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Diodes Incorporated ZXTP2012ZQTA
- Part No.:
- ZXTP2012ZQTA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
ZXTP2012ZQTA.pdf
- Description:
- TRANS PNP 60V 4.3A SOT-89-3
- Quantity:
- Payment:
- Shipping:
Inventory:622
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Product details
Overview
ZXTP2012ZQTA from Diodes Incorporated is a 60V PNP low-saturation bipolar junction transistor in SOT89 package, rated for -4.3A continuous collector current, with VCE(sat) < -65mV at -1A, RSAT = 32mΩ, and hFE specified up to -10A - designed for high-efficiency power switching in motor drives and MOSFET/IGBT gate driving circuits.
For engineers reviewing the ZXTP2012ZQTA datasheet, ZXTP2012ZQTA pinout, ZXTP2012ZQTA application, or ZXTP2012ZQTA equivalent, key selection criteria include guaranteed low VCE(sat) at high current, thermal performance on 25mm² PCB, complementary NPN pairing (ZXTN2010Z), and automotive-grade variant availability (ZXTP2012ZQ).
Technical Context
This PNP transistor operates in linear and saturated switching modes, with BVCEO = -60V and BVCBO = -100V enabling robust blocking in high-side switch configurations. Its fT = 120MHz supports fast turn-on/turn-off transitions, while VBE(sat) = -1050mV at -5A ensures reliable base drive under heavy load.
Thermal design is enabled by RθJC = 21°C/W and RθJL = 3.23°C/W to exposed collector pad, allowing >2W steady-state dissipation on 50mm² copper - critical for sustained operation in backlight inverters and emergency lighting drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -60V - Maximum safe collector-emitter voltage before breakdown in common-emitter configuration |
| IC (cont.) | -4.3A - Continuous collector current rating defining maximum DC load-handling capability |
| VCE(sat) | < -65mV @ -1A - Low saturation voltage minimizes conduction loss in power switches |
| hFE | 90–300 @ -10A - High current gain maintained up to 10A enables efficient base drive scaling |
| RθJL | 3.23°C/W - Junction-to-lead thermal resistance confirms direct heat path via exposed collector pad |
| fT | 120MHz - Transition frequency supporting sub-100ns switching in gate driver applications |
| PD (50mm²) | 2.1W - Max steady-state power dissipation achievable on 50×50mm 1oz copper PCB |
Pinout & Package
Package: SOT89 - surface-mount plastic package with exposed collector pad for enhanced thermal conduction and mechanical stability; JEDEC-compliant outline with 1.5mm lead pitch and 4.5mm body length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Collector (C) | Main current sink terminal | Connected to exposed metal tab - primary thermal and electrical path for high-current discharge |
| Emitter (E) | Current source terminal | Common reference node in high-side switch topologies; ties to system ground or rail |
| Base (B) | Control input | Receives negative bias current to saturate transistor; requires current-limiting resistor in series |
Key Features
| Feature | Design Value |
|---|---|
| Low saturation resistance | RSAT = 32mΩ - reduces I²R losses in high-current switching paths |
| High current gain at full load | hFE ≥ 90 @ -10A - ensures stable saturation without excessive base drive power |
| Robust voltage blocking | BVCBO = -100V - supports operation with margin above 60V bus rails |
| Automotive-qualified variant | ZXTP2012ZQ available - AEC-Q101 qualified for under-hood and safety-critical systems |
| Green manufacturing compliance | Halogen- and antimony-free, RoHS 3 compliant - meets global environmental and regulatory requirements |
Applications
| Motor Driving (DC Fans) | Backlight Inverters |
|---|---|
Use Scenario: Driving brushed DC fan motors in HVAC and industrial control systems requiring PWM-controlled speed regulation. IC Role / Device Role / Timing Role: High-side PNP switch controlling current flow from positive rail to motor winding. Use Value: Low VCE(sat) < -65mV at -1A limits power loss and self-heating during continuous 4.3A operation. | Use Scenario: Switching high-voltage AC output stages in CCFL or LED backlight inverters for displays. IC Role / Device Role / Timing Role: Fast-switching PNP transistor in resonant half-bridge output stage. Use Value: fT = 120MHz and ton/toff = 39ns/370ns enable precise timing control of high-frequency AC generation. |
| Power Switches | Gate Driving MOSFETs/IGBTs |
Use Scenario: High-side load switching in emergency lighting and battery backup systems with 24–48V nominal rails. IC Role / Device Role / Timing Role: Saturated PNP switch delivering up to -4.3A to resistive or inductive loads. Use Value: RθJL = 3.23°C/W allows >2W dissipation without heatsink on standard PCB layout. | Use Scenario: Level-shifting and current-amplifying stage for driving N-channel MOSFET gates in half-bridge configurations. IC Role / Device Role / Timing Role: Active pull-down device providing fast turn-off current to gate capacitance. Use Value: VBE(sat) = -1050mV at -5A ensures strong negative gate drive even under high capacitive load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP power switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTP2020Z | VCEO = -20V, IC = -3A, VCE(sat) = -120mV @ -1A | Limited to ≤24V systems; higher saturation loss reduces efficiency in high-current loads | Select only when lower voltage rating and cost sensitivity outweigh thermal performance needs |
| MJD2955T4G | VCEO = -60V, IC = -10A, but SOT-223 package with RθJA = 60°C/W (vs. 60°C/W for ZXTP2012ZQTA on same board) | Larger footprint and lower power density; less suitable for space-constrained inverter designs | Prefer for legacy designs requiring TO-223 compatibility or higher peak current headroom |
Compared with ZXTP2012ZQTA, ZXTP2020Z trades voltage headroom and efficiency for cost, while MJD2955T4G offers higher current but sacrifices PCB area efficiency and thermal response time due to larger package mass and lower RθJL.
