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Diodes Incorporated FZT1151ATC
- Part No.:
- FZT1151ATC
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
FZT1151ATC.pdf
- Description:
- TRANS PNP 40V 3A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,232
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Product details
Overview
FZT1151ATC from Diodes Incorporated is a 40V PNP medium-power transistor in SOT223 package, rated for -3A continuous collector current and -5A peak pulse current, with VCE(sat) < -140mV at -1A and DC current gain (hFE) up to 450 at -500mA - used in automotive power switching, industrial DC-DC converter output stages, and high-reliability load control circuits.
For engineers reviewing the FZT1151ATC datasheet, FZT1151ATC pinout, FZT1151ATC application, or FZT1151ATC equivalent, key selection criteria include verified -40V VCEO, thermal resistance RθJA = 41.7°C/W on 52mm × 52mm 2oz copper, JEDEC-qualified reliability, AEC-Q101 automotive option availability, and SOT223 lead-frame thermal performance under sustained -3A conduction.
Technical Context
This PNP bipolar junction transistor operates in linear or saturated switching mode with specified hFE down to -3A (min 100) and -5A (min 45), enabling stable current amplification across its full rated range. Its low VCE(sat) of -140mV at -1A/–20mA base drive minimizes conduction loss in high-side switch configurations.
Thermal design is supported by validated RθJL = 10.9°C/W (junction-to-lead), allowing direct heat transfer from die to PCB copper via the collector tab. ESD robustness includes 4kV HBM per JESD22-A114, confirming suitability for assembly environments and end-use industrial handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -40V - maximum safe collector-emitter voltage before breakdown in common-emitter configuration |
| IC (continuous) | -3A - continuous collector current rating defining steady-state power stage capacity |
| VCE(sat) | < -140mV @ -1A - low saturation voltage enabling <140mW conduction loss at 1A load |
| hFE | 100–450 - DC current gain range supporting predictable base drive sizing from 100mA to 3A loads |
| fT | 145MHz - transition frequency indicating usable bandwidth for moderate-speed switching (~1–2MHz practical) |
| RθJA | 41.7°C/W - thermal resistance enabling ~72°C rise at 3W dissipation on optimized 52mm × 52mm 2oz copper |
| ESD HBM | 4,000V - human-body-model ESD rating confirming robustness during board handling and reflow |
Pinout & Package
Package: SOT223 (Type DN), surface-mount, thermally enhanced plastic case with exposed collector tab; molded "Green" compound (UL 94V-0), matte tin-plated leads, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Emitter (E) | Current sink terminal for PNP operation | Connected to higher potential rail; defines reference for base bias and current flow direction |
| Base (B) | Control input for minority-carrier injection | Requires negative current relative to emitter to turn on; typical drive ~20mA for 1A load |
| Collector (C) | Main current output terminal | Electrically and thermally connected to large copper pad; primary heat path to PCB |
| Tab / Collector Pad | Integrated thermal and electrical connection | Must be soldered to ≥52mm² 2oz copper for rated 3W dissipation; not electrically isolated |
Key Features
| Feature | Design Value |
|---|---|
| High-current PNP topology | Supports -3A continuous conduction with gain maintained to -5A, enabling single-device replacement of parallel BJTs |
| Low VCE(sat) at high IC | -140mV at -1A reduces power loss and self-heating in high-duty-cycle switching applications |
| JEDEC-qualified reliability | Qualified to AEC-Q101 stress test standards and manufactured in IATF 16949 facilities for automotive-grade traceability |
| SOT223 thermal interface | Exposed collector tab delivers RθJL = 10.9°C/W, enabling >2× power handling vs. standard SOT-23 equivalents |
Applications
| Automotive Body Control Module | Industrial DC-DC Converter Output Stage |
|---|---|
Use Scenario: Driving solenoids, relays, and LED arrays in door lock, mirror, and lighting subsystems. IC Role / Device Role / Timing Role: High-side PNP switch controlling 12V loads with logic-level base drive from MCU GPIO. Use Value: -40V VCEO withstands automotive load-dump transients; -3A rating supports multi-solenoid actuation without derating. | Use Scenario: Regulating output current in non-isolated buck or linear post-regulator stages. IC Role / Device Role / Timing Role: Pass element in adjustable linear regulator or synchronous rectifier driver stage. Use Value: Low VCE(sat) limits dropout voltage and thermal rise; hFE stability to -3A ensures predictable loop response. |
| Programmable Power Supply Load Switch | High-Reliability Fan Controller |
