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Diodes Incorporated FZT792ATA
- Part No.:
- FZT792ATA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
FZT792ATA.pdf
- Description:
- TRANS PNP 70V 2A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:10,856
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Product details
Overview
FZT792ATA from Diodes Incorporated is a 70V PNP medium-power transistor in SOT223 package, rated for -2A continuous collector current and featuring VCE(sat) < -450mV at -1A. It delivers high breakdown voltage (BVCEO = -70V), low thermal resistance (RθJL = 12.9°C/W), and fT = 160MHz, enabling use in battery-powered DC-DC converters and load switching circuits.
For engineers reviewing the FZT792ATA datasheet, FZT792ATA pinout, FZT792ATA application, or FZT792ATA equivalent, key selection criteria include its complementary pairing with FZT692B, RoHS-compliant matte tin plating, AEC-Q101 readiness for automotive-grade designs, and validated thermal performance on 25mm × 25mm 2oz copper PCBs.
Technical Context
This PNP bipolar junction transistor operates in linear and saturated switching modes with guaranteed BVCEO ≥ -70V and VBE(sat) ≤ -0.95V at -1A/-25mA drive. Its hFE ranges from 200 to 800 across IC = -10mA to -1A, supporting stable current amplification in feedback-controlled power stages.
The device uses a thermally optimized SOT223 (Type DN) package with exposed collector tab for direct heatsinking, achieving RθJA = 62.5°C/W on 25mm × 25mm 2oz FR4 - critical for sustained -1.5A operation at +85°C ambient without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -70V - supports rail-to-rail operation in 48V battery systems with 30% safety margin |
| IC (cont.) | -2A - enables direct driving of 10W loads (e.g., solenoids, LED arrays) without external heat sinks |
| VCE(sat) | -0.45V @ -1A/-25mA - limits conduction loss to ≤450mW, improving efficiency in high-duty-cycle switches |
| fT | 160MHz - ensures adequate gain at 50MHz switching frequencies used in Class-D audio and SMPS error amplifiers |
| RθJL | 12.9°C/W - allows junction temperature rise of only 13°C above lead temperature at 1W dissipation |
| hFE | 200–800 - provides predictable base drive requirements across production lots and temperature range (-55°C to +150°C) |
| ESD HBM | 4kV - meets IEC 61000-4-2 Level 3 for robustness in handheld and portable equipment assembly |
Pinout & Package
SOT223 (Type DN) surface-mount package with molded green compound (UL 94V-0), 0.112g mass, and matte tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Collector (Tab) | Main current path output terminal | Exposed metal tab serves as primary thermal path and must be connected to PCB copper pour for RθJL = 12.9°C/W performance |
| Emitter | Current source reference node | Connected to system ground or negative rail; carries full load current and sets VEB bias point |
| Base | Control input for current amplification | Requires -25mA drive for full saturation at -1A; compatible with standard logic-level microcontroller GPIO |
Key Features
| Feature | Design Value |
|---|---|
| High BVCEO (-70V) | Enables safe operation in 48V industrial bus and automotive 24V/42V architectures with margin against transients |
| Low VCE(sat) (-0.45V) | Reduces power loss by >30% versus legacy PNP transistors (e.g., MMBT2907A) at 1A, extending battery life |
| Complementary NPN pair (FZT692B) | Allows matched design of push-pull output stages with identical thermal and gain characteristics |
| AEC-Q101 readiness | Manufactured in IATF 16949-certified facilities with PPAP capability - suitable for automotive body electronics |
| Halogen- and antimony-free | Meets JEDEC J-STD-709C definitions (<900ppm Br/Cl, <1000ppm Sb) for "Green" compliance in EU and Asia markets |
Applications
| Automotive Door Lock Actuator | Industrial 48V DC-DC Converter |
|---|---|
Use Scenario: Driving 12V/0.8A solenoid lock via microcontroller PWM signal in vehicle door module. IC Role / Device Role / Timing Role: High-side PNP switch controlling solenoid current path with fast turn-off (toff = 750ns) to prevent mechanical bounce. Use Value: Low VCE(sat) minimizes heat generation during 100ms activation bursts; AEC-Q101 readiness ensures qualification for OEM production. | Use Scenario: Regulating 48V input to 12V/2A output using discrete linear pass element in backup power supply. IC Role / Device Role / Timing Role: Medium-power series pass transistor in adjustable LDO configuration with external error amplifier feedback. Use Value: 70V BVCEO accommodates 48V nominal + 20% surge; RθJL = 12.9°C/W enables stable operation without heatsink at 1.5W dissipation. |
| Portable Medical Infusion Pump | Smart Home Battery Management System |
