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Diodes Incorporated ZXTP19020DZTA
- Part No.:
- ZXTP19020DZTA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
ZXTP19020DZTA.pdf
- Description:
- TRANS PNP 20V 6A SOT-89-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,387
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Product details
Overview
ZXTP19020DZTA from Diodes Incorporated is a 20V PNP high-gain bipolar junction transistor in SOT89 package, rated for -6A continuous collector current, with VCE(sat) < -47mV at -1A and RCE(sat) = 28mΩ. It operates across -55°C to +150°C and is AEC-Q101 qualified for automotive-grade reliability. Its primary circuit role is high-side power switching in battery management and motor drive systems.
For engineers reviewing the ZXTP19020DZTA datasheet, ZXTP19020DZTA pinout, ZXTP19020DZTA application, or ZXTP19020DZTA equivalent, key selection criteria include verified saturation voltage at high current, thermal resistance (RθJA = 51°C/W on 50mm×50mm 2oz Cu PCB), complementary pairing with ZXTN19020DZ, and AEC-Q101 qualification for automotive power control designs.
Technical Context
This PNP transistor delivers high DC current gain (hFE = 65–110 at -6A, VCE = -2V) and low saturation resistance optimized for efficient high-side switching. Its safe operating area supports pulsed currents up to -15A with defined transient thermal impedance curves.
The device uses a planar epitaxial structure with matte tin-plated terminals and is qualified per AEC-Q101 Rev D for automotive underhood applications. Thermal performance is specified across multiple PCB mounting conditions, with RθJL = 4.69°C/W confirming effective heat transfer from junction to collector tab.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -20V - Maximum reverse-biased collector-emitter voltage before breakdown; defines upper limit for high-side switch blocking capability. |
| IC (continuous) | -6A - Sustained load current handling without derating; enables direct drive of medium-power loads like BLDC gate drivers or charger FETs. |
| VCE(sat) | < -47mV @ -1A, -100mA - Low conduction loss ensures minimal power dissipation and thermal rise during active switching. |
| RCE(sat) | 28mΩ - Effective on-resistance derived from VCE(sat)/IC; critical for calculating I²R losses in high-current paths. |
| PD | 2.4W @ 25°C on 50mm×50mm 2oz Cu PCB - Absolute maximum steady-state power dissipation under defined thermal conditions. |
| hFE | 65–110 @ -6A, -2V - Confirmed DC current gain range at full rated current; determines required base drive strength. |
| fT | 176MHz - Transition frequency indicating usable bandwidth for moderate-speed switching (e.g., PWM up to ~1–2 MHz). |
Pinout & Package
Package: SOT89 - Surface-mount plastic package with exposed collector tab for thermal conduction; dimensions: 4.40–4.60mm (D) × 2.29–2.60mm (E) × 1.40–1.60mm (A); weight ≈ 0.052g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Emitter terminal | Current sink node; connects to system ground or low-side return path in high-side switch configuration. |
| 2 (Base) | Control input | Receives negative base current to turn on; requires driver capable of sinking ≥300mA for full -6A conduction. |
| 3 (Collector) | Power output / heat sink | Connects to load supply rail; electrically and thermally tied to exposed metal tab for PCB copper pour attachment. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood use (-40°C to +125°C ambient, 150°C junction), including temperature cycling and HTRB testing. |
| Low RCE(sat) | 28mΩ enables ≤360mW conduction loss at -6A, reducing heatsink requirements in space-constrained modules. |
| High current gain at full load | hFE ≥65 at -6A ensures stable biasing without excessive base drive power or complex current-source drivers. |
| Exposed collector tab | Thermal resistance to leads RθJL = 4.69°C/W allows direct thermal coupling to PCB copper, improving power handling by >4× vs. standard SOT89. |
Applications
| Power Disconnect Switch | Battery Charger Control |
|---|---|
Use Scenario: Isolating main battery from downstream loads during fault or sleep mode in 12V/24V automotive systems. IC Role / Device Role / Timing Role: High-side PNP switch controlling power rail integrity; activated by microcontroller GPIO via base resistor network. Use Value: VCEO = -20V and AEC-Q101 rating ensure reliable operation in noisy vehicle electrical environments with load dump transients. |
Use Scenario: Enabling/disabling charging current path between AC-DC adapter and Li-ion battery pack in portable medical chargers. IC Role / Device Role / Timing Role: Precision-controlled current source switch regulating charge termination and safety cutoff. Use Value: Tight VCE(sat) tolerance (< -47mV) minimizes voltage drop across switch, preserving charger regulation accuracy and thermal margin. |
| High-Side Motor Driver | BLDC Gate Drive Stage |
Use Scenario: Driving gate of N-channel high-side MOSFET in brushed DC motor H-bridge using bootstrap or isolated supply. IC Role / Device Role / Timing Role: Level-shifting current amplifier translating logic-level signals to sufficient gate drive current. Use Value: fT = 176MHz supports fast turn-on/turn-off transitions, enabling PWM frequencies up to 2MHz without significant delay accumulation. |