Availability
ZXTP2012ZQTA is available at Aetrix Electronics and suitable for motor driving (DC fans), backlight inverters, and high-side power switching applications requiring stable component supply, consistent parametric performance across production lots, and long-term lifecycle support.
Supply support for ZXTP2012ZQTA 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 power management, signal integrity, and protection solutions for industrial, computing, and automotive markets.
ZXTP2012ZQTA belongs to Diodes' low-saturation PNP transistor family, engineered specifically for high-efficiency, thermally constrained power switching in compact consumer and industrial power supplies.
FAQ
What is the maximum continuous collector current for ZXTP2012ZQTA?
The ZXTP2012ZQTA is rated for -4.3A continuous collector current at TA = +25°C with minimum recommended pad layout. Derating applies above +25°C ambient: linear derating factor is 16.8mW/°C when mounted on 50mm × 50mm 1oz copper PCB, yielding ~1.5W at +100°C ambient.
Is ZXTP2012ZQTA pin-compatible with its complementary NPN device?
No - ZXTP2012ZQTA (SOT89, PNP) and ZXTN2010Z (SOT89, NPN) share identical package outline and pin assignment (C-E-B), but polarity reversal means circuit-level substitution requires topology changes. Both devices use identical mechanical footprint and thermal pad layout, enabling symmetrical PCB design.
Does ZXTP2012ZQTA require a heatsink in typical applications?
Not typically - with RθJL = 3.23°C/W and RθJA = 60°C/W on 50mm² copper, it dissipates up to 2.1W at +25°C ambient without external heatsink. At 1.5W dissipation and +70°C ambient, junction temperature remains below 150°C, satisfying most industrial operating requirements.
What is the meaning of "QTA" suffix in ZXTP2012ZQTA?
The "QTA" suffix denotes tape-and-reel packaging per Diodes' ordering nomenclature: 1,000 units per 7-inch reel, 12mm tape width, with product marking "951". It is functionally identical to ZXTP2012Z-13R (4,000/reel) and ZXTP2012ZQ (automotive-grade version), differing only in packaging and qualification level.
ZXTP2012ZQTA 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):
- 4.3 A
- Voltage - Collector Emitter Breakdown (Max):
- 60 V
- Vce Saturation (Max) @ Ib, Ic:
- 215mV @ 500mA, 5A
- Current - Collector Cutoff (Max):
- 20nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 2A, 1V
- Power - Max:
- 1.5 W
- Frequency - Transition:
- 120MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
ZXTP2012ZQTA FAQ
1.How can I place an order for ZXTP2012ZQTA through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXTP2012ZQTA 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 ZXTP2012ZQTA reliable?
The price and inventory of ZXTP2012ZQTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXTP2012ZQTA is usually 5 days.
3.What payment methods are accepted for ZXTP2012ZQTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXTP2012ZQTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXTP2012ZQTA?
ZXTP2012ZQTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXTP2012ZQTA 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 ZXTP2012ZQTA?
For technical support, including ZXTP2012ZQTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXTP2012ZQTA requirements.
6.How does Aetrix verify that ZXTP2012ZQTA is sourced from the original manufacturer or authorized distributors?
All ZXTP2012ZQTA 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 ZXTP2012ZQTA meets industry standards.
7.What is the process for return or replacement of ZXTP2012ZQTA?
All ZXTP2012ZQTA units undergo pre-shipment inspection (PSI). If there is an issue with ZXTP2012ZQTA, 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 ZXTP2012ZQTA part is unused and in its original packaging.
Return procedure for ZXTP2012ZQTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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