Use Scenario: Controlling stepper motor phase current in compact infusion pump requiring silent, low-EMI operation. IC Role / Device Role / Timing Role: Linear current sink in microstepping driver stage, biased in active region for precise current control. Use Value: Tight hFE spread (200–800) ensures consistent current matching across channels; RoHS/Green compliance meets medical device environmental standards. | Use Scenario: Isolating and enabling/disabling 18650 Li-ion cell banks in smart home energy storage unit. IC Role / Device Role / Timing Role: Load switch for battery pack enable/disable function, controlled by MCU GPIO with integrated ESD protection. Use Value: 4kV HBM ESD rating eliminates need for external TVS diodes; SOT223 footprint simplifies layout in space-constrained BMS PCBs. |
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 |
|---|---|---|---|
| MMBT2907ALT1G | VCEO = -60V, IC = -600mA, RθJA = 300°C/W (SOT-23) | Limited to ≤12V systems; unsuitable for 48V battery rails or >0.5A loads | Select only for low-voltage, low-current logic-level switching where board space is critical |
| ZTX788B | VCEO = -80V, IC = -3A, but SOT-89 package with higher RθJA = 125°C/W | Better voltage headroom but requires heatsink above 1W; no AEC-Q101 qualification | Prefer for higher-voltage industrial controls where automotive qualification is not required |
Compared with MMBT2907ALT1G and ZTX788B, FZT792ATA uniquely balances 70V rating, 2A current, low thermal resistance, and automotive readiness - making it optimal for space-constrained, thermally demanding 24–48V portable and automotive power switches.
Availability
FZT792ATA is available at Aetrix Electronics and suitable for battery-powered circuits, automotive body electronics, industrial DC-DC converters, and portable medical devices requiring stable component supply and long-term manufacturability.
Supply support for FZT792ATA 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 centers across Asia and manufacturing in IATF 16949-certified facilities.
FZT792ATA belongs to Diodes' high-reliability discrete transistor product line, engineered specifically for automotive, industrial, and portable power management applications demanding robust thermal performance and AEC-Q101 readiness.
FAQ
What is the maximum continuous collector current for FZT792ATA at 100°C ambient temperature?
At TA = +100°C, the maximum continuous collector current is derated to -1.2A based on the 25mm × 25mm 2oz FR4 thermal curve (Note 6). This value assumes still-air conditions and proper PCB copper area; exceeding it risks junction temperature exceeding +150°C.
Is FZT792ATA pin-compatible with FZT692B?
No - FZT792ATA (PNP) and FZT692B (NPN) are complementary types with identical SOT223 package pinouts (C-E-B), but opposite polarity. They share mechanical compatibility for mirrored PCB layouts, not electrical interchangeability.
Does FZT792ATA require a base resistor when driven by a 3.3V microcontroller GPIO?
Yes - a base resistor is required to limit IB to -25mA for full saturation at -1A. With VBE(sat) ≈ -0.85V, a 100Ω resistor ensures safe drive from 3.3V GPIO while maintaining sufficient overdrive for reliable switching.
Can FZT792ATA be used in linear regulator applications?
Yes - its hFE stability (200–800) across -10mA to -1A and low VCE(sat) support use as a series pass element in adjustable linear regulators up to 1.5W dissipation, provided PCB copper area meets Note 6 thermal requirements.
FZT792ATA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 2 A
- Voltage - Collector Emitter Breakdown (Max):
- 70 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 200mA, 2A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 300 @ 10mA, 2V
- Power - Max:
- 2 W
- Frequency - Transition:
- 160MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
FZT792ATA FAQ
1.How can I place an order for FZT792ATA through Aetrix?
Please submit a Request for Quotation (RFQ) for FZT792ATA 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 FZT792ATA reliable?
The price and inventory of FZT792ATA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FZT792ATA is usually 5 days.
3.What payment methods are accepted for FZT792ATA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FZT792ATA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FZT792ATA?
FZT792ATA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FZT792ATA 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 FZT792ATA?
For technical support, including FZT792ATA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FZT792ATA requirements.
6.How does Aetrix verify that FZT792ATA is sourced from the original manufacturer or authorized distributors?
All FZT792ATA 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 FZT792ATA meets industry standards.
7.What is the process for return or replacement of FZT792ATA?
All FZT792ATA units undergo pre-shipment inspection (PSI). If there is an issue with FZT792ATA, 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 FZT792ATA part is unused and in its original packaging.
Return procedure for FZT792ATA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FZT792ATA Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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