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Diodes Incorporated ZXTN2005ZTA
- Part No.:
- ZXTN2005ZTA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
ZXTN2005ZTA.pdf
- Description:
- TRANS NPN 25V 5.5A SOT-89-3
- Quantity:
- Payment:
- Shipping:
Inventory:753
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Product details
Overview
ZXTN2005ZTA from Diodes Incorporated is a 25V NPN medium-power bipolar junction transistor in SOT89 package, rated for 5.5A continuous collector current, with VCE(sat) ≤ 45mV at 6.5A/150mA drive, Rsat = 25mΩ equivalent on-resistance, and fT = 150MHz - used in DC motor drivers for automotive cabin fans.
For engineers reviewing the ZXTN2005ZTA datasheet, ZXTN2005ZTA pinout, ZXTN2005ZTA application, or ZXTN2005ZTA equivalent, key selection criteria include saturation voltage under high-current switching, thermal resistance (RθJA = 60°C/W on 2oz copper), and AEC-Q101 readiness for automotive solenoid control.
Technical Context
This NPN transistor operates as a low-saturation switch in medium-power linear and switching applications, supporting pulsed IC up to 20A with duty cycle ≤2% and pulse width ≤300μs. Its BVCER = 60V and BVCEO = 25V define safe operating voltage margins for 12V–24V systems.
Designed for thermally constrained PCB layouts, it delivers 2.1W power dissipation on 50mm×50mm 2oz copper (RθJA = 60°C/W), with VBE(sat) = 950mV and hFE = 275 at IC = 7A, enabling robust base-drive efficiency in relay and actuator interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 25V - maximum collector-emitter voltage before breakdown in common-emitter configuration |
| IC (continuous) | 5.5A - steady-state current handling capacity without thermal runaway on standard FR4 |
| VCE(sat) | 45mV @ 6.5A/150mA - enables <0.3W conduction loss in 24V fan motor drivers |
| fT | 150MHz - supports fast switching in backlight inverter gate drive stages |
| RθJA | 60°C/W - thermal resistance with 50mm×50mm 2oz copper, enabling 2.1W operation at +70°C ambient |
| hFE | 275 @ IC = 7A - ensures stable current gain in high-current solenoid coil control |
Pinout & Package
Package: SOT89 - surface-mount plastic case with matte tin-plated leads, UL 94V-0 rated, 0.05g weight, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Emitter) | Emitter terminal | Low-impedance return path; connected to ground or low-side return in switching circuits |
| Pin 2 (Base) | Control input | Receives current-limited drive signal to saturate or cut off the transistor |
| Pin 3 (Collector) | Power output node | Connected to load (e.g., motor winding or relay coil); carries full switched current |
Key Features
| Feature | Design Value |
|---|---|
| Low saturation voltage | VCE(sat) ≤ 45mV at 6.5A enables <0.3W conduction loss in 24V DC fan drivers |
| High current capability | 5.5A continuous rating supports direct drive of 10W–15W solenoids and relays |
| Thermal performance | RθJA = 60°C/W on 2oz copper allows 2.1W dissipation without heatsink in compact modules |
| AEC-Q101 readiness | Manufactured in IATF 16949 facilities; PPAP-capable for automotive lighting and HVAC subsystems |
Applications
| Emergency Lighting Control | DC Fan Motor Driver |
|---|---|
Use Scenario: High-reliability switching of LED arrays during mains failure in commercial emergency exit signs. IC Role / Device Role / Timing Role: NPN power switch controlling current path to LED string via constant-current regulator feedback loop. Use Value: Low VCE(sat) minimizes heat generation in sealed enclosures; 150°C max TJ rating ensures operation under sustained overload. | Use Scenario: PWM-controlled 24V cabin blower motor in automotive HVAC systems. IC Role / Device Role / Timing Role: Medium-power switching element in low-side driver stage, interfacing microcontroller GPIO to motor winding. Use Value: 5.5A IC and 275 hFE enable single-transistor drive without external Darlington stage, reducing BOM count. |
| Solenoid Actuator Interface | Backlight Inverter Stage |
Use Scenario: Driving 12V/2A fuel injector solenoids in engine control modules requiring fast turn-on/turn-off. IC Role / Device Role / Timing Role: High-current saturated switch activated by MCU PWM with active flyback diode protection. Use Value: 464ns toff and 33ns ton support 20kHz+ PWM frequencies while maintaining precise duty-cycle control. | Use Scenario: High-frequency switching stage in CCFL backlight inverters for industrial displays. IC Role / Device Role / Timing Role: Fast-switching NPN transistor in Royer oscillator topology driving step-up transformer primary. Use Value: 150MHz fT and low Cobo = 48pF ensure stable oscillation above 50kHz with minimal phase lag. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN medium-power switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTN25012ZTA | VCEO = 30V, IC = 4A, VCE(sat) = 55mV @ 4A - higher voltage rating but lower current and higher saturation loss | Better suited for 24V industrial PLC outputs where voltage margin >30V is required | Select when system overvoltage transients exceed 25V but load current remains ≤4A |
| MJD122-13 | VCEO = 100V, IC = 8A, VCE(sat) = 1.2V @ 8A - much higher voltage rating but significantly higher saturation loss | Used in legacy 48V telecom power supplies where low VCE(sat) is secondary to breakdown safety | Choose only if absolute VCEO >60V is mandatory and thermal budget allows >9W conduction loss |
Compared with ZXTN2005ZTA, ZXTN25012ZTA trades current capacity for voltage headroom, while MJD122-13 sacrifices saturation efficiency for ruggedness - making ZXTN2005ZTA optimal for thermally constrained 12V–24V automotive and industrial switching where <50mV VCE(sat) directly reduces board-level heating.
