJA = 60°C/W under those conditions. Peak pulse current reaches 15A for short durations.
Is ZXTN19020CFFTA suitable for automotive applications?
Yes - ZXTN19020CFFTA is fully qualified to AEC-Q101 standards, including stress testing for temperature cycling, high-temperature reverse bias, and human-body-model ESD (4kV). Its -55°C to +150°C operating range and green, lead-free construction meet automotive electronics requirements.
How does the SOT23F package differ from standard SOT23?
The SOT23F package maintains the same PCB footprint as industry-standard SOT23 but features an exposed collector pad on the bottom surface for direct thermal conduction to the PCB. This reduces RθJL to 43.8°C/W and increases maximum power dissipation to 1.5W - significantly exceeding standard SOT23 limits.
What is the recommended base drive for 7A collector current?
To achieve 7A collector current with guaranteed saturation, the datasheet specifies IB = 280mA (IC/IB = 25). Base-emitter saturation voltage is 960mV typical at this condition. A current-limited driver capable of delivering ≥280mA with <1V drop is required; resistor-based drive must account for VBE(ON) ≈ 0.84V at 7A.
ZXTN19020CFFTA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-23-3 Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 7 A
- Voltage - Collector Emitter Breakdown (Max):
- 20 V
- Vce Saturation (Max) @ Ib, Ic:
- 175mV @ 280mA, 7A
- Current - Collector Cutoff (Max):
- 50nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 100mA, 2V
- Power - Max:
- 1.5 W
- Frequency - Transition:
- 150MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23F
ZXTN19020CFFTA FAQ
1.How can I place an order for ZXTN19020CFFTA through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXTN19020CFFTA 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 ZXTN19020CFFTA reliable?
The price and inventory of ZXTN19020CFFTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXTN19020CFFTA is usually 5 days.
3.What payment methods are accepted for ZXTN19020CFFTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXTN19020CFFTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXTN19020CFFTA?
ZXTN19020CFFTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXTN19020CFFTA 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 ZXTN19020CFFTA?
For technical support, including ZXTN19020CFFTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXTN19020CFFTA requirements.
6.How does Aetrix verify that ZXTN19020CFFTA is sourced from the original manufacturer or authorized distributors?
All ZXTN19020CFFTA 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 ZXTN19020CFFTA meets industry standards.
7.What is the process for return or replacement of ZXTN19020CFFTA?
All ZXTN19020CFFTA units undergo pre-shipment inspection (PSI). If there is an issue with ZXTN19020CFFTA, 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 ZXTN19020CFFTA part is unused and in its original packaging.
Return procedure for ZXTN19020CFFTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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