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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Diodes Incorporated ZXTP25020DZTA

Name: ZXTP25020DZTA
Brand: Diodes Incorporated
SKU: ZXTP25020DZTA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ZXTP25020DZTA

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

Package:: TO-243AA

Datasheet:: ZXTP25020DZTA.pdf

Description:: TRANS PNP 20V 5A SOT-89-3

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Product details

Overview

ZXTP25020DZTA from Diodes Incorporated is a 20V PNP high-gain bipolar junction transistor in SOT89 package, rated for -5A continuous collector current, with V_CE(sat) < -0.5V at -50mA and R_sat = 39mΩ, optimized for high-efficiency load switching and gate drive in DC-DC converters and motor control circuits.

For engineers reviewing the ZXTP25020DZTA datasheet, ZXTP25020DZTA pinout, ZXTP25020DZTA application, or ZXTP25020DZTA equivalent, key selection criteria include verified V_CEO = -20V, h_FE ≥ 300 at -10mA, thermal resistance R_θJC = 7.95°C/W, complementary pairing with ZXTN25020DZ, and SOT89 mounting compatibility with 50mm × 50mm copper pad for 2.4W dissipation.

Technical Context

This PNP transistor operates as a high-current, low-saturation switch with BV_CEO = -20V and BVEBO = -7V, supporting reverse-blocking up to -4V (VECO). Its f_T = 290MHz enables fast switching in gate-drive applications where transition times are critical-td = 14.2ns, tr = 16.3ns, ts = 186ns, tf = 32.7ns under -1A pulsed conditions.

Thermal performance is defined across five mounting configurations: R_θJA ranges from 117°C/W (15mm × 15mm PCB) to 28°C/W (short-duration pulse), with R_θJC = 7.95°C/W confirming efficient heat transfer from junction to collector tab-essential for sustained -5A operation when heatsinked.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	-20V - Maximum safe collector-emitter reverse voltage before breakdown in common-emitter configuration.
I_C (cont.)	-5A - Continuous collector current rating enabling direct drive of power MOSFET/IGBT gates or motor windings without external buffering.
V_CE(sat)	-195mV @ -5A/-500mA - Low saturation voltage ensures <1W conduction loss at full rated current, critical for thermal management.
h_FE	450 @ -10mA - High DC current gain allows minimal base drive current, reducing driver-stage power consumption.
R_θJC	7.95°C/W - Confirmed junction-to-case thermal resistance supports direct heatsinking via collector tab for high-power switching.
f_T	290MHz - Transition frequency validates suitability for sub-100ns switching waveforms in synchronous rectification and PWM gate drive.
C_obo	157pF @ -10V - Output capacitance impacts turn-off speed and EMI in high-frequency switching; value measured at typical bias point.

Pinout & Package

Package: SOT89 - Surface-mount plastic package with exposed collector tab for thermal conduction; dimensions per JEDEC MO-220, 4.5mm × 2.5mm footprint, 1.05mm height, 0.05g mass.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Emitter)	E	Current source terminal in PNP operation; connected to higher potential rail in high-side switch configurations.
Pin 2 (Collector)	C	Main current sink terminal; electrically and thermally tied to exposed metal tab for heatsinking and low-inductance layout.
Pin 3 (Base)	B	Control input requiring negative bias relative to emitter to forward-bias BE junction and enable conduction.

Key Features

Feature	Design Value
Low R_sat	39mΩ equivalent on-resistance reduces I²R losses during conduction, improving efficiency in battery-powered load switches.
High h_FE stability	h_FE ≥ 200 at -1A and ≥ 45 at -5A ensures predictable base drive requirements across full current range.
Fast switching	14.2ns delay + 16.3ns rise + 186ns storage + 32.7ns fall enables ≤500kHz PWM operation with controlled edge rates.
AEC-Q101 readiness	Manufactured in IATF 16949-certified facilities; supports automotive qualification path upon request with PPAP capability.

Applications

DC-DC Converters

Load Switch

Use Scenario: Synchronous rectification in buck converter secondary side with 12V–24V input and 3.3V–5V output.

IC Role / Device Role / Timing Role: High-side PNP switch replacing Schottky diode to reduce forward drop and improve light-load efficiency.

Use Value: V_CE(sat) = -195mV at -5A cuts conduction loss by >60% vs. 0.4V Schottky, directly increasing conversion efficiency by 2–3%.

Use Scenario: Hot-swap control for 5V/3A peripheral rail in industrial PLC backplane.

IC Role / Device Role / Timing Role: Low-loss series pass element with fast turn-off to limit inrush and fault current.

Use Value: 39mΩ R_sat limits voltage drop to <150mV at full load, while 186ns storage time enables rapid current cutoff during overcurrent events.

Motor Drive

MOSFET/IGBT Gate Drive

Use Scenario: H-bridge high-side driver for 24V brushed DC motor with 2A stall current.

IC Role / Device Role / Timing Role: Level-shifted PNP switch controlling gate voltage of N-channel power FETs.