Use Scenario: Providing gate drive current boost for three-phase BLDC inverter half-bridges in e-bike controllers. IC Role / Device Role / Timing Role: Complementary PNP stage paired with ZXTN19020DZ to form push-pull gate driver output stage. Use Value: Matched hFE and VCE(sat) characteristics with ZXTN19020DZ ensure symmetrical rise/fall times and reduced shoot-through risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP high-current switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTP20020DZTA | VCEO = -20V, IC = -5A, VCE(sat) = -50mV @ -1A - lower current rating and higher saturation voltage. | Suitable for lower-power 12V systems where thermal budget is tighter but peak current demand is ≤5A. | Select when board space or cost constraints outweigh need for 6A headroom; verify hFE drop at target load. |
| MJD2955T4G | VCEO = -60V, IC = -10A, TO-220 package - higher voltage rating and current capacity, but larger footprint and no AEC-Q101 qualification. | Used in industrial 48V power supplies or legacy automotive designs requiring higher blocking voltage. | Choose only if -60V blocking is mandatory and AEC-Q101 compliance is not required; expect 3× larger PCB area and different thermal interface. |
Compared with ZXTP20020DZTA and MJD2955T4G, ZXTP19020DZTA uniquely balances AEC-Q101 qualification, 6A continuous rating, and SOT89 thermal efficiency-making it optimal for space-constrained, automotive-grade high-side switches where reliability and thermal density are prioritized over ultra-high voltage or raw current headroom.
Availability
ZXTP19020DZTA is available at Aetrix Electronics and suitable for automotive power disconnect, battery charger control, and BLDC gate drive applications requiring stable component supply and long-term lifecycle support.
Supply support for ZXTP19020DZTA 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.
ZXTP19020DZTA belongs to Diodes' high-reliability bipolar transistor product line, engineered specifically for automotive and industrial power switching applications demanding robust thermal performance and AEC-Q101 compliance.
FAQ
What is the maximum allowable junction temperature for ZXTP19020DZTA?
The absolute maximum junction temperature is +150°C, as specified in the Thermal Characteristics table. Operation above this value risks permanent degradation of hFE and increased leakage. Derating begins at +25°C ambient, with PD decreasing linearly at 19.2 mW/°C when mounted on a 50mm×50mm 2oz Cu PCB.
Can ZXTP19020DZTA be used as a direct replacement for ZXTN19020DZ in complementary circuits?
No - ZXTP19020DZTA is PNP while ZXTN19020DZ is NPN; they are complementary types, not drop-in replacements. They are designed to be used together in push-pull or totem-pole configurations, with matched VCE(sat), hFE, and thermal characteristics for balanced switching behavior.
What is the recommended minimum base current to achieve full -6A collector conduction?
To achieve -6A with guaranteed hFE ≥65, a minimum base current of -92mA is required (IB = IC/hFE). However, the datasheet specifies -300mA base drive for VCE(sat) testing at -6A, ensuring deep saturation and minimizing thermal drift under load.
Does ZXTP19020DZTA require a heatsink in typical SOT89 mounting?
A dedicated heatsink is not required, but thermal performance depends critically on PCB layout. With 50mm×50mm of 2oz copper connected to the collector tab, RθJA = 51°C/W enables 2.4W dissipation at +25°C ambient. Smaller copper areas increase thermal resistance significantly - e.g., 15mm×15mm yields RθJA = 117°C/W, limiting usable power to ~1.1W.
ZXTP19020DZTA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 6 A
- Voltage - Collector Emitter Breakdown (Max):
- 20 V
- Vce Saturation (Max) @ Ib, Ic:
- 275mV @ 300mA, 6A
- Current - Collector Cutoff (Max):
- 50nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 300 @ 100mA, 2V
- Power - Max:
- 2.4 W
- Frequency - Transition:
- 176MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
ZXTP19020DZTA FAQ
1.How can I place an order for ZXTP19020DZTA through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXTP19020DZTA 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 ZXTP19020DZTA reliable?
The price and inventory of ZXTP19020DZTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXTP19020DZTA is usually 5 days.
3.What payment methods are accepted for ZXTP19020DZTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXTP19020DZTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXTP19020DZTA?
ZXTP19020DZTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXTP19020DZTA 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 ZXTP19020DZTA?
For technical support, including ZXTP19020DZTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXTP19020DZTA requirements.
6.How does Aetrix verify that ZXTP19020DZTA is sourced from the original manufacturer or authorized distributors?
All ZXTP19020DZTA 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 ZXTP19020DZTA meets industry standards.
7.What is the process for return or replacement of ZXTP19020DZTA?
All ZXTP19020DZTA units undergo pre-shipment inspection (PSI). If there is an issue with ZXTP19020DZTA, 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 ZXTP19020DZTA part is unused and in its original packaging.
Return procedure for ZXTP19020DZTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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