Availability
ZXTN2005ZTA is available at Aetrix Electronics and suitable for emergency lighting circuits, DC fan motor drivers, solenoid actuator interfaces, and backlight inverter stages requiring stable component supply across automotive, industrial, and commercial production programs.
Supply support for ZXTN2005ZTA 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 North America.
ZXTN2005ZTA belongs to Diodes' ZXT series of medium-power bipolar transistors engineered specifically for high-efficiency, thermally optimized switching in automotive HVAC, industrial actuators, and commercial lighting systems.
FAQ
What is the maximum allowable junction temperature for ZXTN2005ZTA?
The absolute maximum junction temperature is +150°C, with storage temperature ranging from –55°C to +150°C. Operation at rated current requires thermal design ensuring junction temperature stays below this limit - for example, using 50mm×50mm 2oz copper yields RθJA = 60°C/W, allowing 2.1W dissipation at +70°C ambient.
Is ZXTN2005ZTA qualified to AEC-Q101?
ZXTN2005ZTA is manufactured in IATF 16949-certified facilities and is PPAP-capable; Diodes states that parts for automotive applications requiring AEC-Q101 qualification are available upon request and subject to specific change control - contact Diodes or an authorized representative to initiate qualification for your program.
Can ZXTN2005ZTA be used in linear amplifier configurations?
No - ZXTN2005ZTA is optimized for saturated switching operation, not linear amplification. Its hFE variation (40–450) and lack of specified linearity parameters (e.g., distortion, output impedance) make it unsuitable for analog gain stages; use dedicated RF or audio transistors like BC847 or MMBT5551 instead.
What is the recommended PCB pad layout for SOT89 mounting?
Diodes specifies a standardized SOT89 footprint with thermal pad dimensions matching the exposed collector tab (D2 ≈ 1.71mm, E2 ≈ 2.20mm). The recommended layout includes a 25mm² copper pour connected to Pin 3 (collector) for thermal relief, per their package outline document PN-000012, accessible at diodes.com/package-outlines.html.
ZXTN2005ZTA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 5.5 A
- Voltage - Collector Emitter Breakdown (Max):
- 25 V
- Vce Saturation (Max) @ Ib, Ic:
- 200mV @ 150mA, 6.5A
- Current - Collector Cutoff (Max):
- 20nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 300 @ 1A, 1V
- Power - Max:
- 2.1 W
- Frequency - Transition:
- 150MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
ZXTN2005ZTA FAQ
1.How can I place an order for ZXTN2005ZTA through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXTN2005ZTA 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 ZXTN2005ZTA reliable?
The price and inventory of ZXTN2005ZTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXTN2005ZTA is usually 5 days.
3.What payment methods are accepted for ZXTN2005ZTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXTN2005ZTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXTN2005ZTA?
ZXTN2005ZTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXTN2005ZTA 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 ZXTN2005ZTA?
For technical support, including ZXTN2005ZTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXTN2005ZTA requirements.
6.How does Aetrix verify that ZXTN2005ZTA is sourced from the original manufacturer or authorized distributors?
All ZXTN2005ZTA 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 ZXTN2005ZTA meets industry standards.
7.What is the process for return or replacement of ZXTN2005ZTA?
All ZXTN2005ZTA units undergo pre-shipment inspection (PSI). If there is an issue with ZXTN2005ZTA, 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 ZXTN2005ZTA part is unused and in its original packaging.
Return procedure for ZXTN2005ZTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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