Use Value: -20V V_CEO safely withstands motor flyback transients; h_FE ≥ 300 minimizes required gate-driver current.

Use Scenario: Totem-pole gate driver stage for 600V IGBT in 1kW inverter half-bridge.

IC Role / Device Role / Timing Role: Active pull-down device providing fast, low-impedance discharge path for IGBT gate.

Use Value: 290MHz f_T and 32.7ns fall time ensure gate voltage collapse within 50ns, suppressing 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
ZXTP2012ZTA	V_CEO = -20V, I_C = -2A, V_CE(sat) = -220mV @ -2A, R_θJA = 125°C/W (SOT89)	Lower current rating and higher saturation voltage limit use to ≤2A loads; less suitable for 5A motor drive or gate drive with high C_iss.	Select when board space or cost constraints outweigh need for 5A capability and thermal headroom.
MMBT6427LT1G	V_CEO = -20V, I_C = -1A, V_CE(sat) = -250mV @ -500mA, SOT23 package, R_θJA = 300°C/W	Not pin-compatible; lower power handling and inferior thermal performance restrict use to signal-level or low-duty-cycle switching.	Choose only for space-constrained designs where <1A peak current and ambient cooling suffice.

Compared with ZXTP25020DZTA, ZXTP2012ZTA offers reduced current capacity but identical voltage rating and package, while MMBT6427LT1G trades thermal robustness and current for ultra-small footprint-neither matches the 5A/2.4W/7.95°C/W combination essential for high-reliability power switching.

Availability

ZXTP25020DZTA is available at Aetrix Electronics and suitable for DC-DC converters, motor drive circuits, and MOSFET/IGBT gate drive applications requiring stable component supply, automotive-grade traceability, and long-term production continuity.

Supply support for ZXTP25020DZTA 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, manufacturing, and sales operations across Asia, Europe, and the Americas.

ZXTP25020DZTA belongs to Diodes' high-performance bipolar transistor product line, engineered specifically for high-current, low-saturation switching in power management and motor control systems where thermal efficiency and reliability are critical.

FAQ

What is the maximum continuous collector current for ZXTP25020DZTA?

The ZXTP25020DZTA is rated for -5A continuous collector current at T_A = +25°C with appropriate PCB copper area (50mm × 50mm, 1oz). Derating applies above +25°C per R_θJA = 51°C/W; at +100°C ambient, max continuous current drops to approximately -2.8A to maintain T_J ≤ +150°C.

Is ZXTP25020DZTA suitable for automotive applications?

ZXTP25020DZTA is manufactured in IATF 16949-certified facilities and supports PPAP documentation. While not pre-qualified to AEC-Q101, Diodes Incorporated offers qualification support upon request for automotive programs-contact your local representative to initiate change-controlled qualification.

How does the SOT89 package enhance thermal performance?

The SOT89 package features an exposed collector tab that serves as both electrical connection and primary thermal path. With R_θJC = 7.95°C/W, it enables direct attachment to heatsinks or large copper planes, achieving up to 2.4W dissipation-nearly double the capability of standard SOT23 devices with similar footprint.

What is the complementary NPN part number for ZXTP25020DZTA?

The officially designated complementary NPN part is ZXTN25020DZ, sharing identical voltage ratings (V_CEO = +20V), current capability (+5A), SOT89 package, and thermal characteristics. Both parts are designed for matched performance in push-pull or H-bridge topologies.

ZXTP25020DZTA 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):: 5 A

Voltage - Collector Emitter Breakdown (Max):: 20 V

Vce Saturation (Max) @ Ib, Ic:: 265mV @ 500mA, 5A

Current - Collector Cutoff (Max):: 50nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 300 @ 10mA, 2V

Power - Max:: 2.4 W

Frequency - Transition:: 290MHz

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-89-3

ZXTP25020DZTA FAQ

1.How can I place an order for ZXTP25020DZTA through Aetrix?

Please submit a Request for Quotation (RFQ) for ZXTP25020DZTA 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 ZXTP25020DZTA reliable?

The price and inventory of ZXTP25020DZTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXTP25020DZTA is usually 5 days.

3.What payment methods are accepted for ZXTP25020DZTA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXTP25020DZTA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ZXTP25020DZTA?

ZXTP25020DZTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ZXTP25020DZTA 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 ZXTP25020DZTA?

For technical support, including ZXTP25020DZTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXTP25020DZTA requirements.

6.How does Aetrix verify that ZXTP25020DZTA is sourced from the original manufacturer or authorized distributors?

All ZXTP25020DZTA 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 ZXTP25020DZTA meets industry standards.

7.What is the process for return or replacement of ZXTP25020DZTA?

All ZXTP25020DZTA units undergo pre-shipment inspection (PSI). If there is an issue with ZXTP25020DZTA, 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 ZXTP25020DZTA part is unused and in its original packaging.

Return procedure for ZXTP25020DZTA:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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