Use Scenario: Enabling/disabling power rails in lab-grade bench supplies with overcurrent protection feedback. IC Role / Device Role / Timing Role: Main series pass transistor controlled by analog current-sense amplifier and op-amp feedback. Use Value: Specified hFE at -5A allows precise current limiting at full 3A output; RθJA enables compact heatsinkless design. | Use Scenario: Controlling 24V brushless fan speed in telecom chassis with PWM base drive. IC Role / Device Role / Timing Role: High-side switch modulating fan voltage in response to thermal sensor signal. Use Value: 4kV HBM ESD rating prevents field failures during maintenance; SOT223 thermal mass sustains 100% duty cycle at 2A. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP medium-power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTN19020CFH | Higher VCEO (-60V), lower IC (-2A), SOT89 package, RθJA = 60°C/W | Better voltage margin but reduced current capacity and thermal performance | Select when system transients exceed -40V but load current stays ≤2A and PCB space is constrained |
| MJD44H11T4G | TO-252 package, -80V VCEO, -8A IC, RθJA = 30°C/W on large copper, hFE min 75 @ -8A | Higher power handling and voltage rating, but larger footprint and lower gain at full current | Select for >3A loads or harsher voltage environments where SOT223 thermal limits are exceeded |
Compared with ZXTN19020CFH and MJD44H11T4G, the FZT1151ATC offers optimal balance of current capability (-3A), thermal efficiency (41.7°C/W), and compact SOT223 form factor - making it preferred for space-constrained 12–24V systems requiring reliable 2–3A switching without TO-252 routing overhead.
Availability
FZT1151ATC is available at Aetrix Electronics and suitable for automotive body control modules, industrial DC-DC converter output stages, and programmable power supply load switches requiring stable component supply, JEDEC-qualified reliability, and RoHS-compliant green packaging.
Supply support for FZT1151ATC 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 distribution operations across Asia, Europe, and North America.
The FZT1151ATC belongs to Diodes' high-reliability PNP transistor product line, engineered for automotive and industrial power switching applications where consistent gain at high current, low saturation voltage, and thermal robustness are critical.
FAQ
What is the maximum allowable junction temperature for FZT1151ATC?
The FZT1151ATC has an operating junction temperature range of –55°C to +150°C. At maximum rated power dissipation (3.0W on 52mm × 52mm 2oz copper), junction temperature rise is limited to 125°C above ambient, ensuring safe operation within the full industrial temperature envelope when mounted per recommended pad layout.
Is FZT1151ATC pin-compatible with FZT1151A?
Yes - FZT1151ATC and FZT1151A share identical SOT223 (Type DN) package dimensions, pinout (Emitter-Base-Collector-Tab), and marking layout. The "TC" suffix denotes tape-and-reel packaging per Diodes' internal ordering convention and does not indicate functional or mechanical differentiation.
Does FZT1151ATC require a heatsink in standard applications?
No external heatsink is required if PCB layout follows Diodes' recommended 52mm × 52mm 2oz copper pad for the collector tab. Under those conditions, the device dissipates up to 3.0W with ≤125°C junction rise at 25°C ambient - sufficient for most 2–3A switching applications without added thermal hardware.
Can FZT1151ATC be used in linear regulator applications?
Yes - its specified hFE down to -3A and low VCE(sat) support stable operation as a series pass element. For linear regulation, ensure junction temperature remains ≤150°C using the derating curve: power must be reduced by 24mW/°C above 25°C ambient when using the 52mm × 52mm copper layout.
FZT1151ATC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 3 A
- Voltage - Collector Emitter Breakdown (Max):
- 40 V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 250mA, 3A
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 250 @ 500mA, 2V
- Power - Max:
- 2.5 W
- Frequency - Transition:
- 145MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
FZT1151ATC FAQ
1.How can I place an order for FZT1151ATC through Aetrix?
Please submit a Request for Quotation (RFQ) for FZT1151ATC 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 FZT1151ATC reliable?
The price and inventory of FZT1151ATC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FZT1151ATC is usually 5 days.
3.What payment methods are accepted for FZT1151ATC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FZT1151ATC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FZT1151ATC?
FZT1151ATC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FZT1151ATC 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 FZT1151ATC?
For technical support, including FZT1151ATC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FZT1151ATC requirements.
6.How does Aetrix verify that FZT1151ATC is sourced from the original manufacturer or authorized distributors?
All FZT1151ATC 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 FZT1151ATC meets industry standards.
7.What is the process for return or replacement of FZT1151ATC?
All FZT1151ATC units undergo pre-shipment inspection (PSI). If there is an issue with FZT1151ATC, 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 FZT1151ATC part is unused and in its original packaging.
Return procedure for FZT1151ATC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FZT1151ATC Tags
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